[web2py] relational database example app
Dear Friends of Web2Py, I am just getting started and need an example application using a relational database. A possible example: 1) with customers, items, purchases tables So the purchases table would use customerId and itemId numbers from their related tables. So a customer can select an item in a form page from a list of items and make a purchase or find more detailed info on the item. 2) books, users, lending tables. the lending table uses userId and bookId from their related tables. So a user can select a book to borrow from a list of books and get more info on the book by clicking a button or link. You get the idea. I can write this as a regular desktop application but need to know how to do this in a Web2Py web application. Following an existing program, possibly with some help files or tutorial would jump start me into web apps with Web2Py. Many thanks for your suggestions, Markandeya
[web2py] Re: relational database example app
Ok i found some appliances on the Appliances web page and that is very helpful. Which ones are considered good coding standards/practices to follow?? Which would you advise to get started with?? Any recommendations or suggestions would be appreciated. Thanks again, Markandeya
Re: [web2py] relational database example app
had already checked web2py appliances? http://web2py.com/appliances On Wed, May 25, 2011 at 1:19 PM, Markandeya mrc55...@gmail.com wrote: Dear Friends of Web2Py, I am just getting started and need an example application using a relational database. A possible example: 1) with customers, items, purchases tables So the purchases table would use customerId and itemId numbers from their related tables. So a customer can select an item in a form page from a list of items and make a purchase or find more detailed info on the item. 2) books, users, lending tables. the lending table uses userId and bookId from their related tables. So a user can select a book to borrow from a list of books and get more info on the book by clicking a button or link. You get the idea. I can write this as a regular desktop application but need to know how to do this in a Web2Py web application. Following an existing program, possibly with some help files or tutorial would jump start me into web apps with Web2Py. Many thanks for your suggestions, Markandeya
[web2py] Re: relational database example app
The estore is quite outdated but probably still the best available ecommerce example: http://code.google.com/p/web2py-estore/
[web2py] Memory problems on Webfaction after upgrade of Web2py
After upgrading web2py on Webfaction I am experiencing memory problems at least once a week. I have upgraded the memory configuration form 80Mb to 160Mb in January this year and never had this problem until I upgraded to the present version of Web2py (Version 1.95.1). I have disabled cron after the upgrade. Can it be a memory leak that causes this? Regards Johann -- May grace and peace be yours in abundance through the full knowledge of God and of Jesus our Lord! His divine power has given us everything we need for life and godliness through the full knowledge of the one who called us by his own glory and excellence. 2 Pet. 1:2b,3a
Re: [web2py] Memory problems on Webfaction after upgrade of Web2py
This might be a problem with sessions list being loaded in to memory. By default web2py Cron calls a method which cleans unused sessions. But, the best way to track it is trying enabling Cron again. Em 25/05/2011 04:05, Johann Spies johann.sp...@gmail.com escreveu: After upgrading web2py on Webfaction I am experiencing memory problems at least once a week. I have upgraded the memory configuration form 80Mb to 160Mb in January this year and never had this problem until I upgraded to the present version of Web2py (Version 1.95.1). I have disabled cron after the upgrade. Can it be a memory leak that causes this? Regards Johann -- May grace and peace be yours in abundance through the full knowledge of God and of Jesus our Lord! His divine power has given us everything we need for life and godliness through the full knowledge of the one who called us by his own glory and excellence. 2 Pet. 1:2b,3a
[web2py] Re: can't use admin, can't see tickets with localhost google appengine SDK
Thank you, Arbie!
For a while I was using a Windows (windose) machine with the Google
App Engine Launcher, and so had no console to see.
Then I switched to linux, and didn't even notice that the console
echoed the error output!
Curiously, with an old debian machine with python 2.5.2, admin and
tickets work fine (through the browser) if I run the web2py server
directly instead of through the GAE. I found this the best way to
debug. Occasionally I switch to running through the (localhost) GAE
to make sure everything works there too.
One frustrating thing (so far) is that it seems that it is much harder
to debug errors in views (.html files) than in controllers, because
the line numbering is all mixed up (due to the {{extend *.html}}
statements).
On my Ubuntu 10.04.2 machine, admin and tickets don't work. Not sure
why, but might try to investigate the difference between it and my old
debian machine, since it's useful functionality!
Thanks for your help!!!
L.
On May 20, 12:40 am, Arbie Samong phek...@gmail.com wrote:
Admin is disabled there. If you want to check for errors go see your
console. On production, check the server logs at the left menu on your
dashboard.
Regards,
Arbie
On May 20, 11:08 am, Pierluigi Martini lgoncal...@gmail.com wrote:
I am trying to deploy an application on GAE using web2py.
I am running GAE SDK 1.5 on my localhost (ubuntu 8.10 , python2.5 with
ssl module but not python-tk)
Usingpython dev_appengine.py ../web2py
works fine execpt that:
If (in the browser) I try to run the admin app, or, more importantly,
if I try to see a ticket due to a bug in my code, I get the error:
admin is disabled because insecure channel
How can I run admin and see tickets when using web2py with GAE SDK on
localhost???
Note that
python web2py.py
works fine, with admin and tickets
(although I have to type my admin password on the console because I
don't have python-tk -- don't know if that makes a difference).
I've looked online for quite a while and haven't found an answer yet.
I hope it is possible to get debug info (tickets) running web2py with
GAE!
Thank you!
L.
Re: [web2py] Memory problems on Webfaction after upgrade of Web2py
On 25 May 2011 09:46, Bruno Rocha rochacbr...@gmail.com wrote: This might be a problem with sessions list being loaded in to memory. By default web2py Cron calls a method which cleans unused sessions. But, the best way to track it is trying enabling Cron again. I will try. The reason why I disabled cron was as a result of advice on this list. I think it was Massimo himself that mentioned that as a method to reduce memory consumption. Is just enabling cron enough to clear up unused sessions? Regards Johann -- May grace and peace be yours in abundance through the full knowledge of God and of Jesus our Lord! His divine power has given us everything we need for life and godliness through the full knowledge of the one who called us by his own glory and excellence. 2 Pet. 1:2b,3a
[web2py] domain and download function problem
Hi guys,
i got a strange problem, I have made a simple application picking up
data from a database, including an upload field for small photos.
This works perfectly if hosted in the classic way, for example if my
server name is stock and the application is stock (...), if I access
http://stock/stock it works !
Then, as this is not pretty, i added a route:
routers = dict(
BASE = dict(
domains = {
'stock': 'stock'
}
)
)
and now, I can access this application at http://stock , but...
Now the link to download the images aren't correct anymore:
the link accessed from http://stock/stock : img src=/stock/download/
stockItems.photo.bc4b40cb067d4cb8.696d677265732e6a706567.jpeg
class=photo
the link accessed from http://stock : img src=/download/
stockItems.photo.bc4b40cb067d4cb8.696d677265732e6a706567.jpeg
class=photo
and the view code :
td class='center noedit'
{{if item.photo:}}img
src={{=URL(a='stock',f='download',args=item.photo)}} class=photo/
{{pass}}
/td
(as you can see, I tried adding the application in the URL
generator..)
Could someone point me where to look at to make it work ? :)
Thanks in advance !!
Re: [web2py] Re: Problem storing Storage objects in sessions
Do we know that the new importer does not conflict with the custom mod_wsgi import mechanism described in the article? Has anybody tried trunk with mod_wsgi? Me and seems to work fine at least in my app. 2011/5/24 Massimo Di Pierro massimo.dipie...@gmail.com This does apply to web2py. In fact I believe the book says something like this quote from the article In order to ensure that no strange problems at all are likely to occur, it is suggested that only basic builtin Python types, ie., scalars, tuples, lists and dictionaries, be stored using the pickle module from a WSGI application script file. That is, avoid any type of object which has user defined code associated with it. Do we know that the new importer does not conflict with the custom mod_wsgi import mechanism described in the article? Has anybody tried trunk with mod_wsgi? Massimo On May 24, 4:42 pm, Jonathan Lundell jlund...@pobox.com wrote: Reading this makes my head hurt, but I wonder if it might not also apply to web2py:http://code.google.com/p/modwsgi/wiki/IssuesWithPickleModule If so, I can think of some ugly workarounds. On May 24, 2011, at 12:13 PM, Ross Peoples ross.peop...@gmail.com wrote: For whatever reason, after running for 24 hours, web2py throws an exception when trying to log in. I have to stop web2py, and restart it, then the error goes away and my application starts working again. Any ideas? Traceback (most recent call last): File /media/psf/Python/web2py/gluon/main.py, line 511, in wsgibase session._try_store_on_disk(request, response) File /media/psf/Python/web2py/gluon/globals.py, line 469, in _try_store_on_disk cPickle.dump(dict(self), response.session_file) PicklingError: Can't pickle class 'gluon.storage.Storage': it's not the same object as gluon.storage.Storage -- http://martin.tecnodoc.com.ar
[web2py] celery integration?
