[web2py] Re: Bootstrap and custom forms and widgets
Brilliant thanks for that.
Matt
On Sunday, 13 May 2012 15:53:19 UTC+12, Anthony wrote:
http://web2py.com/books/default/chapter/29/7#Hide-errors
Anthony
On Saturday, May 12, 2012 11:35:52 PM UTC-4, Matt wrote:
Hi Everybody,
I'm using bootstrap for a project with web2py.
I want to create forms that mirror the standard approach taken by the
bootstrap framework.
They wrap each control like so:
div class=control-group error
label class=control-label for=inputErrorInput with
error/label
div class=controls
input type=text id=inputError
span class=help-inlinePlease correct the error/span
p class=help-blockA comment for the field goes here./p
/div
/div
Since this is custom code I using form.custom and form.fields for output
the HTML myself.
One small problem I've run up against in that when I do the following:
{{= form.custom.widget.full_name }}
If there is a form _error_ the following is output:
input class=invalidinput id=xyz_full_name name=full_name
type=text value=
*div class=error id=full_name__errorplease enter their full
name/div*
*
*
Is there anyway to suppress the div or change it so that it can become
*span class=help-inlineplease enter their full name**/span*
*
*
Instead?
Any help or suggestion for this would be greatly appreciated.
Thanks in advance,
Matt
[web2py] Re: Possible change to SQLFORM
Ok. No worries.
Matt
On Sunday, 13 May 2012 15:51:16 UTC+12, Anthony wrote:
It would be tricky because form.custom.begin is not like the form.custom
widgets, which are just references to HTML helper objects within the form
object (so it's easy to add attributes). It cannot be a helper object
because it only represents the opening form tag, not the complete HTML
form element (which would include the closing tag and all the contents
within).
Anthony
On Saturday, May 12, 2012 11:37:23 PM UTC-4, Matt wrote:
Hi there,
Potential change / improvement to SQLFORM.
At present when you do the following:
def user():
form = auth()
form['_class'] = 'mystyle'
return dict(form = form)
user.html
{{= form.custom.begin }}
You get the following output:
form action= enctype=multipart/form-data method=post
Is it possible to amend this so that the class is output also?
Thanks in advance,
Matt
[web2py] error deleting a row if the file uploaded is missing?
Hi All,
I have a table with Field('image1', type='upload', uploadseparate=True,
autodelete=True), If the file uploaded is missing (because deleted by hand
for example) then I would get this error trying to delete a row
db(db.service.id==1).delete()
Traceback (most recent call last):
File console, line 1, in module
File /home/sebas/dev/web2py/peerservices/gluon/dal.py, line 7582, in
delete
self.delete_uploaded_files()
File /home/sebas/dev/web2py/peerservices/gluon/dal.py, line 7643, in
delete_uploaded_files
%s.%s % (items[0], items[1]),
IndexError: list index out of range
Is it working as intended ?
thanks
--
Sebastian E. Ovide
[web2py] db two selects
Hi I got A table for articles on my page wich contains a variable for the date it was submitted and the number of views (content title...) I tried to do a select which gives me the newest five of this table (orderedby=~article.date) Now I want to sort those five by the number of views. I tried it with appending the ordered by with |article.views and with |~article.views but the result is the same I get the newest five sorted by views but with the least views first. I know I could reverse the order with some lines of python code but there must be a simple way to do it.
[web2py] reverse ajax on free hosting like fluxflex / pythonanywhere
Hello list, Would anyone have an idea on how to accomplish reverse ajax (server push) on free hosting like fluxflex/pythonanywhere? If I'm correct, typical comet libraries require special web servers, so that is probably out of the question on typical free hosting sites. For my own education I've implemented a little chat application using a long polling approach, where the server receives a request, and is looping and sleeping until some timeout occurs or until new info is available, but it very quickly uses up all my CPU quotum on e.g. fluxflex (I suspect that a statement like time.sleep(1) is counted as using 1 second of CPU time) Is the only alternative to use GAE with their channel API ? Thanks for any insights you may have.
Re: [web2py] complex query with delete
On 05/13/2012 12:02 AM, Andrew wrote: Does replacing select with delete work? Nope, i got: TypeError: delete() got an unexpected keyword argument 'join' It seems that delete does not accept any argument at all! Yeah. I want to delete from db.keyword If delete was more like select() would be good to do: db((db.keyword.id!=db.users_keywords.keyword_id)(db.keyword.dictionary==dictionary)).delete(db.keyword) Unluckly it doesn't. Maybe it's time to add this kind of feature ? -- Vincenzo Ampolo http://vincenzo-ampolo.net http://goshawknest.wordpress.com
Re: [web2py] Web-framework+db with the widest scalability?
Alec, The database depends on what data you store and serve. It depends on your model. Postgresql is pretty generic and scales (Skype use postgresql). web2py has all the required layers for your requirements and scales: just put nginx in front of scgi, uwsgi, fcgi and use processes not threads. This is true for any framework running on CPython. Flask is good also but you have a little more coding to do. mic Il giorno 12/mag/2012 10:59, Alec Taylor alec.tayl...@gmail.com ha scritto: Disclosure: I have posted this on stackoverflowhttp://stackoverflow.com/q/10562165and comp.lang.pythonhttps://groups.google.com/forum/#%21topic/comp.lang.python/gSAw5mLkUos . I am building a project requiring high performance and scalability, entailing: - Role-based authenticationhttp://en.wikipedia.org/wiki/Role-based_access_controlwith API-keyhttp://en.wikipedia.org/wiki/Application_programming_interface_keylicensing to access data of specific users - API http://en.wikipedia.org/wiki/Application_programming_interfaceexposed with REST http://en.wikipedia.org/wiki/REST (XMLhttp://en.wikipedia.org/wiki/XML, JSON http://en.wikipedia.org/wiki/JSON), XMLRPChttp://en.wikipedia.org/wiki/XMLRPC, JSONRPC http://en.wikipedia.org/wiki/JSONRPC and SOAPhttp://en.wikipedia.org/wiki/SOAP - Easily configurable getters and settershttp://en.wikipedia.org/wiki/Mutator_methodto create APIs accessing the same data but with input/output in different schemas http://en.wikipedia.org/wiki/Database_schema A conservative estimate of the number of tables—often whose queries require joins—is: 20. Which database type—e.g.: NoSQL http://en.wikipedia.org/wiki/NoSQL or DBMS http://en.wikipedia.org/wiki/Database_management_system—key-value data store http://en.wikipedia.org/wiki/Key-value_data_store or object-relational database http://en.wikipedia.org/wiki/Object-relational_database—e.g.: Redis http://en.wikipedia.org/wiki/Redis or PostgreSQLhttp://en.wikipedia.org/wiki/PostgreSQL—and web-framework http://en.wikipedia.org/wiki/Web_application_framework—e.g. Django http://en.wikipedia.org/wiki/Django_%28web_framework%29, Web2Pyhttp://www.web2py.com/or Flask http://flask.pocoo.org/—would you recommend? Thanks for all suggestions
Re: [web2py] complex query with delete
db((db.keyword.id!=db.users_keywords.keyword_id)(db.keyword.dictionary==dictionary)).delete(db.keyword) Exactly what set of records are you trying to delete from db.keyword? Are you trying to identify keywords that are not referenced by any records in db.users_keywords? If so, how about a nested select ( http://web2py.com/books/default/chapter/29/6#belongs): ids = db()._select(db.users_keywords.keyword_id, distinct=True) db((~db.keyword.id.belongs(ids)) (db.keyword.dictionary == dictionary)). delete() Anthony
Re: [web2py] Web-framework+db with the widest scalability?
