Can't do any manipulation on a db object

[guruyaya]

I'm kinda new to django, and python, so I'm probably gonna make myself
look a bit stupid. Here goes anyway:
As a simple django (1.0) project, (using python 2.6) I've decided to
write a blog application. Here it goes:

blog/urls.py
--
from django.conf.urls.defaults import *

urlpatterns = patterns('myblog.blog',
(r'','views.listposts'),
)

blog/models.py
---
from django.conf.urls.defaults import *

urlpatterns = patterns('myblog.blog',
(r'','views.listposts'),
)

blog/models.py

from django.db import models
from django.http import HttpResponse
from tinymce.widgets import TinyMCE
import re

class Post(models.Model):
title = models.CharField(max_length=200)
content = models.TextField()
pub_date = models.DateTimeField('date
written',auto_now_add=True, null=True)
change_date = models.DateTimeField('date
changed',auto_now=True, null=True)

def __unicode__(self):
return self.title

def save(self, force_insert=False, force_update=False):
... Here come some long lines of code I think is irrelevant, but ask
me if you think they are

blog/views.py
---
from django.shortcuts import render_to_response as RenderToResponse
from myblog.blog.models import Post
def listposts(request):
a = Post.objects.all()
a[0].title = 'hihi'
a[0].content = 'haha'
print a[0].title
print a[0].content
return RenderToResponse('blog/showlist.html',{'postlist': a});

blog/showlist.html
---
Hello

{% for post in postlist.all %}
{{ post.title }}
{{ post.content|safe }}
{% endfor %}


As you may have guest, I expected the first post title to be 'hihi'
and it's content to be 'haha'. Well... it's not. I still get the same
post I have in my database. Yet the "print" lines give me the right
post content in the server debug messages.

Any ideas?
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Reverse error in contrib.comments

[Brandon Taylor]

Hi everyone,

I'm using Django 1.0 and I'm attempting to add comments to a blog,
following along in the "Practical Django Projects" book.

The error is:
Reverse for '' with arguments '()'
and keyword arguments '{}' not found.

when {% comment_form_target %} is present in the template.

'django.contrib.comments' has been added to settings.py
(r'^comments/', include('django.contrib.comments.urls')), has been
added to my main urls.py

Here is my code, implemented on the entry_detail.html template for a
blog, using date-based generic views:

{% load comments %}
{% get_comment_form for object as form %}

{{ form }}


I see there is an closed ticket: http://code.djangoproject.com/ticket/8571.
I have cleared out all of my .pyc files as suggested, but I'm still
getting the template error. Can anyone offer any advice?

TIA,
Brandon
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S3Storage, Models, and Files...is this obvious?

[Info Cascade]

Hi --
Again, I'm new to Django (and for that matter, Python).

I am using the S3Storage module (and currently set default_storage to
S3Storage).

My model has a FileField which should store the file using S3 (because
S3Storage is the default).

I am creating an mp3 file using Popen, which is returning some
"content," that is the mp3 data.

Now, the question I have is how do I save the data to the model?

I think I need to pass the model a File object, but I'm not sure how I
get the data into a File object to pass to
Model.field.save().  I don't want to have to save it twice!

(And BTW, when I do an obj.save() on a model, so I have to re-get it or
something, in order to retrieve the auto-increment id?)

Okay, does anyone have an example of how to do this?  It would be a
great help!!!


Liam


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Timing is everything

[Info Cascade]

Hey,

I'm new to Django.  Be nice!
Is there some simple way to time the whole Django process, request to
response?
PHP has something like that.
I'd like to include that information in the response.

Any ideas?

Liam

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Error in django.contrib.comments with {% comment_form_target %}

[Brandon Taylor]

Hi everyone,

I'm using Django 1.0 and I'm attempting to add comments to a blog,
following along in the "Practical Django Projects" book.

The error is:
Reverse for '' with arguments '()'
and keyword arguments '{}' not found.

when {% comment_form_target %} is present in the template.

'django.contrib.comments' has been added to settings.py
(r'^comments/', include('django.contrib.comments.urls')), has been
added to my main urls.py

Here is my code, implemented on the entry_detail.html template for a
blog, using date-based generic views:

{% load comments %}
{% get_comment_form for object as form %}

{{ form }}


I see there is an closed ticket: http://code.djangoproject.com/ticket/8571.
I have cleared out all of my .pyc files as suggested, but I'm still
getting the template error. Can anyone offer any advice?

TIA,
Brandon
The form will render if I remove {% comment_form_target %
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Re: admin.site.register errors (due to user mistake)

[Malcolm Tredinnick]

On Tue, 2008-10-21 at 19:51 -0700, [EMAIL PROTECTED] wrote:
> If you make a boneheaded move such as creating a ModelAdmin class for
> a model that you forgot to include in your admin.py's model import
> statement, you get an error. But it's not the error you might expect.
> What happens is you get the "model already registered exception",
> citing the first model registered using admin.site.register().