Is there any python module similar to django-celery for web2py? Is it possible to use celery in web2py without a rabbitMQ backend similar to django-kambu using perhaps DAL instead of SQLAlchemy?
[web2py] Re: reponse.js Update 2 Targets.
No your syntax is correct. Can you email me a minimalist app so I can try it quickly? On May 24, 11:05 pm, David J. da...@styleflare.com wrote: I am using Trunk; Is my syntax correct? should it be a ',' instead of a ';' response.js = 'web2py_component(url,target),web2py_component(other_url,other_target);' On 5/24/11 11:40 PM, Massimo Di Pierro wrote: There is no reason why it should not work. Are you using trunk? There was in bug in stable about response.js. On May 24, 8:25 pm, David J.da...@styleflare.com wrote: I was wondering how I can update 2 targets with reponse.js? I tried this response.js = 'web2py_component(url,target);web2py_component(other_url,other_target);' Seems only the first updated. Any ideas?
[web2py] Re: celery integration?
Hello Pankaj, There is nothing Django specific in Celery. You can use it with web2py. The only thing missing are examples on how to do so. Integration with DAL my require a little more work but not too much since DAL is easy to use without web2py. I will add this to my todo list. Massimo On May 25, 6:26 am, Pankaj More(BlankVerse) pankajm...@gmail.com wrote: Is there any python module similar to django-celery for web2py? Is it possible to use celery in web2py without a rabbitMQ backend similar to django-kambu using perhaps DAL instead of SQLAlchemy?
[web2py] Re: Problem storing Storage objects in sessions
I do have a script that runs every day, but I don't think that is the problem because it doesn't touch sessions. In the application itself, one of the things I store in is a list of URL objects in the session. Every time a user logs in, the menu is generated based on that user's permissions an stored in the session. This isn't usually a problem until about the time the session expires. You get the error the next time it asks you to log in. And for some reason, restarting web2py fixes the problem. I am still trying to determine if it's something application specific, but I haven't found anything yet.
[web2py] Re: Trouble updating with SQLFORM.factory and two tables
You were right, that was a stupid mistake on my part. However, it still
isn't working. This is the new select() command, but I still get the
previous error:
row = db((db.auth_user_extended.auth_user==db.auth_user.id)
(db.auth_user.id==id)).select().first()
The model for the field that is giving me the error is created like this:
Field('barcode_id', length=12, notnull=True, requires=IS_NOT_IN_DB(db,
'auth_user_extended.barcode_id'))
And form.accepts() fails with value already in database or empty.
[web2py] local import function name syntax
Hello, I start to put in modules the functions I need to use in more then one controller... I would like to know if I still need to use the double underscore at the begining of the function name to prevent it to be used as a controller function? Could it be a good idea to use the underscores to make it clear that those function are not controller function (or page function)? Thanks Richard
[web2py] Add a decorator @security.xssprevention ?
It could be a good idea to add a decorator to escape all requested
variables to avoid xss no ?
Actually I do :
In controller :
xss = local_import('xss')
def new_widget():
can_modify()
# Xss
prevention
for req in request.vars:
request.vars[req] = xss.xssescape(request.vars[req])
[...]
In modules/xss.py :
http://pastie.org/1971510
Re: [web2py] trunk - missing 'reset_password' in Auth.__call__ in tools.py
I see the change is already in trunk, I've tested it and it now works ok ... thanks!
[web2py] Re: script to clone a database
Massimo, this is awesome, thanks!:) I wrapped the contents of your main() in a function (used in script, not web) where i can pass in these args: model=None - if not None, points to a model. This will re-write the model used in script in the webApp/applications/models dir (db.py) - this lets me share the db between script and webApp seamlessly :) otherDB=None- name the DB, or default to 'storage.sqlite' dbfolder=None - specify db folder. if None, use current dir clean=False - if True, will delete all tables, db, log (i do this so each build has a fresh new SQLite DB) truncate=False - if True, just truncate, don't delete (i use this as well in some places, but now makes more sense to use along side your script. Thanks again, Mart :) On May 24, 1:39 am, ron_m ron.mco...@gmail.com wrote: Great, I was doing this manually, this really helps codify the procedure. The export_to_csv_file and import_from_csv_file routines are the magic with how they fix up all the foreign keys to match the new primary key values.
[web2py] Re: Add a decorator @security.xssprevention ?
By default, web2py already escapes all variables rendered in views to
prevent XSS -- what additional protection does this provide?
On Wednesday, May 25, 2011 10:32:30 AM UTC-4, Alexandre Strzelewicz wrote:
It could be a good idea to add a decorator to escape all requested
variables to avoid xss no ?
Actually I do :
In controller :
xss = local_import('xss')
def new_widget():
can_modify()
# Xss
prevention
for req in request.vars:
request.vars[req] = xss.xssescape(request.vars[req])
[...]
In modules/xss.py :
http://pastie.org/1971510
Re: [web2py] local import function name syntax
You shouldn't need to worry about underscores in your module function names. Also, note that even in a controller file, any function that takes arguments will not be exposed as a URL-accessible action, even if it does not start with two underscores. See http://web2py.com/book/default/chapter/04#Dispatching. On Wednesday, May 25, 2011 9:53:44 AM UTC-4, Richard wrote: Hello, I start to put in modules the functions I need to use in more then one controller... I would like to know if I still need to use the double underscore at the begining of the function name to prevent it to be used as a controller function? Could it be a good idea to use the underscores to make it clear that those function are not controller function (or page function)? Thanks Richard
[web2py] Re: trunk - missing 'reset_password' in Auth.__call__ in tools.py
Thanks for reporting the problem. On May 25, 9:38 am, Carlos carlosgali...@gmail.com wrote: I see the change is already in trunk, I've tested it and it now works ok ... thanks!
[web2py] Re: Add a decorator @security.xssprevention ?
For ajax queries
On May 25, 4:58 pm, Anthony abasta...@gmail.com wrote:
By default, web2py already escapes all variables rendered in views to
prevent XSS -- what additional protection does this provide?
On Wednesday, May 25, 2011 10:32:30 AM UTC-4, Alexandre Strzelewicz wrote:
It could be a good idea to add a decorator to escape all requested
variables to avoid xss no ?
Actually I do :
In controller :
xss = local_import('xss')
def new_widget():
can_modify()
# Xss
prevention
for req in request.vars:
request.vars[req] = xss.xssescape(request.vars[req])
[...]
In modules/xss.py :
http://pastie.org/1971510
[web2py] Re: script to clone a database
If you can make the script user optparse, would you mail it to me? I happy to replace mine with your improved one. On May 25, 9:38 am, mart msenecal...@gmail.com wrote: Massimo, this is awesome, thanks!:) I wrapped the contents of your main() in a function (used in script, not web) where i can pass in these args: model=None - if not None, points to a model. This will re-write the model used in script in the webApp/applications/models dir (db.py) - this lets me share the db between script and webApp seamlessly :) otherDB=None - name the DB, or default to 'storage.sqlite' dbfolder=None - specify db folder. if None, use current dir clean=False - if True, will delete all tables, db, log (i do this so each build has a fresh new SQLite DB) truncate=False - if True, just truncate, don't delete (i use this as well in some places, but now makes more sense to use along side your script. Thanks again, Mart :) On May 24, 1:39 am, ron_m ron.mco...@gmail.com wrote: Great, I was doing this manually, this really helps codify the procedure. The export_to_csv_file and import_from_csv_file routines are the magic with how they fix up all the foreign keys to match the new primary key values.
[web2py] Re: Add a decorator @security.xssprevention ?
So this:
xss.xssescape(text)
would be the same as
str(XML(text))
or
from gluon import xmlescape
xmlescape(text)
On May 25, 10:20 am, Alexandre Strzelewicz
strzelewicz.alexan...@gmail.com wrote:
For ajax queries
On May 25, 4:58 pm, Anthony abasta...@gmail.com wrote:
By default, web2py already escapes all variables rendered in views to
prevent XSS -- what additional protection does this provide?
On Wednesday, May 25, 2011 10:32:30 AM UTC-4, Alexandre Strzelewicz wrote:
It could be a good idea to add a decorator to escape all requested
variables to avoid xss no ?
Actually I do :
In controller :
xss = local_import('xss')
def new_widget():
can_modify()
# Xss
prevention
for req in request.vars:
request.vars[req] = xss.xssescape(request.vars[req])
[...]
In modules/xss.py :
http://pastie.org/1971510
[web2py] Re: can't use admin, can't see tickets with localhost google appengine SDK
I run the same version of Ubuntu, no problems with seeing or generating tickets when I don't get it quite right in the code. Check the permissions on the errors directory for you app? The errors in views are from when the Python code runs which is after extend, include and translation of HTML etc. into response.write statements. There should be enough in the content of the generated Python to get you close to the right place in the original view code.
