[web2py] Re: Include another file, but do not process it
Thanks Anthony, looks like a good solution.
On Sunday, February 15, 2015 at 2:35:23 AM UTC+1, Anthony wrote:
Maybe something like this:
In a model file or module:
def include_hbs(view_path):
import os
response.write(open(os.path.join(request.folder, 'views', view_path),
'rb').read(),
escape=False)
In the view:
{{include_hbs('dashboard.hbs')}}
You might also add an option to cache in RAM for some period of time.
Anthony
On Saturday, February 14, 2015 at 6:42:38 AM UTC-5, Daniel Gonzalez wrote:
Hi,
This is my use case: I have some web2py templates which are serving some
views with embedded handlebar templates, which are intended for processing
on the client side: they must arrive untouched to the browser.
The problem is that handlebars and web2py have by default the same
delimiters: {{ }}
I can change these default settings for either web2py or handlebars, but
this has some unintended consequences. For example, I need to go around
configuring tools to understand these changes, like code highlighters
(web-mode in emacs, etc) which is not always obvious / possible to do.
So, I would prefer to stick to the default delimiters. What I would like
is something like this:
!-- my-view.html: web2py / html code --
...
{{include 'dashboard.hbs'}}
!-- dashboard.hbs: handlebars stuff --
{{sdfsdf}}
But I would like the web2py engine not to process dashboard.hbs, and
serve it as-is.
Web2py could make this decision based on the extension of the file (do
not process .hbs files) or with a flag to disable processing for a
specific include: {{include 'dashboard.hbs' dont-process}}
Is this implemented? I have found no documentation regarding the web2py
include statement (there is documentation scattered around the guide, but
nothing specific as far as I can see).
Thanks!
DanG
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[web2py] Include another file, but do not process it
Hi,
This is my use case: I have some web2py templates which are serving some
views with embedded handlebar templates, which are intended for processing
on the client side: they must arrive untouched to the browser.
The problem is that handlebars and web2py have by default the same
delimiters: {{ }}
I can change these default settings for either web2py or handlebars, but
this has some unintended consequences. For example, I need to go around
configuring tools to understand these changes, like code highlighters
(web-mode in emacs, etc) which is not always obvious / possible to do.
So, I would prefer to stick to the default delimiters. What I would like is
something like this:
!-- my-view.html: web2py / html code --
...
{{include 'dashboard.hbs'}}
!-- dashboard.hbs: handlebars stuff --
{{sdfsdf}}
But I would like the web2py engine not to process dashboard.hbs, and serve
it as-is.
Web2py could make this decision based on the extension of the file (do not
process .hbs files) or with a flag to disable processing for a specific
include: {{include 'dashboard.hbs' dont-process}}
Is this implemented? I have found no documentation regarding the web2py
include statement (there is documentation scattered around the guide, but
nothing specific as far as I can see).
Thanks!
DanG
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[web2py] define_table does not create table in database
I am running `define_tables` in the recommended way:
db = DAL('postgres://user:@localhost:5432/mydb',
migrate_enabled=False, auto_import=False, lazy_tables=True)
db.define_table('auth_user',
Field('email', unique=True),
Field('password', length=512, type='password', readable=False,
label='Password'),
...)
This gets executed without errors, but no table is created in the database.
Whenever I try to insert a new user:
relation auth_user does not exist
What can be going on? Once the tables are created (manually, for example),
the application works fine. I am using a postgres backend. This happens no
matter what value I give to `lazy_tables`
EDIT
This is the full test script:
from gluon import DAL
from gluon import Field
db = DAL('postgres://user:pass@localhost:5432/mydb',
migrate_enabled=False)
db.define_table(
'auth_user',
Field('email', type='string', unique=True),
Field('password', type='password'),
Field('registration_key', type='string', length=512,
writable=False, readable=False, default=''),
Field('reset_password_key', type='string', length=512,
writable=False, readable=False, default=''),
Field('registration_id',type='string', length=512,
writable=False, readable=False, default=''),
)
db.commit()
print db.tables
db.auth_user.insert(email='g@b.c')
And I get the following output:
['auth_user']
Traceback (most recent call last):
File xxx.py, line 19, in module
db.auth_user.insert(email='g@b.c')
File /tmp/web2py/gluon/dal.py, line 9293, in insert
ret = self._db._adapter.insert(self, self._listify(fields))
File /tmp/web2py/gluon/dal.py, line 1361, in insert
raise e
psycopg2.ProgrammingError: relation auth_user does not exist
LINE 1: INSERT INTO auth_user(reset_password_key,registration_id,reg...
The table is somehow created (in memory?), but it is not really in the
postgres database. What does this mean?
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[web2py] Re: define_table does not create table in database
Thanks for your reply, Migrate is not the problem: it does not matter if I do migrate_enabled=False or migrate_enabled=True. Besides, there is no table to migrate. That is the whole problem: define_table does not create the table! I am doing my own define_table because I have need to trigger some other code whenever new users are created (not shown here) Why does db.tables show that the table is created, when it is not? (verified with pgadmin) BR, Daniel On Thursday, October 30, 2014 11:49:25 AM UTC+1, Leonel Câmara wrote: Well the tables are lazy, but that shouldn't cause your problem because once you use them they really get defined. May I ask why you are defining your own user table instead of using auth.define_tables()? Anyway, your problem is caused by migrate_enabled=False. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: define_table does not create table in database
One more thing: you mention tables are lazy, but the documentation says they are lazy only whenever DAL(...,lazy_tables=True) is set (DAL documentation http://www.web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#DAL-constructor ) Which one is right? -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: define_table does not create table in database
Getting closer to identifying my problem. It seems I am having several problems at once. First, it seems that migrate_enabled=False prevents not only migrations, but also table creation (am I right here?) Second: while trying to guess the problems with my application, I am using the test script provided. Running manually that script, and at the same time working with pgadmin (that is, manually creating / droping databases/tables), causes serious conflicts with web2py. It seems web2py has its own caching mechanism on the file system for the table definitions (pickled objects?) I have now clarified that, and to mitigate those problems I am doing: 1. drop database, remove pickled files, restart web2py 2. Do not use lazy_tables and enable migrations (this ensures that the tables will be created exactly on the call to define_tables) 3. Call .commit(). I have the code to define_tables outside in a module, and according to the manual, no autocommit is performed for modules. The reason I am doing this is that I want to be able to reuse the same code from outside my web2py application, for maintenance/reporting purposes: I have a library with all web2py related functionality, which I can call from the web2py application itself, or simply from an external script. But still, I see a problem: I can see clearly in the sql.log file that my define_table creates the table as I want, but immediately after, auth.define_tables() modifies that table: drops my fields, adds the standard auth fields. According to the manual (http://web2py.com/books/default/chapter/29/9#Customizing-Auth): If a table is declared beforeauth.define_tables() it is used instead of the default one I would expect that Auth sees that auth_user is already defined, skip the definition of that table, and define the other auth tables. But in my case it seems auth is overwrriting the table defintion. Why can this be? BR, Daniel On Thursday, October 30, 2014 1:04:27 PM UTC+1, Anthony wrote: On Thursday, October 30, 2014 7:41:07 AM UTC-4, Leonel Câmara wrote: Well lazy_tables=True is the default. Actually, it does default to False, but that's not the issue here. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: define_table does not create table in database
I have solved my problem. I was not properly reusing the db (DAL object) in my library. Instead, a new DAL connection was being created in some cases. Therefore, even though the tables were defined at the pyhton level, auth was not really aware of it, and was trying to redefine them. Facit: make sure that a single db object is used in the models and in any external modules. Thanks for your assistance! Daniel Gonzalez On Thursday, October 30, 2014 4:29:26 PM UTC+1, Daniel Gonzalez wrote: Getting closer to identifying my problem. It seems I am having several problems at once. First, it seems that migrate_enabled=False prevents not only migrations, but also table creation (am I right here?) Second: while trying to guess the problems with my application, I am using the test script provided. Running manually that script, and at the same time working with pgadmin (that is, manually creating / droping databases/tables), causes serious conflicts with web2py. It seems web2py has its own caching mechanism on the file system for the table definitions (pickled objects?) I have now clarified that, and to mitigate those problems I am doing: 1. drop database, remove pickled files, restart web2py 2. Do not use lazy_tables and enable migrations (this ensures that the tables will be created exactly on the call to define_tables) 3. Call .commit(). I have the code to define_tables outside in a module, and according to the manual, no autocommit is performed for modules. The reason I am doing this is that I want to be able to reuse the same code from outside my web2py application, for maintenance/reporting purposes: I have a library with all web2py related functionality, which I can call from the web2py application itself, or simply from an external script. But still, I see a problem: I can see clearly in the sql.log file that my define_table creates the table as I want, but immediately after, auth.define_tables() modifies that table: drops my fields, adds the standard auth fields. According to the manual ( http://web2py.com/books/default/chapter/29/9#Customizing-Auth): If a table is declared beforeauth.define_tables() it is used instead of the default one I would expect that Auth sees that auth_user is already defined, skip the definition of that table, and define the other auth tables. But in my case it seems auth is overwrriting the table defintion. Why can this be? BR, Daniel On Thursday, October 30, 2014 1:04:27 PM UTC+1, Anthony wrote: On Thursday, October 30, 2014 7:41:07 AM UTC-4, Leonel Câmara wrote: Well lazy_tables=True is the default. Actually, it does default to False, but that's not the issue here. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [web2py] Re: Proposal: create namespaces for translation system
The idea is exactly for this. To have separated localized components. I hope that in a few weeks/months we can release something that we are working on components. I cannot say to much now :) 2013/9/23 Massimo Di Pierro massimo.dipie...@gmail.com I was skeptical but I have been convinced this is an excellent idea. Your patch is going to trunk now. Thank you! On Monday, 23 September 2013 02:13:10 UTC-5, jamarcer wrote: Hello: I'm Demetrio's mate, and he asked me to upgrade the T with namespaces functionality into trunk (Version 2.6.3-stable+timestamp.2013.** 09.18.14.36.14). I have added a comment into 1196 issue with a code patch and a explanation. https://code.google.com/p/**web2py/issues/detail?id=1196https://code.google.com/p/web2py/issues/detail?id=1196 I hope it will be usefull. Best regards. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Proposal: create namespaces for translation system
Hello Massimo, We'll try to have it at the end of the month. We had applied it to production and is a 1.99.7 version and the trunk version has changed a lot. One question, what do you mean with use . instead of app_name? Regards 2013/9/1 Massimo Di Pierro massimo.dipie...@gmail.com Hello Demetrio, sorry for the late response. Could you please resend your patch, make sure it applies to trunk, and use . instead of app_name? On Thursday, 29 November 2012 06:17:22 UTC-6, demetrio wrote: Hi everyone I post a reply in the web3py thread in this mailing list asking for a site where make a wishlist, but thinking about what I would want in web3py, I realized that I needed in web2py already so I have make a patch for the actual translation system in the gluon/languages.py file. One of the lacks that I see in the translation system is that is a little difficult to maintain the language file in large applications like the one I am developing at this moment. Think about modules that you can plug or unplug of your application, and each have their own strings, or something more common, the pluggin system. Actually if you want to install a plugin like plugin_wiki you have to do your own translation because you cannot insert translation files (if actually web2py supports this... do it I don't know how to make it xD). It would be great to have a community where you can make plugins and add the language files inside. This is what makes the patch: Allows to use a namespace parameter in the T() like this T(Hello World, namespace=plugin_wiki) So in the languages/ folder will appear this: - languages/ - en_en.py - plugin_wiki/ - en_en.py so if you use T(Hello World, namespace=plugin_wiki) it will go to find the string into languates/plugin_wiki/*your_**lang*.py and if you use the common way T(Hello World) it will go as always to languages/*your_lang*.py I haven't tested it enough but it works for me at now, and I haven't written the part for the admin interface where you can push the button for refreshing the lang files (I don't get on wiht the RegExp at all) My 2 cents I hope that I can send the patch to the list -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Catch-all function in controller
Hi,
I have an api.py module which is the interface to my restful api. Currently
I have to do the following to extend my api:
def common(obj):
response.view = 'generic.json'
response.headers['Content-Type'] = CONTENT_TYPE_JSON
def GET(*args,**vars):
return api_router(API_GET, obj, *args, **vars)
def POST(*args,**vars):
return api_router(API_POST, obj, *args, **vars)
def PUT(*args,**vars):
return api_router(API_PUT, obj, *args, **vars)
def DELETE(*args, **vars):
return api_router(API_DELETE, obj, *args, **vars)
return dict(GET=GET, POST=POST, PUT=PUT, DELETE=DELETE)
@request.restful()
def index():
return common('root')
@request.restful()
def nodes():
return common('nodes')
@request.restful()
def agents():
return common('agents')
...
For any new object that I want to offer via my api, I need to list it as
@request.restful funcion, and link to common (the common api
implementation). I would like to define this common function as the
catch-all restful function for my api. My api_router already knows which
objects are supported, and replies with 404 if a requested object is not
supported, so it makes no sense for me to be forced to do this again on the
controller.
How can I define this catch-all function in my api controller?
Thanks,
Daniel
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[web2py] URL for static assets produces wrong value?
Hi,
I have a strange use case, which is maybe not covered by the router / URL
implementation.
I have just started using a second application, and I have modified my
routes.py:
routes_in = (
('/admin(?Pany.*)', '/admin\gany'),
('/app1(?Pany.*)','/app1\gany'),
('/(?Pany.*)','/app2/\gany'),
)
routes_out = (
('/admin(?Pany.*)', '/\gany'),
('/app1(?Pany.*)', '/\gany'),
('/app2/(?Pany.*)', '/\gany'),
)
(app2 is my default app, which should be accessible at the root of the url)
In my app1 I am doing something like this:
URL('static','images/image01.png')
And I was expecting a url like: /app1/static/images/image01.png
Instead, I am getting: //static/images/image01.png
So the application part is skipped. Is this normal? Can I solve this
problem somehow?
Thanks,
Daniel
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[web2py] Re: URL for static assets produces wrong value?
Oos. Sorry, sorry, sorry. My bad. My router rules had an slash too
many. Here are the correct ones:
routes_in = (
('/admin(?Pany.*)', '/admin\gany'),
('/app1(?Pany.*)','/app1\gany'),
('/(?Pany.*)','/app2/\gany'),
)
routes_out = (
('/admin(?Pany.*)', '\gany'),
('/app1(?Pany.*)', '\gany'),
('/app2/(?Pany.*)', '/\gany'),
)
And that works. Sorry again.
On Thursday, May 30, 2013 8:12:26 PM UTC+2, Daniel Gonzalez wrote:
Hi,
I have a strange use case, which is maybe not covered by the router / URL
implementation.