That's kind of impressive. And not particularly helpful. Open a ticket
so we remember to fix it.

Regards,
Malcolm


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admin.site.register errors (due to user mistake)

[[EMAIL PROTECTED]]

If you make a boneheaded move such as creating a ModelAdmin class for
a model that you forgot to include in your admin.py's model import
statement, you get an error. But it's not the error you might expect.
What happens is you get the "model already registered exception",
citing the first model registered using admin.site.register().

I spent awhile looking around my app trying to see if I had indeed
registered the model in question more than once via imports, but
couldn't find it. When I fixed my error in the import statement,
everything was fine.

So definitely user error. But the error message Django displayed
didn't help guide me to the problem. Worthy of a ticket or no?

Derek Willis
[EMAIL PROTECTED]
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Re: Import error exception "No module named urls" when running from eclipse

[DragonSlayre]

Thanks for your help,

It turns out that it was a problem to do with the renaming
functionality not working properly in eclipse.  I tried renaming my
package - and that doesn't work for some reason, and then my hack
around caused a problem when I created a new package, which ultimately
stuffed up which package eclipse was looking in when launching the
app.

Is it *normal* for rename to not work properly for the packages in
eclipse using pydev?

My solution to this was to create a new project, with the package name
I wanted, and to import the code I was previously using.  If it's just
my version, then I should probably find out why my version doesn't
support rename.


Louis

On Oct 22, 2:03 pm, Jeff Anderson <[EMAIL PROTECTED]> wrote:
> DragonSlayre wrote:
> > Hi, I'm new to django/python, and I'm testing out eclipse for
> > development.
>
> > I'm using pydev, and managed to run my app, but then when I go to the
> > web page, I get:
>
> > ImportError at /time/
> > No module named urls
>
> You'll need to include the code for the view that is being called, and
> possibly your urls.py
> Do you have a urls.py in your project?
>
> Jeff Anderson
>
>  signature.asc
> < 1KViewDownload
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Re: callable upload_to problem

[Karen Tracey]

On Tue, Oct 21, 2008 at 7:42 PM, Brot <[EMAIL PROTECTED]> wrote:

>
> Is there nobody who can help me with my problem? Is this a bug and
> should I open a ticket or is it my fault?
>
>
It's either a bug or behavior that needs more explicit documentation.  The
problem is that upload_to is called when the field is saved (that is when
the form data is copied to the new/changed model instance), and the model is
saved field-by-field in (apparently, excepting for id which comes first) the
order they are declared in the model.  So, since your ImageField is declared
before desc, desc has not yet been set in the model instance when upload_to
is called.  If you switch the order of the fields in the model your
upload_to will be able to access the desc that has been entered in the form.

I tend to think it's a bug and file-type fields should be saved after
non-file fields, since the doc here:

http://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.models.FileField.upload_to

only mentions the primary id field as one you cannot rely on in upload_to.
But even if I'm wrong about that it deserves a ticket since either the code
should be fixed or the doc should mention this behavior.

Karen


> On 20 Okt., 22:05, Brot <[EMAIL PROTECTED]> wrote:
> > Hello,
> >
> > I am using the latest svn-revision 9236 and tried to use a callable in
> > the upload_to parameter of the ImageField.
> >
> > The explanation in the django-docs for the instance-parameter of a
> > callable says the following:
> >
> > > An instance of the model where the FileField is defined. More
> specifically, this is the particular
> > > instance where the current file is being attached.
> >
> > If I understand this right, I have access to all the input data of
> > this instance. If I have the following models.py
> >
> -
> > 01: from django.db import models
> > 02:
> > 03: def get_storage_path(instance, filename):
> > 04:""" defines the storage path for the photologue app """
> > 05:import os.path
> > 06:print "instance: %s" % (instance)
> > 07:print "desc: %s" % (instance.desc)
> > 08:return os.path.join('uploads', filename)
> > 09:
> > 10: class ImageModel(models.Model):
> > 11:image = models.ImageField('image', upload_to=get_storage_path)
> > 12:   desc = models.CharField(max_length=100)
> > 13:
> > 14:def __unicode__(self):
> > 15:return u'%s - %s' % (self.image, self.desc)
> >
> -
> > the print statement in line 7 should print all the data I inserted
> > into this variable in the admin. Is that right? In my case this is
> > always a empty string:
> >
> >
> -
> > [20/Oct/2008 21:52:47] "GET /admin/hp/imagemodel/add/ HTTP/1.1" 200
> > 2822
> > [20/Oct/2008 21:52:47] "GET /admin/jsi18n/ HTTP/1.1" 200 1915
> > instance:  -
> > desc:
> > [20/Oct/2008 21:52:54] "POST /admin/hp/imagemodel/add/ HTTP/1.1" 302 0
> > [20/Oct/2008 21:52:54] "GET /admin/hp/imagemodel/ HTTP/1.1" 200 1866
> >
> -
> >
> > Are there any suggestions?
> >
> > ~Bernd
> >
>

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Re: Import error exception "No module named urls" when running from eclipse

[Jeff Anderson]

DragonSlayre wrote:
> Hi, I'm new to django/python, and I'm testing out eclipse for
> development.
>
> I'm using pydev, and managed to run my app, but then when I go to the
> web page, I get:
>
> ImportError at /time/
> No module named urls
>   
You'll need to include the code for the view that is being called, and
possibly your urls.py
Do you have a urls.py in your project?