[web2py] Re: Add a decorator @security.xssprevention ?
On Wednesday, May 25, 2011 11:24:12 AM UTC-4, Massimo Di Pierro wrote: So this: xss.xssescape(text) would be the same as str(XML(text)) str(XML(text)) won't escape the text, will it? The __str__ method of an XML object just returns the unaltered text (unless sanitize=True), no? Anthony
[web2py] Re: Add a decorator @security.xssprevention ?
That seems to be true, sanitize defaults to False in the class XML __init__ On May 25, 10:47 am, Anthony abasta...@gmail.com wrote: On Wednesday, May 25, 2011 11:24:12 AM UTC-4, Massimo Di Pierro wrote: So this: xss.xssescape(text) would be the same as str(XML(text)) str(XML(text)) won't escape the text, will it? The __str__ method of an XML object just returns the unaltered text (unless sanitize=True), no? Anthony
[web2py] Re: Add a decorator @security.xssprevention ?
Do not escape:
print str(XML('alink/a'))
alink/a
Remove unsafe tags:
print str(XML('alink/a', sanitize=True))
link
Escape everything:
print xmlescape('alink/a')
lt;agt;linklt;/agt;
On May 25, 10:47 am, Anthony abasta...@gmail.com wrote:
On Wednesday, May 25, 2011 11:24:12 AM UTC-4, Massimo Di Pierro wrote:
So this:
xss.xssescape(text)
would be the same as
str(XML(text))
str(XML(text)) won't escape the text, will it? The __str__ method of an XML
object just returns the unaltered text (unless sanitize=True), no?
Anthony
[web2py] Re: can't use admin, can't see tickets with localhost google appengine SDK
I run 10.04.2 and admin works fine. Are you getting error messages? I have found it's usually quite easy to resolve HTML errors. The traceback usually includes the view file's line number and/or the code listing shows the view file converted into Python which is easy enough to identify.
Re: [web2py] advise needed about best way to reorder fields in form for particular user
I do custom forms for all my forms (http://pricetack.com): http://web2py.com/book/default/chapter/07#Custom-forms
[web2py] advise needed about best way to reorder fields in form for particular user
Hello, I would like to change the order of the field of my forms depending of the user and their access to the information... Mainly I would like to make appear a verification check box at the bottom of all fields when the verify form is showed to the user. There is also the approbation form so that why there is extra field back the verify form for lower autorised access user. I think I can redefine the model in controller as I want?? But not sure how to do it (define all the fields types, etc.)... It could be more wise to use Table Inheritance?? Thanks Richard
[web2py] Re: Trouble updating with SQLFORM.factory and two tables
Try pulling the requires out of the field definition: db.auth_user_extended.barcode_id.requires=IS_NOT_IN_DB(db, 'auth_user_extended.barcode_id') We also might need to see the controller code since working with 2 tables adds complexity.
[web2py] Re: Add a decorator @security.xssprevention ?
In your controllers in the first place, wouldn't another mitigation be
to code defensively by taking request.vars and validating it in the
first place??? Following that policy and then formatting your response
is a way to avoid the problem.
Definitely don't seem like a good idea to be doing:
def action():
return response.vars.whatever
in the first place, especially so in an AJAX query.
On May 25, 10:20 am, Alexandre Strzelewicz
strzelewicz.alexan...@gmail.com wrote:
For ajax queries
On May 25, 4:58 pm, Anthony abasta...@gmail.com wrote:
By default, web2py already escapes all variables rendered in views to
prevent XSS -- what additional protection does this provide?
On Wednesday, May 25, 2011 10:32:30 AM UTC-4, Alexandre Strzelewicz wrote:
It could be a good idea to add a decorator to escape all requested
variables to avoid xss no ?
Actually I do :
In controller :
xss = local_import('xss')
def new_widget():
can_modify()
# Xss
prevention
for req in request.vars:
request.vars[req] = xss.xssescape(request.vars[req])
[...]
In modules/xss.py :
http://pastie.org/1971510
[web2py] Error on startup: No module named DAL
I just finished setup of kubuntu on an old laptop and ported my project to it. However, when I try to start web2py with: python web2py.py --password test I get the error: Traceback (most recent call last): File web2py.py, line 16, in module import gluon.widget File /home/arbie/cvstash/gluon/widget.py, line 24, in module import main File /home/arbie/cvstash/gluon/main.py, line 80, in module from globals import Request, Response, Session File /home/arbie/cvstash/gluon/globals.py, line 18, in module from compileapp import run_view_in File /home/arbie/cvstash/gluon/compileapp.py, line 24, in module from sql import BaseAdapter, SQLDB, SQLField, DAL, Field File /home/arbie/cvstash/gluon/sql.py, line 5, in module from dal import DAL, Field, Table, Query, Set, Expression, Row, Rows, drivers, BaseAdapter, SQLField, SQLTable, SQLXorable, SQLQuery, SQLSet, SQLRows, SQLStorage, SQLDB, GQLDB, SQLALL, SQLCustomType ImportError: No module named dal It has the default python2.7 as well as other needed packages (build- essentials, python-dev). I don´t remember trying to install extra stuff on my other machine just to get web2py running. I searched around and this was never posted before. Any help is appreciated. Thanks!
[web2py] Re: Trouble updating with SQLFORM.factory and two tables
If I remove the requires, then the record updates properly, but the idea is that the barcode id should be unique. So is this a bug? I mean I could do custom validation on the form to ensure the barcode id is unique, but that kind of defeats the purpose of requires.
[web2py] Re: Error on startup: No module named DAL
Can you check that you have gluon/dal.py? If so, what if you replace in file /home/arbie/cvstash/gluon/compileapp.py, line 24, from sql import BaseAdapter, SQLDB, SQLField, DAL, Field with from dal import BaseAdapter, SQLDB, SQLField, DAL, Field Massimo On May 25, 11:36 am, Arbie Samong phek...@gmail.com wrote: I just finished setup of kubuntu on an old laptop and ported my project to it. However, when I try to start web2py with: python web2py.py --password test I get the error: Traceback (most recent call last): File web2py.py, line 16, in module import gluon.widget File /home/arbie/cvstash/gluon/widget.py, line 24, in module import main File /home/arbie/cvstash/gluon/main.py, line 80, in module from globals import Request, Response, Session File /home/arbie/cvstash/gluon/globals.py, line 18, in module from compileapp import run_view_in File /home/arbie/cvstash/gluon/compileapp.py, line 24, in module from sql import BaseAdapter, SQLDB, SQLField, DAL, Field File /home/arbie/cvstash/gluon/sql.py, line 5, in module from dal import DAL, Field, Table, Query, Set, Expression, Row, Rows, drivers, BaseAdapter, SQLField, SQLTable, SQLXorable, SQLQuery, SQLSet, SQLRows, SQLStorage, SQLDB, GQLDB, SQLALL, SQLCustomType ImportError: No module named dal It has the default python2.7 as well as other needed packages (build- essentials, python-dev). I don´t remember trying to install extra stuff on my other machine just to get web2py running. I searched around and this was never posted before. Any help is appreciated. Thanks!
[web2py] 1.96.0 - stable 1.96.1?
I would like to turn 1.96.0 into stable. Is there any open issue I forgot about that is not in google code? Massimo
[web2py] Re: 1.96.0 - stable 1.96.1?
The current trunk version is pretty stable for me. I know there are a few people out there looking forward to the new import functionality. Plus, it's been about a month since the last stable release, so it's probably time :) Though you may want to make a note that it will not work with Python 2.4, so that people still running production web2py systems on Python 2.4 won't get an ugly surprise.
Re: [web2py] advise needed about best way to reorder fields in form for particular user
Hello pbreit, You made that with web2py?! It nice! Thanks to point me the doc... Richard On Wed, May 25, 2011 at 12:18 PM, pbreit pbreitenb...@gmail.com wrote: I do custom forms for all my forms (http://pricetack.com): http://web2py.com/book/default/chapter/07#Custom-forms
Re: [web2py] Re: 1.96.0 - stable 1.96.1?
2011/5/25 Ross Peoples ross.peop...@gmail.com: The current trunk version is pretty stable for me. I know there are a few people out there looking forward to the new import functionality. Plus, it's been about a month since the last stable release, so it's probably time :) Though you may want to make a note that it will not work with Python 2.4, so that people still running production web2py systems on Python 2.4 won't get an ugly surprise. That's a very important issue and you should make it note in capital letters. Also, if there is some workaround to do it work with 2.4 (or what parts will not work) would be important too. Regards.
