Re: Model 'Child' is inherited from 'Parent', trying to filter to get only Child results with Parent.objects.filter(...)

[Matías Aguirre]

This worked on on Django 1.2.5:

Parent.objects.exclude(child__isnull=True)

Does it work for you?

Excerpts from robin's message of Tue May 31 05:53:26 -0300 2011:
> Example code:
> 
>class Parent(models.Model):
> name = models.CharField(max_length='20',blank=True)
> 
> class Child(Parent):
> pass
> 
> I want to get the result of Child.objects.all() but I DO NOT want to
> use Child.
> I want to use Parent instead, which I tried to do with:
> 
> Parent.objects.filter(child__isnull=False)
> 
> Which doesn't work and gives the result of Product.objects.all()
> instead.
> However If I do the following, it WORKS:
> 
> Parent.objects.filter(child__name__isnull=False)
> 
> Another way, if I insist on using
> Parent.objects.filter(child__isnull=False), is to change the Child
> model to the following:
> 
> class Child(models.Model):
> parent = models.OneToOneField(Parent)
> 
> Then Parent.objects.filter(child__isnull=False) would WORK
> 
> The problem with the 2 solutions above is that filtering with
> child__name__isnull looks hackish, and I don't want to change my Child
> model to use OneToOneField.
> 
> So is there a better way?
> 
> Thanks,
> Robin
-- 
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Re: Model 'Child' is inherited from 'Parent', trying to filter to get only Child results with Parent.objects.filter(...)

[robin]

Shall I report the inability of using
Parent.objects.filter(child__isnull=False)  as a bug?

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Re: Is there an HTML editor that's Django-aware

[Kenneth Gonsalves]

On Tue, 2011-05-31 at 14:26 +0100, Tom Evans wrote:
> > Where do you think such information should live? That is, at what
> > point in your process of learning Django would information about
> > editors have been helpful? Somewhere in the tutorial, or after?
> > Before?
> >
> > Thanks,
> >
> > Jacob
> >
> 
> The wording on this should be very careful. The default answer to
> 'what editor should I use to develop with Django' should be 'the one
> that you know how to use and are comfortable using'. 

there is this page:
https://code.djangoproject.com/wiki/Emacs

I would suggest expanding this to include other editors and putting a
link to it in the docs - somewhere near the links to learning python.
-- 
regards
KG
http://lawgon.livejournal.com
Coimbatore LUG rox
http://ilugcbe.techstud.org/

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Re: Does django 1.3 has a ubuntu deb package released!

[Ernesto Guevara]

In Ubuntu 10.04 repository stlll 1.1 version. =/

2011/5/31 Tobias Quinn 

> You can always install the debian package from:
>
> http://packages.debian.org/wheezy/python-django
>
> which seems to work fine...
>
> On Apr 30, 3:29 am, Korobase  wrote:
> > Does django 1.3 has a ubuntu deb package released !
> > I have googled but get none,Any one have done this?
> > Thanks.
> >
> > --
>
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>

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Re: Auditing Record Changes in All Admin Tables

[Lee]

Moved it to admin.py but it ignores the auto_now parameters (leaving
timestamps blank) and doesn't populate the created_by/updated_by
fields either:

class AuditAdmin(admin.ModelAdmin):
  created = models.DateTimeField(auto_now_add=True)
  created_by = models.CharField(blank=True,max_length=20)
  updated = models.DateTimeField(auto_now=True)
  updated_by = models.CharField(blank=True,max_length=20)
  def save_model(self, request, obj, form, change):
if change:
  obj.updated_by = request.user
else:
  obj.created_by = request.user
obj.save()

class Entity1Admin(AuditAdmin):
  inlines = (JoinTableInline,)

admin.site.register(Entity1,Entity1Admin)

-
I inserted a sys.exit() line to dump request.user, and it has the
correct value, but it's not getting pushed to the database record.

Thanks very much for your help, do you have other ideas?

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Re: django-profiles and get_absolute_url

[Andrew Sledge]

Thank you Matias.

Your syntax was a little off, but you did solve it. Here is the
correct syntax:

import profiles
...
...
...
url(r'^profiles/(?P[\w\.]+)/$',
'profiles.views.profile_detail', name='profiles_profile_detail'),

I will submit a patch to django-profiles to support the characters
"@/./+/-/_".

On May 31, 5:00 pm, Matías Aguirre  wrote:
> This is the value for such url definition:
>
>     url(r'^(?P\w+)/$', views.profile_detail, 
> name='profiles_profile_detail'),
>
> the rule uses \w+ which doesn't match the dot character. Example:
>
>     >>> import re
>     >>> r = re.compile('(\w+)')
>     >>> r.match('name.1').groups()
>     ('name',)
>     >>> r.match('.')
>     >>>
>
> So, basically, django-profiles doesn't support usernames with dots characters,
> you might need to override such URL.
>
>     url(r'^profiles/(?P[\w\.]+)/$', views.profile_details,
>         name='profiles_profile_detail'),
>     url(r'^profiles/', include('profiles.urls')),
>
> Makes sense?
>
> Matías
>
> Excerpts from Andrew Sledge's message of Tue May 31 17:51:15 -0300 2011:
>
>
>
>
>
>
>
> > Don't think that has anything to do with it, but here goes...
>
> > url(r'^profiles/', include('profiles.urls')),
>
> > The remaining url config is provided by django-profiles.
>
> > On May 31, 4:46 pm, Matías Aguirre  wrote:
> > > Hi,
>
> > > Could you share the URL rule for profiles_profile_detail?
>
> > > Matías
>
> > > Excerpts from Andrew Sledge's message of Tue May 31 17:37:20 -0300 2011:
>
> > > > Hi All,
>
> > > > I am having trouble getting an absolute URL using the django-profiles
> > > > module with usernames that have periods in them (for instance "/
> > > > profiles/user.1").
>
> > > > Here is my profile class:
>
> > > > class UserProfile(models.Model):
> > > >   user = models.ForeignKey(User, unique=True)
> > > >   web_site = models.URLField(blank=True, null=True,
> > > > verify_exists=False)
>
> > > >   @models.permalink
> > > >   def get_absolute_url(self):
> > > >     return ('profiles_profile_detail', (), {'username':
> > > > unicode(self.user.username)})
>
> > > > If the user name does not have a period in it, it returns a desirable
> > > > URL (for instance "/profiles/user1" and "/profiles/user_1" work).
>
> > > > I've tried forcing to unicode, to str, and leaving blank. I've even
> > > > forced UTF coding in the database using PRAGMA encoding="UTF-8";
>
> > > > Running out of ideas here...any thoughts?
>
> > > --
> > > Matías Aguirre 
>
> --
> Matías Aguirre 

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Re: Passing parameters to form class

[christian.posta]

Yes, you will want to do this within the __init__ method.

Run the super class's init method first so that everything's
initialized as normal.

Then you will have to grab the field for that instance within the
__init__ method (self.fields['vaihtoehdot']) and set the choices
property for it.



On May 31, 3:09 am, skyde  wrote:
> Hello,
>
> I've hit a brick wall while trying to create dynamic forms.
> Basically I am trying to give parameter to a class form and then based
> on that do a multiple choice questionaire.
>
> For example
>
> def somefunction():
>     formi = someForm(ids='1')
>
> class someForm(forms.Form):
>    # get id from, use it to get some information from a model and then
> based on that create a multiplechoice questionnaire. Or better yet do
> the model querying in somefuntion and only pass the results to
> someForm.
>
> *
> Inside someForm I can create a tuple and then use this tuple to do a
> MultipleChoiceField but I can't for the life of me understand how I
> could parametrize this.
>
> So this works:
> C = (('a','a'), ('b','b'), ('c','c'), ('d','d'),)
> vaihtoehdot = forms.MultipleChoiceField(choices=C,
> widget=forms.CheckboxSelectMultiple)
>
> but when I try to change the C to be dynamic I get an empty form. I've
> tried fiddling with the __init__ function but to no avail.

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Re: django-profiles and get_absolute_url

[Matías Aguirre]

This is the value for such url definition:

url(r'^(?P\w+)/$', views.profile_detail, 
name='profiles_profile_detail'),

the rule uses \w+ which doesn't match the dot character. Example:

>>> import re
>>> r = re.compile('(\w+)')
>>> r.match('name.1').groups()
('name',)
>>> r.match('.')
>>>

So, basically, django-profiles doesn't support usernames with dots characters,
you might need to override such URL.

url(r'^profiles/(?P[\w\.]+)/$', views.profile_details,
name='profiles_profile_detail'),
url(r'^profiles/', include('profiles.urls')),

Makes sense?

Matías

Excerpts from Andrew Sledge's message of Tue May 31 17:51:15 -0300 2011:
> Don't think that has anything to do with it, but here goes...
> 
> url(r'^profiles/', include('profiles.urls')),
> 
> The remaining url config is provided by django-profiles.
> 
> On May 31, 4:46 pm, Matías Aguirre  wrote:
> > Hi,
> >
> > Could you share the URL rule for profiles_profile_detail?
> >
> > Matías
> >
> > Excerpts from Andrew Sledge's message of Tue May 31 17:37:20 -0300 2011:
> >
> >
> >
> >
> >
> >
> >
> > > Hi All,
> >
> > > I am having trouble getting an absolute URL using the django-profiles
> > > module with usernames that have periods in them (for instance "/
> > > profiles/user.1").
> >
> > > Here is my profile class:
> >
> > > class UserProfile(models.Model):
> > >   user = models.ForeignKey(User, unique=True)
> > >   web_site = models.URLField(blank=True, null=True,
> > > verify_exists=False)
> >
> > >   @models.permalink
> > >   def get_absolute_url(self):
> > >     return ('profiles_profile_detail', (), {'username':
> > > unicode(self.user.username)})
> >
> > > If the user name does not have a period in it, it returns a desirable
> > > URL (for instance "/profiles/user1" and "/profiles/user_1" work).
> >
> > > I've tried forcing to unicode, to str, and leaving blank. I've even
> > > forced UTF coding in the database using PRAGMA encoding="UTF-8";
> >
> > > Running out of ideas here...any thoughts?
> >
> > --
> > Matías Aguirre 
> 
-- 
Matías Aguirre 

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spawning threads within test cases in django test framework

[Brian]

I've got a django app with a periodically scheduled background task that 
updates the database. I've written a bunch of tests for its principal class 
that are run as part of the django unit test framework. I want to convert 
the class to do its work using multiple threads, but I'm having trouble 
getting the tests to run against the multi-threaded version.

I've tried sqlite3 and postgres as back-ends, but to no avail. Is there a 
problem where the testing framework uses transactions to rollback any 
changes from one test to the next and so the evolving state of the database 
in that transaction is hidden from the other threads? Can the database 
connection (and hence transaction) be shared between the threads? Has anyone 
encountered this problem before? (And, ideally, came up with a really neat 
solution...)

Thanks,

Brian 

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Re: django-profiles and get_absolute_url

[Andrew Sledge]

Don't think that has anything to do with it, but here goes...

url(r'^profiles/', include('profiles.urls')),

The remaining url config is provided by django-profiles.