Jeff Anderson



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Re: Django on Apache (mod_python) administration cookie problem

[Graham Dumpleton]

On Oct 22, 10:52 am, "M.Ganesh" <[EMAIL PROTECTED]> wrote:
> Hi Daniel,
>
> I am also facing the same problem. I really can't understand the
> technicalities of the solution offered in this thread. Since you seemed
> to have solved the problem, can you please give a little more details on
> how to do it

Disabling the PHP mhash module is only a workaround even if it does
work.

The proper fix if it is this issue is to refresh your Python 2.4
installation to get fixed version from Debian repository, or even
perhaps upgrade to Python 2.5 and newer mod_python version which uses
Python 2.5.

Alternatively, disable PHP from Apache completely if you do not need
it.

Which of the three options don't you understand and are wanting more
detail for?

Graham

> Thanks in advance
>
> Regards Ganesh
>
> Daniel bodom_lx Graziotin wrote:
> > Thank you very much for your replies, Alvaro and Graham!
> > Removing php5-mhash solved the problem
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Import error exception "No module named urls" when running from eclipse

[DragonSlayre]

Hi, I'm new to django/python, and I'm testing out eclipse for
development.

I'm using pydev, and managed to run my app, but then when I go to the
web page, I get:

ImportError at /time/
No module named urls
Request Method: GET
Request URL:http://localhost:8080/time/
Exception Type: ImportError
Exception Value:
No module named urls
Exception Location: C:\python25\lib\site-packages\django\core
\urlresolvers.py in _get_urlconf_module, line 197
Python Executable:  C:\Python25\python.exe
Python Version: 2.5.2


I'm guessing that I probably need to include a library in eclipse or
something like that - any ideas???

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Re: Feature like "acts_as" in Django ORM or contrib ?

[ro60]

Also you may want to look at this one... Seems pretty good as well
(haven't used it personally though).

http://www.djangosnippets.org/snippets/884/



On Oct 21, 1:20 pm, ro60 <[EMAIL PROTECTED]> wrote:
> I've been working on an acts_as_list implementation for Django
> recently. I know gasp... I will prob be strung up by my toes for it.
>
> I work with Rails and Django both and like the way that the acts as
> list stuff works in Rails. The code is untested and there are some
> gaps that still need to be filled in (It's def not production ready
> yet) but this may help as a starting point. I plan to do some testing
> over the next couple of days and to flush out the obvious problems.
> It's not 100% the same but there are allot of functions in there that
> you will find familiar if you've worked with the Rails version. Would
> love any contributions or feedback if you have them.
>
> http://code.google.com/p/django-acts-as-list/
>
> Also you may want to check out the positional snippet. I used that as
> a starting point for my code. It may suffice for what you want to do
> and is def more flushed out.
>
> http://www.djangosnippets.org/snippets/259/
>
> On Oct 21, 3:13 am, "[EMAIL PROTECTED]"
>
> <[EMAIL PROTECTED]> wrote:
> > On 21 oct, 08:37, Daniel Roseman <[EMAIL PROTECTED]>
> > wrote:
>
> > >acts_asis a Ruby design pattern rather than a Python one. However,
> > > for the specific higher/lower functionality, look into 
> > > django-mptt:http://code.google.com/p/django-mptt/
>
> > Very good.
>
> > Do you know something to do :
>
> > * ordered list
> > * versionning
>
> > ?
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Re: Django on Apache (mod_python) administration cookie problem

[M.Ganesh]

Hi Daniel,

I am also facing the same problem. I really can't understand the 
technicalities of the solution offered in this thread. Since you seemed 
to have solved the problem, can you please give a little more details on 
how to do it

Thanks in advance

Regards Ganesh

Daniel bodom_lx Graziotin wrote:
> Thank you very much for your replies, Alvaro and Graham!
> Removing php5-mhash solved the problem
> >
>
>   


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Re: callable upload_to problem

[Brot]

Is there nobody who can help me with my problem? Is this a bug and
should I open a ticket or is it my fault?