Thanks, I'll give Postgres a go. Quick semi-related question: have their been benchmark comparisons on recent versions on Django when compared with recent version on web2py? E.g.: for requests per second, processing time etc On Sun, May 13, 2012 at 10:47 PM, Michele Comitini michele.comit...@gmail.com wrote: Alec, The database depends on what data you store and serve. It depends on your model. Postgresql is pretty generic and scales (Skype use postgresql). web2py has all the required layers for your requirements and scales: just put nginx in front of scgi, uwsgi, fcgi and use processes not threads. This is true for any framework running on CPython. Flask is good also but you have a little more coding to do. mic Il giorno 12/mag/2012 10:59, Alec Taylor alec.tayl...@gmail.com ha scritto: Disclosure: I have posted this on stackoverflow and comp.lang.python. I am building a project requiring high performance and scalability, entailing: Role-based authentication with API-key licensing to access data of specific users API exposed with REST (XML, JSON), XMLRPC, JSONRPC and SOAP Easily configurable getters and setters to create APIs accessing the same data but with input/output in different schemas A conservative estimate of the number of tables—often whose queries require joins—is: 20. Which database type—e.g.: NoSQL or DBMS—key-value data store or object-relational database—e.g.: Redis or PostgreSQL—and web-framework—e.g. Django, Web2Py or Flask—would you recommend? Thanks for all suggestions
[web2py] Re: db two selects
orderedby=~db.article.date|~db.article.views should work. Did you try exactly that code? Anthony On Sunday, May 13, 2012 4:43:24 AM UTC-4, BlueShadow wrote: Hi I got A table for articles on my page wich contains a variable for the date it was submitted and the number of views (content title...) I tried to do a select which gives me the newest five of this table (orderedby=~article.date) Now I want to sort those five by the number of views. I tried it with appending the ordered by with |article.views and with |~article.views but the result is the same I get the newest five sorted by views but with the least views first. I know I could reverse the order with some lines of python code but there must be a simple way to do it.
[web2py] Re: db two selects
def index(): rows=db().select(db.article.ALL, orderby=~db.article.submitted|~db. article.views, limitby=(0,5)) return dict(Articles=rows) Thats my code from the default.py removing and adding the second ~ doesn't change anything. in my index.htm I simply print the Titles and views with a for loop. On Sunday, May 13, 2012 3:03:30 PM UTC+2, Anthony wrote: orderedby=~db.article.date|~db.article.views should work. Did you try exactly that code? Anthony On Sunday, May 13, 2012 4:43:24 AM UTC-4, BlueShadow wrote: Hi I got A table for articles on my page wich contains a variable for the date it was submitted and the number of views (content title...) I tried to do a select which gives me the newest five of this table (orderedby=~article.date) Now I want to sort those five by the number of views. I tried it with appending the ordered by with |article.views and with |~article.views but the result is the same I get the newest five sorted by views but with the least views first. I know I could reverse the order with some lines of python code but there must be a simple way to do it.
Re: [web2py] Web-framework+db with the widest scalability?
Quick semi-related question: have their been benchmark comparisons on recent versions on Django when compared with recent version on web2py? I'm not aware of any benchmarks directly comparing Django and web2py. If you were to make a comparison, you would have to be careful to make sure the two frameworks are doing the same work, as they do not both do all the same things by default (for example, in web2py, you would want to turn off database migrations, which are on by default, in order to get a proper comparison). Specifically regarding database operations, you might expect web2py to be a bit faster, as the web2py DAL tends to be faster than ORMs (Django uses an ORM). I haven't seen direct comparison's to the Django ORM, but a couple of benchmarks have shown the web2py DAL to be faster than the SQLAlchemy ORM ( http://web2py.com/AlterEgo/default/show/76, http://static.thadeusb.com/total_time.jpg). Aside from that, I suspect there wouldn't be much difference in performance between the two frameworks (similarly and properly configured). Performance will probably depend more on your application and server architecture and the database. Anthony
[web2py] Re: db two selects
Hmm, I tried a similar query and it properly respects both ~'s. Can you pack and attach a minimal app (using SQLite) that exhibits the problem? Anthony On Sunday, May 13, 2012 9:14:27 AM UTC-4, BlueShadow wrote: def index(): rows=db().select(db.article.ALL, orderby=~db.article.submitted|~db. article.views, limitby=(0,5)) return dict(Articles=rows) Thats my code from the default.py removing and adding the second ~ doesn't change anything. in my index.htm I simply print the Titles and views with a for loop. On Sunday, May 13, 2012 3:03:30 PM UTC+2, Anthony wrote: orderedby=~db.article.date|~db.article.views should work. Did you try exactly that code? Anthony On Sunday, May 13, 2012 4:43:24 AM UTC-4, BlueShadow wrote: Hi I got A table for articles on my page wich contains a variable for the date it was submitted and the number of views (content title...) I tried to do a select which gives me the newest five of this table (orderedby=~article.date) Now I want to sort those five by the number of views. I tried it with appending the ordered by with |article.views and with |~article.views but the result is the same I get the newest five sorted by views but with the least views first. I know I could reverse the order with some lines of python code but there must be a simple way to do it.
Re: [web2py] Web-framework+db with the widest scalability?
On Sun, 13 May 2012 06:21:17 -0700 (PDT), abasta...@gmail.com said: I suspect there wouldn't be much difference in performance between the two frameworks (similarly and properly configured). So long as this is broadly true (which I suspect it is), there are other considerations to take into account. Suppose (unlikely) that Django is 20% faster to run code. You also need to consider which is easier to develop and maintain code. Any web platform, very broadly speaking, can improve its performance by using faster hardware. That's a one-off cost. If you determine that web2py is more efficient to develop and maintain code with, that's a win every time anyone does any development. -- You can have everything in life you want if you help enough other people get what they want - Zig Ziglar. Who did you help today?
[web2py] Common controller functionality
I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)?
Re: [web2py] Common controller functionality
what about using modules ? you can create as many classes as you want and then just use them. On Sun, May 13, 2012 at 5:31 PM, Yarin ykess...@gmail.com wrote: I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)? -- Sebastian E. Ovide
[web2py] Re: Common controller functionality
You can put common controller functionality in the model. This is executed on each request before the controllers. You can check which controller is called in request.controller. On Sunday, 13 May 2012 17:31:22 UTC+1, Yarin wrote: I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)?
[web2py] Re: web2py - form to pass input to matplotlib
i'm looking for a solution, to start to write a web-app to generate graph using
matplotlib
the graph needs to be generated using some inputs parameters coming from the
page itself.
right now i'm rewriting the app from scratch .. but i'm stuck on how to
integrate a query button to the python code ..
essentially what i need to start is :
a page with a line-edit input box + Jquery widget (a simple button, will be
enough to learn more)
then connect the button to execute a generic python code that will use as input
the text in the line-edit
.. the generic python code will process the text received as input and return
the results on the same page where the line-edit and the button are.
i hope my description gives you an idea of what i was looking for
Many thanks for any help!
Massimo.
Il giorno May 11, 2012, alle ore 10:49 AM, Massimo Di Stefano ha scritto:
Hi All,
i'm tring to learn web2py, thanks for the wonderful book and for the really
nice tutorial!
i'm a bit 'stuck' on how to perform a simple task (i guess it is simple)
because of my ignorance.