On May 31, 4:46 pm, Matías Aguirre  wrote:
> Hi,
>
> Could you share the URL rule for profiles_profile_detail?
>
> Matías
>
> Excerpts from Andrew Sledge's message of Tue May 31 17:37:20 -0300 2011:
>
>
>
>
>
>
>
> > Hi All,
>
> > I am having trouble getting an absolute URL using the django-profiles
> > module with usernames that have periods in them (for instance "/
> > profiles/user.1").
>
> > Here is my profile class:
>
> > class UserProfile(models.Model):
> >   user = models.ForeignKey(User, unique=True)
> >   web_site = models.URLField(blank=True, null=True,
> > verify_exists=False)
>
> >   @models.permalink
> >   def get_absolute_url(self):
> >     return ('profiles_profile_detail', (), {'username':
> > unicode(self.user.username)})
>
> > If the user name does not have a period in it, it returns a desirable
> > URL (for instance "/profiles/user1" and "/profiles/user_1" work).
>
> > I've tried forcing to unicode, to str, and leaving blank. I've even
> > forced UTF coding in the database using PRAGMA encoding="UTF-8";
>
> > Running out of ideas here...any thoughts?
>
> --
> Matías Aguirre 

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Re: django-profiles and get_absolute_url

[Matías Aguirre]

Hi,

Could you share the URL rule for profiles_profile_detail?

Matías

Excerpts from Andrew Sledge's message of Tue May 31 17:37:20 -0300 2011:
> Hi All,
> 
> I am having trouble getting an absolute URL using the django-profiles
> module with usernames that have periods in them (for instance "/
> profiles/user.1").
> 
> Here is my profile class:
> 
> class UserProfile(models.Model):
>   user = models.ForeignKey(User, unique=True)
>   web_site = models.URLField(blank=True, null=True,
> verify_exists=False)
> 
>   @models.permalink
>   def get_absolute_url(self):
> return ('profiles_profile_detail', (), {'username':
> unicode(self.user.username)})
> 
> If the user name does not have a period in it, it returns a desirable
> URL (for instance "/profiles/user1" and "/profiles/user_1" work).
> 
> I've tried forcing to unicode, to str, and leaving blank. I've even
> forced UTF coding in the database using PRAGMA encoding="UTF-8";
> 
> Running out of ideas here...any thoughts?
-- 
Matías Aguirre 

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django-profiles and get_absolute_url

[Andrew Sledge]

Hi All,

I am having trouble getting an absolute URL using the django-profiles
module with usernames that have periods in them (for instance "/
profiles/user.1").

Here is my profile class:

class UserProfile(models.Model):
  user = models.ForeignKey(User, unique=True)
  web_site = models.URLField(blank=True, null=True,
verify_exists=False)

  @models.permalink
  def get_absolute_url(self):
return ('profiles_profile_detail', (), {'username':
unicode(self.user.username)})

If the user name does not have a period in it, it returns a desirable
URL (for instance "/profiles/user1" and "/profiles/user_1" work).

I've tried forcing to unicode, to str, and leaving blank. I've even
forced UTF coding in the database using PRAGMA encoding="UTF-8";

Running out of ideas here...any thoughts?

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Re: Auditing Record Changes in All Admin Tables

[Ryan]

That code is supposed to go in the models admin definition like so:

admin.py:
--
class AuditAdmin(admin.ModelAdmin):
def save_model(self, request, obj, form, change):
obj.user = request.user
obj.save()

Ryan

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Re: Auditing Record Changes in All Admin Tables

[Lee]

Thanks for that tip Ryan. Here's the relevant models.py code I used to
get this to _almost_ work:
-
class AuditedTable(models.Model):
  created = models.DateTimeField(auto_now_add=True)
  created_by = models.CharField(blank=True,max_length=20)
  updated = models.DateTimeField(auto_now=True)
  updated_by = models.CharField(blank=True,max_length=20)
  class Meta:
abstract = True
  def save_model(self, request, obj, form, change):
if change:
  updated_by = request.user
else:
  created_by = request.user

class Entity1(AuditedTable):
  title = models.CharField(max_length=20)
  def __unicode__(self):
return self.title

The initial record creation works great, but on update, the user ID is
returned by request.user instead of the user name. Anybody have ideas
how to fix that?

On May 29, 12:37 am, Ryan  wrote:
> This will show you how to achieve this in the django 
> admin:https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contr...

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Re: Multiple inheritance from models.Model and admin.ModelAdmin

[Lee]

Discovered that save_model() is still available even if I don't
inherit admin.ModelAdmin, which avoids the metaclass conflict.

On May 31, 10:36 am, Lee  wrote:
> I'm trying to create a class that inherits from both models.Model and
> admin.ModelAdmin, so that I can use models.ManyToManyField and
> save_model() from admin.ModelAdmin. Unfortunately this combination
> gives "metaclass conflict: the metaclass of a derived class must be a
> (non-strict) subclass of the metaclasses of all its bases". I've
> googled on the error message and tried a couple of the suggestions but
> with no luck. Anyone know the correct way of doing this?
>
> Thanks for any help.
>
> Lee

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how to display a property in a ModelFormSet?

[snfctech]

I'm using a ModelFormSet to display and edit multiple records.  Some
of those records have related attributes that I want to display, but
not edit.  E.g.

lineitem.quantity [editable] lineitem.product.description [not
editable]

So I thought I would add a property to my LineItem class in order to
render that in a ModelFormSet, like so:

def _get_product_description(self):
return self.product.description
product_description = property(_get_product_description)

But that wont get displayed when I render my FormSet.

Any tips on how to deal with this problem?

Thanks.

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FreeBSD fastcgi rc.d script

[Jon J]

It took me a bit to figure out the particulars of this, but I thought
I'd give it to the community, in case someone comes looking for the
same solution.


#!/bin/sh
#
# PROVIDE: myapp
# REQUIRE: DAEMON
# KEYWORD: shutdown
#
# Notes on usage: Just adjust the location and name of your app as needed.


. /etc/rc.subr

name="myapp"
rcvar=`set_rcvar`

load_rc_config $name

#
# DO NOT CHANGE THESE DEFAULT VALUES HERE
# SET THEM IN THE /etc/rc.conf FILE
#
myapp_enable=${myapp_enable-"NO"}
myapp_pidfile=${myapp_pidfile-"/var/run/myapp.pid"}

command_interpreter="/usr/local/bin/python2.7" #Set this to whatever
works for you
pidfile="${utility_pidfile}"
command="/path/to/app/manage.py"
command_args="runfcgi method=threaded host=127.0.0.1 port=3033 pidfile=$utility$
run_rc_command "$1"

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Re: Django DATETIME_FORMAT Localization

[Kirill Spitsin]

On Wed, May 25, 2011 at 10:46:30AM -0700, jrs_66 wrote:
> How can I do something like strptime(request.POST["start-date"],
> mycurrent_DATETIME_FORMAT)... There's got to be an undocumented way of
> referencing the constant currently being used?

I guess you need `django.utils.formats.date_format` function.

-- 
Kirill Spitsin

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"invalid label' as it pertains to application name

[Bobby Roberts]

I am getting a pretty non-descript error reading "Caught RuntimeError
while rendering: invalid label: cigar-wizard" when i go to a certain
url on my website.  This isn't a form label... it's referring to an
application name.  Any ideas what that means?

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Re: apache+mod_wsgi, redirect to https

[refreegrata]

Thanks men, I did this:
--

  
   ...
   ...
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
  
...


Works ok to me. Now I must to test the "Require Auth".
Bye.


On 31 mayo, 13:33, Michael Scovetta 
wrote:
> I usually set up two virtual hosts, one listening on port 80 and the other
> on 443. The virtual host listening on port 80 just redirects to the other
> one:
>
> 
>     ServerAdmin ad...@example.com
>     ServerName domain.com
>
>     HostnameLookups Off
>     UseCanonicalName On
>     ServerSignature Off
>
>     Redirect /https://domain.com/
> 
>
> 
>     SSLEngine on
>
>     ServerAdmin ad...@example.com
>     ServerName domain.com
>
>     HostnameLookups Off
>     UseCanonicalName On
>     ServerSignature Off
>
>     WSGIScriptAlias / /opt/apache/wsgi_start.py
>     WSGIPassAuthorization On
>     ...
> 
>
> I haven't tried it, but would think that you could use mod_rewrite along
> with mod_wsgi, but it's possible that WSGI gets called first automagically.
>
> Hope this helps!
>
> Mike

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Re: apache+mod_wsgi, redirect to https

[Michael Scovetta]

I usually set up two virtual hosts, one listening on port 80 and the other 
on 443. The virtual host listening on port 80 just redirects to the other 
one:


ServerAdmin ad...@example.com
ServerName domain.com

HostnameLookups Off
UseCanonicalName On
ServerSignature Off

Redirect / https://domain.com/



SSLEngine on

ServerAdmin ad...@example.com
ServerName domain.com

HostnameLookups Off
UseCanonicalName On
ServerSignature Off

WSGIScriptAlias / /opt/apache/wsgi_start.py
WSGIPassAuthorization On
...


I haven't tried it, but would think that you could use mod_rewrite along 
with mod_wsgi, but it's possible that WSGI gets called first automagically.

Hope this helps!

Mike

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Multiple inheritance from models.Model and admin.ModelAdmin

[Lee]

I'm trying to create a class that inherits from both models.Model and
admin.ModelAdmin, so that I can use models.ManyToManyField and
save_model() from admin.ModelAdmin. Unfortunately this combination
gives "metaclass conflict: the metaclass of a derived class must be a
(non-strict) subclass of the metaclasses of all its bases". I've
googled on the error message and tried a couple of the suggestions but
with no luck. Anyone know the correct way of doing this?

Thanks for any help.

Lee

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Re: Chained forms

[DrBloodmoney]

On Tue, May 31, 2011 at 12:55 PM, Marc Aymerich  wrote:
> Hi!,
> I'm writing an admin action.
> This action needs to collect some information before execute the "final
> task".
> In order to collect this information the user should fill 3 consecutive
> forms, (once they submitted one, another is rendered).
> My question is,
> How can I store the form fields state submitted on each form, and retrieve
> this fields states on the final form, before execute the 'final task'?
> Thanks!
> --
> Marc

You should read the docs about Form Wizard:

https://docs.djangoproject.com/en/dev/ref/contrib/formtools/form-wizard/

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Re: How to create user on mobile app for Django site?

[Ivo Brodien]

Thanks for sharing your opinion!

Your approach is probably good for many website/applications, but since I want 
to make use of InApp Purchases and Camara Overlays and Custom Controls, I don’t 
think this is the right way to go.

I was impressed by PhoneGap though... 2 or 3 years ago I was seeing their 
affords which where great, but know it seems to have gotten quite big in terms 
of features and system support.

thanks

> My approach would be to:
> 
> 1) Build a regular site using django-registration and django-profiles
> to handle signups, passwords as usual.
> 
> 2) Build an HTML mobile site off of that (you need one anyway, even if
> you're going to have an app). There are lots of tutorials out there on
> delivering mobile versions of content with Django.
> 
> 3) Use something like Sencha or Phonegap to compile the mobile site as
> iPhone and Android apps.