~Bernd

On 20 Okt., 22:05, Brot <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I am using the latest svn-revision 9236 and tried to use a callable in
> the upload_to parameter of the ImageField.
>
> The explanation in the django-docs for the instance-parameter of a
> callable says the following:
>
> > An instance of the model where the FileField is defined. More specifically, 
> > this is the particular
> > instance where the current file is being attached.
>
> If I understand this right, I have access to all the input data of
> this instance. If I have the following models.py
> -
> 01: from django.db import models
> 02:
> 03: def get_storage_path(instance, filename):
> 04:    """ defines the storage path for the photologue app """
> 05:    import os.path
> 06:    print "instance: %s" % (instance)
> 07:    print "desc: %s" % (instance.desc)
> 08:    return os.path.join('uploads', filename)
> 09:
> 10: class ImageModel(models.Model):
> 11:    image = models.ImageField('image', upload_to=get_storage_path)
> 12:   desc = models.CharField(max_length=100)
> 13:
> 14:    def __unicode__(self):
> 15:        return u'%s - %s' % (self.image, self.desc)
> -
> the print statement in line 7 should print all the data I inserted
> into this variable in the admin. Is that right? In my case this is
> always a empty string:
>
> -
> [20/Oct/2008 21:52:47] "GET /admin/hp/imagemodel/add/ HTTP/1.1" 200
> 2822
> [20/Oct/2008 21:52:47] "GET /admin/jsi18n/ HTTP/1.1" 200 1915
> instance:  -
> desc:
> [20/Oct/2008 21:52:54] "POST /admin/hp/imagemodel/add/ HTTP/1.1" 302 0
> [20/Oct/2008 21:52:54] "GET /admin/hp/imagemodel/ HTTP/1.1" 200 1866
> -
>
> Are there any suggestions?
>
> ~Bernd
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Re: Python on Windows re-using old .pyc files?

[Graham Dumpleton]

On Oct 21, 10:51 pm, Thomas Guettler <[EMAIL PROTECTED]> wrote:
> Ulf Kronman schrieb:> I'm using Django trunk and I have set the 
> MaxRequestsPerChild 1
> > directive in httpd.conf. I'm running on Windows XP (sp3?).
>
> Here a guess:
>
> Apache creates several threads (or worker processes) and after one
> request the thread/process gets killed. But the other are still alive and
> have the old code loaded.

On Windows there is only one Apache worker process containing many
threads. Thus, the problem of a request going to another process with
older code loaded shouldn't be an issue. Even on UNIX that shouldn't
be an issue with MaxRequestsPerChild set to 1 unless specific effort
was put into to preload Django code at process startup using
PythonImport directive.

I did have a think about OP issue, but off the top of my head I
couldn't work out why they would see the behaviour they were seeing
unless Apache is a bit loose with its counting, or it is an oddity of
how a restart of Apache worker process on Windows works.

> Maybe you could trymod_wsgi. It is much more flexible.

On Windows, unlikely that mod_wsgi would make a difference as it only
provides embedded mode on Windows and so behaviour not much different
to mod_python.

> See "Time to deprecate mod_python":
>
> http://groups.google.com/group/modwsgi/browse_thread/thread/95c5de2b9...

Hmmm, I can see the subject line of that post coming back to haunt
me. :-(

I wasn't saying mod_python itself should be deprecated, but that the
hacks in mod_wsgi to get it to work in same process as mod_python
should be dropped. This would've meant that they couldn't be used
together, but would free up mod_wsgi to manage better how Python is
used and eliminate some shortcomings it has with being forced to do
things the mod_python way to cooperate with it.

Graham

Graham
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Re: Difficulty getting Django working with Apache and mod_python

[Graham Dumpleton]

On Oct 22, 2:23 am, projecktzero <[EMAIL PROTECTED]> wrote:
> On Oct 20, 4:17 pm, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
>
>
>
> > On Mon, Oct 20, 2008 at 5:15 PM, projecktzero <[EMAIL PROTECTED]>wrote:
> > > I'm pretty new to Django. I'm having trouble getting my Django
> > > app/web-site to run under Apache2 and Mod_Python. I'm running Django
> > > 0.96. I installed Apache2 and Mod_Python and tested both, and they
> > > seem to work properly.
>
> > > In my http.conf, I have the following:
>
> > > 
> > >    Python Path "['/usr/local/apache2/htdocs/hwsw2','/usr/lib/
> > > python2.3/site-packages/django'] + sys.path"
> > >    SetHandler python-program
> > >    PythonHandler django.core.handlers.modpython
> > >    SetEnv DJANGO_SETTINGS_MODULE hwsw2.settings
> > >    PythonDebug On
> > > 
>
> > > The file permissions appear to be correct.(apache owns the .py files
> > > and they are executable, the .html templates are all ready-only for
> > > the world.)
>
> > > Unfortunately, I get the following error:
>
> > > EnvironmentError: Could not import settings 'hwsw2.settings' (Is it on
> > > sys.path? Does it have syntax errors?): No module named hwsw2.settings
>
> > > Does anyone have any ideas on what I did to mis-configure this?
>
> > First, you've got a space in the PythonPath setting in your Location
> > directive. Every example I've seen has no space there so I don't think a
> > space is allowed (though I did not actually verify that a space breaks
> > things).
>
> > Second you've specified 'hwsw2' in both the PythonPath and the SetEnv for
> > the settings module, so the file names that will be searched for are
> > /usr/local/apache2/htdocs/hwsw2/hwsw2/settings.py, etc.  If you are going to
> > specify the settings module as hwsw2.settings then
> > '/usr/local/apache2/htdocs', without the trailing hwsw2, needs to be on your
> > python path.  Whether you need both directories on the path depends on how
> > you import things in your code. If you always specify hwsw2 in your imports
> > than you don't need to have it be specified explicitly in the python path,
> > just its parent.
>
> > Third you don't need to specify anything under site-packages (site-packages
> > is automatically searched) in the PythonPath, so you should remove
> > '/usr/lib/python2.3/site-packages/django' from the PythonPath setting.
>
> > Karen
>
> Thanks Karen
>
> I had caught the PythonPath issue after sending the post. Here's what
> worked:
>
> 
>     PythonPath "['/usr/local/apache2/htdocs'] + sys.path"
>     SetHandler python-program
>     PythonHandler django.core.handlers.modpython
>     SetEnv DJANGO_SETTINGS_MODULE hwsw2.settings
>     PythonDebug On
> 