.. i'm bring to update dynamic a graph-chart (generated with matplotlib)
using a form to pass the input the draw-function.
what i have is a controller :
# template_example.py that 'espone' a function 'variables' , it will display
an image generated by matplotlib using the 'stem_plot' function (in the same
.py file)
# import a lib that generate the data from the url gived as input
from ecoopclimate import Climate
#import some matplotlib methodsm numpy ...
from pylab import stem, setp, grid, savefig, show, gca, subplot,
subplots_adjust
import matplotlib as mpl
import matplotlib.pyplot as plt
import datetime as dt
import numpy as np
# plot function
def stem_plot(data, name):
data[np.isnan(data)]=0
fig = plt.figure()
ax = fig.add_subplot(211)
mindate = int(data[0][0])
maxdate = int(data[0][-1])
date2_1 = dt.datetime(mindate, 1, 1)
date2_2 = dt.datetime(maxdate, 1, 1)
delta2 = dt.timedelta(days=365)
dates2 = mpl.dates.drange(date2_1, date2_2, delta2)
dateFmt = mpl.dates.DateFormatter('%Y')
ax.xaxis.set_major_formatter(dateFmt)
fig.autofmt_xdate(bottom=0.1)
x_p = dates2[np.where(data[1]=0)[0]]
y_p = data[1][np.where(data[1]=0)[0]]
x_n = dates2[np.where(data[1]0)[0]]
y_n = data[1][np.where(data[1]0)[0]]
markerline, stemlines, baseline = stem(x_p, y_p, 'r-')
setp(markerline, 'markerfacecolor', 'b')
setp(baseline, 'color', 'r', 'linewidth', 2)
setp(stemlines, 'linewidth', 1)
markerline, stemlines, baseline = stem(x_n, y_n, 'b-')
setp(markerline, 'markerfacecolor', 'b')
setp(baseline, 'color', 'r', 'linewidth', 2)
setp(stemlines, 'linewidth', 1)
grid()
setp(gca(), 'xlabel', 'Year', 'ylabel', name)
fig = '/Users/epifanio/web2py/applications/welcome/static/'+name+'.png'
dateFmt = mpl.dates.DateFormatter('%Y')
savefig(fig)
return fig
#show()
# function connected to the view : variables.html
def variables():
nao_url =
'https://climatedataguide.ucar.edu/sites/default/files/cas_data_files/asphilli/nao_station_djfm.txt'
clm = Climate()
NAO = clm.nao(nao_url, 'nao.txt')
image = stem_plot(NAO['nao'], 'nao')
return dict(d=URL('static', 'nao.png'))
the view template_example/variables.html is :
{{extend 'layout.html'}}
h1Image generated with matplotlib/h1
img src={{=d}} alt=Red dot /
As you can see from the code in stem_plot it takes as input : 'data' and
'name'
i'm hardcoding the var inside the function 'variables'
i need to modify that code adding a 'form' in the view that will take 2
string as input
nao_url =
'https://climatedataguide.ucar.edu/sites/default/files/cas_data_files/asphilli/nao_station_djfm.txt'
image_name = 'imagename'
and pass this input to the main function that generate the graph.
Have you any hints on how to do that ?
i'd like to have the form in the same page where the image is displayed
so that i can update the image every time i'll resubmit the form.
i'm a beginner, an example that does something like that will be really
helpful :)
Many many Thanks for your help!
Massimo.
[web2py] Re: Common controller functionality
That's what I've already been doing, but making decisions in the model on which code to run based on the request controller turns into a hot mess of distributed logic and violates the most basic principles of MVC (Models knowing about Controllers?) On Sunday, May 13, 2012 1:58:25 PM UTC-4, simon wrote: You can put common controller functionality in the model. This is executed on each request before the controllers. You can check which controller is called in request.controller. On Sunday, 13 May 2012 17:31:22 UTC+1, Yarin wrote: I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)?
[web2py] Online editor in Chrome browser in Dev build
Hi, Does anyone have a scroll problem in online editor in Chrome browser using the dev build? Whenever I open a file in the online editor, and if I try to scroll, it scrolls back to the top in Chrome. It works fine in Firefox. I am using Chrome version 18. Thanks. Hardik Mehta
Re: [web2py] Re: Common controller functionality
in Java (say for example Java EE 6), you would have your own Classes hierarchy (as extended as needed), and then you would inject what you need in your controllers (backing beans)... in web2py you can do exactly the same. Create your own hierarchy of classes (as extended as needed) and then just import the modules that you need in your controllers On Sun, May 13, 2012 at 7:07 PM, Yarin ykess...@gmail.com wrote: That's what I've already been doing, but making decisions in the model on which code to run based on the request controller turns into a hot mess of distributed logic and violates the most basic principles of MVC (Models knowing about Controllers?) On Sunday, May 13, 2012 1:58:25 PM UTC-4, simon wrote: You can put common controller functionality in the model. This is executed on each request before the controllers. You can check which controller is called in request.controller. On Sunday, 13 May 2012 17:31:22 UTC+1, Yarin wrote: I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)? -- Sebastian E. Ovide
[web2py] Re: Common controller functionality
You can put functions in controller files that any other function in the file can call.
[web2py] Re: Integrating error pages in web2py on app engine
my routes on_error used on GAE (collects 400 and 500 errors unless GAE
itself throws the error before web2py gets the request):
routes_onerror = [
('appname/*', '/appname/home/missing.html'),
]
On Friday, May 11, 2012 8:18:11 PM UTC-7, Sushant Taneja wrote:
Yes I did configure the routes_onerror in routes.py
But whenever I entered the URL of the page which does not exist, it would
still return me *invalid request.*
On Saturday, May 12, 2012 8:40:35 AM UTC+5:30, Anthony wrote:
There's no such thing as routers.py -- if using the parameter-based
rewrite system, you still use routes.py. Anyway, did you try adding
routes_onerror to routes.py:
http://web2py.com/books/default/chapter/29/4#Routes-on-error? Note, you
have to restart the app for routes changes to take effect.
Anthony
On Friday, May 11, 2012 11:06:18 PM UTC-4, Sushant Taneja wrote:
Hi All,
I have two static custom errors pages for all 4XX and 5XX error codes.
I want to integrate them with my web2py application which needs to be
deployed on app engine.
I tried playing around with routes.py as well as routers.py but still
couldn't fix the same.
Can anyone please tell me the correct way to achieve the above ?
Thanks and Regards,
Sushant Taneja
Re: [web2py] Re: Common controller functionality
Sebastian- I already have class hierarchies for my model/module stuff. What I'm talking about using classes to handle controller logic- assembling views, controlling access, processing forms, managing redirection, etc - that stuff belongs in controllers, not modules. But the flat, one function-per-controller design means the power of classes can't easily be applied to that stuff. Sure, I could write a controller class hierarchy and pull it into each function, but that seems like a lot of grunt work for what frameworks like kohana and web.py have out of the box with controller classes. PBreit- I'm doing this too, but again, lacks the organization of classes. I'm not saying the web2py way is wrong- I'm sure Massimo has a reason for setting things up this way, as almost everything I've seen is incredibly well thought out- but I just don't see the upside of this approach, and as my project has grown large I've found myself wishing I had controllers I could subclass.. On Sunday, May 13, 2012 2:18:21 PM UTC-4, sebastian wrote: in Java (say for example Java EE 6), you would have your own Classes hierarchy (as extended as needed), and then you would inject what you need in your controllers (backing beans)... in web2py you can do exactly the same. Create your own hierarchy of classes (as extended as needed) and then just import the modules that you need in your controllers On Sun, May 13, 2012 at 7:07 PM, Yarin wrote: That's what I've already been doing, but making decisions in the model on which code to run based on the request controller turns into a hot mess of distributed logic and violates the most basic principles of MVC (Models knowing about Controllers?) On Sunday, May 13, 2012 1:58:25 PM UTC-4, simon wrote: You can put common controller functionality in the model. This is executed on each request before the controllers. You can check which controller is called in request.controller. On Sunday, 13 May 2012 17:31:22 UTC+1, Yarin wrote: I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)? -- Sebastian E. Ovide
[web2py] db two selects
I'm not sure that query will do what you want. I think you need to sort by views separately.