I have just started using a second application, and I have modified my
routes.py:
routes_in = (
('/admin(?Pany.*)', '/admin\gany'),
('/app1(?Pany.*)','/app1\gany'),
('/(?Pany.*)','/app2/\gany'),
)
routes_out = (
('/admin(?Pany.*)', '/\gany'),
('/app1(?Pany.*)', '/\gany'),
('/app2/(?Pany.*)', '/\gany'),
)
(app2 is my default app, which should be accessible at the root of the url)
In my app1 I am doing something like this:
URL('static','images/image01.png')
And I was expecting a url like: /app1/static/images/image01.png
Instead, I am getting: //static/images/image01.png
So the application part is skipped. Is this normal? Can I solve this
problem somehow?
Thanks,
Daniel
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[web2py] Re: Support for internationalization in web2py wiki
In the same way as internationalization is handled in the T operator? That means that an accept-language: it- it would tell the wiki engine to look for pages corresponding to the URL which are marked in the database as being in italian. That means: 1. a new field is needed in the database to mark the language the page is written in 2. the wiki engine would select that page 3. a fall back mechanism would return a page in a default language (english?) 4. when creating new wiki entries, the support views would offer a drop-down to specifiy the language in which the page is being created (which would default to the accept-language setting) On Tuesday, May 28, 2013 10:29:27 PM UTC+2, Massimo Di Pierro wrote: There is not. The problem is that normal internationalization libraries are not appropriate for wiki pages. I would recommended using different pages for different languages. In your opinion, how should internationalization for wiki pages work? On Tuesday, 28 May 2013 14:35:21 UTC-5, Daniel Gonzalez wrote: Hi, I have started to use the web2py wiki module, but can not find any support for internationalization of the wiki pages. What I would like is to be able to select the language based on some query parameters or some configuration parameters. Of course, the pages must be already be saved in the desired language. Is there any support for this built-in? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Strategies to select the preferred language
Hi, According to the documentationhttp://web2py.com/books/default/chapter/29/04#Internationalization,-and-Pluralization-with-T, the T operator works based on the Accept-Language setting. In my experience, this is quite cumbersome for a user to set-up (I have not even succeeded in setting this up in Chrome), so I would prefer to rely on offering the user a limited set of available languages for my web application, in the form of a menu, or maybe a profile setting. For users without profile (i.e. not logged in), I would like to persist this setting across requests. How could I do this? What are the strategies being used by others offering pages in multiple languages? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Strategies to select the preferred language
You are right. I guess I am having trouble myself because I *am* trying to
force the language (which is something a user will not do. since they are
happy with the default browser setting). And I have just found this piece
of code in admin:
{{if hasattr(T,'get_possible_languages_info'):}}
- {{=T('Admin language')}}/span
select name=adminlanguage onchange=var date = new
Date();cookieDate=date.setTime(date.getTime()+(100*24*60*60*1000));document.cookie='adminLanguage='+this.options[this.selectedIndex].id+';
expires='+cookieDate+'; path=/';window.location.reload()
{{for langinfo in sorted([(code,info[1]) for code,info
in T.get_possible_languages_info().iteritems() if code != 'default']):}}
option {{=T.accepted_language==langinfo[0] and
'selected' or ''}} {{='id='+langinfo[0]}} {{=langinfo[1]}}/option
{{pass}}
/select
{{else:}}
/span{{pass}}
And the model:
# set the language
if 'adminLanguage' in request.cookies and not (request.cookies[
'adminLanguage'] is None):
T.force(request.cookies['adminLanguage'].value)
Let me get this straight: a cookie adminLanguage is set with 100 days
expiration date. This cookie is then accessible via request. Sounds simple
enough, I guess I can reuse this. I do not get the select part, but I
guess is just boilerplate to create the options and force a reload of the
page when a selection is performed.
On Wednesday, May 29, 2013 9:06:56 AM UTC+2, Niphlod wrote:
? never had issues with users usually they download the browser with
the language they're in.
BTW, forcing a language using a session variable is not hard at all in
web2py.
Il giorno mercoledì 29 maggio 2013 09:00:05 UTC+2, Daniel Gonzalez ha
scritto:
Hi,
According to the
documentationhttp://web2py.com/books/default/chapter/29/04#Internationalization,-and-Pluralization-with-T,
the T operator works based on the Accept-Language setting. In my
experience, this is quite cumbersome for a user to set-up (I have not even
succeeded in setting this up in Chrome), so I would prefer to rely on
offering the user a limited set of available languages for my web
application, in the form of a menu, or maybe a profile setting.
For users without profile (i.e. not logged in), I would like to persist
this setting across requests. How could I do this?
What are the strategies being used by others offering pages in multiple
languages?
Thanks,
Daniel
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[web2py] Re: Strategies to select the preferred language
And a final question: since I will only be supporting a handful of languages (english, german and italian) I would like to set the current languages. I have found T.set_current_languages. Is this the right function to set the supported languages? Is there an example somewhere on how to use this function? I would go with something like: T.set_current_languages(['en', 'it', 'de']) in my model, but I am not sure that is the right way to use it. I have tried (in models/0.py): T.set_current_languages(['it', 'de', 'en']) But I get: type 'exceptions.IOError' [Errno 2] No such file or directory: /xxx/applications/example/languages/en-us.py' I also get that if I remove 'en': T.set_current_languages(['it', 'de']) -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Missing ASIDE tag in web2py gluon
The ASIDE http://www.w3schools.com/tags/tag_aside.asp helper (HTML5) is missing in gluon (using web2py 2.7.4). Useful to do something like this: http://purecss.io/layouts/gallery/ I have defined it in terms of DIV: class ASIDE(DIV): tag = 'aside' And works for me. I am not sure if gluon is supposed to implement all possible html tags, or if only a selected few are provided. -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Support for internationalization in web2py wiki
Hi, I have started to use the web2py wiki module, but can not find any support for internationalization of the wiki pages. What I would like is to be able to select the language based on some query parameters or some configuration parameters. Of course, the pages must be already be saved in the desired language. Is there any support for this built-in? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Create URL with embedded json object
Hi, In one of my views I am creating a table. During table creation time I have some dictionaries that I want to return as json objects. So in column data I want to provide a link to download this json objects. These objects are not stored anywhere (they are dinamically created), and are thus only known during the table instantiation time. Is it possible to do something like this: my_link = A(URL(data)) So that clicking the link will not perform an access to the web2py (no controller needs to be accessed, the data is already in the URL), but just show the json data? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Handling OPTIONS request in a web2py RESTful API
Hi, I have implemented a RESTful api in web2py which handle the usual GET, POST, PUT, DELETE. (using @request.restful()) Is there a standard mechanism in web2py to implement OPTIONS requests? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: track_changes bug or feature?
Thanks! I said it because restarting the server with every little change in a development environment, is a little weird. I'll change some imports to make them inside methods. 2013/4/6 Massimo Di Pierro massimo.dipie...@gmail.com This is intended. classone is importend once and it imports classtwo. This happens only once before http requests arrive. Python caches modules. track changes only affect import done explicitly at runtime (when http requests are processed). Changing this would require that web2py keep track of all dependencies (who import who). This would slow down everything. Massimo On Monday, 25 March 2013 09:55:19 UTC-5, demetrio wrote: Hi everyone, I have notice an strange behaviour of the track_changes feature (working on web2py 2.3.2 and python 2.7.3). Imagine the following structure: modules/ ├── classone.py ├── __init__.py └── mymodule ├── classtwo.py └── __init__.py (assuming that there is a models/0.py file with the track_changes(True) statement) In the file classone.py I have the following: #=**= #!/usr/bin/env python # coding: utf8 from gluon import * *from mymodule.classtwo import ClassTwo* class ClassOne(object): def say_something(self): classtwo = ClassTwo() return classtwo.say_something() #=**= And in classtwo.py this: #=**= #!/usr/bin/env python # coding: utf8 from gluon import * class ClassTwo(object): def say_something(self): return Hi! #=**= In this case, the changes inside ClassTwo are not tracked, but if I change class one to: #=**= #!/usr/bin/env python # coding: utf8 from gluon import * class ClassOne(object): def say_something(self): *from mymodule.classtwo import ClassTwo* classtwo = ClassTwo() return classtwo.say_something() #=**= Now it works correctly and all the changes are tracked, notice that now the import statement is inside of a method. In the first case, the custom_importer() function is only called at the first execution to import ClassTwo, but in the second case, custom_importer its called in all executions. I have made an example application with this issue attached to this mail. Is this intended or it is a bug? greetings, Daniel. -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Access data in PUT request for @request.restful()
Sorry to come back to this after two weeks (was busy with other stuff). I
am trying to access the post_vars, but they are emtpy (Storage {})
My PUT request body is coming from an emberjs client, and looks like this
(this is just test data):
{node:{type:voicemenu,name:sdfsfd,outputs:{jumpIfBusy:null,startnode:null,jumpIfNoAnswer:null,exten:null},properties:{record:null,multilocator:null,locator:null}}}
But this data is not in post_vars. I do not understand very well what you
mean by:
basically request.post_vars are the variables in body whether it is PUT or
POST or other.
I do not have variables in the body, I have json data. This should be
parsed as json. Should I do it manually, or is @request.restful() doing
that automatically? (I can not see it in the code).
Thanks,
Daniel
On Friday, March 22, 2013 6:02:32 AM UTC+1, Massimo Di Pierro wrote:
if request.env.request_method=='POST':
put_vars = request.post_vars
basically request.post_vars are the variables in body whether it is PUT
or POST or other.
On Thursday, 21 March 2013 19:10:27 UTC-5, Daniel Gonzalez wrote:
Hi,
How can I access the data in the PUT request? (in the body of the request)
Can this be automatically parsed (my data is JSON)
Thanks,
Daniel
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[web2py] Re: Access data in PUT request for @request.restful()
I see. So I assume I will have to parse the json myself.
I wonder if after @request.restful() has done its job, I can still access
the body.
I need to parse the json data, but maybe the body is already consumed ...
On Wednesday, April 3, 2013 9:24:47 AM UTC+2, Niphlod wrote:
the restful part parses the data as web2py does, so accepts form/* encoded
parameters... it doesn't parse json in the body.
On Wednesday, April 3, 2013 8:19:04 AM UTC+2, Daniel Gonzalez wrote:
Sorry to come back to this after two weeks (was busy with other stuff). I
am trying to access the post_vars, but they are emtpy (Storage {})
My PUT request body is coming from an emberjs client, and looks like this
(this is just test data):
{node:{type:voicemenu,name:sdfsfd,outputs:{jumpIfBusy:null,startnode:null,jumpIfNoAnswer:null,exten:null},properties:{record:null,multilocator:null,locator:null}}}
But this data is not in post_vars. I do not understand very well what you
mean by:
basically request.post_vars are the variables in body whether it is PUT
or POST or other.
I do not have variables in the body, I have json data. This should be
parsed as json. Should I do it manually, or is @request.restful() doing
that automatically? (I can not see it in the code).
Thanks,
Daniel
On Friday, March 22, 2013 6:02:32 AM UTC+1, Massimo Di Pierro wrote:
if request.env.request_method=='POST':
put_vars = request.post_vars
basically request.post_vars are the variables in body whether it is PUT
or POST or other.