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Re: how to implement a data grid? (or populate inlineformset with initial data)

[snfctech]

Thanks for your reply, Daniel.

I read the docs, but did not understand them properly.  Your
explanation makes sense, but doesn't seem to be working for me, for
some reason.  I followed the docs from
https://docs.djangoproject.com/en/1.3/topics/forms/modelforms/#inline-formsets
precisely, but am getting and error that my relation does not exist.
I think it may have something to do with not using a default
database.  The funny thing is, I can access the related records fine
from the parent instance (i.e. user.josjeventsregistration_set).  Do
you need to explicitly tell inlineformset to use a non-default DB
somehow?

In [1]: from django.forms.models import inlineformset_factory

In [2]: from classes.models import JosUsers,
JosJeventsRegistration

In [3]: RegistrationFormSet = inlineformset_factory(JosUsers,
JosJeventsRegistration)

In [4]: user = JosUsers.objects.using('mydevdb').get(pk='1234')

In [5]: fs = RegistrationFormSet(instance=user)

ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line statement', (13, 0))

---
DatabaseError Traceback (most recent call
last)

/home/tony/sandbox/django/dashboard/ in ()

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/forms/
models.pyc in __init__(self, data, files, instance, save_as_new,
prefix, queryset)
680 qs = queryset.filter(**{self.fk.name: self.instance})
681 super(BaseInlineFormSet, self).__init__(data, files,
prefix=prefix,
--> 682 queryset=qs)
683
684 def initial_form_count(self):

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/forms/
models.pyc in __init__(self, data, files, auto_id, prefix, queryset,
**kwargs)
413 defaults = {'data': data, 'files': files, 'auto_id':
auto_id, 'prefix': prefix}
414 defaults.update(kwargs)
--> 415 super(BaseModelFormSet, self).__init__(**defaults)
416
417 def initial_form_count(self):

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/forms/
formsets.pyc in __init__(self, data, files, auto_id, prefix, initial,
error_class)
 45 self._non_form_errors = None
 46 # construct the forms in the formset

---> 47 self._construct_forms()
 48
 49 def __unicode__(self):

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/forms/
formsets.pyc in _construct_forms(self)
105 # instantiate all the forms and put them in self.forms

106 self.forms = []
--> 107 for i in xrange(self.total_form_count()):
108 self.forms.append(self._construct_form(i))
109

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/forms/
formsets.pyc in total_form_count(self)
 81 return
self.management_form.cleaned_data[TOTAL_FORM_COUNT]
 82 else:
---> 83 initial_forms = self.initial_form_count()
 84 total_forms = initial_forms + self.extra
 85 # Allow all existing related objects/inlines to be
displayed,


/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/forms/
models.pyc in initial_form_count(self)
685 if self.save_as_new:
686 return 0
--> 687 return super(BaseInlineFormSet,
self).initial_form_count()
688
689

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/forms/
models.pyc in initial_form_count(self)
418 """Returns the number of forms that are required in
this FormSet."""
419 if not (self.data or self.files):
--> 420 return len(self.get_queryset())
421 return super(BaseModelFormSet,
self).initial_form_count()
422

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/db/
models/query.pyc in __len__(self)
 80 self._result_cache = list(self._iter)
 81 else:
---> 82 self._result_cache = list(self.iterator())
 83 elif self._iter:
 84 self._result_cache.extend(self._iter)

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/db/
models/query.pyc in iterator(self)
271 model = self.model
272 compiler = self.query.get_compiler(using=db)
--> 273 for row in compiler.results_iter():
274 if fill_cache:
275 obj, _ = get_cached_row(model, row,

/home/tony/sandbox/django/env/lib/python2.6/site-packages/django/db/
models/sql/compiler.pyc in results_iter(self)
678 fields = None
679 has_aggregate_select =
bool(self.query.aggregate_select)
--> 680 for rows in self.execute_sql(MULTI):
681 for row in rows:
682 if resolve_columns:

apache+mod_wsgi, redirect to https

[refreegrata]

Hello guys and girls. I have a question. In my apache configuration I
have this:

WSGIScriptAlias /misite "rute_to_file.wsgi"

The users can access from:

http://mysite/
and
https://mysite/

I need to enable the access only from "https://mysite/;. Every access
from "http://mysite/; must to be redirected to "https://mysite/;. How
can i do this?

Normally I use mod_rewrite, and thats works fine for the static files,
php, etc, but I don't have idea how do this with mod_wsgi.

Additionaly, can be very helpful if somebody now how configure an
"Require Auth" with mod_wsgi.

Sometime ago somebody asked the same in stackoverflow, without get
answers.

Thanks for read, and sorry for my poor english.

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Chained forms

[Marc Aymerich]

Hi!,
I'm writing an admin action.
This action needs to collect some information before execute the "final
task".
In order to collect this information the user should fill 3 consecutive
forms, (once they submitted one, another is rendered).

My question is,
How can I store the form fields state submitted on each form, and retrieve
this fields states on the final form, before execute the 'final task'?

Thanks!
-- 
Marc

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Re: How to I create download link of some file using django

[Ivo Brodien]

you are welcome!

> I have another question here. It seems that django.contrib.staticfiles
> can be used to handle some static files during the 'debug' mode while
> using the embedded 'runserver' from django. However, would it be
> possible if I just develop my website using the system's Apache and
> not using the django.contrib.staticfiles?

Of course and this is even better, because this is how the setup should be on 
real server.

You have to configure Apache to serve for example everything under 
http://mydomain.com/static/ as a simple file without talking to django at all. 
The static stuff is good for static files like CSS and JavaScript.

BTW:  although this goes beyond the question I just want to mention it for 
completeness.

On the other hand the {{MEDIA_URL }} and MEDIA_ROOT is more for server/user 
generated files. You can still have Apache serve the file after authorizing it 
against Django. The keyword here is: x-sendfile

http://stackoverflow.com/questions/1156246/having-django-serve-downloadable-files

What you were doing with open the file probably only makes sense if you need to 
 process the contents of the file in any way. 


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Re: Learning Django: Approach / Advice / Resources

[Robin]

You guys are spectacular!  Thanks!  I'll give these replies a few
reads and just keep plugging along.  I'm going to sort of circle back
and see if it wouldn't be a good idea to restart my project with a
fresh set of eyes now that I've spent a bit of time with Django.

Derek,

The test cookie thing is -- as I understand it -- you place a test
cookie, then check if it's there.  It's basically a check to see if
the browser accepts cookies.  I'm just not entirely sure when I should
and shouldn't make the check when using parts of the built-in auth
moduel.  I guess if I'm using the login view, it's will test for me.
I sort of started with the whole auth system, then backed out of using
the form and the view just to learn how it works on a basic level.
And in browsing the code, I saw the test cookie functions and did some
research.

Thanks again!

Robin

On May 31, 8:07 am, Derek  wrote:
> On May 30, 9:30 pm, Robin  wrote:
>
>
>
>
>
>
>
>
>
> > A little while ago, I was approached about building a basic web site
> > for a small store.  The requirements were pretty typical and read like
> > a menu of web development tutorials.  This was to be a data driven
> > site that any decent web developer could build.  I, however, am not a
> > web developer, decent or otherwise.  So, I turned the assignment down
> > and decided it's time I looked into learning something about web
> > development.
>
> > I looked at everything from ASP to Java to PHP and even the likes of
> > Drupal and Joomla.  I liked the ideas and patterns behind Django as a
> > framework ( MVC = :) ) and Python as a language.  The combination
> > seemed like perfect middle ground to me.  Things were going well as I
> > worked through the tutorial and explored the documentation to dig
> > deeper into core Django topics.  Where am I today?
>
> > I'm struggling a bit with Django, to be honest.  Or maybe I'm
> > struggling with Python, I'm not completely certain which.  Maybe it's
> > because I'm trying to learn web development and Python at the same
> > time.  I'm certainly no genius, but I'm not a bonehead either...at
> > least my mother doesn't think so. ;)
>
> > The individual technical ideas are presented well and I can always
> > find enough information to learn more.  But Django as a whole feels
> > less cohesive.  Or maybe it's that Django sometimes feels...TOO
> > flexible?  There are certainly a lot of choices in terms of how much
> > Django to use and how much to roll yourself.  Guidance seems to be
> > offered on a per-module basis.  Maybe that's just how it is and I'm
> > looking for structure where there is none available.
>
> > I'm not sure what to override...when to call the super classes
> > corresponding method.  Do I have to concern myself with the test
> > cookie idea?  Should I name my URLs?  Is mixing positional and keyword
> > arguments OK?  Are generic views the best way, or just the quickest
> > way?
>
> > I guess it boils down to a concern over making poor choices and
> > learning bad habits.  If I'm going to spend any amount of time with
> > this web development hing, I want to do it right.  I'm also fighting
> > my urge to build everything myself.  Sure it would be plenty flexible,
> > but it would also take longer and wouldn't leverage the great work
> > done by all of Django's contributors.
>
> > So, what am I rattling on about then?
>
> > Judging by some of the posts I've read since joining the group, I'm
> > sure there are a bunch of folks who would appreciate some guidance
> > and / or best practices from the more experienced Django developers.
> > I understand everyone learns and progresses differently, but I would
> > really appreciate your take on things.
>
> > How much do you use built in Django functionality?  Are there
> > components you tend to avoid?  Do you use Django only for certain
> > types of projects?  Do you struggle with Python or Django?  Is the
> > source code a good place to spend some time?  Is your authentication
> > system home-grown?  Have you been bitten in the behind by using too
> > much Django?  Not enough?
>
> > I realize this is a lot to ask, but I think it's a good thing that we
> > help newer developers do things the right way.  I certainyl want to
> > become a contributing member of this group, but not until I won't give
> > bad advice and flat out wrong answers. ;)
>
> > I've gone through a good chunk of the Django Book online.  Is this a
> > good resource or do you have other recommendations?  There aren't all
> > that many books on Django, but there are a few.  Do any do a better
> > job than the others of guiding you to the best way to build web
> > sites / apps?  I sure wish there was a book that kept pace with the
> > changes and the miost recent version.  Is the fact that there isn't
> > much available a bad sign?
>
> > Just jump in and adjust as I learn my lessons?
>
> > Regards,
>
> > Robin
>
> Hi Robin
>
> Not sure I can address all your 

Re: How to create user on mobile app for Django site?

[shacker]

On May 31, 4:35 am, Ivo Brodien  wrote:
> What is the correct way to do the following:
>
> 1) Mobile App from which a user can create a user/profile on the Django site
> 2) Allow authenticated users to create on the site and query personalized 
> data from the site

My approach would be to:

1) Build a regular site using django-registration and django-profiles
to handle signups, passwords as usual.

2) Build an HTML mobile site off of that (you need one anyway, even if
you're going to have an app). There are lots of tutorials out there on
delivering mobile versions of content with Django.