Re: [web2py] Re: Common controller functionality
Yarin, I see... I know what you mean... I had a quick glance into compileapp.py line 555... (I guess that it the right place to look at)... and it looks like that inheritance is not part of it... filename = os.path.join(folder, 'controllers/%s.py' % controller) nevertheless, about *modules*, why do you think that the controller logic doesn't fit in modules ? Modules are just that: modules you can place there anything you want without breaking any layer of your design. I have not done any BIG job with web2py, so we should ask to people whom have done something big to be fair... but I would put under controllers only just that: controllers... as small as possible leaving all the the complex logic in the modules same for the models just those models that you need ALL the time and leave other model in modules (in the right path of course)... well... I'm not saying that this is the best way... just my personal taste ;) On Sun, May 13, 2012 at 8:00 PM, Yarin ykess...@gmail.com wrote: Sebastian- I already have class hierarchies for my model/module stuff. What I'm talking about using classes to handle controller logic- assembling views, controlling access, processing forms, managing redirection, etc - that stuff belongs in controllers, not modules. But the flat, one function-per-controller design means the power of classes can't easily be applied to that stuff. Sure, I could write a controller class hierarchy and pull it into each function, but that seems like a lot of grunt work for what frameworks like kohana and web.py have out of the box with controller classes. PBreit- I'm doing this too, but again, lacks the organization of classes. I'm not saying the web2py way is wrong- I'm sure Massimo has a reason for setting things up this way, as almost everything I've seen is incredibly well thought out- but I just don't see the upside of this approach, and as my project has grown large I've found myself wishing I had controllers I could subclass.. On Sunday, May 13, 2012 2:18:21 PM UTC-4, sebastian wrote: in Java (say for example Java EE 6), you would have your own Classes hierarchy (as extended as needed), and then you would inject what you need in your controllers (backing beans)... in web2py you can do exactly the same. Create your own hierarchy of classes (as extended as needed) and then just import the modules that you need in your controllers On Sun, May 13, 2012 at 7:07 PM, Yarin wrote: That's what I've already been doing, but making decisions in the model on which code to run based on the request controller turns into a hot mess of distributed logic and violates the most basic principles of MVC (Models knowing about Controllers?) On Sunday, May 13, 2012 1:58:25 PM UTC-4, simon wrote: You can put common controller functionality in the model. This is executed on each request before the controllers. You can check which controller is called in request.controller. On Sunday, 13 May 2012 17:31:22 UTC+1, Yarin wrote: I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)? -- Sebastian E. Ovide -- Sebastian E. Ovide
[web2py] empty field
how come i have to test an empty string field within a try|except block like this: try: b = q.create_lecture_foldername!=None except: b = False if b: something instead of the more straight forward: if (q.create_lecture_foldername!=None): something because if i try the previous simpler approach, it blows giving me the error: if (usr.create_lecture_foldername!=None): File /opt/web-apps/web2py/gluon/dal.py, line 3851, in __getattr__ return self[key] File /opt/web-apps/web2py/gluon/dal.py, line 3842, in __getitem__ return dict.__getitem__(self, key) KeyError: 'create_lecture_foldername' same as if i try to use the len() method: if (usr.create_lecture_foldername.len()0): File /opt/web-apps/web2py/gluon/dal.py, line 3851, in __getattr__ return self[key] File /opt/web-apps/web2py/gluon/dal.py, line 3842, in __getitem__ return dict.__getitem__(self, key) KeyError: 'create_lecture_foldername' so isn't there a better way then the try|except block. lucas
[web2py] wysiwyg editor saving ALL in a blob (including pictures)
Hi All, I've read a couple of tutorials (probably from web2py slices) about HTML wysiwyg + images uploading (in separate table) I was just wondering... what if instead of defining a TEXT field and an additional table for storing images we define a BLOB field and we store ALL there HTML + Images (or images names. and images in FS) I don't know if there is any lib around that would do it if not, I guess that using the CKEditor + some web2py logic (probably serializing a dictionary with the text + images) should not be so difficult to create a widget for it... what do you think ? thanks -- Sebastian E. Ovide
Re: [web2py] Re: Nginx-uwsgi problem.
The first numbers to look at are times those are what affect our lives. The number of calls bother just the cpu ;-) 1. time to complete the action 2. cumulative time i.e. where most of the time affecting 1. is spent 3. percall time i.e. to find if there is a function that is really slow 1. is around 0.1s per call 2. most of the time is spent in db.py while it is executed 3. around 40% of the time seems to be spent in 45 define_table calls inside the db.py; around 20% is spent in connecting to postgresql So you need to find a way to work on define table either reducing the number of calls, for instance splitting table definitions so that you define only those needed in the controller actually called. To cut define_table execution time you could try to put migrate=False, fake_migrate=False, when you call the DAL since in production the model does not change (usually) at runtime. Be sure that you have connection pooling active. If you use uwsgi in a process only configuration (no threads) you still need to put pool_size=1 in DAL call to activate pooling. If you use threads... well don't. Other considerations. - The transaction is held for 0.1s which can be long on high concurrent environment. This could affect postgresql in terms of resources and lock management. - The time spent in the execute method of the psycopg adapter is very low, so the query is fast. - The number of web2py processes must be no more than twice the number of cores on the machine and no less than that same number - Check that you use upstream with keepalive in nginx server configuration. mic 2012/5/13 Bruce Wade bruce.w...@gmail.com: Ok so I started it with the profile to be honest need some guidance on how to read this report. But like the one call there is 582,237 function calls that looks pretty insane. Or just loading my home page 85,545 function calls.. The /ad_handler which is called by ajax and only returns None has 54,149 function calls. See attached. If any one would like to explain how to read this. On Sat, May 12, 2012 at 2:41 PM, Bruce Wade bruce.w...@gmail.com wrote: lol, yeah I guess that is my problem with being a C++ coder. But I also seen that 90 tables were loaded with every request ;) On Sat, May 12, 2012 at 1:50 PM, Michele Comitini michele.comit...@gmail.com wrote: I keep saying it but nobody listens :-) USE THE PROFILER You wasting *your* time trying to guess where the application is wasting *its* time. mic 2012/5/12 Anthony abasta...@gmail.com: On Saturday, May 12, 2012 12:06:28 PM UTC-4, Bruce Wade wrote: Yeah I am going through all my controllers right now to see if I can use the folder solution. Which way would be faster? Folders or modules? Well, a model file still has to be read each time it is needed, whereas a module remains in memory after the first time it is imported, so perhaps the module approach would still be a bit faster, but you might run an ab test to confirm (and to see if the difference is non-trivial). Anthony -- -- Regards, Bruce Wade http://ca.linkedin.com/in/brucelwade http://www.wadecybertech.com http://www.fittraineronline.com - Fitness Personal Trainers Online http://www.warplydesigned.com -- -- Regards, Bruce Wade http://ca.linkedin.com/in/brucelwade http://www.wadecybertech.com http://www.fittraineronline.com - Fitness Personal Trainers Online http://www.warplydesigned.com
Re: [web2py] Re: External database query for authentication (RBAC)
You can create a new login_method while keeping the auth tables as usual. The login method will work on the legacy db. The auth table will contain user data in another db, can be sqlite or anything else supported by DAL. Indeed web2py auth tables *do not need to contain secrets*, those can be kept on the legacy db. This is pretty much how all login_methods that delegate authentication to third parties work. If you have more than one application to be managed that way in can be useful to create an authenticator application that does all the work of connecting to the legacy db and do proper authentication, and provide authorization (groups or whatever) info back to the consumer. The other applications can be CAS consumers to the authenticator, the CAS producer, application. mic 2012/5/11 Massimo Di Pierro massimo.dipie...@gmail.com: True. gluon/contrib/login_methods only work with auth. On Thursday, 10 May 2012 22:19:46 UTC-5, w2padawan wrote: so, I think they can't use auth.methods without defining auth tables first (kind of obvious?) 2012/5/10 Massimo Di Pierro massimo.dipie...@gmail.com In the scaffolding app there is a file db.py which defines for you everything you need for RBAC. If you do not want to use this built-in functionality simply delete the file and use your own API. There is nothing that really depends on it. On Thursday, 10 May 2012 08:17:35 UTC-5, BoleroDan wrote: We're looking to use Web2py as our framework for developing a couple applications. However we already have a massive database for our research project, and almost all of the information is integrated into this database (including usernames, passwords, group names etc) so it would be nice to have web2py just access this database for username/password/group membership authentication. I'm hoping this can be integrated into Web2Pys already existing RBAC management as that would be nice. I also noticed that a lot of the other alternative login methods still require web2pys local auth_user table and stores the remote credentials locally in this table. Is this needed by design or can this be skipped? I'm just thinking its not needed for us to have duplicate login information across two databases. I just need Web2py to query our database, get the credentials authenticated and what group they are in (so i can control access to functions on web2py based on their group). Thanks for any heads up on the matter.