On Thursday, 21 March 2013 19:10:27 UTC-5, Daniel Gonzalez wrote:
Hi,
How can I access the data in the PUT request? (in the body of the
request)
Can this be automatically parsed (my data is JSON)
Thanks,
Daniel
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[web2py] Re: Access data in PUT request for @request.restful()
Thanks Massimo, I realize now that those variables are also in **vars (request.restful interfacehttp://www.web2pyslices.com/slice/show/1533/restful-api-with-web2py ) I wonder how conflicts between query parameters and body parameters are resolved. BR, Daniel On Friday, March 22, 2013 6:02:32 AM UTC+1, Massimo Di Pierro wrote: if request.env.request_method=='POST': put_vars = request.post_vars basically request.post_vars are the variables in body whether it is PUT or POST or other. On Thursday, 21 March 2013 19:10:27 UTC-5, Daniel Gonzalez wrote: Hi, How can I access the data in the PUT request? (in the body of the request) Can this be automatically parsed (my data is JSON) Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Access data in PUT request for @request.restful()
Hi, How can I access the data in the PUT request? (in the body of the request) Can this be automatically parsed (my data is JSON) Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Call a function at the end of every request
Hi, For some tests that I am performing, I would like to call a function request_processed() (defined in a model, for example), at the end of every request. 1. Is this possible? How? 2. Is it possible to also call this function in case no controller was found to serve the request? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Call a function at the end of every request
And: 3. Is it possible to call this function also for jsonrpc requests? On Thursday, March 14, 2013 11:00:13 AM UTC+1, Daniel Gonzalez wrote: Hi, For some tests that I am performing, I would like to call a function request_processed() (defined in a model, for example), at the end of every request. 1. Is this possible? How? 2. Is it possible to also call this function in case no controller was found to serve the request? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Call a function at the end of every request
And (I am discovering some effects during testing): 4. Is it possible to call this function *after* the templates have been rendered? On Thursday, March 14, 2013 11:09:51 AM UTC+1, Daniel Gonzalez wrote: And: 3. Is it possible to call this function also for jsonrpc requests? On Thursday, March 14, 2013 11:00:13 AM UTC+1, Daniel Gonzalez wrote: Hi, For some tests that I am performing, I would like to call a function request_processed() (defined in a model, for example), at the end of every request. 1. Is this possible? How? 2. Is it possible to also call this function in case no controller was found to serve the request? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Call a function at the end of every request
Are you suggesting something like this (which is what I am currently doing): In my model I define a decorator: def finish_request(fn, *args, **kwargs): def wrapped(): res = fn(*args, **kwargs) do_whatever_after_the_request_has_been_processed() return res return wrapped And then in my controller: @finish_request @auth.requires_login() def index(): return Hello On Thursday, March 14, 2013 11:48:48 AM UTC+1, Niphlod wrote: let's dive it into I don't think there's an integrated way to do it, rather than decorating your function with something else. Please note that as far as I know (but I may be totally wrong) you can't actually return from a function (so it gets rendered and transferred to the client) and continue your computationi.e. if you have return 'abcd' to ship 'abcd' to the client, execution stops there. So, assuming that you are fine with, e.g. def func(): result = 'abcd' .some lengthy after callback return result I'd say it's definitely doable. If I remember correctly, there's only one handy shortcut available without starting toying with decorators response.custom_commit that can be a callable and gets called at the end of every request (before returning the results) PS: if the thing to do after callback is fine if executed asynchronously, you can set up a queue of things to do to be processed afterwards. PS2: to kick in after the rendering you must return the compiled template, e.g. result = response.render(...) ...some lengthy after callback return result On Thursday, March 14, 2013 11:35:20 AM UTC+1, Daniel Gonzalez wrote: And (I am discovering some effects during testing): 4. Is it possible to call this function *after* the templates have been rendered? On Thursday, March 14, 2013 11:09:51 AM UTC+1, Daniel Gonzalez wrote: And: 3. Is it possible to call this function also for jsonrpc requests? On Thursday, March 14, 2013 11:00:13 AM UTC+1, Daniel Gonzalez wrote: Hi, For some tests that I am performing, I would like to call a function request_processed() (defined in a model, for example), at the end of every request. 1. Is this possible? How? 2. Is it possible to also call this function in case no controller was found to serve the request? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Call a function at the end of every request
But this has two drawbacks: - the decorator must be added to every controller function - it gets executed before rendering the template. On Thursday, March 14, 2013 11:56:53 AM UTC+1, Daniel Gonzalez wrote: Are you suggesting something like this (which is what I am currently doing): In my model I define a decorator: def finish_request(fn, *args, **kwargs): def wrapped(): res = fn(*args, **kwargs) do_whatever_after_the_request_has_been_processed() return res return wrapped And then in my controller: @finish_request @auth.requires_login() def index(): return Hello On Thursday, March 14, 2013 11:48:48 AM UTC+1, Niphlod wrote: let's dive it into I don't think there's an integrated way to do it, rather than decorating your function with something else. Please note that as far as I know (but I may be totally wrong) you can't actually return from a function (so it gets rendered and transferred to the client) and continue your computationi.e. if you have return 'abcd' to ship 'abcd' to the client, execution stops there. So, assuming that you are fine with, e.g. def func(): result = 'abcd' .some lengthy after callback return result I'd say it's definitely doable. If I remember correctly, there's only one handy shortcut available without starting toying with decorators response.custom_commit that can be a callable and gets called at the end of every request (before returning the results) PS: if the thing to do after callback is fine if executed asynchronously, you can set up a queue of things to do to be processed afterwards. PS2: to kick in after the rendering you must return the compiled template, e.g. result = response.render(...) ...some lengthy after callback return result On Thursday, March 14, 2013 11:35:20 AM UTC+1, Daniel Gonzalez wrote: And (I am discovering some effects during testing): 4. Is it possible to call this function *after* the templates have been rendered? On Thursday, March 14, 2013 11:09:51 AM UTC+1, Daniel Gonzalez wrote: And: 3. Is it possible to call this function also for jsonrpc requests? On Thursday, March 14, 2013 11:00:13 AM UTC+1, Daniel Gonzalez wrote: Hi, For some tests that I am performing, I would like to call a function request_processed() (defined in a model, for example), at the end of every request. 1. Is this possible? How? 2. Is it possible to also call this function in case no controller was found to serve the request? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Call a function at the end of every request
Thanks Niphlod, I am making progress thanks to your suggestions. I have a strange effect: if I do def finish_request(xxx): # It receives None as parameter, I do not know why print yadayada response.custom_commit = finish_request My function gets called, at the end of the request, *twice* in rapid succession. Is this expected? Maybe a web2py bug? (using commit 10c67e5, from 4 days ago) On Thursday, March 14, 2013 12:17:36 PM UTC+1, Niphlod wrote: as said before, for 1 there's response.custom_commit and for 2 you must render the template inside your function. On Thursday, March 14, 2013 11:59:26 AM UTC+1, Daniel Gonzalez wrote: But this has two drawbacks: - the decorator must be added to every controller function - it gets executed before rendering the template. On Thursday, March 14, 2013 11:56:53 AM UTC+1, Daniel Gonzalez wrote: Are you suggesting something like this (which is what I am currently doing): In my model I define a decorator: def finish_request(fn, *args, **kwargs): def wrapped(): res = fn(*args, **kwargs) do_whatever_after_the_request_has_been_processed() return res return wrapped And then in my controller: @finish_request @auth.requires_login() def index(): return Hello On Thursday, March 14, 2013 11:48:48 AM UTC+1, Niphlod wrote: let's dive it into I don't think there's an integrated way to do it, rather than decorating your function with something else. Please note that as far as I know (but I may be totally wrong) you can't actually return from a function (so it gets rendered and transferred to the client) and continue your computationi.e. if you have return 'abcd' to ship 'abcd' to the client, execution stops there. So, assuming that you are fine with, e.g. def func(): result = 'abcd' .some lengthy after callback return result I'd say it's definitely doable. If I remember correctly, there's only one handy shortcut available without starting toying with decorators response.custom_commit that can be a callable and gets called at the end of every request (before returning the results) PS: if the thing to do after callback is fine if executed asynchronously, you can set up a queue of things to do to be processed afterwards. PS2: to kick in after the rendering you must return the compiled template, e.g. result = response.render(...) ...some lengthy after callback return result On Thursday, March 14, 2013 11:35:20 AM UTC+1, Daniel Gonzalez wrote: And (I am discovering some effects during testing): 4. Is it possible to call this function *after* the templates have been rendered? On Thursday, March 14, 2013 11:09:51 AM UTC+1, Daniel Gonzalez wrote: And: 3. Is it possible to call this function also for jsonrpc requests? On Thursday, March 14, 2013 11:00:13 AM UTC+1, Daniel Gonzalez wrote: Hi, For some tests that I am performing, I would like to call a function request_processed() (defined in a model, for example), at the end of every request. 1. Is this possible? How? 2. Is it possible to also call this function in case no controller was found to serve the request? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Call a function at the end of every request
(Strange, your reply arrives per email but is not visible in the google groups thread. I quote) it **should** not happen if you see the code. https://github.com/web2py/web2py/blob/master/gluon/main.py#L566 https://github.com/web2py/web2py/blob/master/gluon/dal.py#L555 are you sure that the double execution is not some generated by a decorator lying around in your code ? Yes, I have verified the web2py code and it should not happen, that is why I am surprised. And no, I have no old code lying around (that I can see ...). It really gets called twice by web2py. I'll have to investigate further. -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Slow DAL initialization
This codes in the model takes between 5ms and 24ms to complete: WEB2PY_DAL_STORAGE=postgres://myuser:mypass@localhost:5432/mydb db = DAL(WEB2PY_DAL_STORAGE, migrate_enabled=False, lazy_tables=True) I am in a laptop with: - 2 cores, 3300 bogomips/core - 4 GB - linux 2.6.32-5-686 Is this expected? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Call a function at the end of every request
Thanks Jonathan, that makes sense. On Thursday, March 14, 2013 1:54:35 PM UTC+1, Jonathan Lundell wrote: On 14 Mar 2013, at 4:45 AM, Daniel Gonzalez gonv...@gmail.comjavascript: wrote: Thanks Niphlod, I am making progress thanks to your suggestions. I have a strange effect: if I do def finish_request(xxx): # It receives None as parameter, I do not know why print yadayada response.custom_commit = finish_request My function gets called, at the end of the request, *twice* in rapid succession. Is this expected? Maybe a web2py bug? (using commit 10c67e5, from 4 days ago) It's normal, IIRC. It's called with different arguments, once for each db thread and once with None. When I use it (to do some cache flushing after the db commits), my function looks like this: def oncommit(_db): custom_commit callback: commit, then flush the cache if _db is None: # after all commits flush_active_channels() else: _db.commit()# not called for Google Datastore -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Slow DAL initialization
Great, thanks Niphlod! Now the setup times have been reduced to the 3ms (with some cases of 3ms, and even less over 10ms). I would say, discarding the initial pool setup, the average is around 4 ms, with some spikes around 10ms (these are not accurate stats) Anyway, looks like an improvement. On Thursday, March 14, 2013 2:13:51 PM UTC+1, Niphlod wrote: pool ? On Thursday, March 14, 2013 1:16:25 PM UTC+1, Daniel Gonzalez wrote: This codes in the model takes between 5ms and 24ms to complete: WEB2PY_DAL_STORAGE=postgres://myuser:mypass@localhost:5432/mydb db = DAL(WEB2PY_DAL_STORAGE, migrate_enabled=False, lazy_tables=True) I am in a laptop with: - 2 cores, 3300 bogomips/core - 4 GB - linux 2.6.32-5-686 Is this expected? Thanks, Daniel -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Strange problem importing a module
Moving to 2.4.2 did not solve the issue. What did solve it was a
reorganizing of my libraries: previously I was importing libraries from a
top-level directory, and now I have put all my libraries inside a new
namespace, so that instead of doing:
from my_module import my_function
Now I am doing:
from top_namespace.my_module import my_funcion
And the issues are gone. I suspect one of my libraries was conflicting with
one the modules provided by web2py, but have no prove of that.
On Wednesday, March 6, 2013 7:53:26 PM UTC+1, Daniel Gonzalez wrote:
Currently running Version 2.4.1-alpha.2+timestamp.2013.01.13.13.14.47
And I remember that I had a similar issue, which was indeed related to the
custom importer:
https://groups.google.com/d/topic/web2py/IzhnixOivic/discussion
It seems I am run into a similar problem again. If I find any information
I'll post it. Otherwise I'll move to 2.4.2 and see if that solves the
problems.
On Wednesday, March 6, 2013 7:41:23 PM UTC+1, Massimo Di Pierro wrote:
Which web2py version? Some changes were made to 2.4.2 to the custom
importer.
On Wednesday, 6 March 2013 12:19:32 UTC-6, Daniel Gonzalez wrote:
Hi,
I have this very strange issue: I am importing a module in the web2py
models, but the module can not be found.
This is only happening in one of my production hosts: the rest are ok
(very similar machines, similar setup).
If I import the module from a python shell, it works, but importing from
the web2py shell fails.
I have verified that os.environ.get('PYTHONPATH') are exactly the same
in both web2py shell and normal python shell.
sys.path differ slightly: basically, in web2py shell it has the web2py
installation directory, and in the normal python shell it has the current
directory.
But this should not affect finding the module I want to import. So, I do
not understand why this one module is not being found.
I have experienced in the past that web2py complains about a module not
found, when actually what happens is that importing that module causes an
error (for whatever reason: because an import there does not work, or
syntax error, or whatever). But I can not tell in this specific case if
that is my problem. How can I further debug this annoying issue?
Thanks,
Daniel
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[web2py] Strange problem importing a module
Hi,
I have this very strange issue: I am importing a module in the web2py
models, but the module can not be found.
This is only happening in one of my production hosts: the rest are ok (very
similar machines, similar setup).
If I import the module from a python shell, it works, but importing from
the web2py shell fails.
I have verified that os.environ.get('PYTHONPATH') are exactly the same in
both web2py shell and normal python shell.
sys.path differ slightly: basically, in web2py shell it has the web2py
installation directory, and in the normal python shell it has the current
directory.
But this should not affect finding the module I want to import. So, I do
not understand why this one module is not being found.
I have experienced in the past that web2py complains about a module not
found, when actually what happens is that importing that module causes an
error (for whatever reason: because an import there does not work, or
syntax error, or whatever). But I can not tell in this specific case if
that is my problem. How can I further debug this annoying issue?
Thanks,
Daniel
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[web2py] Re: Strange problem importing a module
Currently running Version 2.4.1-alpha.2+timestamp.2013.01.13.13.14.47
And I remember that I had a similar issue, which was indeed related to the
custom importer:
https://groups.google.com/d/topic/web2py/IzhnixOivic/discussion
It seems I am run into a similar problem again. If I find any information
I'll post it. Otherwise I'll move to 2.4.2 and see if that solves the
problems.
On Wednesday, March 6, 2013 7:41:23 PM UTC+1, Massimo Di Pierro wrote:
Which web2py version? Some changes were made to 2.4.2 to the custom
importer.
On Wednesday, 6 March 2013 12:19:32 UTC-6, Daniel Gonzalez wrote:
Hi,
I have this very strange issue: I am importing a module in the web2py
models, but the module can not be found.
This is only happening in one of my production hosts: the rest are ok
(very similar machines, similar setup).
If I import the module from a python shell, it works, but importing from
the web2py shell fails.
I have verified that os.environ.get('PYTHONPATH') are exactly the same in
both web2py shell and normal python shell.
sys.path differ slightly: basically, in web2py shell it has the web2py
installation directory, and in the normal python shell it has the current
directory.
But this should not affect finding the module I want to import. So, I do
not understand why this one module is not being found.
I have experienced in the past that web2py complains about a module not
found, when actually what happens is that importing that module causes an
error (for whatever reason: because an import there does not work, or
syntax error, or whatever). But I can not tell in this specific case if
that is my problem. How can I further debug this annoying issue?
Thanks,
Daniel
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[web2py] Querying the DAL by regex
Hi, I have this function to delete a user with a certain email address: def delete_user(self, email): my_query = self.db[self.web2py_user_table].email == email my_set = self.db(my_query) my_set.delete() Now I would like to implement a function to delete several users at once, based on a regex parameter: def delete_users(self, regex): my_query = define query using regex my_set = self.db(my_query) my_set.delete() Is it possible to do this? Thanks, Daniel --
[web2py] Specify my own controller for @auth.requires_login()
Hi, Whenever my login expires, web2py redirects to application/default/user/login?_next=next_url. Since I have a customized login controller, I would like to redirect to it whenever the login expires. Is it possible to configure @auth.requires_login() to point to my own controller? Thanks, Daniel --
[web2py] Re: Possible bug? session.auth is None in some requests
I was having a problem with session.auth.user, and my investigation has
narrowed down the problem to web2py code. Instrumenting the code has
allowed me to see the problem directly in the logs, but the problem is
there no matter whether I modify Auth code or not.
Sure, for me Sessions and session.auth work well ... except when I am doing
stress testing. With 10 parallel clients, I start to have problems. Strange
problems as you see in the logs: around 30% of the requests overall do not
have a properly initialized auth. Some clients have nearly no problems,
other clients have lots of problems.
My question is: is nobody else seeing this? Not even when running several
clients in parallel? I am fairly confident on my client code ...
I am running:
Version 2.4.1-alpha.2+timestamp.2013.01.13.13.14.47
commit 4bbe6ed, 4 days ago, minor fix in parse_as_rest
On Thursday, January 17, 2013 4:56:00 AM UTC+1, Massimo Di Pierro wrote:
You are modifying Auth code. What problem are you trying to solve?
Sessions and session.auth work well with both stable and trunk version, do
they not?
On Wednesday, 16 January 2013 21:19:01 UTC-6, Daniel Gonzalez wrote:
Hi,
I am doing stress testing of my web2py application. The way I am doing
this is:
- 10 parallel clients
- the clients log-in automatically, and obtain the session cookie
- the clients log-in only *once* at the start of testing.
- I use the session cookie to tag log messages in order to look for
mý problem: this way I can relate the log messages to a specific client.