[web2py] Re: Error on startup: No module named DAL
Oops. I checked on to see if have gluon/dal.py and it isn't there. Must be something wrong during transfer (hmmm dropbox!). I grabbed the latest from trunk and overwritten what I have on the project folder and it was fixed. Thanks for the help and sorry for such noobishness ;-) Thanks, Arbie On May 26, 12:56 am, Massimo Di Pierro massimo.dipie...@gmail.com wrote: Can you check that you have gluon/dal.py? If so, what if you replace in file /home/arbie/cvstash/gluon/compileapp.py, line 24, from sql import BaseAdapter, SQLDB, SQLField, DAL, Field with from dal import BaseAdapter, SQLDB, SQLField, DAL, Field Massimo On May 25, 11:36 am, Arbie Samong phek...@gmail.com wrote: I just finished setup of kubuntu on an old laptop and ported my project to it. However, when I try to start web2py with: python web2py.py --password test I get the error: Traceback (most recent call last): File web2py.py, line 16, in module import gluon.widget File /home/arbie/cvstash/gluon/widget.py, line 24, in module import main File /home/arbie/cvstash/gluon/main.py, line 80, in module from globals import Request, Response, Session File /home/arbie/cvstash/gluon/globals.py, line 18, in module from compileapp import run_view_in File /home/arbie/cvstash/gluon/compileapp.py, line 24, in module from sql import BaseAdapter, SQLDB, SQLField, DAL, Field File /home/arbie/cvstash/gluon/sql.py, line 5, in module from dal import DAL, Field, Table, Query, Set, Expression, Row, Rows, drivers, BaseAdapter, SQLField, SQLTable, SQLXorable, SQLQuery, SQLSet, SQLRows, SQLStorage, SQLDB, GQLDB, SQLALL, SQLCustomType ImportError: No module named dal It has the default python2.7 as well as other needed packages (build- essentials, python-dev). I don´t remember trying to install extra stuff on my other machine just to get web2py running. I searched around and this was never posted before. Any help is appreciated. Thanks!
[web2py] Re: script to clone a database
sure, be glad to :) I can get to it this afternoon. On May 25, 11:21 am, Massimo Di Pierro massimo.dipie...@gmail.com wrote: If you can make the script user optparse, would you mail it to me? I happy to replace mine with your improved one. On May 25, 9:38 am, mart msenecal...@gmail.com wrote: Massimo, this is awesome, thanks!:) I wrapped the contents of your main() in a function (used in script, not web) where i can pass in these args: model=None - if not None, points to a model. This will re-write the model used in script in the webApp/applications/models dir (db.py) - this lets me share the db between script and webApp seamlessly :) otherDB=None - name the DB, or default to 'storage.sqlite' dbfolder=None - specify db folder. if None, use current dir clean=False - if True, will delete all tables, db, log (i do this so each build has a fresh new SQLite DB) truncate=False - if True, just truncate, don't delete (i use this as well in some places, but now makes more sense to use along side your script. Thanks again, Mart :) On May 24, 1:39 am, ron_m ron.mco...@gmail.com wrote: Great, I was doing this manually, this really helps codify the procedure. The export_to_csv_file and import_from_csv_file routines are the magic with how they fix up all the foreign keys to match the new primary key values.
Re: [web2py] Re: 1.96.0 - stable 1.96.1?
Jose, I learned the hard way that Python 2.4 is no longer supported by web2py and a lot of the new stuff in the trunk requires Python 2.5 or higher. I had submitted several patches to support Python 2.4, but they were rejected because maintaining Python 2.4 support really is a pain, which is why web2py dropped support for it.
[web2py] Re: request.files.append syntax
response.file is what you are looking for, not request. And response.files is simply a list, and append just appends another item to the list. The web2py_ajax.html view is what loops through the list and writes the link and script tags. You might want to just go into your layout.html file and write this element yourself in HTML.
Re: [web2py] Re: 1.96.0 - stable 1.96.1?
2011/5/25 Ross Peoples ross.peop...@gmail.com: Jose, I learned the hard way that Python 2.4 is no longer supported by web2py and a lot of the new stuff in the trunk requires Python 2.5 or higher. I had submitted several patches to support Python 2.4, but they were rejected because maintaining Python 2.4 support really is a pain, which is why web2py dropped support for it. I know it and I'm not using it yet anymore, but there's a lot of CentOs and Debian Etch servers around running 2.4, so I think it would be important to make them notice very clearly that web2py is not going to work with them and, if possible, where it's going to fail with that python version. Because if it starts and a good part of the applications still work, it might hide future errors that should be known for the implementors. It's just a question of ellegance keeping well informed all the web2py users, even if most of us won't have problems as we're using at least 2.5 Regards
[web2py] request.files.append syntax
I can't seem to find where this function is defined, so I can't figure out if it accepts more variables. Specifically, I'm trying to recreate the 'media' descriptor below: link rel=stylesheet type=text/css href=print.css https://teros.gocyber.com/v2/static/css/print.css media=print / Does request.files.append take any more parameters? Or, where can I find it documented? Thanks. -- Andrew Thompson http://aktzero.com/
Re: [web2py] Re: request.files.append syntax
On 5/25/2011 1:41 PM, Ross Peoples wrote: response.file is what you are looking for, not request. And response.files is simply a list, and append just appends another item to the list. The web2py_ajax.html view is what loops through the list and writes the link and script tags. You might want to just go into your layout.html file and write this element yourself in HTML. Whoops! Should have copy/pasted... thought I did... Oh well... Looks like request.files is simpler than I'd hoped, doesn't seem to support any more options. I was trying to avoid hard coding directories into my layout. -- Andrew Thompson http://aktzero.com/
Re: [web2py] Re: 1.96.0 - stable 1.96.1?
Jose, That is understandable. The two incompatibilities with Python 2.4 that I am aware of are: http://code.google.com/p/web2py/issues/detail?id=269can=1q=python%202.4 and http://code.google.com/p/web2py/issues/detail?id=267can=1q=python%202.4 This basically means that using from gluon import * will fail, as will using HMAC passwords in Auth. Since much of web2py has been modified to call from gluon import * internally, this means that the web2py server won't even start under Python 2.4, as issue 267 above (second link) points out. If Python 2.4 support is a must for some people, then these two links include patches that will make most of web2py work, but it would obviously be completely unsupported and future updates would probably render the patches useless. In the interest of keeping everyone informed, I thought it would be good for me to point out my experience with hacking web2py to run under Python 2.4. Regards
Re: [web2py] Re: request.files.append syntax
You could always do something like this in your layout.html:
{{if 'extra_css_files' in response:}}
{{for file, media in response.extra_css_files:}}
link rel=stylesheet type=text/css href={{=file}}
media={{=media}} /
{{pass}}
{{pass}}
Then in your menu.py, you would want to put this in:
response.extra_css_files = {}
And anywhere you want to include your print.css or any other type of CSS
media, you would simply do this:
response.extra_css_files[URL('static', 'css/print.css')] = 'print'
Hardcoding is the easiest method, but if you plan on dynamically loading CSS
based on media, then this would probably be the way to go.
[web2py] Re: Trouble updating with SQLFORM.factory and two tables
I just meant take the requires out of the table definition and put it as a statement below the table. That's how all the examples are in the book: http://web2py.com/book/default/chapter/07#Database-Validators I'm not sure it's the case in this instance or exactly what the issue is but sometimes the requires cannot be placed in the table definition. If it still doesn't work, we need to see some code and a further error trace.
Re: [web2py] Re: 1.96.0 - stable 1.96.1?
Python 2.4 users can also easily use an older version of Web2py.
[web2py] ATTENTION trunk users!!!!
There is a new feature in trunk that needs tests and CAN mess up your database metadata so... 1) remember - user trunk at your own risk 2) it would be great if you could test it but make sure you backup your metadata (databases/*.table) first 3) if you upgrade to trunk please let me know if you encounter any problem with existing apps on upgrade What is the new feature? It changes the format of the databases/ *.table metadata to a more verbose format. Why? Because this will allow to open a database from a script without having to run the models. Web2py will be able to discover the metadata and rebuild the table definitions automatically. This is half done but needs a little more work and testing. Massimo
Re: [web2py] ATTENTION trunk users!!!!
Thanks Massimo; Sounds good; Perhaps you can also let us know when it is safe to pull from Trunk for those using trunk in production. Thanks. David On 5/25/11 2:20 PM, Massimo Di Pierro wrote: There is a new feature in trunk that needs tests and CAN mess up your database metadata so... 1) remember - user trunk at your own risk 2) it would be great if you could test it but make sure you backup your metadata (databases/*.table) first 3) if you upgrade to trunk please let me know if you encounter any problem with existing apps on upgrade What is the new feature? It changes the format of the databases/ *.table metadata to a more verbose format. Why? Because this will allow to open a database from a script without having to run the models. Web2py will be able to discover the metadata and rebuild the table definitions automatically. This is half done but needs a little more work and testing. Massimo
Re: [web2py] ATTENTION trunk users!!!!