It is bad practice to put Django source code under Apache document
root (htdocs). If you do this and Apache gets misconfigured, you can
expose all your source code to the world, including any sensitive
information in it like database passwords.

Graham
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Re: Getting latest ManyToMany related model

[Charlie Gunyon]

Nevermind, I think I figured it out.

On Oct 21, 3:13 pm, Charlie Gunyon <[EMAIL PROTECTED]> wrote:
> Hey everyone.  Is there a way to get the latest ManyToMany related
> model?  My models.py looks like this:
>
> class Conference(models.Model):
>     name = models.CharField(max_length=30, unique=True)
>
> class Team(models.Model):
>     name = models.CharField(max_length=30, unique=True)
>     conferences = models.ManyToManyField('Conference',
> related_name='teams', through='ConferenceMembership')
>
>     def _get_current_conference(self):
>         return self.conferences.latest()
>
>     conference = property(_get_current_conference)
>
> class Player(models.Model):
>     name = models.CharField(max_length=15, unique=True)
>     teams = models.ManyToManyField('Team', related_name='players',
> through='TeamMembership')
>
>     def _get_current_team(self):
>         return self.teams.latest()
>
>     team = property(_get_current_team)
>
> class ConferenceMembership(models.Model):
>     conference = models.ForeignKey('Conference')
>     team = models.ForeignKey('Team')
>     date_joined = models.DateField(auto_now_add=True)
>
>     class Meta:
>         get_latest_by = 'date_joined'
>
> class TeamMembership(models.Model):
>     team = models.ForeignKey('Team')
>     player = models.ForeignKey('Player')
>     date_joined = models.DateField(auto_now_add=True)
>
>     class Meta:
>         get_latest_by = 'date_joined'
>
> This is important because Teams can change Conferences, and Players
> can change Teams, but their stats while on those Teams/Conferences
> have to remain under those Teams/Conferences.
>
> When I try and create a Team in the Admin section, the following happy
> error comes up:
>
> Exception Type:         TemplateSyntaxError
> Exception Value:        Caught an exception while rendering: latest()
> requires either a field_name parameter or 'get_latest_by' in the model
>
> So I think, "Oh, I need to move those 'get_latest_by' declarations
> into the top-level classes".  So I change my models to look like this:
>
> class Conference(models.Model):
>     name = models.CharField(max_length=30, unique=True)
>
>     class Meta:
>         get_latest_by = 'date_joined'
>
> class Team(models.Model):
>     name = models.CharField(max_length=30, unique=True)
>     conferences = models.ManyToManyField('Conference',
> related_name='teams', through='ConferenceMembership')
>
>     class Meta:
>         get_latest_by = 'date_joined'
>
>     def _get_current_conference(self):
>         return self.conferences.latest()
>
>     conference = property(_get_current_conference)
>
> class Player(models.Model):
>     name = models.CharField(max_length=15, unique=True)
>     teams = models.ManyToManyField('Team', related_name='players',
> through='TeamMembership')
>
>     class Meta:
>         get_latest_by = 'date_joined'
>
>     def _get_current_team(self):
>         return self.teams.latest()
>
>     team = property(_get_current_team)
>
> class ConferenceMembership(models.Model):
>     conference = models.ForeignKey('Conference')
>     team = models.ForeignKey('Team')
>     date_joined = models.DateField(auto_now_add=True)
>
> class TeamMembership(models.Model):
>     team = models.ForeignKey('Team')
>     player = models.ForeignKey('Player')
>     date_joined = models.DateField(auto_now_add=True)
>
> But when trying to add another team, I get a different error:
>
> Exception Type:         TemplateSyntaxError
> Exception Value:        Cannot resolve keyword 'date_joined' into field.
> Choices are: _order, conferencemembership, conferences, name, teams
>
> So I then try to access class attributes:
>
> class Conference(models.Model):
>     name = models.CharField(max_length=30, unique=True)
>
>     class Meta:
>         get_latest_by = 'date_joined'
>
> class Team(models.Model):
>     name = models.CharField(max_length=30, unique=True)
>     conferences = models.ManyToManyField('Conference',
> related_name='teams', through='ConferenceMembership')
>
>     class Meta:
>         get_latest_by = 'conferencemembership.date_joined'
>
>     def _get_current_conference(self):
>         return self.conferences.latest()
>
>     conference = property(_get_current_conference)
>
> class Player(models.Model):
>     name = models.CharField(max_length=15, unique=True)
>     teams = models.ManyToManyField('Team', related_name='players',
> through='TeamMembership')
>
>     def _get_current_team(self):
>         return self.teams.latest()
>
>     team = property(_get_current_team)
>
> class ConferenceMembership(models.Model):
>     conference = models.ForeignKey('Conference')
>     team = models.ForeignKey('Team')
>     date_joined = models.DateField(auto_now_add=True)
>
> class TeamMembership(models.Model):
>     team = models.ForeignKey('Team')
>     player = models.ForeignKey('Player')
>     date_joined = models.DateField(auto_now_add=True)
>
> But I still get an error:
>
> Exception Type:         TemplateSyntaxError
> Exception 