Re: [web2py] wysiwyg editor saving ALL in a blob (including pictures)
not quite possible because each image has an url, a single blob field is not enough, except if somehow you will manage to convert all images to base64 at the time of inserting/uploading but even so no need for blob, base64 images are represented as text
Re: [web2py] Re: Common controller functionality
I use /models as a script folder and I always try to avoid the use of this. Controllers are for me only a point of entry, the place where I route and where I got argumuments and I decide about the template rendering. All the rest of logic goes in sub modules, handlers, helpers and datamodels. http://zerp.ly/rochacbruno Em 13/05/2012 17:06, Sebastian E. Ovide sebastian.ov...@gmail.com escreveu: Yarin, I see... I know what you mean... I had a quick glance into compileapp.py line 555... (I guess that it the right place to look at)... and it looks like that inheritance is not part of it... filename = os.path.join(folder, 'controllers/%s.py' % controller) nevertheless, about *modules*, why do you think that the controller logic doesn't fit in modules ? Modules are just that: modules you can place there anything you want without breaking any layer of your design. I have not done any BIG job with web2py, so we should ask to people whom have done something big to be fair... but I would put under controllers only just that: controllers... as small as possible leaving all the the complex logic in the modules same for the models just those models that you need ALL the time and leave other model in modules (in the right path of course)... well... I'm not saying that this is the best way... just my personal taste ;) On Sun, May 13, 2012 at 8:00 PM, Yarin ykess...@gmail.com wrote: Sebastian- I already have class hierarchies for my model/module stuff. What I'm talking about using classes to handle controller logic- assembling views, controlling access, processing forms, managing redirection, etc - that stuff belongs in controllers, not modules. But the flat, one function-per-controller design means the power of classes can't easily be applied to that stuff. Sure, I could write a controller class hierarchy and pull it into each function, but that seems like a lot of grunt work for what frameworks like kohana and web.py have out of the box with controller classes. PBreit- I'm doing this too, but again, lacks the organization of classes. I'm not saying the web2py way is wrong- I'm sure Massimo has a reason for setting things up this way, as almost everything I've seen is incredibly well thought out- but I just don't see the upside of this approach, and as my project has grown large I've found myself wishing I had controllers I could subclass.. On Sunday, May 13, 2012 2:18:21 PM UTC-4, sebastian wrote: in Java (say for example Java EE 6), you would have your own Classes hierarchy (as extended as needed), and then you would inject what you need in your controllers (backing beans)... in web2py you can do exactly the same. Create your own hierarchy of classes (as extended as needed) and then just import the modules that you need in your controllers On Sun, May 13, 2012 at 7:07 PM, Yarin wrote: That's what I've already been doing, but making decisions in the model on which code to run based on the request controller turns into a hot mess of distributed logic and violates the most basic principles of MVC (Models knowing about Controllers?) On Sunday, May 13, 2012 1:58:25 PM UTC-4, simon wrote: You can put common controller functionality in the model. This is executed on each request before the controllers. You can check which controller is called in request.controller. On Sunday, 13 May 2012 17:31:22 UTC+1, Yarin wrote: I've always liked the idea of controllers as classes, allowing for subclassing of controllers, and thereby providing an easy means of handling common controller functionality. I'm curious as to why web2py didn't follow this approach? Is there a recommended way of handling code that is common to a group of controllers (besides sticking it at the top of a controller file)? -- Sebastian E. Ovide -- Sebastian E. Ovide
[web2py] Re: ImportError with plugin
Has anyone come up with a solution to this? Have the same issue. On Thursday, December 1, 2011 7:08:38 AM UTC+10, haikuvend Resident wrote: I have downloaded a plugin from http://dev.s-cubism.com/plugin_solidform It consists of two files: - controller/plugin_solidform.py (demo) - *modules/plugin_solidform.py* (the actual plugin) When using the exact same command as in the provided example: from plugin_solidform import SOLIDFORM in *controller/default.py* it gives me the following Traceback: Traceback (most recent call last): File C:\Users\xxx\web2py\gluon\restricted.py, line 194, in restricted exec ccode in environment File C:/Users/xxx/web2py/applications/haikuvend/controllers/default.py, line 56, in module File C:\Users\xxx\web2py\gluon\globals.py, line 149, in lambda self._caller = lambda f: f() File C:/Users/xxx/web2py/applications/haikuvend/controllers/default.py, line 13, in contact from plugin_solidform import SOLIDFORM File C:\Users\xxx\web2py\gluon\custom_import.py, line 294, in __call__ fromlist, level) File C:\Users\xxx\web2py\gluon\custom_import.py, line 78, in __call__ level) ImportError: No module named plugin_solidform Again, I'm using the exact same syntax as on that page. Why doesn't it work for me?
[web2py] Re: ImportError with plugin
Answering my own question here. Its a path issue. If you insert the fill path from the applications folder, its found. On Monday, May 14, 2012 8:08:23 AM UTC+10, Simon Ashley wrote: Has anyone come up with a solution to this? Have the same issue. On Thursday, December 1, 2011 7:08:38 AM UTC+10, haikuvend Resident wrote: I have downloaded a plugin from http://dev.s-cubism.com/plugin_solidform It consists of two files: - controller/plugin_solidform.py (demo) - *modules/plugin_solidform.py* (the actual plugin) When using the exact same command as in the provided example: from plugin_solidform import SOLIDFORM in *controller/default.py* it gives me the following Traceback: Traceback (most recent call last): File C:\Users\xxx\web2py\gluon\restricted.py, line 194, in restricted exec ccode in environment File C:/Users/xxx/web2py/applications/haikuvend/controllers/default.py, line 56, in module File C:\Users\xxx\web2py\gluon\globals.py, line 149, in lambda self._caller = lambda f: f() File C:/Users/xxx/web2py/applications/haikuvend/controllers/default.py, line 13, in contact from plugin_solidform import SOLIDFORM File C:\Users\xxx\web2py\gluon\custom_import.py, line 294, in __call__ fromlist, level) File C:\Users\xxx\web2py\gluon\custom_import.py, line 78, in __call__ level) ImportError: No module named plugin_solidform Again, I'm using the exact same syntax as on that page. Why doesn't it work for me?