- I am looking for problems in the web2py code, specifically in
tools.py, Auth.__init__, where the auth.user is defined
This is my instrumented code (in tools.py, Auth.__init__):
if auth is None:
tools_tracer.show('session.auth is None')
if auth and auth.last_visit and auth.last_visit + \
datetime.timedelta(days=0, seconds=auth.expiration) request
.now:
tools_tracer.show('session.auth active, last_visit=%s', auth.
last_visit)
self.user = auth.user
# this is a trick to speed up sessions
if (request.now - auth.last_visit).seconds (auth.expiration
/ 10):
auth.last_visit = request.now
else:
self.user = None
if session.auth:
del session.auth
tools_tracer.show('session.auth expired')
And (in tools.py, Auth.login_user):
current.session.auth = Storage(
user = user,
last_visit=current.request.now,
expiration=self.settings.expiration,
hmac_key=web2py_uuid())
tools_tracer.show('session.auth created')
This is my current log:
2013-01-17 04:00:41,816 - Thread-5 - c2d769 session.auth
is None
2013-01-17 04:00:41,861 - Thread-5 - c2d769 session.auth
created
2013-01-17 04:00:41,984 - Thread-6 - c2d769 session.auth
active, last_visit=2013-01-17 04:00:41.791030
2013-01-17 04:00:48,923 - Thread-7 - c2d769 session.auth
is None
2013-01-17 04:01:51,131 - Thread-10 - c2d769 session.auth
is None
2013-01-17 04:01:51,214 - Thread-9 - c2d769 session.auth
is None
2013-01-17 04:02:42,506 - Thread-6 - c2d769 session.auth
is None
2013-01-17 04:04:42,791 - Thread-9 - c2d769 session.auth
active, last_visit=2013-01-17 04:04:07.717197
2013-01-17 04:04:42,816 - Thread-4 - c2d769 session.auth
is None
2013-01-17 04:04:48,862 - Thread-10 - c2d769 session.auth
is None
2013-01-17 04:04:49,251 - Thread-6 - c2d769 session.auth
is None
2013-01-17 04:05:35,713 - Thread-7 - c2d769 session.auth
is None
2013-01-17 04:06:39,764 - Thread-8 - c2d769 session.auth
active, last_visit=2013-01-17 04:06:10.853567
2013-01-17 04:06:39,803 - Thread-2 - c2d769 session.auth
is None
2013-01-17 04:07:35,154 - Thread-8 - c2d769 session.auth
active, last_visit=2013-01-17 04:07:00.261709
2013-01-17 04:07:40,860 - Thread-9 - c2d769 session.auth
is None
2013-01-17 04:07:46,176 - Thread-8 - c2d769 session.auth
is None
2013-01-17 04:07:46,266 - Thread-5 - c2d769 session.auth
is None
2013-01-17 04:08:27,416 - Thread-9 - c2d769 session.auth
active, last_visit=2013-01-17 04:08:03.492030
2013-01-17 04:08:27,436 - Thread-2 - c2d769 session.auth
is None
2013-01-17 04:09:31,485 - Thread-10 - c2d769 session.auth
is None
2013-01-17 04:11:21,903 - Thread-7 - c2d769 session.auth
is None
2013-01-17 04:12:20,207 - Thread-10 - c2d769 session.auth
is None
(the c2d769 is a hash of the cookie, and identifies the client)
As you
[web2py] Re: Possible bug? session.auth is None in some requests
Yes Anthony, pretty sure. The little hash that you see in the logs *is* the
cookie. Otherwise I can not grep for the relevant log messages (lots of
activity going on with 10 parallel requests). This is the code that I have
at the very top of my db.py:
try:
cookie_value = request.cookies[response.session_id_name].value
except:
cookie_value = None
from gluon.tools import tools_tracer
tools_tracer.setid(cookie_value)
(tools_tracer is part of my instrumentation) And that setid call with
compute a cookie hash for my logs.
On Thursday, January 17, 2013 5:32:22 AM UTC+1, Anthony wrote:
You're sure the client is sending the session cookie each time?
On Wednesday, January 16, 2013 10:19:01 PM UTC-5, Daniel Gonzalez wrote:
Hi,
I am doing stress testing of my web2py application. The way I am doing
this is:
- 10 parallel clients
- the clients log-in automatically, and obtain the session cookie
- the clients log-in only *once* at the start of testing.
- I use the session cookie to tag log messages in order to look for
mý problem: this way I can relate the log messages to a specific client.
- I am looking for problems in the web2py code, specifically in
tools.py, Auth.__init__, where the auth.user is defined
This is my instrumented code (in tools.py, Auth.__init__):
if auth is None:
tools_tracer.show('session.auth is None')
if auth and auth.last_visit and auth.last_visit + \
datetime.timedelta(days=0, seconds=auth.expiration) request
.now:
tools_tracer.show('session.auth active, last_visit=%s', auth.
last_visit)
self.user = auth.user
# this is a trick to speed up sessions
if (request.now - auth.last_visit).seconds (auth.expiration
/ 10):
auth.last_visit = request.now
else:
self.user = None
if session.auth:
del session.auth
tools_tracer.show('session.auth expired')
And (in tools.py, Auth.login_user):
current.session.auth = Storage(
user = user,
last_visit=current.request.now,
expiration=self.settings.expiration,
hmac_key=web2py_uuid())
tools_tracer.show('session.auth created')
This is my current log:
2013-01-17 04:00:41,816 - Thread-5 - c2d769 session.auth
is None
2013-01-17 04:00:41,861 - Thread-5 - c2d769 session.auth
created
2013-01-17 04:00:41,984 - Thread-6 - c2d769 session.auth
active, last_visit=2013-01-17 04:00:41.791030
2013-01-17 04:00:48,923 - Thread-7 - c2d769 session.auth
is None
2013-01-17 04:01:51,131 - Thread-10 - c2d769 session.auth
is None
2013-01-17 04:01:51,214 - Thread-9 - c2d769 session.auth
is None
2013-01-17 04:02:42,506 - Thread-6 - c2d769 session.auth
is None
2013-01-17 04:04:42,791 - Thread-9 - c2d769 session.auth
active, last_visit=2013-01-17 04:04:07.717197
2013-01-17 04:04:42,816 - Thread-4 - c2d769 session.auth
is None
2013-01-17 04:04:48,862 - Thread-10 - c2d769 session.auth
is None
2013-01-17 04:04:49,251 - Thread-6 - c2d769 session.auth
is None
2013-01-17 04:05:35,713 - Thread-7 - c2d769 session.auth
is None
2013-01-17 04:06:39,764 - Thread-8 - c2d769 session.auth
active, last_visit=2013-01-17 04:06:10.853567
2013-01-17 04:06:39,803 - Thread-2 - c2d769 session.auth
is None
2013-01-17 04:07:35,154 - Thread-8 - c2d769 session.auth
active, last_visit=2013-01-17 04:07:00.261709
2013-01-17 04:07:40,860 - Thread-9 - c2d769 session.auth
is None
2013-01-17 04:07:46,176 - Thread-8 - c2d769 session.auth
is None
2013-01-17 04:07:46,266 - Thread-5 - c2d769 session.auth
is None
2013-01-17 04:08:27,416 - Thread-9 - c2d769 session.auth
active, last_visit=2013-01-17 04:08:03.492030
2013-01-17 04:08:27,436 - Thread-2 - c2d769 session.auth
is None
2013-01-17 04:09:31,485 - Thread-10 - c2d769 session.auth
is None
2013-01-17 04:11:21,903 - Thread-7 - c2d769 session.auth
is None
2013-01-17 04:12:20,207 - Thread-10 - c2d769 session.auth
is None
(the c2d769 is a hash of the cookie, and identifies the client)
As you can see, very often (for this specific client, other clients have
fewer problems), the session.auth is not there. But then suddenly, in the
following request, it is there again.
What can be causing this strange problem?
Thanks,
Daniel
--
[web2py] Re: Why does the login expire when doing periodic jsonrpc requests?
Here: http://code.google.com/p/web2py/issues/detail?id=1287 On Thursday, January 17, 2013 4:50:08 AM UTC+1, Massimo Di Pierro wrote: Please open a ticket about this... :-) On Wednesday, 16 January 2013 17:28:59 UTC-6, Daniel Gonzalez wrote: This is the relevant section in Auth.__init__ for the login expiration: if auth and auth.last_visit and auth.last_visit + \ datetime.timedelta(days=0, seconds=auth.expiration) request .now: self.user = auth.user # this is a trick to speed up sessions if (request.now - auth.last_visit).seconds (auth.expiration / 10): auth.last_visit = request.now else: self.user = None if session.auth: del session.auth I have verified that jsonrpc requests will update the last_visit. BUT the login will expire anyway (after expiration, since the original login), which I can not understand from the code above. This does not happen when doing normal accesses: doing periodic requests will keep an active login forever, which is expected I think. Am I missing something here? Thanks, Daniel --
[web2py] Re: Problems with auth.login_bare when using postgres
M, not really: I still need to create the database. Maybe web2py can do
that for me if I start with a blank postgres database, but I am not
familiar with that, so this was an easier path for me.
By the way, I found out another problem: we need serial PRIMARY KEY, so
the sed script must be changed to include:
s/INTEGER PRIMARY KEY AUTOINCREMENT/serial PRIMARY KEY/
And the postgres sequences must be initialized after import:
select setval(pg_get_serial_sequence('auth_user' , 'id'), (select max(
id) from auth_user) );
select setval(pg_get_serial_sequence('fulluser', 'id'), (select max(
id) from fulluser) );
select setval(pg_get_serial_sequence('auth_group' , 'id'), (select max(
id) from auth_group) );
select setval(pg_get_serial_sequence('auth_membership' , 'id'), (select max(
id) from auth_membership) );
select setval(pg_get_serial_sequence('auth_permission' , 'id'), (select max(
id) from auth_permission) );
select setval(pg_get_serial_sequence('auth_event' , 'id'), (select max(
id) from auth_event) );
select setval(pg_get_serial_sequence('auth_cas', 'id'), (select max(
id) from auth_cas) );
On Thursday, January 17, 2013 8:52:03 PM UTC+1, Niphlod wrote:
yep, probably exporting all to csv and reimporting would have you saved a
bit of hassle.
On Wednesday, January 16, 2013 5:43:09 PM UTC+1, Daniel Gonzalez wrote:
I found the problem: CHAR fields in postgres (the default that the .dump
command in sqlite is generating) will be extended with spaces to fill the
available length in postgres, so that username/password do not match
anymore.
I have modified my import script like this:
import_from_sqlite_ ( ) {
# Set the following:
# WEB2PY_PG_DB : the name of the database in postgres to import to
# SQLITE_FILE: the location of the sqlite file
# PG_USER : the postgres user
# PG_PWD : the potgres password
#
sql_dump=/tmp/from_sqlite.sql
# Dump the data:
# - PRAGMA and AUTOINCREMENT are not supported in postgres
# - sqlite_sequence is specific to sqlite
# - CHAR will have fixed size in postgres, so it will be filled
with empty spaces. Use VARCHAR instead.
sqlite3 $SQLITE_FILE .dump | sed -e
'/^PRAGMA/d;/sqlite_sequence/d;s/AUTOINCREMENT//;s/
CHAR/ VARCHAR/' $sql_dump
# Drop / recreate database
sudo -u postgres dropdb $WEB2PY_PG_DB
sudo -u postgres createdb -O $PG_USER -E UTF8 $WEB2PY_PG_DB
# Import the data
sudo -u postgres PGPASSWORD=$PG_PWD psql -h localhost -U $PG_USER -d
$WEB2PY_PG_DB $sql_dump
# Show some data, to see if the import worked fine
sudo -u postgres psql -l
echo \dt | sudo -u postgres psql -d $WEB2PY_PG_DB
echo select * from auth_user; | sudo -u postgres psql -d
$WEB2PY_PG_DB
rm -f $sql_dump
}
Be careful with this, since it will drop and recreate the database. Also,
the changes to the sqlite dump are very specific to my situation. YMMV.
On Wednesday, January 16, 2013 4:06:23 PM UTC+1, Daniel Gonzalez wrote:
Hi,
The following code was working when using SQLite, and now that I have
moved to postgres it is failing:
auth.login_bare(request.vars.email, request.vars.password)
I have the passwords for the time being in plaintext, both in postgres
and SQLite. I have imported the data to postgres like this:
# PRAGMA and AUTOINCREMENT are not supported in postgres
# sqlite_sequence is specific to sqlite
sqlite3 storage.sqlite .dump | sed -e
'/^PRAGMA/d;/sqlite_sequence/d;s/AUTOINCREMENT//' /tmp/from_sqlite.sql
sudo -u postgres PGPASSWORD=mypass psql -h localhost -U myuser -d
web2py_wavportal /tmp/from_sqlite.sql
I have verified that the data in postgres looks fine:
web2py_wavportal=# \dt
List of relations
Schema | Name | Type | Owner
+-+---+---
public | auth_cas| table | wavportal
public | auth_event | table | wavportal
public | auth_group | table | wavportal
public | auth_membership | table | wavportal
public | auth_permission | table | wavportal
public | auth_user | table | wavportal
public | fulluser| table | wavportal
(7 rows)
The credentials in auth_user are as expected, but auth.login_bare is
failing. Why could that be?
Thanks,
Daniel
--
[web2py] Re: Triggering imports during web2py startup
That is true ... per-process. If my apache server has several processes, I must make sure that all processes are triggered. This is difficult to guarantee. On Thursday, January 17, 2013 8:50:53 PM UTC+1, Niphlod wrote: I'm not very well versed in all the intricacies, but if the layer calls os.fork() (if you're on linux, that's probably what the underlying server does) your import will happen only on the first request. All the subsequent should not import anything because they will acquire the current status of the process when they are forked. There are some options in most of the layers (being apache, uwsgi, and so on) to tell the interpreter to completely restart the process after a while, but if you have those issues you'll be better off never forcing a restart of the interpreter. On Wednesday, January 16, 2013 5:47:18 PM UTC+1, Daniel Gonzalez wrote: That would work, and is what I am planning to do, but: how can I guarantee that all processes (threads?) have been targetted?. I guess this is not possible, unless I start at least N parallel requests, N being the number of processes ... On Wednesday, January 16, 2013 5:37:24 PM UTC+1, Niphlod wrote: do an outside request as soon as you reload apache with curl ? Il giorno mercoledì 16 gennaio 2013 12:06:14 UTC+1, Daniel Gonzalez ha scritto: Hi, In my models I am importing third party libraries. Importing those libraries takes time (3s) which means the first requests (one per process) take long time to be served. Do you have any suggestion on how to trigger the importing before the first requests arrive? I am running web2py via apache / mod_wsgi. Thanks, Daniel --
[web2py] Triggering imports during web2py startup
Hi, In my models I am importing third party libraries. Importing those libraries takes time (3s) which means the first requests (one per process) take long time to be served. Do you have any suggestion on how to trigger the importing before the first requests arrive? I am running web2py via apache / mod_wsgi. Thanks, Daniel --
[web2py] Problems with auth.login_bare when using postgres
Hi, The following code was working when using SQLite, and now that I have moved to postgres it is failing: auth.login_bare(request.vars.email, request.vars.password) I have the passwords for the time being in plaintext, both in postgres and SQLite. I have imported the data to postgres like this: # PRAGMA and AUTOINCREMENT are not supported in postgres # sqlite_sequence is specific to sqlite sqlite3 storage.sqlite .dump | sed -e '/^PRAGMA/d;/sqlite_sequence/d;s/AUTOINCREMENT//' /tmp/from_sqlite.sql sudo -u postgres PGPASSWORD=mypass psql -h localhost -U myuser -d web2py_wavportal /tmp/from_sqlite.sql I have verified that the data in postgres looks fine: web2py_wavportal=# \dt List of relations Schema | Name | Type | Owner +-+---+--- public | auth_cas| table | wavportal public | auth_event | table | wavportal public | auth_group | table | wavportal public | auth_membership | table | wavportal public | auth_permission | table | wavportal public | auth_user | table | wavportal public | fulluser| table | wavportal (7 rows) The credentials in auth_user are as expected, but auth.login_bare is failing. Why could that be? Thanks, Daniel --
[web2py] Re: Problems with auth.login_bare when using postgres
I found the problem: CHAR fields in postgres (the default that the .dump
command in sqlite is generating) will be extended with spaces to fill the
available length in postgres, so that username/password do not match
anymore.