I would like to have a 'stable' repository to pull from my production servers (it will remove the need to manage the branches) -- Bruno Rocha [ About me: http://zerp.ly/rochacbruno ] On Wed, May 25, 2011 at 3:20 PM, Massimo Di Pierro massimo.dipie...@gmail.com wrote: There is a new feature in trunk that needs tests and CAN mess up your database metadata so... 1) remember - user trunk at your own risk 2) it would be great if you could test it but make sure you backup your metadata (databases/*.table) first 3) if you upgrade to trunk please let me know if you encounter any problem with existing apps on upgrade What is the new feature? It changes the format of the databases/ *.table metadata to a more verbose format. Why? Because this will allow to open a database from a script without having to run the models. Web2py will be able to discover the metadata and rebuild the table definitions automatically. This is half done but needs a little more work and testing. Massimo
Re: [web2py] ATTENTION trunk users!!!!
a HG repository of course, but, it would be very nice if some could maintain multiple repositories as git,svn, bazaar and hg for automate scripts on production servers. -- Bruno Rocha [ About me: http://zerp.ly/rochacbruno ] On Wed, May 25, 2011 at 3:56 PM, Bruno Rocha rochacbr...@gmail.com wrote: I would like to have a 'stable' repository to pull from my production servers (it will remove the need to manage the branches) -- Bruno Rocha [ About me: http://zerp.ly/rochacbruno ] On Wed, May 25, 2011 at 3:20 PM, Massimo Di Pierro massimo.dipie...@gmail.com wrote: There is a new feature in trunk that needs tests and CAN mess up your database metadata so... 1) remember - user trunk at your own risk 2) it would be great if you could test it but make sure you backup your metadata (databases/*.table) first 3) if you upgrade to trunk please let me know if you encounter any problem with existing apps on upgrade What is the new feature? It changes the format of the databases/ *.table metadata to a more verbose format. Why? Because this will allow to open a database from a script without having to run the models. Web2py will be able to discover the metadata and rebuild the table definitions automatically. This is half done but needs a little more work and testing. Massimo
Re: [web2py] Re: 1.96.0 - stable 1.96.1?
On Wed, May 25, 2011 at 3:08 PM, pbreit pbreitenb...@gmail.com wrote: Python 2.4 users can also easily use an older version of Web2py. Indeed, if you can run older version of Python, you can run older version of web2py!
Re: [web2py] ATTENTION trunk users!!!!
Yeah, since I'm moving into production, I'm getting concerned about bug fixes only going in trunk. I realize managing two branches is tricky but that can't be too far on the horizon.
Re: [web2py] Re: request.files.append syntax
Or heaven forbid:
link rel=stylesheet href={{=URL('static', 'css/blueprint/screen.css')}}
type=text/css media=print
I don't really understand the response.files thing. I guess it's to be able
to specify files elsewhere without modifying web2py_ajax.html?
[web2py] Difference between crud.create and SQLFORM
Hi! First of all... I love web2py framework :-) Problem: I've made modification: http://www.web2pyslices.com/main/slices/take_slice/113 and now if I use: form=crud.create(db.table) everything is ok. But if I use form=SQLFORM(db.table) nothing is happen, any error and any new record. I want ajax form with one field but with crud i have got tape fields which may be populate automaticaly... What is the best sollution? Best Regards, Pawel
[web2py] Re: ATTENTION trunk users!!!!
It is never safe to pull from trunk. ;-) when it is safe I move it to
stable
by the way I added support for circular references:
db.define_table('a',Field('name'),Field('b','reference b'))
db.define_table('b',Field('name'),Field('a','reference a'))
db.define_table('c',Field('name'),Field('c','reference c'))
at the expense of no check for broken reference
db.define_table('a',Field('name'),Field('b','reference d'))
cannot check if the reference if broken since d may or may not be
defined.
will be in trunk later in the day.
On May 25, 1:29 pm, David J. da...@styleflare.com wrote:
Thanks Massimo;
Sounds good;
Perhaps you can also let us know when it is safe to pull from Trunk for
those using trunk in production.
Thanks.
David
On 5/25/11 2:20 PM, Massimo Di Pierro wrote:
There is a new feature in trunk that needs tests and CAN mess up your
database metadata so...
1) remember - user trunk at your own risk
2) it would be great if you could test it but make sure you backup
your metadata (databases/*.table) first
3) if you upgrade to trunk please let me know if you encounter any
problem with existing apps on upgrade
What is the new feature? It changes the format of the databases/
*.table metadata to a more verbose format. Why? Because this will
allow to open a database from a script without having to run the
models. Web2py will be able to discover the metadata and rebuild the
table definitions automatically.
This is half done but needs a little more work and testing.
Massimo
Re: [web2py] Re: ATTENTION trunk users!!!!
Yes; Thats True;
if production == True:
'clone stable'
else:
'good luck buster'
On 5/25/11 3:50 PM, Massimo Di Pierro wrote:
It is never safe to pull from trunk. ;-) when it is safe I move it to
stable
by the way I added support for circular references:
db.define_table('a',Field('name'),Field('b','reference b'))
db.define_table('b',Field('name'),Field('a','reference a'))
db.define_table('c',Field('name'),Field('c','reference c'))
at the expense of no check for broken reference
db.define_table('a',Field('name'),Field('b','reference d'))
cannot check if the reference if broken since d may or may not be
defined.
will be in trunk later in the day.
On May 25, 1:29 pm, David J.da...@styleflare.com wrote:
Thanks Massimo;
Sounds good;
Perhaps you can also let us know when it is safe to pull from Trunk for
those using trunk in production.
Thanks.
David
On 5/25/11 2:20 PM, Massimo Di Pierro wrote:
There is a new feature in trunk that needs tests and CAN mess up your
database metadata so...
1) remember - user trunk at your own risk
2) it would be great if you could test it but make sure you backup
your metadata (databases/*.table) first
3) if you upgrade to trunk please let me know if you encounter any
problem with existing apps on upgrade
What is the new feature? It changes the format of the databases/
*.table metadata to a more verbose format. Why? Because this will
allow to open a database from a script without having to run the
models. Web2py will be able to discover the metadata and rebuild the
table definitions automatically.
This is half done but needs a little more work and testing.
Massimo
Re: [web2py] Re: ATTENTION trunk users!!!!
On Wed, May 25, 2011 at 5:05 PM, David J. da...@styleflare.com wrote: if production == True: 'clone stable' did you mean $hg clone http://code.google... web2py ? managing heads and branches to get stable form repository? or is there a stable hg repository?
Re: [web2py] Re: alias field names
i don't see the reason for this. true, from GAE's docs (http://code.google.com/appengine/articles/storage_breakdown.html): Because App Engine's datastore is essentially schemaless, every entity of a particular kind must store the name of each property in addition to the value, even if every other entity of that kind uses the same set of properties. While this redundancy does result in a slight storage overhead, it also offers more flexibility for model definitions (see Effective PolyModel http://code.google.com/appengine/articles/polymodel.html for an example). i understand saving space on limited hardware, and yes with millions of rows you might have a GB of storage for those names, so that might cost you $0.15 a month, but i believe that cluttering your code with extra things like aliases, and making a database that can't be used without the code (no one would be able to understand the data if viewed in the GAE console), i'd pay the $0.15 a month. just my $0.03. ;) cfh
[web2py] webkit remotedebugger
Who would like to debug their javascript and css live in from web2py. start chrome.exe --remote-debugging-port=9222 Then in another tab that contains the web2py admin open a websocket connection to http://localhost:9222/json you can do things like set breakpoints and other debug tasks, live preview css changes save them back to the file, send server information to the console. Really the possibilities only end with our imaginations. This kind of functionality would make web2py really stand out in rapid app development. The first one to impliment this kind of integration will get some serious visibility. Would anyone be interested in working on this kind of integration with me.I propose we add a debug action in the admin default controller.We start with from the existing webkit inspect. Does any one know if we could start with their bsd licensed code? http://codesearch.google.com/codesearch/p?hl=en#OAMlx_jo-ck/src/third_party/WebKit/Source/WebCore/inspector/front-end/inspector.jsq=inspector%20frontendexact_package=chromiumd=7 Works now on chromes dev and canary channels support is coming to all webkit browsers including mobile(blackberry playbook is first) http://code.google.com/chrome/devtools/docs/remote-debugging.html http://www.youtube.com/watch?v=TH7sJbyXHuk
Re: [web2py] Re: ATTENTION trunk users!!!!
I suspect he meant $hg update R-1.95.1 And, more Pythonic: if production: ...
Re: [web2py] Re: ATTENTION trunk users!!!!
Hey sorry for the delayed response. But if was meant as joke. On May 25, 2011 7:30 PM, pbreit pbreitenb...@gmail.com wrote: I suspect he meant $hg update R-1.95.1 And, more Pythonic: if production: ...
[web2py] Re: ATTENTION trunk users!!!!