Re: [web2py] Re: Nginx-uwsgi problem.
Youadworld is HUGE some tables even have 50 columns. On May 13, 2012 2:59 PM, pbreit pbreitenb...@gmail.com wrote: 135 tables to run YouAdWorld??
Re: [web2py] Re: ImportError with plugin
do you have __init__.py in your modules and in your app folders? http://zerp.ly/rochacbruno Em 13/05/2012 19:35, Simon Ashley gregs...@gmail.com escreveu: Answering my own question here. Its a path issue. If you insert the fill path from the applications folder, its found. On Monday, May 14, 2012 8:08:23 AM UTC+10, Simon Ashley wrote: Has anyone come up with a solution to this? Have the same issue. On Thursday, December 1, 2011 7:08:38 AM UTC+10, haikuvend Resident wrote: I have downloaded a plugin from http://dev.s-cubism.com/** plugin_solidform http://dev.s-cubism.com/plugin_solidform It consists of two files: - controller/plugin_solidform.py (demo) - *modules/plugin_solidform.py* (the actual plugin) When using the exact same command as in the provided example: from plugin_solidform import SOLIDFORM in *controller/default.py* it gives me the following Traceback: Traceback (most recent call last): File C:\Users\xxx\**web2py\gluon\restricted.py, line 194, in restricted exec ccode in environment File C:/Users/xxx/**web2py/applications/haikuvend/** controllers/default.py, line 56, in module File C:\Users\xxx\**web2py\gluon\globals.py, line 149, in lambda self._caller = lambda f: f() File C:/Users/xxx/**web2py/applications/haikuvend/** controllers/default.py, line 13, in contact from plugin_solidform import SOLIDFORM File C:\Users\xxx\**web2py\gluon\custom_import.py**, line 294, in __call__ fromlist, level) File C:\Users\xxx\**web2py\gluon\custom_import.py**, line 78, in __call__ level) ImportError: No module named plugin_solidform Again, I'm using the exact same syntax as on that page. Why doesn't it work for me?
Re: [web2py] Re: Nginx-uwsgi problem.
To cut define_table execution time you could try to put migrate=False, fake_migrate=False, when you call the DAL since in production the model does not change (usually) at runtime. Yes, definitely turn off migrations -- you can do so for the entire connection via: db = DAL(..., migrate_enabled=False) Also, compile the app -- I believe that particularly speeds up the views. Anthony
Re: [web2py] Re: Nginx-uwsgi problem.
How will compiling it effect things as we are actively developing and adding new features almost daily? On Sun, May 13, 2012 at 5:17 PM, Anthony abasta...@gmail.com wrote: To cut define_table execution time you could try to put migrate=False, fake_migrate=False, when you call the DAL since in production the model does not change (usually) at runtime. Yes, definitely turn off migrations -- you can do so for the entire connection via: db = DAL(..., migrate_enabled=False) Also, compile the app -- I believe that particularly speeds up the views. Anthony -- -- Regards, Bruce Wade http://ca.linkedin.com/in/brucelwade http://www.wadecybertech.com http://www.fittraineronline.com - Fitness Personal Trainers Online http://www.warplydesigned.com
Re: [web2py] Re: Nginx-uwsgi problem.
On Sunday, May 13, 2012 8:37:17 PM UTC-4, Bruce Wade wrote: How will compiling it effect things as we are actively developing and adding new features almost daily? After you make a change, you can just do Remove compiled and then re-compile. You can do it via the admin interface or the command line. Anthony
[web2py] Re: Tagging View
correct. On Friday, 11 May 2012 23:59:39 UTC-5, Rod Watkins wrote: Wow, very cool. One question. In the cms app, a page (with an id) already exists so the ajax post to the addtag action can add the tag to the page. In my case the create version of the form will not have an entity with an id yet since it does not exist in the db. Am I wrong to think than that this solution won't work on the create entity page? I would need a pre-existing entity, yes? Thanks Rod
[web2py] Re: Is there a way to use an Alias for a COUNT() field
You can still do rows.json() even if you add columns to rows or you change
their values.
On Saturday, 12 May 2012 00:27:49 UTC-5, Franklin Freitas wrote:
If I use what you recommend then what would be the best way to generate
the JSON output
Thanks Massimo
On Saturday, May 12, 2012 12:29:09 AM UTC-4:30, Massimo Di Pierro wrote:
No, but you can do
for row in rows: row['count'] = row[count]
On Friday, 11 May 2012 23:44:57 UTC-5, Franklin Freitas wrote:
Having the following
def by_country():
count = db.procesados.idpublicacion.count()
rows = db().select(db.procesados.pais, count,
groupby=db.procesados.pais)
return rows.json()
It generates the JSON:
[{pais: , COUNT(procesados.idpublicacion): 236}, {pais: AE,
COUNT(procesados.idpublicacion): 3}]
Is there a way to assign an Alias to the COUNT field so I won't have that
long name COUNT(procesados.idpublicacion) in the JSON output
Thanks
[web2py] Re: MongoDB Adapter error in select
I think you can already
db.table.insert(**dict())
Are you asking for something different?
On Saturday, 12 May 2012 05:25:02 UTC-5, Francisco Costa wrote:
It works Massimo!
In MongoDb is also common to insert dicts, can we also have that?
At the moment it only saves in the string format (check player Field)
{ _id : ObjectId(4fae3839b34f4brf5a31), city : Madrid, club
: Real Madrid, *player : {'n_goals': 43, 'name': 'Ronaldo'}* }
On Friday, May 11, 2012 9:16:58 PM UTC+1, Massimo Di Pierro wrote:
One more try please.
On Friday, 11 May 2012 06:04:52 UTC-5, Francisco Costa wrote:
Thanks Massimo. Please let me know if you need more help in debugging it
On Friday, May 11, 2012 12:40:35 AM UTC+1, Massimo Di Pierro wrote:
Now I understand better where all these problems come from. I shall fix
it tonight.
On Thursday, 10 May 2012 18:02:24 UTC-5, Francisco Costa wrote:
i didn't understand your question..
This is the complete code
import sys
import time
from gluon.dal import DAL, Field
mongo = DAL('mongodb://localhost:27017/sapo')
mongo.define_table('user',
Field('name', 'text'),
Field('age', 'integer'),
Field('city', 'string')
)
def insert_users():
mongo.user.insert(name='John', age=66, city='Toronto')
mongo.user.insert(name='Mark', age=43, city='Boston')
mongo.user.insert(name='Tom', age=43, city='Detroit')
mongo.user.insert(name='Jim', age=18, city='Detroit')
mongo.user.insert(name='Jack', age=18)
mongo.user.insert(name='Eric', city='Boston')
return 'users in database'
def find_users():
users = mongo(mongo.user.age==18).select()
return dict(users=users)
[web2py] Re: SQLFORM not print the ID values less and equal than zero from the referenced table
Please open a ticket. I do not see what may be causing this. On the other
ise the ID should be Null(None) or 0 else it will break most databases.
On Saturday, 12 May 2012 11:36:06 UTC-5, Eduardo Diaz wrote:
In our work we migrate from version of Web2py from 1.96.4 to 1.99.7, but we
have the following problem: SQLFORM not print the ID values less and
equal than zero, the referenced table (ex. table a). any security reason
for
this change?