3) Use something like Sencha or Phonegap to compile the mobile site as
iPhone and Android apps.

./s

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Re: How to I create download link of some file using django

[Kann]

Thanks for your help Ivo,

I have another question here. It seems that django.contrib.staticfiles
can be used to handle some static files during the 'debug' mode while
using the embedded 'runserver' from django. However, would it be
possible if I just develop my website using the system's Apache and
not using the django.contrib.staticfiles?

Kann

On May 31, 4:51 pm, Ivo Brodien  wrote:
> > I am a bit confused about how to set the MEDIA_URL variable here.
> > Currently, I am testing the web using Django embedded webserver and
> > doesn't have a proper url yet. Should my MEDIA_URL be something
> > like...http://my_machine_name:8000/media/
>
> yes, but so in your template you do:
>
> > ### in the template 
> > download
>
> Your:> http://groups.google.com/group/django-users?hl=en.

Re: Accessing request.user in formset validation

[Carsten Fuchs]

Hi Tom,

wow, perfect!!

A thousand thanks for your help and example code!
:-D

Best regards,
Carsten



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for multiplayer, cross-platform, real-time 3D Action
  Learn more at http://www.cafu.de

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Re: admin site search field

[podio]

I found one solutions:
 field = models.OneToOneField("self")
Im now searching how have a search form instead of a combo box.



On 31 mayo, 10:10, podio  wrote:
> yes, that was that I copy and didn't select de ', so when I pasted I
> saw only the missing bracket.
>
> On 31 mayo, 04:07, delegb...@dudupay.com wrote:
>
>
>
>
>
>
>
> > First, you did enclose doc properly. You wrote 'doc instead of 'doc'.
> > Sort that first. I'm however not suggesting that is the solution.
> > Regards.
> > Sent from my BlackBerry wireless device from MTN
>
> > -Original Message-
> > From: podio 
>
> > Sender: django-users@googlegroups.com
> > Date: Mon, 30 May 2011 16:24:10
> > To: Django users
> > Reply-To: django-users@googlegroups.com
> > Subject: admin site search field
>
> > Hi, I'm new and I'm trying to make an app that have a field, pointing
> > to a record of the same object class. How can a make django has a
> > search form and show the record of the class on a popup window 
> > likehttp://demoweb.cibernatural.com/admin/gestion/presupuesto/add/(user
> > and password demo:demo) but pointing to the same class
>
> > class afiliado(models.Model):
> >     def __unicode__(self):
> >         return self.nombre
> >     nombre = models.CharField("Nombre",max_length=200)
> >     fecha_nac  = models.DateField("Fecha Nacimiento")
> >     doc = models.CharField("Documento",max_length=20,blank =True)
> >     obra_social = models.ForeignKey(obra_sociale)
> >     caracter = models.ForeignKey(caractere)
> >     tipo = models.ForeignKey(tipo)
> >     titular = models.CharField(max_length=200) > this
> > field
>
> > class AfiliadoAdmin(admin.ModelAdmin):
> >     fieldsets = [
> >         (None               ,{'fields':
> > ['nombre','fecha_nac','DOCN','Nacionalidad']}),
> >         ('Datos Generales'  ,{'fields':
> > ['obra_social','caracter','tipo',"titular",'Matricula','fecha_ing']}),
> >         ('Datos de contacto',{'fields':
> > ['Direccion',"CP","Ciudad","Provincia","Tel1","Tel2","Email"]}),
> >     ]
> >     list_display = ('nombre',"tipo")
> >     list_filter = ['Ciudad']
> >     search_fields = ['nombre','doc]
>
> > Thansk!
>
> > --
> > You received this message because you are subscribed to the Google Groups 
> > "Django users" group.
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> > To unsubscribe from this group, send email to 
> > django-users+unsubscr...@googlegroups.com.
> > For more options, visit this group 
> > athttp://groups.google.com/group/django-users?hl=en.

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Re: Does django 1.3 has a ubuntu deb package released!

[Tobias Quinn]

You can always install the debian package from:

http://packages.debian.org/wheezy/python-django

which seems to work fine...

On Apr 30, 3:29 am, Korobase  wrote:
> Does django 1.3 has a ubuntu deb package released !
> I have googled but get none,Any one have done this?
> Thanks.
>
> --

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Re: how to implement a data grid? (or populate inlineformset with initial data)

[Daniel Roseman]

On Tuesday, 31 May 2011 15:20:11 UTC+1, snfctech wrote:
>
> Thanks, Jayapal. 
>
> I was hoping there was a little less java/ more django way to do this 
> by utilizing a Django ModelForm or InlindeFormSet and rendering 
> partial views. 
>
> So am I missing the point of InlineFormSets?  Can these not be 
> populated with data so they can be used to edit a set of existing 
> records? 
>
> Thanks. 
>
> Tony 
>

No, you're not missing the point - that is exactly what model formsets are 
for. But you haven't read the documentation very closely: InlineFormsets are 
meant for editing only those elements that are related via ForeignKey to a 
specific object, so it is that related object that you pass to the formset 
via the `instance` parameter. The documentation shows this 
clearly: 
https://docs.djangoproject.com/en/1.3/topics/forms/modelforms/#inline-formsets

If you want to edit the elements of a queryset that aren't necessarily all 
related to the same object, you just use a standard ModelFormset, which does 
take a `queryset` argument - again, as shown in the 
docs: 
https://docs.djangoproject.com/en/1.3/topics/forms/modelforms/#using-a-custom-queryset
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Re: How to I create download link of some file using django

[Ivo Brodien]

> I am a bit confused about how to set the MEDIA_URL variable here.
> Currently, I am testing the web using Django embedded webserver and
> doesn't have a proper url yet. Should my MEDIA_URL be something
> like... http://my_machine_name:8000/media/


yes, but so in your template you do:

> ### in the template 


> download


Your:
> http://groups.google.com/group/django-users?hl=en.

Re: How to I create download link of some file using django

[Ivo Brodien]

Hi did you read this documentation about serving static files?

In generally you don’t want serve files through django, but through your actual 
webserver (e.g. Apache, nginx, lighttpd...).

However during development you can make django serve them.

See: Serving static files in development

https://docs.djangoproject.com/en/dev/howto/static-files/

Since it can become a bit cumbersome to define this URL pattern, Django ships 
with a small URL helper function static() that takes as parameters the prefix 
such as MEDIA_URL and a dotted path to a view, such as 
'django.views.static.serve'. Any other function parameter will be transparently 
passed to the view.
An example for serving MEDIA_URL ('/media/') during development:


from django.conf import settings
from django.conf.urls.static import static



urlpatterns = patterns('',


# ... the rest of your URLconf goes here ...
) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

cheers


On May 31, 2011, at 4:24 PM, Kann wrote:

> Dear all,
> 
> I am a bit confused about how to set the MEDIA_URL variable here.
> Currently, I am testing the web using Django embedded webserver and
> doesn't have a proper url yet. Should my MEDIA_URL be something
> like... http://my_machine_name:8000/media/
> 
> Kann
> 
> On May 26, 12:42 pm, Boštjan Mejak  wrote:
>> Fix   some_file  = open('bla/bla/bla/', "rw")tosome_file  =
>> open('bla/bla/bla/', "r")
>> 
>> Fix that "rw" to just "r". You just want the user to read (a.k.a. get) the
>> file, not have write access to it.
> 
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Re: how to implement a data grid? (or populate inlineformset with initial data)

[Javier Guerra Giraldez]

On Tue, May 31, 2011 at 9:20 AM, snfctech  wrote:
> I was hoping there was a little less java/ more django way to do this

i haven't seen any Java around Dojo toolkit



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Re: How to I create download link of some file using django

[Kann]

Dear all,

I am a bit confused about how to set the MEDIA_URL variable here.
Currently, I am testing the web using Django embedded webserver and
doesn't have a proper url yet. Should my MEDIA_URL be something
like... http://my_machine_name:8000/media/

Kann

On May 26, 12:42 pm, Boštjan Mejak  wrote:
> Fix   some_file  = open('bla/bla/bla/', "rw")    to    some_file  =
> open('bla/bla/bla/', "r")
>
> Fix that "rw" to just "r". You just want the user to read (a.k.a. get) the
> file, not have write access to it.

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Re: how to implement a data grid? (or populate inlineformset with initial data)

[snfctech]

Thanks, Jayapal.

I was hoping there was a little less java/ more django way to do this
by utilizing a Django ModelForm or InlindeFormSet and rendering
partial views.

So am I missing the point of InlineFormSets?  Can these not be
populated with data so they can be used to edit a set of existing
records?

Thanks.

Tony

On May 31, 12:03 am, jai_python  wrote:
> Hi,
>     Long back i had used Dojodatagrid, plz go through my 
> bloghttp://jayapal-d.blogspot.com/2009/08/dojo-datagrid-with-editable-cel...
>
> I am sure that we can do with jquery.
>
> Lemme know if u required any help.
>
> Thanks,
> Jayapal
>
> On May 31, 6:39 am, snfctech  wrote:
>
> > I want to display a list of records that have some editable fields and
> > some readonly fields, as well as asynchronously add new records to the
> > list.  I thought the way to start would be with an InlineFormSet - but
> > I can't figure out how to populate my formset with initialdata.  E.g.
> > MyInlineFormset(queryset=myquery.all()) or
> > MyInlineFormset(data=myquery.vales()) doesn't do the trick.
>
> > Can someone steer me in the right direction?
>
> > Thanks.

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Re: python code works in command line but not in django

[bruno desthuilliers]

On May 31, 4:06 pm, Kann  wrote:
> I am just new to programming and not quite familiar with pdb. But I
> assume that this is what you are talking about:
>
> http://docs.python.org/library/pdb.html


Yes, that's it. This and the logging module are tools that are really
worth spending some time learning, as they will save you way more time
in the long run.

Note that there are similar tools for Java, if you ever need to trace
code execution in the Java program.

Also and while we're at it, you may want to at least check the return
code from the os.system code (or replace the call to os.system with
some subprocess function or method that allow you to catch and check
the stderr of the Java process).