I have modified my import script like this:
import_from_sqlite_ ( ) {
# Set the following:
# WEB2PY_PG_DB : the name of the database in postgres to import to
# SQLITE_FILE: the location of the sqlite file
# PG_USER : the postgres user
# PG_PWD : the potgres password
#
sql_dump=/tmp/from_sqlite.sql
# Dump the data:
# - PRAGMA and AUTOINCREMENT are not supported in postgres
# - sqlite_sequence is specific to sqlite
# - CHAR will have fixed size in postgres, so it will be filled with
empty spaces. Use VARCHAR instead.
sqlite3 $SQLITE_FILE .dump | sed -e
'/^PRAGMA/d;/sqlite_sequence/d;s/AUTOINCREMENT//;s/
CHAR/ VARCHAR/' $sql_dump
# Drop / recreate database
sudo -u postgres dropdb $WEB2PY_PG_DB
sudo -u postgres createdb -O $PG_USER -E UTF8 $WEB2PY_PG_DB
# Import the data
sudo -u postgres PGPASSWORD=$PG_PWD psql -h localhost -U $PG_USER -d
$WEB2PY_PG_DB $sql_dump
# Show some data, to see if the import worked fine
sudo -u postgres psql -l
echo \dt | sudo -u postgres psql -d $WEB2PY_PG_DB
echo select * from auth_user; | sudo -u postgres psql -d $WEB2PY_PG_DB
rm -f $sql_dump
}
Be careful with this, since it will drop and recreate the database. Also,
the changes to the sqlite dump are very specific to my situation. YMMV.
On Wednesday, January 16, 2013 4:06:23 PM UTC+1, Daniel Gonzalez wrote:
Hi,
The following code was working when using SQLite, and now that I have
moved to postgres it is failing:
auth.login_bare(request.vars.email, request.vars.password)
I have the passwords for the time being in plaintext, both in postgres and
SQLite. I have imported the data to postgres like this:
# PRAGMA and AUTOINCREMENT are not supported in postgres
# sqlite_sequence is specific to sqlite
sqlite3 storage.sqlite .dump | sed -e
'/^PRAGMA/d;/sqlite_sequence/d;s/AUTOINCREMENT//' /tmp/from_sqlite.sql
sudo -u postgres PGPASSWORD=mypass psql -h localhost -U myuser -d
web2py_wavportal /tmp/from_sqlite.sql
I have verified that the data in postgres looks fine:
web2py_wavportal=# \dt
List of relations
Schema | Name | Type | Owner
+-+---+---
public | auth_cas| table | wavportal
public | auth_event | table | wavportal
public | auth_group | table | wavportal
public | auth_membership | table | wavportal
public | auth_permission | table | wavportal
public | auth_user | table | wavportal
public | fulluser| table | wavportal
(7 rows)
The credentials in auth_user are as expected, but auth.login_bare is
failing. Why could that be?
Thanks,
Daniel
--
[web2py] Re: Triggering imports during web2py startup
That would work, and is what I am planning to do, but: how can I guarantee that all processes (threads?) have been targetted?. I guess this is not possible, unless I start at least N parallel requests, N being the number of processes ... On Wednesday, January 16, 2013 5:37:24 PM UTC+1, Niphlod wrote: do an outside request as soon as you reload apache with curl ? Il giorno mercoledì 16 gennaio 2013 12:06:14 UTC+1, Daniel Gonzalez ha scritto: Hi, In my models I am importing third party libraries. Importing those libraries takes time (3s) which means the first requests (one per process) take long time to be served. Do you have any suggestion on how to trigger the importing before the first requests arrive? I am running web2py via apache / mod_wsgi. Thanks, Daniel --
[web2py] Re: What is the timeout for the session?
I see. You are differentiating between login and session, and I guess I understand the distinction. I have verified the service.jsonrpc calls, and they indeed update last_visit. The open issue is still expiration of the data in memcache, in combination with the auth.settings.expiration. I think this is not well integrated: if the memcache data expires, that's it. No matter how big auth.settings.expiration is, expiration of the data in memcache will force the login to expire. On Tuesday, January 15, 2013 3:08:38 PM UTC+1, Anthony wrote: First, note that sessions do not expire -- web2py will keep the session as long as the client keeps returning the session cookie, so it's up to the client when to terminate the session (typically when the browser is closed). auth.settings.expiration does not determine when the session expires but when the login expires (i.e., after a period of inactivity, the user will have to log in again). Note, in order to avoid excessive session writing, session.auth.last_visit does not actually get updated on every single request -- it only gets updated if the time between the last visit and the current request exceeds 10% of the auth.settings.expiration time (so, about every 6 minutes with a one hour expiration). As for the @service.jsonrpc requests, are those requests accessing an action that requires authentication, and if so, are you authenticating via a session cookie? If not, then those calls would not affect the session or the Auth login expiration. Anthony On Tuesday, January 15, 2013 8:27:04 AM UTC-5, Daniel Gonzalez wrote: FYI: Regarding my last two questions: the expiration is set in auth.settings, but since I was using the session in memcache and the default_time_expire in memche is 300 seconds, what I think is happening is that the session in memcache is expiring, even though the session in auth.settings is not. That means no data can be recovered from memcache for the session, and thus the session expires. I see several problems here: - the memcache session does not get updated, even though I am doing accesses (in this case @service.jsonrpc accesses). I mean, this key should be refreshed in memcache since I am accessing it (its ttl must be reset). Just reading the session is not enough: it must be updated too, otherwise it will expire! - auth.settings.expiration is not useful if the memcache time_expire is smaller - session.auth.last_visit does not get updated in @service.jsonrpc accesses Or maybe I am misunderstanding the expiration concept: it could be that only login actions are supposed to refresh the session. But this looks a bit strange to me: as long as the client is sending requests, the session should remain active! Whenever an *inactivity* (meaning, no requests at all) period longer than auth.settings.expiration has passed, the session should expire. Is this how things should work with the current implementation? On Tuesday, January 15, 2013 1:26:48 PM UTC+1, Daniel Gonzalez wrote: And even worse: I am setting, for testing: auth.settings.expiration = 3600 * 24 * 30 # one month But the session is expiring after 5 minutes anyway! What is happening here? On Tuesday, January 15, 2013 12:14:59 PM UTC+1, Daniel Gonzalez wrote: And a related question: my session is expiring after 5 minutes (300s). I am not setting the expiration time, and the default in Auth.default_settings.expiration is 3600. Where is the 300 coming from!?!? On Tuesday, January 15, 2013 11:57:03 AM UTC+1, Daniel Gonzalez wrote: Thanks Niphlod, I am now using: - session.auth.expiration - session.auth.last_visit And I have realized about one (at least for me) unexpected thing: accessing @service.jsonrpc controllers does not reset session.auth.last_visit. Is this intended? On Tuesday, January 15, 2013 11:43:11 AM UTC+1, Niphlod wrote: session expiration is managed by auth.settings.expiration ... --
[web2py] Re: What is the timeout for the session?
Added: http://code.google.com/p/web2py/issues/detail?id=1285 On Wednesday, January 16, 2013 9:24:19 PM UTC+1, Anthony wrote: The open issue is still expiration of the data in memcache, in combination with the auth.settings.expiration. I think this is not well integrated: if the memcache data expires, that's it. No matter how big auth.settings.expiration is, expiration of the data in memcache will force the login to expire. I'm not really familiar with that implementation. Maybe open an issuehttp://code.google.com/p/web2py/issues/listabout it. Anthony --
[web2py] Re: Moving away from the default controller
Have you modified the routes.py file? On Wednesday, January 16, 2013 11:39:55 PM UTC+1, GeeksRule wrote: I think I'm doing something silly. For the first time now I'm moving away from the default controller. I've created a new controller called fromuser.py, there is a single function in it : def submitAStory(): which returns a form. When I hit : http://site.com/myapp/fromuser/submitAStory It gives me an error : invalid function (default/fromuser) I think it is still trying to go into the default controller. Note : I have created a view called* fromuser/submitAStory.html* * * Any pointers ?* * --
[web2py] Why does the login expire when doing periodic jsonrpc requests?
This is the relevant section in Auth.__init__ for the login expiration: if auth and auth.last_visit and auth.last_visit + \ datetime.timedelta(days=0, seconds=auth.expiration) request .now: self.user = auth.user # this is a trick to speed up sessions if (request.now - auth.last_visit).seconds (auth.expiration / 10): auth.last_visit = request.now else: self.user = None if session.auth: del session.auth I have verified that jsonrpc requests will update the last_visit. BUT the login will expire anyway (after expiration, since the original login), which I can not understand from the code above. This does not happen when doing normal accesses: doing periodic requests will keep an active login forever, which is expected I think. Am I missing something here? Thanks, Daniel --
[web2py] Set up of db.py takes too long time
Hi,
My db.py takes a long time to run (around 40 ms). This means that just the
overhead of db.py limits my throughput to 25 req/s (in a single process /
single thread configuration). This seems to me quite low.
I have tried to take a look at where the time is spent. I have seen the
following runtimes. These are average values:
8 ms - session.connect(request,response,db=MEMDB(cache.memcache))
2 ms - db = DAL('sqlite://storage.sqlite', migrate=False)
5 ms - auth = Auth(db)
20 ms - define tables
My define tables is like this:
# Use the authorization table for users
web2py_user_table = auth.settings.table_user_name
# web2py_user_table = 'web2py_user'
db.define_table(
web2py_user_table,
Field('org_id', type='integer', compute=set_org_id),
Field('email',unique=True),
Field('user_doc_id', length=128, compute=create_new_user),
Field('password', length=512, compute=automatic_password
, type='password', readable=False, label='Password'), # TODO: use CRYPT
# These fields are needed for authorization
Field('registration_key', length=512, writable=False, readable=
False, default=''),
Field('reset_password_key', length=512, writable=False, readable=
False, default=''),
Field('registration_id', length=512, writable=False, readable=
False, default=''),
format = '%(email)s')
# Add constraints to the web2py_user table
web2py_user = db[web2py_user_table]
web2py_user.email.requires= [IS_EMAIL(error_message=auth.
messages.invalid_email), IS_NOT_IN_DB(db, '%s.email' % (web2py_user_table))]
# web2py_user.user_doc_id.requires =
IS_NOT_EMPTY(error_message=auth.messages.is_empty)
# web2py_user.password.requires = [IS_STRONG(min=5, special=0,
upper=0), CRYPT()]
auth.define_tables()
Those run times look to me quite high. Maybe some of you can give me hints:
- Is there anything I can do to speed this up?
- Why is the define tables taking such a long time, even with
migrate=False?
- Would moving to postgres improve things a lot?
- Is sqlite the bottleneck here?
It is difficult for me to believe that sqlite is the cultprit here: I am
using a single client in my tests, sending requests sequentially (no
parallel requests).
Thanks,
Daniel
--
Re: [web2py] Set up of db.py takes too long time
Very few records (around 10). I am testing still. On Tuesday, January 15, 2013 9:23:43 AM UTC+1, rochacbruno wrote: On Tue, Jan 15, 2013 at 6:20 AM, Daniel Gonzalez gonv...@gmail.comjavascript: wrote: IS_NOT_IN_DB(db, '%s.email' % (web2py_user_table)) If you too many records on user table, the above code will take a long time, because on every request it will select email from auth_user --
Re: [web2py] Set up of db.py takes too long time
No imports in the code-area profiled. Also, I am testing some requests, but the time I am measuring is the time spent in the code-area that I have provided. That is, in the define tables code. The controllers are of course making use of the table definitions later, but that is not what I am measuring. I have put a print time.time() before and after the define tables code. So no controller is involved in my measurements. On Tuesday, January 15, 2013 9:56:57 AM UTC+1, rochacbruno wrote: It will run only when called! But if he is testing a form, the problem maybe there. There are some imports? --
[web2py] What is the timeout for the session?
Hi, In one of my controllers I would to display: - what is the timeout for this session - how long has the current session still to stay active - a list of requests / timestamps (I guess this is not tracked in web2py) - when was the last request performed (unfortunately this will be the current request, so it will be now?) I have taken a look at the code and I found: - Session._last_timestamp But I am unable to see where the timeout parameter is set for a session. Definitely not in Session.connect() ... Thanks, Daniel --
[web2py] Re: What is the timeout for the session?
Thanks Niphlod, I am now using: - session.auth.expiration - session.auth.last_visit And I have realized about one (at least for me) unexpected thing: accessing @service.jsonrpc controllers does not reset session.auth.last_visit. Is this intended? On Tuesday, January 15, 2013 11:43:11 AM UTC+1, Niphlod wrote: session expiration is managed by auth.settings.expiration ... --
[web2py] Re: Fatal Python error: Couldn't create autoTLSkey mapping
I am actually researching the same problem. Please take a look here: https://groups.google.com/d/topic/modwsgi/DW-SlIb07rE/discussion http://bugs.python.org/issue13156 This is a bug in python 2.7.2, and has been solved in 2.7.3. I am also affected, and will have to upgrade all my servers :( On Tuesday, January 15, 2013 11:51:44 AM UTC+1, Niphlod wrote: I may be out of line here, but the problem may lie in the fact that if you want to start a subprocess usually subprocess.call uses a thread to communicate with it. uwsgi doesn't allow to spawn your own threads as long as you don't supply the --enable-threads parameter. PS: spawning processes from a web-app poses always a lot of problems (concurrency, pipes, stderrs, inherited socket, and so on). Be sure of what you're doing. Il giorno martedì 15 gennaio 2013 06:30:14 UTC+1, Richard Penman ha scritto: hello, I set up a uwsgi / nginx server using the setup-web2py-nginx-uwsgi-ubuntu.sh script. However I find when the app tries to start a sub-process I get this error: Fatal Python error: Couldn't create autoTLSkey mapping I read around and apparently this can happen when lack of memory. Do you see any problems with these uwsgi settings: uwsgi socket/tmp/web2py.socket/socket pythonpath/var/www/web2py//pythonpath mount/=wsgihandler:application/mount master/ processes4/processes harakiri60/harakiri reload-mercy8/reload-mercy cpu-affinity1/cpu-affinity stats/tmp/stats.socket/stats max-requests2000/max-requests limit-as512/limit-as reload-on-as256/reload-on-as reload-on-rss192/reload-on-rss uidwww-data/uid gidwww-data/gid cron0 0 -1 -1 -1 python /var/www/web2py/web2py.py -Q -S welcome -M -R scripts/sessions2trash.py -A -o/cron no-orphans/ /uwsgi --
[web2py] Re: What is the timeout for the session?