# controller: debug.py
def index():
db.define_table('a',
Field('namea'),
format='%(namea)s'
)
db.define_table('b',
Field('nameb'),
Field('a_id',db.a)
)
form = SQLFORM(db.b)
return dict(form=form)
#table a contains
ALTER SEQUENCE a_id_seq MINVALUE 0; # we need zero in the table, and we
need to show in the form. its run in w2p 1.96, but not in 1.99
INSERT INTO a (id, namea) VALUES (0, 'a_0');
INSERT INTO a (id, namea) VALUES (1, 'a_1');
INSERT INTO a (id, namea) VALUES (2, 'a_2');
INSERT INTO a (id, namea) VALUES (3, 'a_3');
INSERT INTO a (id, namea) VALUES (4, 'a_4');
INSERT INTO a (id, namea) VALUES (5, 'a_5');
#The SELECT VIEW no print a_0 option, and if torce it, the validator print
the error VALUE NO IN DATABASE
select id=b_a_id class=generic-widget name=a_id
option value=/option
option value=1a_1/option
option value=2a_2/option
option value=3a_3/option
option value=4a_4/option
option value=5a_5/option
/select
[web2py] Re: crud.create causes an id problem
The new web2py (n trunk) has request.args(0,default=0,cast=int) On Saturday, 12 May 2012 13:27:07 UTC-5, Najtsirk wrote: I'm not too good at this stuff...but i think i had similar problem. In my controller I set the default value for the crud.create reference field: db.table.referenceid.default = request.args(0) form=crud.create(db.table) I solved the problem with: db.table.referenceid.default = *int*(request.args(0)) On Thursday, 5 April 2012 10:38:38 UTC+2, Sundar wrote: I migrated an application running in 1.94.6 to 1.99.7. I have a peculiar problem. Crud.create on normal tables work. But whenever I apply crud.create on children table (that is there is a foreign key in the table; of course, I set a default value for this key before calling crud.create), I get the error message type 'exceptions.KeyError' '_id' on the line containing the crud.create statement. Do you think I am doing anything wrong? Thanks and regards Sundar ps: If you require the trace, here it is: File E:/web2py1.99.7Source/applications/rsi_in1/controllers/fs.py http://pc77:8000/admin/default/edit/rsi_in1/controllers/fs.py, line 492, in rinvdetadd form = crud.create(db.fs_reimbinvcovers,next=URL(f='rinvview', vars=dict(id=id))) File E:\web2py1.99.7Source\gluon\tools.py, line 3172, in create formname=formname, File E:\web2py1.99.7Source\gluon\tools.py, line 3089, in update separator=self.settings.label_separator File E:\web2py1.99.7Source\gluon\sqlhtml.py, line 868, in __init__ inp = self.widgets.options.widget(field, default) File E:\web2py1.99.7Source\gluon\sqlhtml.py, line 216, in widget options = requires[0].options() File E:\web2py1.99.7Source\gluon\validators.py, line 465, in options self.build_set() File E:\web2py1.99.7Source\gluon\validators.py, line 452, in build_set records = self.dbset(table).select(*fields, **dd) File E:\web2py1.99.7Source\gluon\dal.py, line 7540, in __call__ query = query._id0 File E:\web2py1.99.7Source\gluon\dal.py, line 6774, in __getattr__ return self[key] File E:\web2py1.99.7Source\gluon\dal.py, line 6714, in __getitem__ return dict.__getitem__(self, str(key)) KeyError: '_id'
Re: [web2py] Re: storing more than 1 millions uploaded files
Can you post some examples. I could use this myself but I never got a
chance tot try it.
On Saturday, 12 May 2012 13:58:01 UTC-5, Nils Olofsson wrote:
Amazon's S3 is ideal for this, I use it I mount s3 using fuse interface.
Works pretty well for me.
Nils
On May 12, 2012 7:53 PM, Sebastian E. Ovide sebastian.ov...@gmail.com
wrote:
just wondering... (I know that it is not a normal application)... where
would you store a couple of millions pictures of less than 60K each ?
On Sat, May 12, 2012 at 2:04 AM, Massimo Di Pierro
massimo.dipie...@gmail.com wrote:
Oops. Sorry. I read it in a hurry.
I would not use the file system for something like this. Anyway, upload
separate creates up to 1296 subfolder per table.field. This number can be
increased.
On Friday, 11 May 2012 18:33:22 UTC-5, Anthony wrote:
On Friday, May 11, 2012 7:25:21 PM UTC-4, Massimo Di Pierro wrote:
yes.
Field('name','upload',**uploadseparate=True)
He's aware of that but seems to think that one level of sub-folders
won't be enough (he's expecting millions of files, so still more than 1000
files per sub-folder, even with uploadseparate=True).
I don't think web2py includes any out-of-the-box solution for
generating deeper levels of sub-folders for uploaded files. Maybe subclass
Field for that upload field and roll your own .store() and .retrieve()
methods.
Anthony
--
Sebastian E. Ovide
[web2py] Re: error deleting a row if the file uploaded is missing?
Please open a ticket with the traceback. This needs to be fixed quick.
On Sunday, 13 May 2012 03:27:54 UTC-5, sebastian wrote:
Hi All,
I have a table with Field('image1', type='upload', uploadseparate=True,
autodelete=True), If the file uploaded is missing (because deleted by hand
for example) then I would get this error trying to delete a row
db(db.service.id==1).delete()
Traceback (most recent call last):
File console, line 1, in module
File /home/sebas/dev/web2py/peerservices/gluon/dal.py, line 7582, in
delete
self.delete_uploaded_files()
File /home/sebas/dev/web2py/peerservices/gluon/dal.py, line 7643, in
delete_uploaded_files
%s.%s % (items[0], items[1]),
IndexError: list index out of range
Is it working as intended ?
thanks
--
Sebastian E. Ovide
[web2py] Re: reverse ajax on free hosting like fluxflex / pythonanywhere
Look into gluon/contrib/comet_messaging.py. There is an example in there. Requires tornado. On Sunday, 13 May 2012 07:06:49 UTC-5, stefaan wrote: Hello list, Would anyone have an idea on how to accomplish reverse ajax (server push) on free hosting like fluxflex/pythonanywhere? If I'm correct, typical comet libraries require special web servers, so that is probably out of the question on typical free hosting sites. For my own education I've implemented a little chat application using a long polling approach, where the server receives a request, and is looping and sleeping until some timeout occurs or until new info is available, but it very quickly uses up all my CPU quotum on e.g. fluxflex (I suspect that a statement like time.sleep(1) is counted as using 1 second of CPU time) Is the only alternative to use GAE with their channel API ? Thanks for any insights you may have.