I backed up my database, made a copy of the application databases directory, hg pull and hg update on trunk. Got this traceback right away Traceback (most recent call last): File /home/camcentral/Dev/web2py-hg/gluon/restricted.py, line 184, in restricted exec ccode in environment File /home/camcentral/Dev/web2py-hg/applications/ccims/models/A_db.py http://127.0.0.1:8000/admin/default/edit/ccims/models/A_db.py, line 49, in module auth.define_tables(username=True) # creates all needed tables File /home/camcentral/Dev/web2py-hg/gluon/tools.py, line 1148, in define_tables format='%(username)s') File /home/camcentral/Dev/web2py-hg/gluon/dal.py, line 4175, in define_table polymodel=polymodel) File /home/camcentral/Dev/web2py-hg/gluon/dal.py, line 633, in create_table fake_migrate=fake_migrate) File /home/camcentral/Dev/web2py-hg/gluon/dal.py, line 716, in migrate_table if query: UnboundLocalError: local variable 'query' referenced before assignment Did I miss a step? In development I default migrate=True fake_migrate=False Ron
[web2py] Re: ATTENTION trunk users!!!!
query isn't set in the last elif branch before the else
[web2py] Re: ATTENTION trunk users!!!!
I added query = None after line 668 which is the line containing for key in keys: just before the line if not key in sql_fields_old: and got rid of all the query = None statements in the if elif branches plus got rid of the else branch. I am happy to report this allowed the application to run completely without error. I don't use all the features of web2py but then I am sure very few of us do. Ron
[web2py] cache block of content in template rather than codebehind
I'd like to use cache.ram with some chunks of content in my templates,
and I'd rather not have to translate the chunks into the helper
equivalents, e.g. div to DIV(). Is there something like
{{cacheblock}}stuff{{end}}? Should there be?
[web2py] Re: cache block of content in template rather than codebehind
On Wednesday, May 25, 2011 8:15:39 PM UTC-4, Brian Will wrote:
I'd like to use cache.ram with some chunks of content in my templates,
and I'd rather not have to translate the chunks into the helper
equivalents, e.g. div to DIV(). Is there something like
{{cacheblock}}stuff{{end}}? Should there be?
Maybe you could do something like:
{{=cache.ram('cached_view', lambda:
XML(response.render('cacheable_view.html', response._vars)))}}
Or you could do the caching in the controller and just return the string to
the view.
Anthony
[web2py] Re: ATTENTION trunk users!!!!
Did anybody try with mysql? Massimo On May 25, 7:09 pm, ron_m ron.mco...@gmail.com wrote: I added query = None after line 668 which is the line containing for key in keys: just before the line if not key in sql_fields_old: and got rid of all the query = None statements in the if elif branches plus got rid of the else branch. I am happy to report this allowed the application to run completely without error. I don't use all the features of web2py but then I am sure very few of us do. Ron
[web2py] Re: ATTENTION trunk users!!!!
I'm using MySQL and I just updated. All of the *.table files updated and the my app seems to be running okay so far. Matt On May 25, 7:32 pm, Massimo Di Pierro massimo.dipie...@gmail.com wrote: Did anybody try with mysql? Massimo On May 25, 7:09 pm, ron_m ron.mco...@gmail.com wrote: I added query = None after line 668 which is the line containing for key in keys: just before the line if not key in sql_fields_old: and got rid of all the query = None statements in the if elif branches plus got rid of the else branch. I am happy to report this allowed the application to run completely without error. I don't use all the features of web2py but then I am sure very few of us do. Ron
[web2py] experimental in trunk...
now you can do, from ANY python program
from gluon import DAL
db=DAL('sqlite://storage.sqlite',folder='applications/app/
databases',auto_import=True)
print db.tables
auto_import = True will rebuild all tables WITHOUT executing the
modules. Tables will have the right names, field names and field types
but will not have the right attributes (default, widget, readable,
writable, etc...) because they make no sense without an HTTP request.
This is only thought to allow a script to perform inserts and selects.
CAVEAT: this requires you run the app at least once using the new
trunk code since requires the new metadata format. By running the app
the *.table files are automatically converted to the new format.
Give it a try. Let me know if you have ideas for improvements.
Massimo
P.S. More stuff coming soon. ;-)
[web2py] Re: ATTENTION trunk users!!!!
:-) good. If the app starts than your metadata is correct. On May 25, 8:41 pm, mattgorecki m...@goelephant.com wrote: I'm using MySQL and I just updated. All of the *.table files updated and the my app seems to be running okay so far. Matt On May 25, 7:32 pm, Massimo Di Pierro massimo.dipie...@gmail.com wrote: Did anybody try with mysql? Massimo On May 25, 7:09 pm, ron_m ron.mco...@gmail.com wrote: I added query = None after line 668 which is the line containing for key in keys: just before the line if not key in sql_fields_old: and got rid of all the query = None statements in the if elif branches plus got rid of the else branch. I am happy to report this allowed the application to run completely without error. I don't use all the features of web2py but then I am sure very few of us do. Ron
[web2py] field default lambdas being executed always?
Hi,
Why are field default lambdas being executed always (as part of
define_table)?.
* Example:
def xdefault(v):
print '= VALUE %s' % v
return v
db.define_table(
'xtable',
Field('xfield1', default=lambda: xdefault('v1')),
Field('xfield2', default=lambda: xdefault('v2')),
Field('xfield3', default=lambda: xdefault('v3')),
)
* Output:
= VALUE v1
= VALUE v2
= VALUE v3
* Stack trace for one of them:
File C:\web2py\gluon\dal.py in define_table at line 4156
self._adapter.create_table(t,migrate=migrate,fake_migrate=fake_migrate,polymodel=polymodel)
File C:\web2py\gluon\dal.py in create_table at line 551
not_null = self.NOT_NULL(field.default,field.type)
File C:\web2py\gluon\dal.py in NOT_NULL at line 750
return 'NOT NULL DEFAULT %s' % self.represent(default,field_type)
File C:\web2py\gluon\dal.py in represent at line 1200
obj = obj()
File C:\web2py\applications\test\models\db.py in lambda at line 88
... Field('xfield', default=lambda: xdefault('= VALUE =')),
...
File C:\web2py\applications\test\models\db.py in xdefault at line 83
I thought it was safe to put lambdas as field default values with the
certainty that they won't be executed unless / until absolutely required
(when new instances of the table are created without such default values),
i.e. deferred execution.
Is this the expected behavior?.
p.s. I'm using trunk.
Thanks,
Carlos
[web2py] Re: experimental in trunk...
In order to do
from gluon import DAL
from an external program, I would need to add gluon to my Python path,
correct? What directory does gluon live in?
Matt
On May 25, 7:43 pm, Massimo Di Pierro massimo.dipie...@gmail.com
wrote:
now you can do, from ANY python program
from gluon import DAL
db=DAL('sqlite://storage.sqlite',folder='applications/app/
databases',auto_import=True)
print db.tables
auto_import = True will rebuild all tables WITHOUT executing the
modules. Tables will have the right names, field names and field types
but will not have the right attributes (default, widget, readable,
writable, etc...) because they make no sense without an HTTP request.
This is only thought to allow a script to perform inserts and selects.
CAVEAT: this requires you run the app at least once using the new
trunk code since requires the new metadata format. By running the app
the *.table files are automatically converted to the new format.
Give it a try. Let me know if you have ideas for improvements.
Massimo
P.S. More stuff coming soon. ;-)
[web2py] Re: experimental in trunk...
import sys; sys.path.append('/path/to/web2py')
On May 25, 8:53 pm, mattgorecki m...@goelephant.com wrote:
In order to do
from gluon import DAL
from an external program, I would need to add gluon to my Python path,
correct? What directory does gluon live in?
Matt
On May 25, 7:43 pm, Massimo Di Pierro massimo.dipie...@gmail.com
wrote:
now you can do, from ANY python program
from gluon import DAL
db=DAL('sqlite://storage.sqlite',folder='applications/app/
databases',auto_import=True)
print db.tables
auto_import = True will rebuild all tables WITHOUT executing the
modules. Tables will have the right names, field names and field types
but will not have the right attributes (default, widget, readable,
writable, etc...) because they make no sense without an HTTP request.
This is only thought to allow a script to perform inserts and selects.
CAVEAT: this requires you run the app at least once using the new
trunk code since requires the new metadata format. By running the app
the *.table files are automatically converted to the new format.
Give it a try. Let me know if you have ideas for improvements.
Massimo
P.S. More stuff coming soon. ;-)
Re: [web2py] experimental in trunk...