And a related question: my session is expiring after 5 minutes (300s). I am not setting the expiration time, and the default in Auth.default_settings.expiration is 3600. Where is the 300 coming from!?!? On Tuesday, January 15, 2013 11:57:03 AM UTC+1, Daniel Gonzalez wrote: Thanks Niphlod, I am now using: - session.auth.expiration - session.auth.last_visit And I have realized about one (at least for me) unexpected thing: accessing @service.jsonrpc controllers does not reset session.auth.last_visit. Is this intended? On Tuesday, January 15, 2013 11:43:11 AM UTC+1, Niphlod wrote: session expiration is managed by auth.settings.expiration ... --
Re: [web2py] Re: Fatal Python error: Couldn't create autoTLSkey mapping
The links I sent are related to mod_wsgi / apache / python 2.7.2, but it is a generic python 2.7.2 problem. The problems do not happen always. What python version are you using? On Tuesday, January 15, 2013 1:20:16 PM UTC+1, Richard Penman wrote: I used subprocesses on my previous server with uwsgi and had no problem. On Tue, Jan 15, 2013 at 9:51 PM, Niphlod nip...@gmail.com javascript: wrote: I may be out of line here, but the problem may lie in the fact that if you want to start a subprocess usually subprocess.call uses a thread to communicate with it. uwsgi doesn't allow to spawn your own threads as long as you don't supply the --enable-threads parameter. PS: spawning processes from a web-app poses always a lot of problems (concurrency, pipes, stderrs, inherited socket, and so on). Be sure of what you're doing. Il giorno martedì 15 gennaio 2013 06:30:14 UTC+1, Richard Penman ha scritto: hello, I set up a uwsgi / nginx server using the setup-web2py-nginx-uwsgi-ubuntu.sh script. However I find when the app tries to start a sub-process I get this error: Fatal Python error: Couldn't create autoTLSkey mapping I read around and apparently this can happen when lack of memory. Do you see any problems with these uwsgi settings: uwsgi socket/tmp/web2py.socket/socket pythonpath/var/www/web2py//pythonpath mount/=wsgihandler:application/mount master/ processes4/processes harakiri60/harakiri reload-mercy8/reload-mercy cpu-affinity1/cpu-affinity stats/tmp/stats.socket/stats max-requests2000/max-requests limit-as512/limit-as reload-on-as256/reload-on-as reload-on-rss192/reload-on-rss uidwww-data/uid gidwww-data/gid cron0 0 -1 -1 -1 python /var/www/web2py/web2py.py -Q -S welcome -M -R scripts/sessions2trash.py -A -o/cron no-orphans/ /uwsgi -- --
[web2py] Re: What is the timeout for the session?
And even worse: I am setting, for testing: auth.settings.expiration = 3600 * 24 * 30 # one month But the session is expiring after 5 minutes anyway! What is happening here? On Tuesday, January 15, 2013 12:14:59 PM UTC+1, Daniel Gonzalez wrote: And a related question: my session is expiring after 5 minutes (300s). I am not setting the expiration time, and the default in Auth.default_settings.expiration is 3600. Where is the 300 coming from!?!? On Tuesday, January 15, 2013 11:57:03 AM UTC+1, Daniel Gonzalez wrote: Thanks Niphlod, I am now using: - session.auth.expiration - session.auth.last_visit And I have realized about one (at least for me) unexpected thing: accessing @service.jsonrpc controllers does not reset session.auth.last_visit. Is this intended? On Tuesday, January 15, 2013 11:43:11 AM UTC+1, Niphlod wrote: session expiration is managed by auth.settings.expiration ... --
Re: [web2py] Re: Fatal Python error: Couldn't create autoTLSkey mapping
I have not yet upgraded :( On Tuesday, January 15, 2013 1:25:06 PM UTC+1, Richard Penman wrote: Already 2.7.3. Did you find the problem fixed after upgrading? On Tue, Jan 15, 2013 at 11:22 PM, Daniel Gonzalez gonv...@gmail.comjavascript: wrote: The links I sent are related to mod_wsgi / apache / python 2.7.2, but it is a generic python 2.7.2 problem. The problems do not happen always. What python version are you using? On Tuesday, January 15, 2013 1:20:16 PM UTC+1, Richard Penman wrote: I used subprocesses on my previous server with uwsgi and had no problem. On Tue, Jan 15, 2013 at 9:51 PM, Niphlod nip...@gmail.com wrote: I may be out of line here, but the problem may lie in the fact that if you want to start a subprocess usually subprocess.call uses a thread to communicate with it. uwsgi doesn't allow to spawn your own threads as long as you don't supply the --enable-threads parameter. PS: spawning processes from a web-app poses always a lot of problems (concurrency, pipes, stderrs, inherited socket, and so on). Be sure of what you're doing. Il giorno martedì 15 gennaio 2013 06:30:14 UTC+1, Richard Penman ha scritto: hello, I set up a uwsgi / nginx server using the setup-web2py-nginx-uwsgi-ubuntu.sh script. However I find when the app tries to start a sub-process I get this error: Fatal Python error: Couldn't create autoTLSkey mapping I read around and apparently this can happen when lack of memory. Do you see any problems with these uwsgi settings: uwsgi socket/tmp/web2py.socket/socket pythonpath/var/www/web2py//pythonpath mount/=wsgihandler:application/mount master/ processes4/processes harakiri60/harakiri reload-mercy8/reload-mercy cpu-affinity1/cpu-affinity stats/tmp/stats.socket/stats max-requests2000/max-requests limit-as512/limit-as reload-on-as256/reload-on-as reload-on-rss192/reload-on-rss uidwww-data/uid gidwww-data/gid cron0 0 -1 -1 -1 python /var/www/web2py/web2py.py -Q -S welcome -M -R scripts/sessions2trash.py -A -o/cron no-orphans/ /uwsgi -- -- --
[web2py] Re: What is the timeout for the session?
FYI: Regarding my last two questions: the expiration is set in auth.settings, but since I was using the session in memcache and the default_time_expire in memche is 300 seconds, what I think is happening is that the session in memcache is expiring, even though the session in auth.settings is not. That means no data can be recovered from memcache for the session, and thus the session expires. I see several problems here: - the memcache session does not get updated, even though I am doing accesses (in this case @service.jsonrpc accesses). I mean, this key should be refreshed in memcache since I am accessing it (its ttl must be reset). Just reading the session is not enough: it must be updated too, otherwise it will expire! - auth.settings.expiration is not useful if the memcache time_expire is smaller - session.auth.last_visit does not get updated in @service.jsonrpc accesses Or maybe I am misunderstanding the expiration concept: it could be that only login actions are supposed to refresh the session. But this looks a bit strange to me: as long as the client is sending requests, the session should remain active! Whenever an *inactivity* (meaning, no requests at all) period longer than auth.settings.expiration has passed, the session should expire. Is this how things should work with the current implementation? On Tuesday, January 15, 2013 1:26:48 PM UTC+1, Daniel Gonzalez wrote: And even worse: I am setting, for testing: auth.settings.expiration = 3600 * 24 * 30 # one month But the session is expiring after 5 minutes anyway! What is happening here? On Tuesday, January 15, 2013 12:14:59 PM UTC+1, Daniel Gonzalez wrote: And a related question: my session is expiring after 5 minutes (300s). I am not setting the expiration time, and the default in Auth.default_settings.expiration is 3600. Where is the 300 coming from!?!? On Tuesday, January 15, 2013 11:57:03 AM UTC+1, Daniel Gonzalez wrote: Thanks Niphlod, I am now using: - session.auth.expiration - session.auth.last_visit And I have realized about one (at least for me) unexpected thing: accessing @service.jsonrpc controllers does not reset session.auth.last_visit. Is this intended? On Tuesday, January 15, 2013 11:43:11 AM UTC+1, Niphlod wrote: session expiration is managed by auth.settings.expiration ... --
[web2py] Strange import problem: is sys.path not used in web2py?
Hi, I have a problem with an import in my model: Traceback (most recent call last): File /installdir/web2py/gluon/restricted.py, line 212, in restricted exec ccode in environment File /installdir/web2py/applications/wavilon_portal/models/db.py, line 10, in module import nltk.data File /installdir/web2py/gluon/custom_import.py, line 77, incustom_importer raise ImportError, 'Cannot import module %s' % str(e) ImportError: Cannot import module 'nltk' I thought this would be a problem with sys.path, so I am displaying it in the top of the controller (sys_path_in_model) Then I am doing, manually in the python interpreter: import sys sys.path=sys_path_in_model import nltk.data But this is giving no error! What is happening here? Is the import mechanism in web2py using something different than sys,path? Thanks, Daniel --
[web2py] Re: Strange import problem: is sys.path not used in web2py?
Version 2.3.2 (2012-12-17 08:59:58) stable, commit 9557c46, in Ubuntu 12.04.1 LTS. I am running from a virtualenv with python 2.7.2. I have no idea how to force nltk to be found: the sys.path is correct, as I have verified by setting manually in the interpreter and running the import statement. That is why I mean this is a strange error: everything seems to be set up correctly, but running from web2py I get an import error, and doing the same thing directly in the interpreter does not. I am taking a look at the custom_importer: I do no know why this import is falling to line 77 (if I understand correctly, that part is doing the custom web2py modules/models/controllers importing). It should go to line 96: return NATIVE_IMPORTER(name, globals, locals, fromlist, level) since nltk.data is a system import. It has nothing to do with web2py. On Monday, January 14, 2013 11:42:10 AM UTC+1, Alan Etkin wrote: I have a problem with an import in my model: What version are you running?, in what OS?. As a temporary workaround and If it's a path error you can try fixing sys.path so nltk is found. --
[web2py] Re: Strange import problem: is sys.path not used in web2py?
The problem is this code in custom_import.py
# if not relative and not from applications:
if hasattr(current, 'request') \
and level = 0 \
and not name.split('.')[0] in INVALID_MODULES \
and isinstance(globals, dict):
import nltk.data goes through, but it shouldn't. Why could that be? (I do
not understand the code very well)
On Monday, January 14, 2013 11:52:26 AM UTC+1, Daniel Gonzalez wrote:
Version 2.3.2 (2012-12-17 08:59:58) stable, commit 9557c46, in Ubuntu
12.04.1 LTS. I am running from a virtualenv with python 2.7.2.
I have no idea how to force nltk to be found: the sys.path is correct, as
I have verified by setting manually in the interpreter and running the
import statement. That is why I mean this is a strange error: everything
seems to be set up correctly, but running from web2py I get an import
error, and doing the same thing directly in the interpreter does not.
I am taking a look at the custom_importer: I do no know why this import is
falling to line 77 (if I understand correctly, that part is doing the
custom web2py modules/models/controllers importing). It should go to line
96:
return NATIVE_IMPORTER(name, globals, locals, fromlist, level)
since nltk.data is a system import. It has nothing to do with web2py.
On Monday, January 14, 2013 11:42:10 AM UTC+1, Alan Etkin wrote:
I have a problem with an import in my model:
What version are you running?, in what OS?. As a temporary workaround and
If it's a path error you can try fixing sys.path so nltk is found.
--
[web2py] Re: Strange import problem: is sys.path not used in web2py?
I have logged the import activity, modifying custom_import like this:
FORMAT=%s - %-40s %-10s %-10s %-10s %-10s
# if not relative and not from applications:
if hasattr(current, 'request') \
and level = 0 \
and not name.split('.')[0] in INVALID_MODULES \
and isinstance(globals, dict):
print FORMAT % (custom, name, hasattr(current, 'request'), level,name
.split('.')[0] in INVALID_MODULES, isinstance(globals, dict))
...
finally:
if import_tb:
import_tb = None
print FORMAT % (native, name, hasattr(current, 'request'), level, name
.split('.')[0] in INVALID_MODULES, isinstance(globals, dict))
return NATIVE_IMPORTER(name, globals, locals, fromlist, level)
Here you see some of the data:
native - random True -1
True True
custom - nltk.dataTrue -1
False True
native - __future__ True -1
True True
native - os True -1
True True
custom - internalsTrue -1
False True
native - subprocess True -1
True True
native - os True -1
True True
native - os.path True -1
True True
native - re True -1
True True
native - warnings True -1
True True
native - textwrap True -1
True True
native - typesTrue -1
True True
native - sys True -1
True True
native - stat True -1
True True
For nltk the test name.split('.')[0] in INVALID_MODULES is False, but
should be True. Why could that be?
- I had to type this 7 times! the google groups message composer is not
very stable :(
On Monday, January 14, 2013 12:38:43 PM UTC+1, Alan Etkin wrote:
The problem is this code in custom_import.py
With a very similar configuration but the trunk version I could not
reproduce the problem (altough the nltk library has taken about 20 seconds
to import in the model)
My system config:
Python 2.7.3 Ubuntu 12.04 Rocket server
This has something to do with virtualenv surely. BTW, there's a recent
issue posted about module headers that might be related.
--
[web2py] Re: Strange import problem: is sys.path not used in web2py?
I have found a workaround (hack) to my problem. I had to modify:
INVALID_MODULES = set(('', 'gluon', 'applications', 'custom_import'))
to
INVALID_MODULES = set(('', 'gluon', 'applications', 'custom_import', 'nltk',
'collocations', 'numpy', 'testing'))
(there were more modules affected by the same problem). This is ugly, so I
hope we can find a real fix for this.
It seems the custom_import_install:
def custom_import_install():
if __builtin__.__import__ == NATIVE_IMPORTER:
INVALID_MODULES.update(sys.modules.keys())
__builtin__.__import__ = custom_importer
Is not working as expected?
--
[web2py] Changes in jsonrpc calls?