[web2py] Re: web2py - form to pass input to matplotlib
# useful module
import os, tempfile, random, cStringIO
# setup a temporary working forlder
os.environ['MPLCONfigureDIR'] = tempfile.mkdtemp()
# main matplotlib modules
from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
from matplotlib.figure import Figure
# optional for scatter plots
from matplotlib.patches import Ellipse
def plot(title='title',xlab='x',ylab='y',
data={'xxx':[(0,0),(1,1),(1,2),(3,3)],
'yyy':[(0,0,.2),(2,1,0.2),(2,2,0.2),(3,3,0.2)]}):
figure=Figure(frameon=False)
axes=figure.add_subplot(111)
if title: axes.set_title(title)
if xlab: axes.set_xlabel(xlab)
if ylab: axes.set_ylabel(ylab)
keys=sorted(data) # sort data series by name
for key in keys: # for each data series
stream = data[key]
(x,y)=([],[]) # make empty list x and empty
list y
yerr = [] # ... and empty list yerr
(optional)
for point in stream: # for each point in series
x.append(point[0]) # append X coordinate to x
y.append(point[1]) # append Y coordinate to y
if len(point)==3: # if dY, append dY to yerr
yerr.append(point[2])
ell=axes.plot(x, y, linewidth=2) # plot y vs x
if len(yerr)==len(x): # if error bars, display them
axes.errorbar(x, y, yerr=yerr, fmt='o', linewidth=1)
canvas=FigureCanvas(figure)
stream=cStringIO.StringIO()
canvas.print_png(stream)
return stream.getvalue()
def plot_interference():
return plot(data={'interferemce':[(x,x**2) for x in range(100)]})
On Sunday, 13 May 2012 13:02:37 UTC-5, epifanio wrote:
i'm looking for a solution, to start to write a web-app to generate graph
using matplotlib
the graph needs to be generated using some inputs parameters coming from
the page itself.
right now i'm rewriting the app from scratch .. but i'm stuck on how to
integrate a query button to the python code ..
essentially what i need to start is :
a page with a line-edit input box + Jquery widget (a simple button, will
be enough to learn more)
then connect the button to execute a generic python code that will use as
input the text in the line-edit
.. the generic python code will process the text received as input and
return the results on the same page where the line-edit and the button are.
i hope my description gives you an idea of what i was looking for
Many thanks for any help!
Massimo.
Il giorno May 11, 2012, alle ore 10:49 AM, Massimo Di Stefano ha scritto:
Hi All,
i'm tring to learn web2py, thanks for the wonderful book and for the
really nice tutorial!
i'm a bit 'stuck' on how to perform a simple task (i guess it is simple)
because of my ignorance.
.. i'm bring to update dynamic a graph-chart (generated with matplotlib)
using a form to pass the input the draw-function.
what i have is a controller :
# template_example.py that 'espone' a function 'variables' , it will
display an image generated by matplotlib using the 'stem_plot' function (in
the same .py file)
# import a lib that generate the data from the url gived as input
from ecoopclimate import Climate
#import some matplotlib methodsm numpy ...
from pylab import stem, setp, grid, savefig, show, gca, subplot,
subplots_adjust
import matplotlib as mpl
import matplotlib.pyplot as plt
import datetime as dt
import numpy as np
# plot function
def stem_plot(data, name):
data[np.isnan(data)]=0
fig = plt.figure()
ax = fig.add_subplot(211)
mindate = int(data[0][0])
maxdate = int(data[0][-1])
date2_1 = dt.datetime(mindate, 1, 1)
date2_2 = dt.datetime(maxdate, 1, 1)
delta2 = dt.timedelta(days=365)
dates2 = mpl.dates.drange(date2_1, date2_2, delta2)
dateFmt = mpl.dates.DateFormatter('%Y')
ax.xaxis.set_major_formatter(dateFmt)
fig.autofmt_xdate(bottom=0.1)
x_p = dates2[np.where(data[1]=0)[0]]
y_p = data[1][np.where(data[1]=0)[0]]
x_n = dates2[np.where(data[1]0)[0]]
y_n = data[1][np.where(data[1]0)[0]]
markerline, stemlines, baseline = stem(x_p, y_p, 'r-')
setp(markerline, 'markerfacecolor', 'b')
setp(baseline, 'color', 'r', 'linewidth', 2)
setp(stemlines, 'linewidth', 1)
markerline, stemlines, baseline = stem(x_n, y_n, 'b-')
setp(markerline, 'markerfacecolor', 'b')
setp(baseline, 'color', 'r', 'linewidth', 2)
setp(stemlines, 'linewidth', 1)
grid()
setp(gca(), 'xlabel', 'Year', 'ylabel', name)
fig = '/Users/epifanio/web2py/applications/welcome/static/'+name+'.png'
dateFmt = mpl.dates.DateFormatter('%Y')
savefig(fig)
return fig
#show()
# function connected to the view : variables.html
def variables():
nao_url =
[web2py] SQLFORM factory with multiple correlated tables
Hi,
Suppose I have two tables, with a one-to-one relationship:
db.define_table('user', Field('name'));
db.define_table('car', Field('color'), Field('user_id', db.user))
What is the easiest way to create an SQLFORM that would store *correlated*data
in both fields? For instance, create a user with name Steve who owns a
red car, that would create two registries (name=Steve), (color=red,
user_id=Steve's id). As far as I'm concerned, I could do something like
this:
form=SQLFORM.factory(db.user, db.car)
if form.process().accepted:
# for what I've tested, only the user was inserted, so I have to insert
the car manually
if db.car.insert(color=request.vars.color, user_id=form.vars.id):
response.flash(T('Eh nois que voa'))
But I'm not sure this is the best approach (in terms of security,
performance and software engineering). Any insights?
Thanks
[web2py] Can't make db calls with scheduler
I'm using the scheduler and everything is working nicely, except that any calls I make to the db in the task function are ignored- Even though the tasks complete successfully, there's no error, or any indication from the worker that something went wrong. This is happening for both MySQL and SQLite. Below is my complete schedule.py file: from gluon.scheduler import Scheduler def update_it(): row_id = db.test.insert(name='bob') # Nothing will be inserted, and no error will be raised return row_id myscheduler = Scheduler(db, dict(update_it=update_it)) The book doesn't say anything about not being able to use the db.
[web2py] Re: Can't make db calls with scheduler
I think you need to db.commit() in the task. Does that solve it? On Sunday, 13 May 2012 21:20:51 UTC-5, Yarin wrote: I'm using the scheduler and everything is working nicely, except that any calls I make to the db in the task function are ignored- Even though the tasks complete successfully, there's no error, or any indication from the worker that something went wrong. This is happening for both MySQL and SQLite. Below is my complete schedule.py file: from gluon.scheduler import Scheduler def update_it(): row_id = db.test.insert(name='bob') # Nothing will be inserted, and no error will be raised return row_id myscheduler = Scheduler(db, dict(update_it=update_it)) The book doesn't say anything about not being able to use the db.
[web2py] Re: Can't make db calls with scheduler
Sorry, figured this out- db calls made with the scheduler need a db.commit() On Sunday, May 13, 2012 10:20:51 PM UTC-4, Yarin wrote: I'm using the scheduler and everything is working nicely, except that any calls I make to the db in the task function are ignored- Even though the tasks complete successfully, there's no error, or any indication from the worker that something went wrong. This is happening for both MySQL and SQLite. Below is my complete schedule.py file: from gluon.scheduler import Scheduler def update_it(): row_id = db.test.insert(name='bob') # Nothing will be inserted, and no error will be raised return row_id myscheduler = Scheduler(db, dict(update_it=update_it)) The book doesn't say anything about not being able to use the db.
[web2py] Re: wysiwyg editor saving ALL in a blob (including pictures)
To me, this is bad idea. You miss out on many of the nice things of having the images in a table. For example, you can index and search the images. The database and your server don't have to be hit so hard because those images are on another server so your pages can load faster. Attachments, images in this case, can be referenced by other pages that might be created. And there are other reasons too. On Sunday, May 13, 2012 11:18:59 PM UTC+3, sebastian wrote: Hi All, I've read a couple of tutorials (probably from web2py slices) about HTML wysiwyg + images uploading (in separate table) I was just wondering... what if instead of defining a TEXT field and an additional table for storing images we define a BLOB field and we store ALL there HTML + Images (or images names. and images in FS) I don't know if there is any lib around that would do it if not, I guess that using the CKEditor + some web2py logic (probably serializing a dictionary with the text + images) should not be so difficult to create a widget for it... what do you think ? thanks -- Sebastian E. Ovide