Cool feature! Thanks. I am now planning to use it for a task queue based in
ActiveMQ.
web2py tagline is really 'improvements on every two weeks, or less'
--
Bruno Rocha
[ About me: http://zerp.ly/rochacbruno ]
On Wed, May 25, 2011 at 10:43 PM, Massimo Di Pierro
massimo.dipie...@gmail.com wrote:
now you can do, from ANY python program
from gluon import DAL
db=DAL('sqlite://storage.sqlite',folder='applications/app/
databases',auto_import=True)
print db.tables
auto_import = True will rebuild all tables WITHOUT executing the
modules. Tables will have the right names, field names and field types
but will not have the right attributes (default, widget, readable,
writable, etc...) because they make no sense without an HTTP request.
This is only thought to allow a script to perform inserts and selects.
CAVEAT: this requires you run the app at least once using the new
trunk code since requires the new metadata format. By running the app
the *.table files are automatically converted to the new format.
Give it a try. Let me know if you have ideas for improvements.
Massimo
P.S. More stuff coming soon. ;-)
[web2py] Re: field default lambdas being executed always?
Fixed. It was the migration trying to figure out the default in NOT
NULL define tables.
On May 25, 8:48 pm, Carlos carlosgali...@gmail.com wrote:
Hi,
Why are field default lambdas being executed always (as part of
define_table)?.
* Example:
def xdefault(v):
print '= VALUE %s' % v
return v
db.define_table(
'xtable',
Field('xfield1', default=lambda: xdefault('v1')),
Field('xfield2', default=lambda: xdefault('v2')),
Field('xfield3', default=lambda: xdefault('v3')),
)
* Output:
= VALUE v1
= VALUE v2
= VALUE v3
* Stack trace for one of them:
File C:\web2py\gluon\dal.py in define_table at line 4156
self._adapter.create_table(t,migrate=migrate,fake_migrate=fake_migrate,poly
model=polymodel)
File C:\web2py\gluon\dal.py in create_table at line 551
not_null = self.NOT_NULL(field.default,field.type)
File C:\web2py\gluon\dal.py in NOT_NULL at line 750
return 'NOT NULL DEFAULT %s' % self.represent(default,field_type)
File C:\web2py\gluon\dal.py in represent at line 1200
obj = obj()
File C:\web2py\applications\test\models\db.py in lambda at line 88
... Field('xfield', default=lambda: xdefault('= VALUE =')),
...
File C:\web2py\applications\test\models\db.py in xdefault at line 83
I thought it was safe to put lambdas as field default values with the
certainty that they won't be executed unless / until absolutely required
(when new instances of the table are created without such default values),
i.e. deferred execution.
Is this the expected behavior?.
p.s. I'm using trunk.
Thanks,
Carlos
[web2py] Re: experimental in trunk...
if you want to be light weight, you could also make a copy of dal.py
and put it anywhere it could be referenced, maybe same folder if you
want.
then you can simply have this import
from dal import DAL
from dal import Field
or in a folder structure that can be seen as a package by your script
then you would simply do
from folder1.folder2.dal import DAL
from folder1.folder2.dal import Field
Mart :)
On May 25, 10:09 pm, Bruno Rocha rochacbr...@gmail.com wrote:
Cool feature! Thanks. I am now planning to use it for a task queue based in
ActiveMQ.
web2py tagline is really 'improvements on every two weeks, or less'
--
Bruno Rocha
[ About me:http://zerp.ly/rochacbruno]
On Wed, May 25, 2011 at 10:43 PM, Massimo Di Pierro
massimo.dipie...@gmail.com wrote:
now you can do, from ANY python program
from gluon import DAL
db=DAL('sqlite://storage.sqlite',folder='applications/app/
databases',auto_import=True)
print db.tables
auto_import = True will rebuild all tables WITHOUT executing the
modules. Tables will have the right names, field names and field types
but will not have the right attributes (default, widget, readable,
writable, etc...) because they make no sense without an HTTP request.
This is only thought to allow a script to perform inserts and selects.
CAVEAT: this requires you run the app at least once using the new
trunk code since requires the new metadata format. By running the app
the *.table files are automatically converted to the new format.
Give it a try. Let me know if you have ideas for improvements.
Massimo
P.S. More stuff coming soon. ;-)
[web2py] Virtual fields and with_alias error
I am getting an exception raised when I combine virtual fields and aliases.
Here is an example that produces the error. The example may not have
practical use. It is used for illustration only.
# In models/db.py
db.define_table('person',
Field('first_name'),
Field('last_name'))
db.define_table('couple',
Field('husband_id',
requires=IS_IN_DB(db, 'person.id', '%(first_name)s')),
Field('wife_id',
requires=IS_IN_DB(db, 'person.id', '%(first_name)s')
))
class PersonVirtFields(object):
def name(self):
return %s %s % (self.person.first_name, self.person.last_name)
db.person.virtualfields.append(PersonVirtFields())
# In controller
def index():
husband = db.person.with_alias('husband')
rows = db(db.couple.id0).select( husband.first_name,
left=husband.on(husband.id==db.couple.husband_id))
return dict(rows=rows)
The exception is:
AttributeError: 'PersonVirtFields' object has no attribute 'person'
I can avoid the exception if I change the line in the PersonVirtFields name
method to:
return %s %s % (self.husband.first_name, self.husband.last_name)
The virtual class appears to be receiving the table name as per its alias.
Is this a bug or is that expected behaviour?
Regards,
Jim Karsten
[web2py] Re: experimental in trunk...
I've got a working DAL connection that I can SELECT from. I'm running
into a problem with an update like so:
db(db.feed.id == f.id).update(last_update=now)
The row isn't updating and I'm not getting any errors. db._lastsql
shows this: UPDATE feed SET last_update='2011-05-25 20:40:56' WHERE
(feed.id = 1); Which updates just fine in the MySQL console.
Any suggestions?
Matt
On May 25, 8:21 pm, mart msenecal...@gmail.com wrote:
if you want to be light weight, you could also make a copy of dal.py
and put it anywhere it could be referenced, maybe same folder if you
want.
then you can simply have this import
from dal import DAL
from dal import Field
or in a folder structure that can be seen as a package by your script
then you would simply do
from folder1.folder2.dal import DAL
from folder1.folder2.dal import Field
Mart :)
On May 25, 10:09 pm, Bruno Rocha rochacbr...@gmail.com wrote:
Cool feature! Thanks. I am now planning to use it for a task queue based in
ActiveMQ.
web2py tagline is really 'improvements on every two weeks, or less'
--
Bruno Rocha
[ About me:http://zerp.ly/rochacbruno]
On Wed, May 25, 2011 at 10:43 PM, Massimo Di Pierro
massimo.dipie...@gmail.com wrote:
now you can do, from ANY python program
from gluon import DAL
db=DAL('sqlite://storage.sqlite',folder='applications/app/
databases',auto_import=True)
print db.tables
auto_import = True will rebuild all tables WITHOUT executing the
modules. Tables will have the right names, field names and field types
but will not have the right attributes (default, widget, readable,
writable, etc...) because they make no sense without an HTTP request.
This is only thought to allow a script to perform inserts and selects.
CAVEAT: this requires you run the app at least once using the new
trunk code since requires the new metadata format. By running the app
the *.table files are automatically converted to the new format.
Give it a try. Let me know if you have ideas for improvements.
Massimo
P.S. More stuff coming soon. ;-)
Re: [web2py] Re: experimental in trunk...
Any suggestions? Matt Are you commiting? db.commit() is necessary when out of web2py env
[web2py] easier auth customization in trunk
Now you can do this:
auth.settings.extra_fields['auth_user']=(Field('address'),Field('country'),auth.signature)
auth.define_tables()
I do not think it needs any additional explanation.
[web2py] Re: experimental in trunk...
Thank you, sir. That works a bit better. Matt On May 25, 8:49 pm, Bruno Rocha rochacbr...@gmail.com wrote: Any suggestions? Matt Are you commiting? db.commit() is necessary when out of web2py env
Re: [web2py] Re: alias field names
Currently the datastore is at 1.3GB and costs next to nothing, so normally I wouldn't care. But this project is for a client who doesn't want to enable billing so I am trying every optimization I can find. On Thu, May 26, 2011 at 7:16 AM, howesc how...@umich.edu wrote: i don't see the reason for this. true, from GAE's docs ( http://code.google.com/appengine/articles/storage_breakdown.html): Because App Engine's datastore is essentially schemaless, every entity of a particular kind must store the name of each property in addition to the value, even if every other entity of that kind uses the same set of properties. While this redundancy does result in a slight storage overhead, it also offers more flexibility for model definitions (see Effective PolyModel http://code.google.com/appengine/articles/polymodel.html for an example). i understand saving space on limited hardware, and yes with millions of rows you might have a GB of storage for those names, so that might cost you $0.15 a month, but i believe that cluttering your code with extra things like aliases, and making a database that can't be used without the code (no one would be able to understand the data if viewed in the GAE console), i'd pay the $0.15 a month. just my $0.03. ;) cfh
[web2py] Re: field default lambdas being executed always?
great - thanks!