Re: what is the status of inline unique_together non-fatal error messages?

[Karen Tracey]

On Tue, Oct 21, 2008 at 2:35 PM, bobhaugen <[EMAIL PROTECTED]> wrote:

>
> On Oct 21, 12:34 pm, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
> > Well then the next step I would try is testing out the current patch for
> > general model validation, which is ticket #6845:
> >
> > http://code.djangoproject.com/ticket/6845
> >
> > Status on this was most recently reported here, I think:
> >
> > http://groups.google.com/group/django-developers/browse_thread/thread...
>
> That status message says:
> > known Issues
> > =
> >
> > * InlineFormSet.save_as_new is broken
>
> I do see a change in the last patch
> http://code.djangoproject.com/attachment/ticket/6845/6845-against-9226.diff
> for BaseGenericInlineFormSet, to preserve the parent foreign key for
> validation.
> But I don't think that's what Admin uses.
>

I don't know -- this isn't a case I've looked at, and I haven't tried that
patch myself yet.  One other ticket I just noticed that you might want to
keep an eye on is:

http://code.djangoproject.com/ticket/8882

That may be the exact case you are concerned with and it may get fixed
sooner than overall model validation gets into the code, but I'm just
guessing, since I'm not actually working on either of them myself.

Karen

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Re: File upload progress bar for Django?

[john]

On Oct 20, 2008, at 12:22 PM, M Godshall wrote:

> Is anyone familiar with a django or python tutorial that shows how  
> to implement
> some kind of file upload progress bar?  Ideally I'd like to use
> jquery, but I'm open to anything at this point.  Any links or code
> examples would be greatly appreciated.

I couldn't find any tutorials, but it's come up on this list before:

http://groups.google.com/group/django-users/search?group=django-users=progress+bar

And there are a couple of good examples on djangosnippets.org:

http://djangosnippets.org/snippets/678
http://djangosnippets.org/snippets/679

Unfortunately they're not accessible at the moment.

Since it keeps coming up, I put together a demo app showing how the  
pieces fit together. It also shows how you could use nginx and its  
mod_uploadprogress instead, to avoid tying up your Django processes  
with slow uploads.

http://www.fairviewcomputing.com/blog/2008/10/21/ajax-upload-progress-bars-jquery-django-nginx/


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Permissions in template tags

[[EMAIL PROTECTED]]

Simple question: is it possible to access all user permissions in
template tags just as in regular templates through the {{ perms }}
context variable or do I need to manually pass the permissions are
template tag params? By default the perms map does not seem to work in
tags.
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Getting latest ManyToMany related model

[Charlie Gunyon]

Hey everyone.  Is there a way to get the latest ManyToMany related
model?  My models.py looks like this:

class Conference(models.Model):
name = models.CharField(max_length=30, unique=True)

class Team(models.Model):
name = models.CharField(max_length=30, unique=True)
conferences = models.ManyToManyField('Conference',
related_name='teams', through='ConferenceMembership')

def _get_current_conference(self):
return self.conferences.latest()

conference = property(_get_current_conference)

class Player(models.Model):
name = models.CharField(max_length=15, unique=True)
teams = models.ManyToManyField('Team', related_name='players',
through='TeamMembership')

def _get_current_team(self):
return self.teams.latest()

team = property(_get_current_team)

class ConferenceMembership(models.Model):
conference = models.ForeignKey('Conference')
team = models.ForeignKey('Team')
date_joined = models.DateField(auto_now_add=True)

class Meta:
get_latest_by = 'date_joined'

class TeamMembership(models.Model):
team = models.ForeignKey('Team')
player = models.ForeignKey('Player')
date_joined = models.DateField(auto_now_add=True)

class Meta:
get_latest_by = 'date_joined'

This is important because Teams can change Conferences, and Players
can change Teams, but their stats while on those Teams/Conferences
have to remain under those Teams/Conferences.