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Re: Learning Django: Approach / Advice / Resources

[Derek]

On May 30, 9:30 pm, Robin  wrote:
> A little while ago, I was approached about building a basic web site
> for a small store.  The requirements were pretty typical and read like
> a menu of web development tutorials.  This was to be a data driven
> site that any decent web developer could build.  I, however, am not a
> web developer, decent or otherwise.  So, I turned the assignment down
> and decided it's time I looked into learning something about web
> development.
>
> I looked at everything from ASP to Java to PHP and even the likes of
> Drupal and Joomla.  I liked the ideas and patterns behind Django as a
> framework ( MVC = :) ) and Python as a language.  The combination
> seemed like perfect middle ground to me.  Things were going well as I
> worked through the tutorial and explored the documentation to dig
> deeper into core Django topics.  Where am I today?
>
> I'm struggling a bit with Django, to be honest.  Or maybe I'm
> struggling with Python, I'm not completely certain which.  Maybe it's
> because I'm trying to learn web development and Python at the same
> time.  I'm certainly no genius, but I'm not a bonehead either...at
> least my mother doesn't think so. ;)
>
> The individual technical ideas are presented well and I can always
> find enough information to learn more.  But Django as a whole feels
> less cohesive.  Or maybe it's that Django sometimes feels...TOO
> flexible?  There are certainly a lot of choices in terms of how much
> Django to use and how much to roll yourself.  Guidance seems to be
> offered on a per-module basis.  Maybe that's just how it is and I'm
> looking for structure where there is none available.
>
> I'm not sure what to override...when to call the super classes
> corresponding method.  Do I have to concern myself with the test
> cookie idea?  Should I name my URLs?  Is mixing positional and keyword
> arguments OK?  Are generic views the best way, or just the quickest
> way?
>
> I guess it boils down to a concern over making poor choices and
> learning bad habits.  If I'm going to spend any amount of time with
> this web development hing, I want to do it right.  I'm also fighting
> my urge to build everything myself.  Sure it would be plenty flexible,
> but it would also take longer and wouldn't leverage the great work
> done by all of Django's contributors.
>
> So, what am I rattling on about then?
>
> Judging by some of the posts I've read since joining the group, I'm
> sure there are a bunch of folks who would appreciate some guidance
> and / or best practices from the more experienced Django developers.
> I understand everyone learns and progresses differently, but I would
> really appreciate your take on things.
>
> How much do you use built in Django functionality?  Are there
> components you tend to avoid?  Do you use Django only for certain
> types of projects?  Do you struggle with Python or Django?  Is the
> source code a good place to spend some time?  Is your authentication
> system home-grown?  Have you been bitten in the behind by using too
> much Django?  Not enough?
>
> I realize this is a lot to ask, but I think it's a good thing that we
> help newer developers do things the right way.  I certainyl want to
> become a contributing member of this group, but not until I won't give
> bad advice and flat out wrong answers. ;)
>
> I've gone through a good chunk of the Django Book online.  Is this a
> good resource or do you have other recommendations?  There aren't all
> that many books on Django, but there are a few.  Do any do a better
> job than the others of guiding you to the best way to build web
> sites / apps?  I sure wish there was a book that kept pace with the
> changes and the miost recent version.  Is the fact that there isn't
> much available a bad sign?
>
> Just jump in and adjust as I learn my lessons?
>
> Regards,
>
> Robin


Hi Robin

Not sure I can address all your issues, so I will just pick up on a
few...

One thing from the start -> " If I'm going to spend any amount of time
with this web development thing, I want to do it right."  You will -
eventually.  Its often really hard to do it right first time because
you do not have enough experience to know if you're making a mistake!
Getting going, doing stuff and maybe putting out in public the parts
you are most concerned/unsure about is the best way to get the
experience...

"struggling with Python"

I cannot say that its essential to know Python in depth before
starting web programming, but I would say it would be a huge help.

Its not clear what programming experience you have. If none, then its
worth starting with the basics of programming.  If you have some, then
try and find a comparison between the language you used and Python
(pref. written by a Python person).

Some useful "getting started" tutorials:
* http://docs.activestate.com/activepython/2.5/easytut/index.html
* http://www.gidnetwork.com/b-26.html

After reading and trying out what someone else 

Re: python code works in command line but not in django

[Kann]

I am just new to programming and not quite familiar with pdb. But I
assume that this is what you are talking about:

http://docs.python.org/library/pdb.html

Perhaps, I will look into it.

Thanks for your suggestions. :)

Kann

On May 31, 3:13 pm, bruno desthuilliers
 wrote:
> On May 31, 12:25 pm, Kann  wrote:
>
> > Hi Bruno,
>
> > I tested with both system's python shell and the "manage.py shell",
> > and both of them also worked. The PNG file was created properly.
>
> Ok.
>
> > I also check the path returned from os.path.abspath() and both of them
> > are ok as well.
>
> Ok.
>
> > Now I am testing using the Django embedded development server.
>
> Well... If it works using django shell and not using the embedded
> server, you'll have to step-debug your code (you know how to use
> pdb ?).
>
> If it works using the embedded server and fail using Apache or another
> front-end web server, then it's most probably some ENV / permission
> problem.
>
> HTH

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Re: Accessing request.user in formset validation

[Tom Evans]

On Tue, May 31, 2011 at 2:21 PM, Carsten Fuchs  wrote:
> Hi all,
>
> in some of my forms and formsets I need access to request.user in form
> validation.
>
> With an individual form, I pass request.user as a parameter to the
> constructor, using code like this:
>
> class ErfasseZeitraumForm(forms.Form):
>    von    = forms.DateField(widget=AdminDateWidget())
>    bis    = forms.DateField(widget=AdminDateWidget())
>
>    def __init__(self, User, *args, **kwargs):
>        super(ErfasseZeitraumForm, self).__init__(*args, **kwargs)
>        self.User = User
>
>
> How can I achieve the same for entire formsets?
>
> I'm still quite new to Python, and I'm unsure what to override where to make
> the formset factory pass the request.user to all form constructors, or even
> if that is the "best" and canonical way to this?
>
> Thank you very much!
>
> Best regards,
> Carsten

You need to define a class which inherits from BaseFormSet class,
override the __init__ method to accept the user as an argument,
override the _construct_form() method to add the additional user
argument to the form kwargs.
Then, define a form class which accepts the user argument in its
__init__ method.
Finally, specify to Django to use these forms by passing them as the
form and formset arguments to formset_factory or modelformset_factory
- the same technique applies to both.

Eg for some LogEntry model:

from django.forms.models import ModelForm, BaseModelFormSet,\
modelformset_factory
from models import LogEntry

class LogEntryBaseFormSet(BaseModelFormSet):
  def __init__(self, *args, **kwargs):
self.user = kwargs.pop('user')
super(LogEntryBaseFormSet, self).__init__(*args, **kwargs)
  def _construct_form(self, i, **kwargs):
kwargs['user'] = self.user
return super(LogEntryBaseFormSet, self)._construct_form(i, **kwargs)

class LogEntryForm(ModelForm):
  def __init__(self, *args, **kwargs):
self.user = kwargs.pop('user')
super(LogEntryForm, self).__init__(*args, **kwargs)
  def clean(self):
# use self.user
return self.cleaned_data

LogEntryFormSet = modelformset_factory(LogEntry, form=LogEntryForm,
formset=LogEntryBaseFormSet, extra=3, can_delete=True)


Cheers

Tom

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Re: Is there an HTML editor that's Django-aware

[Jean-Pierre De Villiers]

I would suggest a section that all that newbies can visit on the website,
with links to various text editors so that they can make their own decisions
depending on their own personal preference etc.

Cheers

JP De Villiers

On Tue, May 31, 2011 at 3:26 PM, Tom Evans  wrote:

> On Mon, May 30, 2011 at 2:41 PM, Jacob Kaplan-Moss 
> wrote:
> > On Monday, May 30, 2011, BobX  wrote:
> >> If anyone from the Django Project itself is listening then can I (very
> >> humbly) suggest that some editor recommendations would make a real
> >> fine addition to the info on the site (useful to n00b's like me
> >> anyway).
> >
> > That's a good idea - thanks!
> >
> > Where do you think such information should live? That is, at what
> > point in your process of learning Django would information about
> > editors have been helpful? Somewhere in the tutorial, or after?
> > Before?
> >
> > Thanks,
> >
> > Jacob
> >
>
> The wording on this should be very careful. The default answer to
> 'what editor should I use to develop with Django' should be 'the one
> that you know how to use and are comfortable using'.
>
> We shouldn't be suggesting that there are a couple of 'correct'
> choices, but perhaps providing hints and tips on how to fully use
> certain popular editors with Django, eg how to correctly enable syntax
> highlighting for django templates in various editors.
>
> We definitely should not be trying to answer the question 'what is the
> best editor for Django', or in any way try to suggest to noobies that
> they must/should learn a new editor as well as learning Django.
>
> The idea that because someone is new to Django means that they must
> also be new to typing to text into a file and need our help to guide
> them is somewhat patronizing.
>
> Cheers
>
> Tom
>
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>
>

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Re: Is there an HTML editor that's Django-aware

[Tom Evans]

On Mon, May 30, 2011 at 2:41 PM, Jacob Kaplan-Moss  wrote:
> On Monday, May 30, 2011, BobX  wrote:
>> If anyone from the Django Project itself is listening then can I (very
>> humbly) suggest that some editor recommendations would make a real
>> fine addition to the info on the site (useful to n00b's like me
>> anyway).
>
> That's a good idea - thanks!
>
> Where do you think such information should live? That is, at what
> point in your process of learning Django would information about
> editors have been helpful? Somewhere in the tutorial, or after?
> Before?
>
> Thanks,
>
> Jacob
>

The wording on this should be very careful. The default answer to
'what editor should I use to develop with Django' should be 'the one
that you know how to use and are comfortable using'.

We shouldn't be suggesting that there are a couple of 'correct'
choices, but perhaps providing hints and tips on how to fully use
certain popular editors with Django, eg how to correctly enable syntax
highlighting for django templates in various editors.

We definitely should not be trying to answer the question 'what is the
best editor for Django', or in any way try to suggest to noobies that
they must/should learn a new editor as well as learning Django.

The idea that because someone is new to Django means that they must
also be new to typing to text into a file and need our help to guide
them is somewhat patronizing.

Cheers

Tom

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Accessing request.user in formset validation

[Carsten Fuchs]

Hi all,

in some of my forms and formsets I need access to request.user in form 
validation.


With an individual form, I pass request.user as a parameter to the 
constructor, using code like this:


class ErfasseZeitraumForm(forms.Form):
von= forms.DateField(widget=AdminDateWidget())
bis= forms.DateField(widget=AdminDateWidget())

def __init__(self, User, *args, **kwargs):
super(ErfasseZeitraumForm, self).__init__(*args, **kwargs)
self.User = User


How can I achieve the same for entire formsets?

I'm still quite new to Python, and I'm unsure what to override where to 
make the formset factory pass the request.user to all form constructors, 
or even if that is the "best" and canonical way to this?


Thank you very much!

Best regards,
Carsten



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for multiplayer, cross-platform, real-time 3D Action
  Learn more at http://www.cafu.de

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Re: BadValueError: Property title is required

[bruno desthuilliers]

On May 31, 11:45 am, "michal.bulla"  wrote:
> Hello,
>
> I'm trying to create simple method to create category. I set the model
> category:
>
> class Category(db.Model):
>  title = db.StringProperty(required=True)
>  clashes_count = db.IntegerProperty(default=0)


Are you sure you posted on the right newsgroup ?-)

You're obviously not using Django's ORM.

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Re: python code works in command line but not in django

[bruno desthuilliers]

On May 31, 12:25 pm, Kann  wrote:
> Hi Bruno,
>
> I tested with both system's python shell and the "manage.py shell",
> and both of them also worked. The PNG file was created properly.

Ok.

> I also check the path returned from os.path.abspath() and both of them
> are ok as well.