[web2py] error @ trunk - NoneType object has no attribute Table
Hi,
I'm getting the following error @ trunk ...
web2py™ Version 1.96.0 (2011-05-25 21:52:16)
Python Python 2.6.4: C:\Python26\python.exe
Traceback
Traceback (most recent call last):
File C:\web2py\gluon\restricted.py, line 184, in restricted
exec ccode in environment
File C:/web2py/applications/test/models/db.py, line 33, in module
auth = Auth(db)#
authentication/authorization
File C:\web2py\gluon\tools.py, line 1014, in __init__
self.signature = db.Table(self.db,'auth_signature',
AttributeError: 'NoneType' object has no attribute 'Table'
Error snapshot help Detailed traceback description
type 'exceptions.AttributeError'('NoneType' object has no attribute
'Table')
Thanks,
Carlos
[web2py] experimental in trunk... common_fields and precints
There are two more features in trunk that I could use some testing
with (common fields and precints)
Imagine you have created an app school designed to manage one
school. It has one database and many tables. You wrote it with one
school in mind. Now you want to turn it into a service so that
multiple schools can register and use it. You want to identify the
school for example by the url http://harvard.anyschool.org and each
school should ONLY see its own users, groups, records, etc. etc.
Before today to do this you would have to rewrite all your tables and
queries.
Today you can do it without changing your code at all. You just have
to add this line after db=DAL(...)
db._common_fields=[Field('request_precinct',default=request.env.http_host,writable=False,readable=False)]
Yes. That is it!
How does it work?
1) db._common_fields is a list of fields that you want to add to all
tables.
2) The field called 'request_precinct' is special. Every query
involving a table having this field is automatically filtered byfield
value == field default. In our example the default is
request.env.http_host, i.e. the hostname in the http request which
identifies the school.
3) The field is hidden (writable=False,readable=False) but has a
default therefore it is automatically set for all inserts.
There is nothing special about schools here. You can use it with any
other app.
Give it a try and let me know.
I could use some help in writing some documentation about the new
features added today. ;-)
Massimo
[web2py] Re: error @ trunk - NoneType object has no attribute Table
just fixed it. Thanks for reporting.
On May 25, 10:27 pm, Carlos carlosgali...@gmail.com wrote:
Hi,
I'm getting the following error @ trunk ...
web2py™ Version 1.96.0 (2011-05-25 21:52:16)
Python Python 2.6.4: C:\Python26\python.exe
Traceback
Traceback (most recent call last):
File C:\web2py\gluon\restricted.py, line 184, in restricted
exec ccode in environment
File C:/web2py/applications/test/models/db.py, line 33, in module
auth = Auth(db) #
authentication/authorization
File C:\web2py\gluon\tools.py, line 1014, in __init__
self.signature = db.Table(self.db,'auth_signature',
AttributeError: 'NoneType' object has no attribute 'Table'
Error snapshot help Detailed traceback description
type 'exceptions.AttributeError'('NoneType' object has no attribute
'Table')
Thanks,
Carlos
[web2py] Re: Virtual fields and with_alias error
I think it is a bug. Please open a ticket.
On May 25, 9:23 pm, Jim Karsten iiijjj...@gmail.com wrote:
I am getting an exception raised when I combine virtual fields and aliases.
Here is an example that produces the error. The example may not have
practical use. It is used for illustration only.
# In models/db.py
db.define_table('person',
Field('first_name'),
Field('last_name'))
db.define_table('couple',
Field('husband_id',
requires=IS_IN_DB(db, 'person.id', '%(first_name)s')),
Field('wife_id',
requires=IS_IN_DB(db, 'person.id', '%(first_name)s')
))
class PersonVirtFields(object):
def name(self):
return %s %s % (self.person.first_name, self.person.last_name)
db.person.virtualfields.append(PersonVirtFields())
# In controller
def index():
husband = db.person.with_alias('husband')
rows = db(db.couple.id0).select( husband.first_name,
left=husband.on(husband.id==db.couple.husband_id))
return dict(rows=rows)
The exception is:
AttributeError: 'PersonVirtFields' object has no attribute 'person'
I can avoid the exception if I change the line in the PersonVirtFields name
method to:
return %s %s % (self.husband.first_name, self.husband.last_name)
The virtual class appears to be receiving the table name as per its alias.
Is this a bug or is that expected behaviour?
Regards,
Jim Karsten
[web2py] Re: experimental in trunk... common_fields and precints
So in this example request_precinct would equal harvard.anyschool.org?
Matt
On May 25, 9:47 pm, Massimo Di Pierro massimo.dipie...@gmail.com
wrote:
There are two more features in trunk that I could use some testing
with (common fields and precints)
Imagine you have created an app school designed to manage one
school. It has one database and many tables. You wrote it with one
school in mind. Now you want to turn it into a service so that
multiple schools can register and use it. You want to identify the
school for example by the urlhttp://harvard.anyschool.organd each
school should ONLY see its own users, groups, records, etc. etc.
Before today to do this you would have to rewrite all your tables and
queries.
Today you can do it without changing your code at all. You just have
to add this line after db=DAL(...)
db._common_fields=[Field('request_precinct',default=request.env.http_host,writable=False,readable=False)]
Yes. That is it!
How does it work?
1) db._common_fields is a list of fields that you want to add to all
tables.
2) The field called 'request_precinct' is special. Every query
involving a table having this field is automatically filtered byfield
value == field default. In our example the default is
request.env.http_host, i.e. the hostname in the http request which
identifies the school.
3) The field is hidden (writable=False,readable=False) but has a
default therefore it is automatically set for all inserts.
There is nothing special about schools here. You can use it with any
other app.
Give it a try and let me know.
I could use some help in writing some documentation about the new
features added today. ;-)
Massimo
[web2py] Re: can't use admin, can't see tickets with localhost google appengine SDK
In reply to your and ron_m's messages: On Ubuntu 10.04.02 with python 2.6.5, When I have a simple error in my python controller (say, return dict(ans=ans) , where ans hasn't been defined), if I run python web2py.py : I first get the web-browser error: Internal error Ticket issued: welcome/ 127.0.0.1.2011-05-26.04-31-29.b6c7d52d-b576-406b-ba3d-74308226e85b and clicking on the ticket opens another tab with another Internal error ticket (ad infinitum if I keep on clicking) invalid request I also don't see any messages on the terminal where I ran web2py.py. If I run the gae with python dev_appserver.py ../web2py/ I first get an Internal error ticket, and if I click on it, I get a new tab with invalid request (and no link). At least with the GAE I can see the error traceback in the shell running the server! Permissions are: drwxrwxr-x 2 zb zb 4.0K 2011-05-25 21:27 errors/ and in errors/ -rw-r--r-- 1 zb zb 87K 2011-05-25 21:27 127.0.0.1.2011-05-25.21-27-52.12358da4-3e47-461b-9fae-fd190aebfb65 which seems to be OK for viewing So it's still a mystery why I don't get web tickets and admin! (Note: I am at least missing the Tk library, because I get a warning when I run web2py.py: WARNING:web2py:GUI not available because Tk library is not installed -- does not seem that has anything to do with it, though, other than being an indication that I don't technically have everything that web2py needs, which oddly enough I did have on my old debian system!) Thank you, pbreit and ron_m for your help and advice!!! Luis. On May 25, 9:03 am, pbreit pbreitenb...@gmail.com wrote: I run 10.04.2 and admin works fine. Are you getting error messages? I have found it's usually quite easy to resolve HTML errors. The traceback usually includes the view file's line number and/or the code listing shows the view file converted into Python which is easy enough to identify.
[web2py] Re: can't use admin, can't see tickets with localhost google appengine SDK
Are you running on Mac, Windows or Linux? Here's the command I run on Mac: python web2py.py -a recycle -i 127.0.0.1 -p 8001' If you are running from command line you don't even use Tk. Are you using one of the binaries or the source code (I prefer source)? Have you tried re-installing?
[web2py] Re: can't use admin, can't see tickets with localhost google appengine SDK
Looks like you get a ticket trying to display the application error ticket. I had that once but I was debugging something in trunk that was broken at the time. You mentioned you have a fully and properly working debain version. I believe it is legit to move the files under errors in your application to the system that works and look at them there using the admin interface. That might help get a handle on it. Also when the admin system gets an error you will find the ticket file under applications/admin/errors. You are using stable from web2py currently 1.95.1? I would be tempted to download the zip file, unpack it and slide it into place where the existing one is now after you rename the top directory of the old one. Then you can run a diff to see if something got changed somehow. Is there a requirement to run GAE on python 2.5? What version of Python is on your debian system where everything is working? I run standalone or under apache with wsgi on Python 2.6.5 without issues. Have a look at web2py/scripts/setup-web2py-ubuntu.sh and you can see the packages that get loaded in there. I wouldn't load in matplotlib or reportlab unless you need them. Ron