I am moving to a recent web2py version, and I realize that now the json parameters are parsed inside tools.serve_jsonrpc. Previously I was parsing them in my jsonrpc controller, so that means I have to adapt my controllers. Unexpected, but I can manage. My question is: Should I do simplejson.dumps in my controller for the reply, or is this now also done automatically in tools.serve_jsonrpc? I do not see that. I am asking because it looks inconsistent that the parameters are automatically parsed from json, but the reply is not automatically converted to json. Maybe the reply must not always be json, I am not sure about that. --
[web2py] Handling unicode keys in jsonrpc calls
Recently web2py changed to parse the jsonrpc parameters in
tools.py/Service.serve_jsonrpc. Now I have a frawework in my client
(ember.js) which is sending unicode keys in the jsonrpc parameters. This
causes the code to fail, like this:
{version: 1.1, id: ID1, error: {message: TypeError:
access_view() argument after ** must be a mapping, not unicode, code:
100, data: [ File \/xxx/web2py/gluon/tools.py\, line 4266, in
serve_jsonrpc\ns = methods[method](**params)\n], name:
JSONRPCError}}
Previously I was sanitizing those keys in the controller like this:
def process_json_from_client(**pars):
# I do not know why, but sometimes the keys and values come in unicode
# I will convert all keys to strings, and some values too
# (not all, since sometimes unicode is expected)
sanitized = { }
keys_to_convert = ['cdr_doc_id']
for key, value in pars.iteritems():
key = str(key)
if key in keys_to_convert : value = str(value)
sanitized[str(key)] = value
if __debug__ and SHOW_SANITIZED_PARS: log.warning('sanitized - %s', gd.
pp.pformat(sanitized))
return sanitized
But since now this is done in tools.py/Service.serve_jsonrpc, I can not
sanitize before calling the jsonrpc controller.
How can unicode keys be accepted in controllers? I think python does not
allow for unicode parameters, right?
--
[web2py] Make gluon components accessible in mod_wsgi
Hi,
As part of my library, I have a module which I use to wrap some web2py
components. Let's say I have simple.py:
from gluon.html import B
def my_b(txt):
return B(txt)
To successfully import this module, my pwd needs to be the directory where
web2py is installed. Otherwise I get the following error:
import web2pys.simple
Traceback (most recent call last):
File stdin, line 1, in module
File /my/modules/web2pys/simple.py, line 1, in module
from gluon.html import B
ImportError: No module named gluon.html
This means that my application is running fine whenever I run it with with
built in Rockett server (python web2py.py), but serving with apache via
mod_wsgi does not work. I set the python path in mod_wsgi, so that my
modules can be found:
WSGIDaemonProcess web2py-https user=www-data group=www-data display-name=%{
GROUP} python-path=/my/modules
But no idea how make gluon accessible to mod_wsgi.
How can I install web2py in my system, so that gluon components can be
imported normally, like any other python package?
Thanks,
Daniel
--
[web2py] Putting the session in memcache does not work
Hi, I have 0_memcache.py in my models, with following content: from gluon.contrib.memcache import MemcacheClient memcache_servers = ['127.0.0.1:11211'] cache.memcache = MemcacheClient(request, memcache_servers) cache.ram = cache.disk = cache.memcache Now in my db.py model, I have defined (close to the top of the file, before session is used): from gluon.contrib.memdb import MEMDB session.connect(request,response,db=MEMDB(cache.memcache)) After clearing the sessions directory, and logging-in to my application, I see that the sessions are still being created on the file system. Why is this, and what can I do to activate memcache for sessions? (Memcache is installed and running fine on the localhost) Thanks, Daniel --
[web2py] Re: Putting the session in memcache does not work
Thanks Niphlod, you hit it right again! On Sunday, January 13, 2013 1:26:32 PM UTC+1, Niphlod wrote: I think that you need to restart web2py completely because for performances reasons the location of the session (meaning filesystem, cookie, memcache, redis) is evaluated one-time-only can you try restarting the web2py process (or apache, or uwsgi, depending on your setup...) ? On Sunday, January 13, 2013 12:31:24 PM UTC+1, Daniel Gonzalez wrote: Hi, I have 0_memcache.py in my models, with following content: from gluon.contrib.memcache import MemcacheClient memcache_servers = ['127.0.0.1:11211'] cache.memcache = MemcacheClient(request, memcache_servers) cache.ram = cache.disk = cache.memcache Now in my db.py model, I have defined (close to the top of the file, before session is used): from gluon.contrib.memdb import MEMDB session.connect(request,response,db=MEMDB(cache.memcache)) After clearing the sessions directory, and logging-in to my application, I see that the sessions are still being created on the file system. Why is this, and what can I do to activate memcache for sessions? (Memcache is installed and running fine on the localhost) Thanks, Daniel --
[web2py] Invalidated RAM cache from outside web2py to handle refreshing of asynchronous data
Hi, I am serving some data which is expensive to compute with a @service.jsonrpc controller. I want to cache the result in RAM, using something like: @cache(request.env.path_info,time_expire=1000,cache_model=cache.ram) My data will not change very often, so I want to have a big ttl (actually, I would like a ttl forever, is this possible?) But my main problem is this: in my architecture, web2py does not know when new data is available (the data is in a third-party database, completely out of control of web2py). Changes to the data happen asynchronously, according to business processes. I have three pieces: 1. web2py serving the data to the clients, via jsonrpc 2. a small script which knows (long-polling) when changes in the third-party database occur 3. a library to process the information in the third-party database. Calling this must be avoided at all costs, *except* when we have actual changes (which is why I want to add the cache) The easiest implementation for me would be to be able, from the external script, to invalidate the web2py cache whenever I detect changes relevant to the active sessions (not the whole cache, just the part related to my jsonrpc controller) Is this possible? Maybe by calling a web2py controller which is in charge of invalidating the cache? What about the session? I assume the web2py cache is session-related. My script should call the web2py controller using the correct session, but I do not know how to handle this. Thanks, Daniel --
[web2py] Re: Invalidated RAM cache from outside web2py to handle refreshing of asynchronous data
Thanks, that makes sense. In that context, I have two questions: 1. How do I call cache.ram.clear from outside web2py. What web2py modules should I include? 2. How can I call a controller disguised as a user? I think this would be the most robust way, if it is possible ... On Friday, January 11, 2013 2:42:37 PM UTC+1, Niphlod wrote: Cache is always related to a key. In your function, that key is request. env.path_info Let's assume your key is *the_key* If you need to invalidate the cache, you should use cache.ram.clear(* the_key*) or cache.ram(*the_key*, None). From here one, there are 2 paths ahead of you: - you have an empty cache and it will be filled at the 1st request coming from an user after you called clear() - you want to fill that key after clear() ASAP In the 1st case, after calling clear() you don't have to do nothing. In the 2nd case, either you call the controller disguised as a user or you process the data and store it using cache.ram(*the_key*, thevalue) Il giorno venerdì 11 gennaio 2013 13:07:08 UTC+1, Daniel Gonzalez ha scritto: Hi, I am serving some data which is expensive to compute with a @service.jsonrpc controller. I want to cache the result in RAM, using something like: @cache(request.env.path_info,time_expire=1000,cache_model=cache.ram) My data will not change very often, so I want to have a big ttl (actually, I would like a ttl forever, is this possible?) But my main problem is this: in my architecture, web2py does not know when new data is available (the data is in a third-party database, completely out of control of web2py). Changes to the data happen asynchronously, according to business processes. I have three pieces: 1. web2py serving the data to the clients, via jsonrpc 2. a small script which knows (long-polling) when changes in the third-party database occur 3. a library to process the information in the third-party database. Calling this must be avoided at all costs, *except* when we have actual changes (which is why I want to add the cache) The easiest implementation for me would be to be able, from the external script, to invalidate the web2py cache whenever I detect changes relevant to the active sessions (not the whole cache, just the part related to my jsonrpc controller) Is this possible? Maybe by calling a web2py controller which is in charge of invalidating the cache? What about the session? I assume the web2py cache is session-related. My script should call the web2py controller using the correct session, but I do not know how to handle this. Thanks, Daniel --
[web2py] Re: Invalidated RAM cache from outside web2py to handle refreshing of asynchronous data
Thanks Niphlod. With that I can proceed to implementation. I am also considering another option: use memcached. This is not integrated with web2py (as far as I know), but would maybe simplify my implementation. Do you think the performance impact of using memcached (which is accessed via tcp) compared to using web2py's cache.ram (which lives in the web2py memory map) is very big? On Friday, January 11, 2013 3:06:40 PM UTC+1, Niphlod wrote: 1. if you use cache.ram you can't access the ram that your web2py process is using from outside that process. In that case you can code a controller that does the trick and call it, e.g., with curl from the commandline. 2. same thing, curl from the commandline, or use urllib2, or something that basically does a request to your webserver. Il giorno venerdì 11 gennaio 2013 14:53:27 UTC+1, Daniel Gonzalez ha scritto: Thanks, that makes sense. In that context, I have two questions: 1. How do I call cache.ram.clear from outside web2py. What web2py modules should I include? 2. How can I call a controller disguised as a user? I think this would be the most robust way, if it is possible ... On Friday, January 11, 2013 2:42:37 PM UTC+1, Niphlod wrote: Cache is always related to a key. In your function, that key is request.env.path_info Let's assume your key is *the_key* If you need to invalidate the cache, you should use cache.ram.clear(* the_key*) or cache.ram(*the_key*, None). From here one, there are 2 paths ahead of you: - you have an empty cache and it will be filled at the 1st request coming from an user after you called clear() - you want to fill that key after clear() ASAP In the 1st case, after calling clear() you don't have to do nothing. In the 2nd case, either you call the controller disguised as a user or you process the data and store it using cache.ram(*the_key*, thevalue) Il giorno venerdì 11 gennaio 2013 13:07:08 UTC+1, Daniel Gonzalez ha scritto: Hi, I am serving some data which is expensive to compute with a @service.jsonrpc controller. I want to cache the result in RAM, using something like: @cache(request.env.path_info,time_expire=1000,cache_model=cache.ram) My data will not change very often, so I want to have a big ttl (actually, I would like a ttl forever, is this possible?) But my main problem is this: in my architecture, web2py does not know when new data is available (the data is in a third-party database, completely out of control of web2py). Changes to the data happen asynchronously, according to business processes. I have three pieces: 1. web2py serving the data to the clients, via jsonrpc 2. a small script which knows (long-polling) when changes in the third-party database occur 3. a library to process the information in the third-party database. Calling this must be avoided at all costs, *except* when we have actual changes (which is why I want to add the cache) The easiest implementation for me would be to be able, from the external script, to invalidate the web2py cache whenever I detect changes relevant to the active sessions (not the whole cache, just the part related to my jsonrpc controller) Is this possible? Maybe by calling a web2py controller which is in charge of invalidating the cache? What about the session? I assume the web2py cache is session-related. My script should call the web2py controller using the correct session, but I do not know how to handle this. Thanks, Daniel --
[web2py] Running some code at the end of the request
Hi, I would like to run some code when the request has been processed, but I do not want to modify all my controllers for this. To run something at the beginning of every request, I just need to put my code on the models/db.py. Is it possible to run code at the end of the request processing too? Thanks, Daniel --
[web2py] Establishin a session with contrib.WebClient
Hi, I am trying to test my application with WebClient. My application has a non-standard login process, based on a couple of redirects. When login manually in the browser, everything works fine. Taking a look at the requests, I see that after the first redirect a session cookie appears in the request. When doing the same POST request with WebClient, the session cookie does not appear after the first redirect. I wonder if the redirects are handled internally in web2py, or if they communicate with the client (browser / WebClient). Eventually the cookie is sent back in the reply to WebClient, but in between redirects the session is not yet set (only when testing with WebClient), which makes my test fail because session specific data which is setup during the redirect phase can not be configured. How to handle the redirects with WebClient? Thanks, Daniel Gonzalez --
[web2py] Re: Establishin a session with contrib.WebClient
Trying to answer some of my questions. The redirects are handled by the client. In the case of WebClient probably by the urrlib2 library. Now my question is: how do I tell the urllib2 library used by WebClient to properly setup the cookies when following a redirect? Thanks, Daniel --
[web2py] Re: Using contrib.webclient to test JSONRPC interfaces
Mmm, thanks. I have not taken a look at that yet. I will. Nevertheless, I like the idea of having an integrated client to handle all kind of requests (including jsonrpc), which makes it easier for me for statistics and performance gathering. On Monday, December 24, 2012 6:44:59 AM UTC+1, Massimo Di Pierro wrote: Hello Daniel, getting back at this. Why use webclient for this instead of using gluon/contrib/simplejsonrpc.py? its seems to me it does not belong there. On Monday, 17 December 2012 14:01:18 UTC-6, Daniel Gonzalez wrote: I have slightly modified the WebClient to support jsonrpc. I am not sure everything is correctly covered, but it is suiting my needs. In case you are interested, you can see the changes here: https://github.com/gonvaled/web2py/tree/webclient_add_jsonrpc The biggest problem I had was that opener.addheaders.append((key,str(value))) is not working as (I) expected: the content-type is not rewritten: http://stackoverflow.com/questions/13920211/not-possible-to-set-content-type-to-application-json-using-urllib2 On Monday, December 17, 2012 6:38:30 PM UTC+1, Daniel Gonzalez wrote: Hi, I am trying to understand how to use the included WebClient to test a JSONRPC interface. One showstopper for me at the moment is that I see the following in WebClient.post: # time the POST request data = urllib.urlencode(data) t0 = time.time() self.response = opener.open(self.url,data) self.time = time.time()-t0 When doing JSONRPC accesses I do not want the data to be urlencoded. Actually, I will prepare the data with json.dump, and I want WebClient to POST it transparently (I guess this goes in the body of the POST request). Is this at all possible? Is there an example of WebClient usage for JSONRPC interfaces somewhere? Thanks, Daniel Gonzalez --
[web2py] Re: Establishin a session with contrib.WebClient
I found a workaround: first send a login request without cookies to *get* the session cookie from web2py, and then do a second login request with the cookie, to give web2py a chance to set the session data. This sets up my tester with a valid session cookie, which corresponds to valid session data in web2py, and my testing can start. This is a dirty way of handling the redirect (actually, it is *not* handling the redirect, which is still handled internally - twice - in urrlib2), but since I do not yet know how to modify WebClient to properly handle redirects, I will have to settle with this for the time being. On Monday, December 24, 2012 2:38:48 PM UTC+1, Daniel Gonzalez wrote: Trying to answer some of my questions. The redirects are handled by the client. In the case of WebClient probably by the urrlib2 library. Now my question is: how do I tell the urllib2 library used by WebClient to properly setup the cookies when following a redirect? Thanks, Daniel --
[web2py] Re: Using contrib.webclient to test JSONRPC interfaces
Indeed Massimo, that is the file. Some comments: - I am forcing Content-Type to 'application/json-rpc' in WebClient.post - The data must be already json encoded - The opener.addheaders is still used, but since I am using a urllib2.Request (to *really* force the Content-Type, which can not be done with addheaders, as you can see in the previously linked StackOverflow question), I would say the headers set with addheaders are not really active. - That means self.detault_headers are probably not used - for jsonrpc post I have disabled form processing - and last but not least, my changes are based on 2.0.2. I assume no big changes have been done for the WebClient since then, but I have not verified. I am not sure what are the implicactions of all these changes. Maybe some corrections are in order. On Tuesday, December 18, 2012 4:27:26 AM UTC+1, Massimo Di Pierro wrote: you point me to the file? Is it this one? https://github.com/gonvaled/web2py/blob/webclient_add_jsonrpc/gluon/contrib/webclient.py On Monday, 17 December 2012 14:01:18 UTC-6, Daniel Gonzalez wrote: I have slightly modified the WebClient to support jsonrpc. I am not sure everything is correctly covered, but it is suiting my needs. In case you are interested, you can see the changes here: https://github.com/gonvaled/web2py/tree/webclient_add_jsonrpc The biggest problem I had was that opener.addheaders.append((key,str(value))) is not working as (I) expected: the content-type is not rewritten: http://stackoverflow.com/questions/13920211/not-possible-to-set-content-type-to-application-json-using-urllib2 On Monday, December 17, 2012 6:38:30 PM UTC+1, Daniel Gonzalez wrote: Hi, I am trying to understand how to use the included WebClient to test a JSONRPC interface. One showstopper for me at the moment is that I see the following in WebClient.post: # time the POST request data = urllib.urlencode(data) t0 = time.time() self.response = opener.open(self.url,data) self.time = time.time()-t0 When doing JSONRPC accesses I do not want the data to be urlencoded. Actually, I will prepare the data with json.dump, and I want WebClient to POST it transparently (I guess this goes in the body of the POST request). Is this at all possible? Is there an example of WebClient usage for JSONRPC interfaces somewhere? Thanks, Daniel Gonzalez --
[web2py] Web2py thread management
Hi,
How are threads managed in web2py? I am stress testing with a multithreaded
programm, and I see that web2py spawns 14 worker threads.