Ok.

> Now I am testing using the Django embedded development server.

Well... If it works using django shell and not using the embedded
server, you'll have to step-debug your code (you know how to use
pdb ?).

If it works using the embedded server and fail using Apache or another
front-end web server, then it's most probably some ENV / permission
problem.


HTH

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Re: admin site search field

[podio]

yes, that was that I copy and didn't select de ', so when I pasted I
saw only the missing bracket.


On 31 mayo, 04:07, delegb...@dudupay.com wrote:
> First, you did enclose doc properly. You wrote 'doc instead of 'doc'.
> Sort that first. I'm however not suggesting that is the solution.
> Regards.
> Sent from my BlackBerry wireless device from MTN
>
>
>
>
>
>
>
> -Original Message-
> From: podio 
>
> Sender: django-users@googlegroups.com
> Date: Mon, 30 May 2011 16:24:10
> To: Django users
> Reply-To: django-users@googlegroups.com
> Subject: admin site search field
>
> Hi, I'm new and I'm trying to make an app that have a field, pointing
> to a record of the same object class. How can a make django has a
> search form and show the record of the class on a popup window 
> likehttp://demoweb.cibernatural.com/admin/gestion/presupuesto/add/(user
> and password demo:demo) but pointing to the same class
>
> class afiliado(models.Model):
>     def __unicode__(self):
>         return self.nombre
>     nombre = models.CharField("Nombre",max_length=200)
>     fecha_nac  = models.DateField("Fecha Nacimiento")
>     doc = models.CharField("Documento",max_length=20,blank =True)
>     obra_social = models.ForeignKey(obra_sociale)
>     caracter = models.ForeignKey(caractere)
>     tipo = models.ForeignKey(tipo)
>     titular = models.CharField(max_length=200) > this
> field
>
> class AfiliadoAdmin(admin.ModelAdmin):
>     fieldsets = [
>         (None               ,{'fields':
> ['nombre','fecha_nac','DOCN','Nacionalidad']}),
>         ('Datos Generales'  ,{'fields':
> ['obra_social','caracter','tipo',"titular",'Matricula','fecha_ing']}),
>         ('Datos de contacto',{'fields':
> ['Direccion',"CP","Ciudad","Provincia","Tel1","Tel2","Email"]}),
>     ]
>     list_display = ('nombre',"tipo")
>     list_filter = ['Ciudad']
>     search_fields = ['nombre','doc]
>
> Thansk!
>
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Re: Why self-defined session_key got changed when save in DB?

[Tom Evans]

On Sat, May 28, 2011 at 4:00 AM, Jimmy  wrote:
> Hi,
>
> I have following code to set self-defined session_key:
>
 from django.contrib.sessions.backends.db import SessionStore
 from django.contrib.sessions.models import Session
 a = SessionStore(session_key="fwefwejfo3j20jf02jnfweojfeo")
 a.save()
 a.session_key
> 'a6e020a64789b5644e923c85b80a1d0b'
>
> Why the session_key got changed after saved in DB? Where is my defined
> session_key?
>

This is not a bug, it is by design. The session app is protecting you
from session fixation attacks.

If you try to use a session with a specified key, and no session with
that key exists, django will cycle the session key to avoid a user
being caught by a session fixation attack, where a malicious user
attempts to get a valid user to log in using a known session key, and
then accesses their session.

Cheers

Tom

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How to create user on mobile app for Django site?

[Ivo Brodien]

What is the correct way to do the following:

1) Mobile App from which a user can create a user/profile on the Django site
2) Allow authenticated users to create on the site and query personalized data 
from the site

This is what I guess I have to do:

1) Create a REST API  (probably with e.g. django-piston) on at the Django site 
for creation and authentication 

How would I authenticate against the Django site?

When I use URL connections from the mobile app do I always have to send the 
credentials or can the Django site identify me by storing session cookies on 
the client just like as if the mobile app would be a browser?

Note: When I say mobile app I actually mean iPhone App for now, but there might 
be a Android version sometime in the future.

Thanks for any advice!




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Passing parameters to form class

[skyde]

Hello,

I've hit a brick wall while trying to create dynamic forms.
Basically I am trying to give parameter to a class form and then based
on that do a multiple choice questionaire.

For example

def somefunction():
formi = someForm(ids='1')

class someForm(forms.Form):
   # get id from, use it to get some information from a model and then
based on that create a multiplechoice questionnaire. Or better yet do
the model querying in somefuntion and only pass the results to
someForm.

*
Inside someForm I can create a tuple and then use this tuple to do a
MultipleChoiceField but I can't for the life of me understand how I
could parametrize this.

So this works:
C = (('a','a'), ('b','b'), ('c','c'), ('d','d'),)
vaihtoehdot = forms.MultipleChoiceField(choices=C,
widget=forms.CheckboxSelectMultiple)

but when I try to change the C to be dynamic I get an empty form. I've
tried fiddling with the __init__ function but to no avail.

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BadValueError: Property title is required

[michal.bulla]

Hello,

I'm trying to create simple method to create category. I set the model
category:

class Category(db.Model):
 title = db.StringProperty(required=True)
 clashes_count = db.IntegerProperty(default=0)

And the class New Category as well :

class NewCategoryPage(webapp.RequestHandler):
 def get(self):
   categories = Category.all().order('-title')

   template_values = { }
   path = os.path.join(os.path.dirname(__file__), 'templates',
'category_new.html')
   self.response.out.write(template.render(path, template_values))

 def post(self):
   category = Category()
   category.title = self.request.get('title')
   category.put()
   self.redirect('/')

Here is the template:

{%extends "base.html"%}
{%block body%}

Add New Category


 Title: 
 


{%endblock%}

The problem is that I'm getting an error BadValueError: Property title
is required. Can you help me with that ? Thanks

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Latching onto IPB board

[Cody Woolaver]

Hello,

I'm looking to use django just as a back-end to handle requests made from
some of the programs the website develops. It is currently setup on an IPB
forum and i would like to be able to access the data stored in the database
in much the same way that you would if it was a django made database.

Example:
user = Member.objects.filter(member_id=12345)

would return a class that i can read the associated data from. such as
>> user.email
>> user.member_group_id

And all of that other interesting information. Im not looking to edit any of
it, but just read from it

Thanks
~Cody Woolaver

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Re: Serving static file on Windows

[Alagu Madhu]

Hi,

I use Django 1.3.

sample/
static/
js/jquery.1.6.1.min.js
 css/

settings.py

APP_DIR = os.path.abspath(os.path.dirname(__file__))
STATIC_ROOT = os.path.join(APP_DIR, 'static/')
STATIC_URL = 'http://192.168.1.141:44/static/'
TEMPLATE_DIRS = (
os.path.join(APP_DIR, 'templates/')
)

urls.py

from django.conf.urls.defaults import patterns, include, url

urlpatterns = patterns('',
(r'^$', 'hydra.views.index'),
(r'^static/(?P.*)$', 'django.views.static.serve',
{'document_root':'/django/spl/kk/static'}),
)

The above settings works.

Thanks

Madhu

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Re: python code works in command line but not in django

[Kann]

Hi Bruno,

I tested with both system's python shell and the "manage.py shell",
and both of them also worked. The PNG file was created properly.

I also check the path returned from os.path.abspath() and both of them
are ok as well.

Now I am testing using the Django embedded development server.

Kann

On May 31, 12:19 pm, bruno desthuilliers
 wrote:
> On May 31, 11:29 am, Kann  wrote:
>
> > Hi All,
>
> > I apologize for now being specific enough. The java script
>
> s/script/application/
>
> Please let's not confuse Java with javascript ;)
>
> > should read
> > files in "tmp/medusa" and use "Medusa.jar" as the referenced class to
> > run. The result of the script should be a png image using data from
> > files inside "tmp/medusa"
>
> > I tested the java command via terminal and it worked fine. The PNG
> > image was created correctly.
>
> > I tested the python package using python shell
>
> bare python shell, or ./manage.py shell ?
>
> > by importing
> > MedusaConnector and run the "MedusaConnector.create_image()", and the
> > PNG image was created properly as well.
>
> > Therefore, I imported the Medusa package into my views.py and try to
> > run it using django. This time, the PNG file was created, but with and
> > empty image unlike those 2 previous test cases.
>
> > Really have no idea what's going on here...
>
> Check you path. FWIW:
>
> Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39)
> [GCC 4.4.5] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>
> >>> import os
> >>> os.getcwd()
> '/home/bruno'
> >>> os.path.abspath('tmp')
> '/home/bruno/tmp'
> >>> os.chdir('/home')
> >>> os.path.abspath('tmp')
> '/home/tmp'
>
> Also are you running Django with the embedded development server (./
> manage.py runserver) or behind Apache or another front web server ? In
> the second case, you may have issues with ENV, perms etc.
>
> HTH

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Re: python code works in command line but not in django

[bruno desthuilliers]

On May 31, 11:29 am, Kann  wrote:
> Hi All,
>
> I apologize for now being specific enough. The java script

s/script/application/

Please let's not confuse Java with javascript ;)

> should read
> files in "tmp/medusa" and use "Medusa.jar" as the referenced class to
> run. The result of the script should be a png image using data from
> files inside "tmp/medusa"
>
> I tested the java command via terminal and it worked fine. The PNG
> image was created correctly.
>
> I tested the python package using python shell

bare python shell, or ./manage.py shell ?

> by importing
> MedusaConnector and run the "MedusaConnector.create_image()", and the
> PNG image was created properly as well.
>
> Therefore, I imported the Medusa package into my views.py and try to
> run it using django. This time, the PNG file was created, but with and
> empty image unlike those 2 previous test cases.
>
> Really have no idea what's going on here...

Check you path. FWIW:

Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.getcwd()
'/home/bruno'
>>> os.path.abspath('tmp')
'/home/bruno/tmp'
>>> os.chdir('/home')
>>> os.path.abspath('tmp')
'/home/tmp'
>>>

Also are you running Django with the embedded development server (./
manage.py runserver) or behind Apache or another front web server ? In
the second case, you may have issues with ENV, perms etc.

HTH

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Re: Is there an HTML editor that's Django-aware

[Simon Connah]

On 31 May 2011, at 00:20, AJ wrote:

> If I can give my $0.02, the content can live anywhere, but how about at least 
> a link to the content within the initial "setting up django environment' 
> section?
> 
> This way those who are just beginning programming and Django can know what do 
> they need to do and what are the pros and cons of an editor/ide upfront.

Agreed. An editor section at the start would be useful. I'm guessing that quite 
a few people who are new to Django are also new to Python as well (in the same 
way as many new Rails users are new to Ruby) so any help in getting them 
started with Python as a whole as well as in a Django specific way will be 
helpful.

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Problem with layout

[Isaac XxX]

Hi friends,

recently I upgraded my django installed version to 1.3.

To test it, i got a free html/css template from a page, and started a little
web. The surprise came when I open development webserver, with all static
files configured properly, and the resulting website (without any
modification, only serving the same web template from django instead of
filesystem) is wider, and some parts are malformed.