When I try and create a Team in the Admin section, the following happy
error comes up:

Exception Type: TemplateSyntaxError
Exception Value:Caught an exception while rendering: latest()
requires either a field_name parameter or 'get_latest_by' in the model

So I think, "Oh, I need to move those 'get_latest_by' declarations
into the top-level classes".  So I change my models to look like this:

class Conference(models.Model):
name = models.CharField(max_length=30, unique=True)

class Meta:
get_latest_by = 'date_joined'

class Team(models.Model):
name = models.CharField(max_length=30, unique=True)
conferences = models.ManyToManyField('Conference',
related_name='teams', through='ConferenceMembership')

class Meta:
get_latest_by = 'date_joined'

def _get_current_conference(self):
return self.conferences.latest()

conference = property(_get_current_conference)

class Player(models.Model):
name = models.CharField(max_length=15, unique=True)
teams = models.ManyToManyField('Team', related_name='players',
through='TeamMembership')

class Meta:
get_latest_by = 'date_joined'

def _get_current_team(self):
return self.teams.latest()

team = property(_get_current_team)

class ConferenceMembership(models.Model):
conference = models.ForeignKey('Conference')
team = models.ForeignKey('Team')
date_joined = models.DateField(auto_now_add=True)

class TeamMembership(models.Model):
team = models.ForeignKey('Team')
player = models.ForeignKey('Player')
date_joined = models.DateField(auto_now_add=True)

But when trying to add another team, I get a different error:

Exception Type: TemplateSyntaxError
Exception Value:Cannot resolve keyword 'date_joined' into field.
Choices are: _order, conferencemembership, conferences, name, teams

So I then try to access class attributes:

class Conference(models.Model):
name = models.CharField(max_length=30, unique=True)

class Meta:
get_latest_by = 'date_joined'

class Team(models.Model):
name = models.CharField(max_length=30, unique=True)
conferences = models.ManyToManyField('Conference',
related_name='teams', through='ConferenceMembership')

class Meta:
get_latest_by = 'conferencemembership.date_joined'

def _get_current_conference(self):
return self.conferences.latest()

conference = property(_get_current_conference)

class Player(models.Model):
name = models.CharField(max_length=15, unique=True)
teams = models.ManyToManyField('Team', related_name='players',
through='TeamMembership')

def _get_current_team(self):
return self.teams.latest()

team = property(_get_current_team)

class ConferenceMembership(models.Model):
conference = models.ForeignKey('Conference')
team = models.ForeignKey('Team')
date_joined = models.DateField(auto_now_add=True)

class TeamMembership(models.Model):
team = models.ForeignKey('Team')
player = models.ForeignKey('Player')
date_joined = models.DateField(auto_now_add=True)

But I still get an error:

Exception Type: TemplateSyntaxError
Exception Value:Caught an exception while rendering: (1054, "Unknown
column 'conferencemembership.date_joined' in 'order clause'")

So my problem is that Conferences and Teams don't have dates to order
by, but their relationships do (when a Team joined a Conference and
when a Player joined a Team).  I don't understand how to order those
relationships to get 

Named URLs for Flatpages?

[erikcw]

Hi all,

I'm working on a project that uses flatpages pretty heavily.  I was
wondering if there was a way to use named urls with flatpages so that
I can use reverse() in my other views and {% url flat_privacy_policy
%} in my templates.

I haven't been able to find anything helpful in the docs so far.  Any
ideas?

Thanks!
Erik
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Re: Creating a system with multiple types of users

[Mozey]

Well, django user auth has groups implemented.

"It handles user accounts, groups, permissions and cookie-based user
sessions." (http://docs.djangoproject.com/en/dev/topics/auth/?
from=olddocs)

How can you effectively separate their views. Separate your apps based
on their nature, not based on who is going to be using them. Once you
do that, you can lock down all of your views trivially.

Now, one thing, i did'nt understand your problem in great details,
BUT, it seems to me that you just want to inherit the User class and
add a bunch of fields to it to get what you want done.