These threads are not created/destroyed, but seem to run forever.
python,8698 web2py.py -a
|-{python},9005
|-{python},9023
|-{python},9042
|-{python},9043
|-{python},9044
|-{python},9050
|-{python},9051
|-{python},9053
|-{python},9054
|-{python},9055
|-{python},9057
|-{python},9058
|-{python},9059
`-{python},9060
I have several questions:
- How do these threads map to the requests? Does each thread serve a
request?
- That means web2py can maximally cope with 14 parallel requests?
- Is this number (14) configurable?
- Are the objects defined in the models initialized at thread creation,
and then reused for all requests?
Thanks,
Daniel
--
[web2py] Using contrib.webclient to test JSONRPC interfaces
Hi, I am trying to understand how to use the included WebClient to test a JSONRPC interface. One showstopper for me at the moment is that I see the following in WebClient.post: # time the POST request data = urllib.urlencode(data) t0 = time.time() self.response = opener.open(self.url,data) self.time = time.time()-t0 When doing JSONRPC accesses I do not want the data to be urlencoded. Actually, I will prepare the data with json.dump, and I want WebClient to POST it transparently (I guess this goes in the body of the POST request). Is this at all possible? Is there an example of WebClient usage for JSONRPC interfaces somewhere? Thanks, Daniel Gonzalez --
Re: [web2py] Specify password strengh, with error feedback
Thanks, this was very helpful. On Monday, December 17, 2012 4:05:02 AM UTC+1, Massimo Di Pierro wrote: Which you can find here: http://web2py.com/examples/static/epydoc/web2py.gluon.validators.IS_STRONG-class.html On Sunday, 16 December 2012 17:49:51 UTC-6, Jonathan Lundell wrote: On 16 Dec 2012, at 3:47 PM, Daniel Gonzalez gonv...@gmail.com wrote: Is is possible to specify what kind of password is allowed? For example, let's say I want: - length =8 - at least 1 uppercase - at least 1 lowercase - at least 1 number - at least 1 char in a pre-defined set() I would also like to give the end-user information about why the password did not pass the cut, like At least one uppercase is needed. How would this be done in web2py? Have a look at IS_STRONG. --
[web2py] Re: Using contrib.webclient to test JSONRPC interfaces
I have slightly modified the WebClient to support jsonrpc. I am not sure everything is correctly covered, but it is suiting my needs. In case you are interested, you can see the changes here: https://github.com/gonvaled/web2py/tree/webclient_add_jsonrpc The biggest problem I had was that opener.addheaders.append((key,str(value))) is not working as (I) expected: the content-type is not rewritten: http://stackoverflow.com/questions/13920211/not-possible-to-set-content-type-to-application-json-using-urllib2 On Monday, December 17, 2012 6:38:30 PM UTC+1, Daniel Gonzalez wrote: Hi, I am trying to understand how to use the included WebClient to test a JSONRPC interface. One showstopper for me at the moment is that I see the following in WebClient.post: # time the POST request data = urllib.urlencode(data) t0 = time.time() self.response = opener.open(self.url,data) self.time = time.time()-t0 When doing JSONRPC accesses I do not want the data to be urlencoded. Actually, I will prepare the data with json.dump, and I want WebClient to POST it transparently (I guess this goes in the body of the POST request). Is this at all possible? Is there an example of WebClient usage for JSONRPC interfaces somewhere? Thanks, Daniel Gonzalez --
[web2py] web2py performance, without db
Hi, I am trying to get some metrics on my installation. For that I have disabled the database (db=None) and I am requesting a very simple controller: def hello1(): return Hello World I have a multi-threaded test program which is sending requests to web2py (using WebClient). I have let my test run for several iterations, and I got the following metrics: CLIENTS ROUNDS ELLAPSED (s)TOT REQ AVG (ms) REQ/s 8 72 17.969576 31.197 32.05 9 25 6.973225 30.991 32.27 6 4 0.748 24 31.179 32.07 7 17 3.645119 30.634 32.64 7 58 12.340406 30.393 32.90 3 73 6.751219 30.827 32.44 10 12 3.399120 28.329 35.30 4 32 3.941128 30.791 32.48 1 27 0.742 27 27.496 36.37 8 58 14.156464 30.508 32.78 4 31 3.574124 28.819 34.70 8 14 3.274112 29.232 34.21 9 68 18.722612 30.591 32.69 9 81 22.070729 30.275 33.03 4 47 6.031188 32.079 31.17 7 75 15.491525 29.506 33.89 1 90 2.495 90 27.719 36.08 8 38 9.495304 31.234 32.02 2 60 4.000120 33.335 30.00 2 81 5.057162 31.214 32.04 (CLIENTS is the number of active threads, ROUNDS is the number of requests that each thread performs) As you see, I am getting quite stable speed of between 30 and 36 requests/s. This is fine, but 32 req/s is quite low. My system is (this is my development system, an HP 635): - web2py 2.0.2 - 2 cores, AMD E-450 - 4 GB RAM - Linux 2.6.32-5-686 - CrunchBang Linux statler - Python 2.7.2 - I am using Rocket - No apache (or any other frontend). Directly accessing localhost:8000 - web2py and my test program are sharing the same machine. I would like to optimize these parameters before moving to production. Is there something obvious that I could try to improve these metrics? Is 30 req/s an expected value for such a simple test? I expected more than 100 req/s. Now that I am writing and thinking about this, I am not even sure if the limiting factor is web2py or my test program ... How could I know which party is saturating? Thanks, Daniel --
[web2py] Reusing expensive objects
Hi, My application uses some objects which are quite slow to setup. I create this object in the models file, so that they are available for all controllers. Specifically, most of my processing is delegated to a celery queue (based on rabbitmq). The interface to this queue is wrapped by a class (MessageQueueClient) which I instantiate in the model file db.py. If I understand things correctly, this object will be instantiated for each request coming to web2py. Would it be possible to reuse these objects, so that successive requests do not need to create them again? How could this be done? Thanks, Daniel --
[web2py] Re: Prevent calling compute when doing an update
Mmmm ... I see. I actually went another route: I am passing all existing
parameters to the update_record function, changing only the password. By
passing the existing parameters, it seems the compute function is not
called.
On Saturday, December 15, 2012 3:26:41 PM UTC+1, Massimo Di Pierro wrote:
You can set
db.table.field.compute = lambda:
only in the actions that need it.
On Saturday, 15 December 2012 04:26:33 UTC-6, Daniel Gonzalez wrote:
Hi,
I am implementing a password update feature. I am doing something like
this:
def change_pass(email, new_pass):
my_query = db[auth.settings.table_user_name].email == email
my_set = db(my_query)
my_set.update(password = new_pass)
The problem is that this is calling one of my compute definitions in one
of the fields.
Field('third_party_entity', compute=
big_and_ugly_code_only_intended_for_new_entries)
My compute is not intended to be used for updates, but only for new
record creations.
I do not want update to call the compute functions. Actually, I do not
want update to do *anything* except updating the field that I
am explicitly giving. Is this possible?
Thanks,
Daniel Gonzalez
--
[web2py] Specify password strengh, with error feedback
Hi, Is is possible to specify what kind of password is allowed? For example, let's say I want: - length =8 - at least 1 uppercase - at least 1 lowercase - at least 1 number - at least 1 char in a pre-defined set() I would also like to give the end-user information about why the password did not pass the cut, like At least one uppercase is needed. How would this be done in web2py? Thanks, Daniel --
[web2py] Moving from 2.0.2 to R-2.3.1: undefined with globals in models
Hi, My application is using 2.0.2 I have some global variables defined in db.py which I am using in my controllers. Now I have tried to move to the latest web2py version (2.3.1), and those globals can not be accessed from the controllers. Has there been any important change in this regard? Do I need to import the models in my controllers now, in order to access the global variables defined there? Thanks, Daniel --
[web2py] Prevent calling compute when doing an update
Hi,
I am implementing a password update feature. I am doing something like this:
def change_pass(email, new_pass):
my_query = db[auth.settings.table_user_name].email == email
my_set = db(my_query)
my_set.update(password = new_pass)
The problem is that this is calling one of my compute definitions in one of
the fields.
Field('third_party_entity', compute=
big_and_ugly_code_only_intended_for_new_entries)
My compute is not intended to be used for updates, but only for new record
creations.
I do not want update to call the compute functions. Actually, I do not want
update to do *anything* except updating the field that I
am explicitly giving. Is this possible?
Thanks,
Daniel Gonzalez
--
[web2py] Forcing minus for converted parameter names in form helpers
Hi, I am trying to create a radio component in a custom web2py form, using twitter bootstrap styles, as explained herehttp://twitter.github.com/bootstrap/javascript.html#buttons . In order for the button group to behave like a radio button, we need to specify the 'data-toggle=buttons-radio' modifier. I have tried to do this in web2py with '_data_toggle=buttons-radio', but web2py is generating data_toggle instead of data-toggle (underscore instead of minus). Is there a way to tell web2py to convert the underscores in the parameter names to minus instead of underscore? This is my code: def get_bootstrap_radio(options): '''div class=btn-group data-toggle=buttons-radio button class=btn type=button1/button button class=btn type=button2/button button class=btn type=button3/button /div''' i = [] for value in options: i.append(BUTTON(value, _type=button, _class=btn)) return DIV(*i, _class='btn-group', _data_toggle=buttons-radio) Thanks, Daniel --
[web2py] Re: Forcing minus for converted parameter names in form helpers
Thanks Niphlod, this is working. For the record:
def get_bootstrap_radio(options):
'''div class=btn-group data-toggle=buttons-radio
button class=btn type=button1/button
button class=btn type=button2/button
button class=btn type=button3/button
/div'''
i = []
for value in options:
i.append(BUTTON(value, _type=button, _class=btn))
return DIV(*i, _class='btn-group', **{'_data-toggle': buttons-radio })
On Tuesday, November 20, 2012 9:50:48 AM UTC+1, Niphlod wrote:
this is beginning to be a FAQ
http://web2py.com/books/default/chapter/29/05?search=data-
On Tuesday, November 20, 2012 9:37:34 AM UTC+1, Daniel Gonzalez wrote:
Hi,
I am trying to create a radio component in a custom web2py form, using
twitter bootstrap styles, as explained
herehttp://twitter.github.com/bootstrap/javascript.html#buttons
.
In order for the button group to behave like a radio button, we need to
specify the 'data-toggle=buttons-radio' modifier.
I have tried to do this in web2py with '_data_toggle=buttons-radio',
but web2py is generating data_toggle instead of data-toggle (underscore
instead of minus).
Is there a way to tell web2py to convert the underscores in the parameter
names to minus instead of underscore?
This is my code:
def get_bootstrap_radio(options):
'''div class=btn-group data-toggle=buttons-radio
button class=btn type=button1/button
button class=btn type=button2/button
button class=btn type=button3/button
/div'''
i = []
for value in options:
i.append(BUTTON(value, _type=button, _class=btn))
return DIV(*i, _class='btn-group', _data_toggle=buttons-radio)
Thanks,
Daniel
--
[web2py] Showing a fixed URL for a web2py application
Hi, In my application, I would like the URL being shown to the user to be always the same (http://www.myapp.com), no matter what page the user is currently browsing. The idea is that the user should not be confused about the internal structure of my application. The links in the page would remain as they are, but the browser would show always the same address. Is this at all possible with web2py? What side-effects could this have? Thanks, Daniel --
[web2py] Implementing a self-modifying form in web2py
Hello, I am trying to implement a contact form (similar to the one in gmail) with web2py. I have problems implementing the following feature: the user should be able to expand the form, by adding new entries to the contact (for other telephone numbers, or other information). The user is presented at first with a simple form, and then a Add button should show a new input field. This field should be: - added *without* forcing a reload of the page - it should be processed by web2py when the form is submitted. I guess this is only possible to be implemented with complicated jQuery logic (or similar client-side programming). Or is there a simple way to implement this in web2py? Thanks, Daniel --
[web2py] Display a list of dictionaries as an html table
Hello,
I am generating some data on the fly (no database), which I would like to
display using a controller / view. The data is organized as a list of
dictionaries, like this:
headers = [ 'header1', 'header2' ]
data = [
{ 'col1' : 'valA', 'col2' : 'valB' },
{ 'col1' : 'valC', 'col2' : 'valD },
]
How can I code a controller to return an already prepared table for my view?
Thanks,
Daniel
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[web2py] Using PYTHONOPTIMIZE with web2py
Hi, I am running web2py via apache wsgi. What is the suggested way to run the python interpreter with PYTHONOPTIMIZE? Are there any known incompatibilities between web2py and PYTHONOPTIMIZE? Thanks, Daniel --
[web2py] Submitting a form with a link
Hi, I am preparing a customized log-in form. I want to add a link to recover the password, which is implemented with the A(..) element. In the controller function where I want to send an email, I need to access the email given by the user. I do that with request.vars.email. The problem is that, since the form was not submitted, the email is empty. How can I submit the form with an A() element? Please note that I *do not* want to have an extra button with Lost Password to submit the form. I really want it to be a link. Is this possible? Thanks, Daniel --