I used the same html template (without modifications), and the same images
and CSS (CSS only modified to get properly routes).

Then, i set the same index.html and served from django server as static file
(without using django routes, only servinc static html file). This file is
malformed too, at the same way as serving as django page. The last test was
to open that html file, from the same browsers, but this time from
filesystem, instead of from django. File display correctly all layout.

Any idea about what is happening?

Thanks in advance

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Re: Serving static file on Windows

[Alagu Madhu]

Hi,


I use Django 1.3.



sample/
static/
js/jquery.1.6.1.min.js
 css/

settings.py

APP_DIR = os.path.abspath(os.path.dirname(__file__))
STATIC_ROOT = os.path.join(APP_DIR, 'static/')
STATIC_URL = 'http://192.168.1.141:44/static/'
TEMPLATE_DIRS = (
os.path.join(APP_DIR, 'templates/')
)

urls.py


from django.conf.urls.defaults import patterns, include, url

urlpatterns = patterns('',
(r'^$', 'hydra.views.index'),
)



The above settings works.


Thanks

Madhu













On May 31, 9:44 am, Praveen Krishna R 
wrote:
> *Pasting one of my earlier replies to the same question*
> ***
> *
> *Please check django official docs to find out how static files are served
> on production and development server.
>
> in the dev server include a similiar snippet into your projects
> urls.py, urlpatterns:
>
> (r'^site_media/(?P.*)$', 'django.views.static.serve',{'document_root':
> 'D:/djangoprojects/praveensprofile/templates/static'}),
>
> and in the templates something similar to the below text.
> 
>
> *
>
>
>
>
>
>
>
>
>
> On Mon, May 30, 2011 at 1:57 PM, Alagu Madhu  wrote:
> > urls.py
>
> > from django.conf.urls.defaults import patterns, include, url
>
> > urlpatterns = patterns('',
> >    (r'^$', 'hydra.views.index'),
> >    )
>
> > On May 30, 12:28 pm, Praveen Krishna R 
> > wrote:
> > > *could you dump your urls.py ?
> > > *
>
> > > On Mon, May 30, 2011 at 12:19 PM, Alagu Madhu  wrote:
> > > > Hi,
>
> > > > sample/
> > > >                     static/
> > > >                    js/jquery.1.6.1.min.js
> > > >                 css/
>
> > > > settings.py
>
> > > > APP_DIR = os.path.abspath(os.path.dirname(__file__))
> > > > STATIC_ROOT = os.path.join(APP_DIR, 'static/')
> > > > STATIC_URL = '/static/'
> > > > INSTALLED_APPS = (
> > > >    'django.contrib.auth',
> > > >    'django.contrib.contenttypes',
> > > >    'django.contrib.sessions',
> > > >    'django.contrib.sites',
> > > >    'django.contrib.messages',
> > > >    'django.contrib.staticfiles',
> > > > )
>
> > > > urls.py
>
> > > > urlpatterns = patterns('',
> > > >    (r'^$', 'hydra.views.index'),
> > > > )
>
> > > >http://192.168.1.141:44/static/js/jquery.1.6.1.min.js
>
> > > > Page not found (404)
> > > > 'js\jquery.1.6.1.min.js' could not be found
>
> > > > Thanks
>
> > > > Madhu
>
> > > > On May 24, 9:44 pm, shofty  wrote:
> > > > > ignore that last comment, im clearly behind a version!
>
> > > > > not sure why you're needing to static.serve the static files, if
> > > > > you're on django 1.3 it does that bit for you.
>
> > > > > On May 24, 9:22 am, AlaguMadhu wrote:
>
> > > > > > Hi,
>
> > > > > > sample/
> > > > > >           media/
> > > > > >                     js/jquery.1.6.1.min.js
> > > > > >                  css/
> > > > > >            static/
> > > > > >                     js/jquery.1.6.1.min.js
> > > > > >                  css/
>
> > > > > > settings.py
>
> > > > > > import os
> > > > > > PROJECT_DIR = os.path.abspath(os.path.dirname(__file__))
> > > > > > MEDIA_ROOT = os.path.join(PROJECT_DIR, 'media/')
> > > > > > MEDIA_URL = '/media/'
> > > > > > STATIC_ROOT = os.path.join(PROJECT_DIR, 'static/')
> > > > > > STATIC_URL = '/static/'
>
> > > > > > urls.py
>
> > > > > > urlpatterns = patterns('',
> > > > > >     (r'^media/(?P.*)$', 'django.views.static.serve',
> > > > > > {'document_root': settings.MEDIA_ROOT}),
> > > > > >     (r'^static/(?P.*)$', 'django.views.static.serve',
> > > > > > {'document_root': settings.STATIC_ROOT}),
>
> > > > > >http://192.168.1.141:44/static/js/jquery.1.6.1.min.js
>
> > > > > > Page not found (404)
> > > > > > 'js\jquery.1.6.1.min.js' could not be found
>
> > > > > > Thanks
>
> > > > > >Madhu
>
> > > > --
> > > > You received this message because you are subscribed to the Google
> > Groups
> > > > "Django users" group.
> > > > To post to this group, send email to django-users@googlegroups.com.
> > > > To unsubscribe from this group, send email to
> > > > django-users+unsubscr...@googlegroups.com.
> > > > For more options, visit this group at
> > > >http://groups.google.com/group/django-users?hl=en.
>
> > > --
> > > Thanks and Regards,
> > > *Praveen Krishna R*
>
> > --
> > You received this message because you are subscribed to the Google Groups
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> >http://groups.google.com/group/django-users?hl=en.
>
> --
> Thanks and Regards,
> *Praveen Krishna R*

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Re: python code works in command line but not in django

[Kann]

Hi All,

I apologize for now being specific enough. The java script should read
files in "tmp/medusa" and use "Medusa.jar" as the referenced class to
run. The result of the script should be a png image using data from
files inside "tmp/medusa"

I tested the java command via terminal and it worked fine. The PNG
image was created correctly.

I tested the python package using python shell by importing
MedusaConnector and run the "MedusaConnector.create_image()", and the
PNG image was created properly as well.

Therefore, I imported the Medusa package into my views.py and try to
run it using django. This time, the PNG file was created, but with and
empty image unlike those 2 previous test cases.

Really have no idea what's going on here...

Kann

On May 31, 10:48 am, bruno desthuilliers
 wrote:
> On May 31, 10:32 am, Lucian Nicolescu  wrote:
>
> > I don't think there's any way this could work.
>
> Oh yes ? Why so ?
>
> > From what I can tell
> > Kann is trying to invoke the java interpreter ...
>
> Indeed.
>
> > but he does it on
> > the server, not on the user's machine
>
> And ?
>
> > - that's why it only works when the two are the same.
>
> Please think twice before posting.
>
> The OP never talked about "code working on it's own machine and not on
> the production server", but about "code working from within the python
> shell and not from the views". Not quite the same problem.
>
> FWIW, nothing prevents a java interpreter from being launched on the
> same machine as the django app (it's even a rather common use case),
> and as long as everything is correctly deployed and the env, path and
> perms are ok there's no reason it shouldn't work as well on a dev
> workstation, staging server or production server.
>
> > So he should try to invoke it somehow else, maybe embed it in a html
> > page if it's a Applet or just link to the .jar file directly and
> > normally the Java machine will automatically pick it up (if installed
> > on the user's machine).
>
> What makes you think the java program is supposed to run on the user
> machine exactly ?

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Re: python code works in command line but not in django

[Lucian Nicolescu]

Hey Bruno,

Sorry if I misunderstood the initial posting, please enlighten me/us
with a solution for the problem.

Lucian

On Tue, May 31, 2011 at 11:48 AM, bruno desthuilliers
 wrote:
>
> On May 31, 10:32 am, Lucian Nicolescu  wrote:
>> I don't think there's any way this could work.
>
> Oh yes ? Why so ?
>
>> From what I can tell
>> Kann is trying to invoke the java interpreter ...
>
> Indeed.
>
>> but he does it on
>> the server, not on the user's machine
>
> And ?
>
>> - that's why it only works when the two are the same.
>
> Please think twice before posting.
>
> The OP never talked about "code working on it's own machine and not on
> the production server", but about "code working from within the python
> shell and not from the views". Not quite the same problem.
>
> FWIW, nothing prevents a java interpreter from being launched on the
> same machine as the django app (it's even a rather common use case),
> and as long as everything is correctly deployed and the env, path and
> perms are ok there's no reason it shouldn't work as well on a dev
> workstation, staging server or production server.
>
>
>> So he should try to invoke it somehow else, maybe embed it in a html
>> page if it's a Applet or just link to the .jar file directly and
>> normally the Java machine will automatically pick it up (if installed
>> on the user's machine).
>
> What makes you think the java program is supposed to run on the user
> machine exactly ?
>
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> http://groups.google.com/group/django-users?hl=en.
>
>

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Model 'Child' is inherited from 'Parent', trying to filter to get only Child results with Parent.objects.filter(...)

[robin]

Example code:

   class Parent(models.Model):
name = models.CharField(max_length='20',blank=True)

class Child(Parent):
pass

I want to get the result of Child.objects.all() but I DO NOT want to
use Child.
I want to use Parent instead, which I tried to do with:

Parent.objects.filter(child__isnull=False)

Which doesn't work and gives the result of Product.objects.all()
instead.
However If I do the following, it WORKS:

Parent.objects.filter(child__name__isnull=False)

Another way, if I insist on using
Parent.objects.filter(child__isnull=False), is to change the Child
model to the following:

class Child(models.Model):
parent = models.OneToOneField(Parent)

Then Parent.objects.filter(child__isnull=False) would WORK

The problem with the 2 solutions above is that filtering with
child__name__isnull looks hackish, and I don't want to change my Child
model to use OneToOneField.

So is there a better way?

Thanks,
Robin

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Re: python code works in command line but not in django

[bruno desthuilliers]

On May 31, 10:32 am, Lucian Nicolescu  wrote:
> I don't think there's any way this could work.

Oh yes ? Why so ?

> From what I can tell
> Kann is trying to invoke the java interpreter ...

Indeed.

> but he does it on
> the server, not on the user's machine

And ?

> - that's why it only works when the two are the same.

Please think twice before posting.

The OP never talked about "code working on it's own machine and not on
the production server", but about "code working from within the python
shell and not from the views". Not quite the same problem.

FWIW, nothing prevents a java interpreter from being launched on the
same machine as the django app (it's even a rather common use case),
and as long as everything is correctly deployed and the env, path and
perms are ok there's no reason it shouldn't work as well on a dev
workstation, staging server or production server.


> So he should try to invoke it somehow else, maybe embed it in a html
> page if it's a Applet or just link to the .jar file directly and
> normally the Java machine will automatically pick it up (if installed
> on the user's machine).

What makes you think the java program is supposed to run on the user
machine exactly ?

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Re: Can I perform an "alter table" to remove a "not null" constraint?

[Kirill Spitsin]

On Mon, May 30, 2011 at 09:52:27PM -0700, Gchorn wrote:
> It seems as though the default in Django when creating tables is to
> place a constraint that doesn't allow null values (contrary to what
> I've learned is the default for SQL in general).  I have a model which
> has a date attribute, and which I now want to be able to hold null
> values, but when I tried doing this by adding 'null = True' and 'blank
> = True' to the model's field options, Django generates a

Use South (http://south.aeracode.org/).

Or you can run ./manage.py dbshell, and ALTER TABLE yourself, for
example, for PostgreSQL::

ALTER TABLE  ALTER COLUMN  DROP NOT NULL;

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Kirill Spitsin

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Re: python code works in command line but not in django

[Lucian Nicolescu]

I don't think there's any way this could work. From what I can tell
Kann is trying to invoke the java interpreter ... but he does it on
the server, not on the user's machine - that's why it only works when
the two are the same.

So he should try to invoke it somehow else, maybe embed it in a html
page if it's a Applet or just link to the .jar file directly and
normally the Java machine will automatically pick it up (if installed
on the user's machine).

Lucian

On Tue, May 31, 2011 at 10:20 AM, bruno desthuilliers
 wrote:
>
>
> On May 30, 3:54 pm, Kann  wrote:
>> Dear all,
>>
>> I tried using python to execute some external java program in my code.
>> My problem is the os.system(cmd) was not working properly
>
> "not working properly" is possibly not the most informative
> description of your problem... What happens ? Get a traceback ? If so,
> please post it (here or anywhere we can read it). Else please explain
> what happens exactly.
>
>> when the
>> code was included into some view in views.py. However, executing the
>> code from terminal worked just fine. I am not sure what is wrong here.
>
> Very probably a permissions or env problem.
>
>>  this is from my medusa package
>>
>>  1 import os
>>  2
>>  3 def create_image():
>>  4     path = os.path.abspath('tmp/medusa')
>>  5     medusa = os.path.abspath('mirnaworkbench/Medusa/Medusa.jar')
>>  6     cmd = str('java -cp ' + medusa + '
>> medusa.batchoperations.BatchOperations ' + path)
>
> OT: string concatenation yield a string object, so you don't need to
> try and make a string from it. Also, Python as good support for string
> formatting, which is usually more readable than string concatenation.
>
>>  7     os.system(cmd)
>>
>
> And ? What happens ?
>
> --
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>

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Re: python code works in command line but not in django

[bruno desthuilliers]

On May 30, 3:54 pm, Kann  wrote:
> Dear all,
>
> I tried using python to execute some external java program in my code.
> My problem is the os.system(cmd) was not working properly

"not working properly" is possibly not the most informative
description of your problem... What happens ? Get a traceback ? If so,
please post it (here or anywhere we can read it). Else please explain
what happens exactly.

> when the
> code was included into some view in views.py. However, executing the
> code from terminal worked just fine. I am not sure what is wrong here.

Very probably a permissions or env problem.

>  this is from my medusa package
>
>  1 import os
>  2
>  3 def create_image():
>  4     path = os.path.abspath('tmp/medusa')
>  5     medusa = os.path.abspath('mirnaworkbench/Medusa/Medusa.jar')
>  6     cmd = str('java -cp ' + medusa + '
> medusa.batchoperations.BatchOperations ' + path)

OT: string concatenation yield a string object, so you don't need to
try and make a string from it. Also, Python as good support for string
formatting, which is usually more readable than string concatenation.

>  7     os.system(cmd)
>

And ? What happens ?

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Re: admin site search field

[delegbede]

First, you did enclose doc properly. You wrote 'doc instead of 'doc'.
Sort that first. I'm however not suggesting that is the solution.
Regards.
Sent from my BlackBerry wireless device from MTN

-Original Message-
From: podio 
Sender: django-users@googlegroups.com
Date: Mon, 30 May 2011 16:24:10 
To: Django users
Reply-To: django-users@googlegroups.com
Subject: admin site search field

Hi, I'm new and I'm trying to make an app that have a field, pointing
to a record of the same object class. How can a make django has a
search form and show the record of the class on a popup window like
http://demoweb.cibernatural.com/admin/gestion/presupuesto/add/ (user
and password demo:demo) but pointing to the same class


class afiliado(models.Model):
def __unicode__(self):
return self.nombre
nombre = models.CharField("Nombre",max_length=200)
fecha_nac  = models.DateField("Fecha Nacimiento")
doc = models.CharField("Documento",max_length=20,blank =True)
obra_social = models.ForeignKey(obra_sociale)
caracter = models.ForeignKey(caractere)
tipo = models.ForeignKey(tipo)
titular = models.CharField(max_length=200) > this
field


class AfiliadoAdmin(admin.ModelAdmin):
fieldsets = [
(None   ,{'fields':
['nombre','fecha_nac','DOCN','Nacionalidad']}),
('Datos Generales'  ,{'fields':
['obra_social','caracter','tipo',"titular",'Matricula','fecha_ing']}),
('Datos de contacto',{'fields':
['Direccion',"CP","Ciudad","Provincia","Tel1","Tel2","Email"]}),
]
list_display = ('nombre',"tipo")
list_filter = ['Ciudad']
search_fields = ['nombre','doc]


Thansk!

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Re: how to implement a data grid? (or populate inlineformset with initial data)

[jai_python]

Hi,
Long back i had used Dojo data grid, plz go through my blog
http://jayapal-d.blogspot.com/2009/08/dojo-datagrid-with-editable-cells-in.html

I am sure that we can do with jquery.

Lemme know if u required any help.

Thanks,
Jayapal

On May 31, 6:39 am, snfctech  wrote:
> I want to display a list of records that have some editable fields and
> some readonly fields, as well as asynchronously add new records to the
> list.  I thought the way to start would be with an InlineFormSet - but
> I can't figure out how to populate my formset with initial data.  E.g.
> MyInlineFormset(queryset=myquery.all()) or
> MyInlineFormset(data=myquery.vales()) doesn't do the trick.
>
> Can someone steer me in the right direction?
>
> Thanks.

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Re: python threads and django views

[Subhranath Chunder]

Using the web-server to make such a request to open 10,000 odd URLs seems
unrealistic approach. Rather make a separate process to do the same.

Thanks,
Subhranath Chunder.

On Mon, May 30, 2011 at 11:29 PM, rahul jain wrote:

> All,
>
> I would like to know how to do this?
>
> For example, in my views I have to visit 10,000 websites (make url
> connection).   Each of those connections are independent connections.
> I would like to hit them as quickly as possible. Then return an
> http-response with some results.
>
> I have few questions now
>
> Obviously, I cannot hit these sites sequentially, that will take forever.
> Also, I believe its not possible, Django, put response time-out for each of
> those view responses!
>
> Creating 10,000 threads also is not a good idea.Therefore, I created queue
> based threads.
> I created 100 working threads and infinite size queue (i am not sure if
> this is a good idea)
> But receiving max URL connection error!
>
> How to fix this "max URL connection error" ? In addition, any tips for
> correctly implementing threads in django will be very helpful.
> Also, how to set the max timeout for http-responses  (django views) ?
>
> Thanks.
>
> Rahul
>
>
>
>
>
>  --
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Re: Serving static file on Windows

[Praveen Krishna R]

*Pasting one of my earlier replies to the same question*
***
*
*Please check django official docs to find out how static files are served
on production and development server.

in the dev server include a similiar snippet into your projects
urls.py, urlpatterns:

(r'^site_media/(?P.*)$', 'django.views.static.serve',{'document_root':
'D:/djangoprojects/praveensprofile/templates/static'}),

and in the templates something similar to the below text.


*
On Mon, May 30, 2011 at 1:57 PM, Alagu Madhu  wrote:

> urls.py
>
> from django.conf.urls.defaults import patterns, include, url
>
>
> urlpatterns = patterns('',
>(r'^$', 'hydra.views.index'),
>)
>
>
>
>
>
>
> On May 30, 12:28 pm, Praveen Krishna R 
> wrote:
> > *could you dump your urls.py ?
> > *
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > On Mon, May 30, 2011 at 12:19 PM, Alagu Madhu  wrote:
> > > Hi,
> >
> > > sample/
> > > static/
> > >js/jquery.1.6.1.min.js
> > > css/
> >
> > > settings.py
> >
> > > APP_DIR = os.path.abspath(os.path.dirname(__file__))
> > > STATIC_ROOT = os.path.join(APP_DIR, 'static/')
> > > STATIC_URL = '/static/'
> > > INSTALLED_APPS = (
> > >'django.contrib.auth',
> > >'django.contrib.contenttypes',
> > >'django.contrib.sessions',
> > >'django.contrib.sites',
> > >'django.contrib.messages',
> > >'django.contrib.staticfiles',
> > > )
> >
> > > urls.py
> >
> > > urlpatterns = patterns('',
> > >(r'^$', 'hydra.views.index'),
> > > )
> >
> > >http://192.168.1.141:44/static/js/jquery.1.6.1.min.js
> >
> > > Page not found (404)
> > > 'js\jquery.1.6.1.min.js' could not be found
> >
> > > Thanks
> >
> > > Madhu
> >
> > > On May 24, 9:44 pm, shofty  wrote:
> > > > ignore that last comment, im clearly behind a version!
> >
> > > > not sure why you're needing to static.serve the static files, if
> > > > you're on django 1.3 it does that bit for you.
> >
> > > > On May 24, 9:22 am, AlaguMadhu wrote:
> >
> > > > > Hi,
> >
> > > > > sample/
> > > > >   media/
> > > > > js/jquery.1.6.1.min.js
> > > > >  css/
> > > > >static/
> > > > > js/jquery.1.6.1.min.js
> > > > >  css/
> >
> > > > > settings.py
> >
> > > > > import os
> > > > > PROJECT_DIR = os.path.abspath(os.path.dirname(__file__))
> > > > > MEDIA_ROOT = os.path.join(PROJECT_DIR, 'media/')
> > > > > MEDIA_URL = '/media/'
> > > > > STATIC_ROOT = os.path.join(PROJECT_DIR, 'static/')
> > > > > STATIC_URL = '/static/'
> >
> > > > > urls.py
> >
> > > > > urlpatterns = patterns('',
> > > > > (r'^media/(?P.*)$', 'django.views.static.serve',
> > > > > {'document_root': settings.MEDIA_ROOT}),
> > > > > (r'^static/(?P.*)$', 'django.views.static.serve',
> > > > > {'document_root': settings.STATIC_ROOT}),
> >
> > > > >http://192.168.1.141:44/static/js/jquery.1.6.1.min.js
> >
> > > > > Page not found (404)
> > > > > 'js\jquery.1.6.1.min.js' could not be found
> >
> > > > > Thanks
> >
> > > > >Madhu
> >
> > > --
> > > You received this message because you are subscribed to the Google
> Groups
> > > "Django users" group.
> > > To post to this group, send email to django-users@googlegroups.com.
> > > To unsubscribe from this group, send email to
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> > > For more options, visit this group at
> > >http://groups.google.com/group/django-users?hl=en.
> >
> > --
> > Thanks and Regards,
> > *Praveen Krishna R*
>
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