On Oct 21, 2:39 pm, itsnotvalid <[EMAIL PROTECTED]> wrote:
> I am going to help some people making a website that has a few admins,
> a crowd of service providers (individuals) and customers. There could
> be agents who invites people to become service providers or customers
> as well.
>
> Looking at the user system provided by django, and as a new programmer
> to django, I am not sure how can I separate different kinds of user
> here. I actually want to make it look like that different people login
> in different location, and do not share the same view after they
> logged in.
>
> So I am thinking a model schema like this:
>
> Users (as usual)
>
> Providers(link to a specific user, one-to-one)
>
> Customers(link to a specific user, many-to-one, as one user may find
> services for more that one actual person)
>
> Agents(link to a specific user, one-to-one)
>
> But how effectively can I separate their views? By defining different
> apps? Any other suggestions?
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Creating a system with multiple types of users

[itsnotvalid]

I am going to help some people making a website that has a few admins,
a crowd of service providers (individuals) and customers. There could
be agents who invites people to become service providers or customers
as well.

Looking at the user system provided by django, and as a new programmer
to django, I am not sure how can I separate different kinds of user
here. I actually want to make it look like that different people login
in different location, and do not share the same view after they
logged in.

So I am thinking a model schema like this:

Users (as usual)

Providers(link to a specific user, one-to-one)

Customers(link to a specific user, many-to-one, as one user may find
services for more that one actual person)

Agents(link to a specific user, one-to-one)

But how effectively can I separate their views? By defining different
apps? Any other suggestions?

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Re: File upload progress bar for Django?

[john Moylan]

There are working examples around. Basically get your server to report the
upload status to a javascript ui at intervals. Try searching the
djangoproject trac server - there is a link from there to a django uploader
project on google code that I have used in the past. I think it uses JQuery.

I'd search the the link myself to put it into this email but it's been a
very long dayneed sleep.

J

2008/10/21 jonknee <[EMAIL PROTECTED]>

>
> On Oct 20, 7:15 pm, Sascha Brossmann <[EMAIL PROTECTED]>
> wrote:
> > > Is anyone
> > > familiar with a django or python tutorial that shows how to implement
> > > some kind of file upload progress bar?
> >
> > Sorry, but the main magic in those uploaders is done via flash, not
> > via js or php. AFAIK there is currently no sane (though you may use
> > Java ;-)) way to do it otherwise.
>
> You can do it with some JavaScript and a server-side script written in
> most languages besides PHP (though I think there is now a way with an
> extension in 5.2). Perl is commonly used in the pre-made solutions as
> it's typically available and involves little setup.
>
> Flash is most likely easier as there are lots of pre-made solutions,
> but can have some session and compatibility issues (the recent Flash
> 10 update messed up a *lot* of upload forms around the web).
>
> You could make a Django upload handler to do the progress updates, the
> docs even talk about this:
>
> http://docs.djangoproject.com/en/dev/topics/http/file-uploads/
>
> >
>

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Re: login_required for imported apps

[bruno desthuilliers]

On 21 oct, 16:40, Heather <[EMAIL PROTECTED]> wrote:
> I completely agree.  Even the middleware solution doesn't seem quite
> right as it will check each page/request.

Well, that's the whole concept of middlewares, isn't it ?-)

> I've been thinking about
> this a lot and I wonder if maybe the only part that should be reusable
> is the models?

Nope. We've been 'reusing' quite a few django apps so far, and while
there are indeed a couple spots where reusability could be improved
(my own grip is with views returning full responses - often I'd need
just the context and the template name), I can testify that I've
rarely seen such a level of reusability in a web framework.

Also a Django app doesn't have to provide any models (or views or
whatever). There are some app that only provides a set of
templatetags, filters and context_processors.

>I don't know.  But since there is no way (that I know
> of) to use inheritance for apps, apps seem to be sort of limiting.

I wouldn't say so. Getting at the right balance between simplicity and
flexibilty is indeed a difficult task. What you can reuse from a given
app depends on three factors: Django itself, how the app has been
written, and how you want to reuse it. I do think that Django would
benefit from a couple more hooks here and there, but this often
requires some "collaboration" from the app. Something *you* (and I)
can do then is to try and add this part to the apps you want to reuse
and contribute it back - chances are the authors will be grateful.

Same goes for Django itself FWIW (I mean, actively contributing), but
since it has much greater potential impact, we just can hope to have
each and any of our patches accepted - and that's mostly a
GoodThing(tm), since experience has proven that
EverythingButTheKitchenSink is not a sound design principle.


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Re: Setting up Django on CentOS5 with flup and fastcgi

[Adam Nelson]

I've had great luck with wsgi.

http://code.djangoproject.com/wiki/django_apache_and_mod_wsgi
http://code.google.com/p/modwsgi/wiki/IntegrationWithDjango

This article relates how to reverse proxy that with Nginx if you're
interested (for speed, isolation):

http://vizualbod.com/articles/nginx-fastcgiwsgi-django-deployment

I haven't put any real load on this stuff yet but it sounds like wsgi
is a champ and it's certainly been great for me so far.

-Adam


On Oct 21, 1:55 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> yes i have read that..
>
> it seems that the .fcgi file does not read correctly. it just returns
> the actual text in the fcgi file. and when i try and run a development
> server you just get a timeout.
>
> On Oct 21, 5:05 pm, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
>
> > On Tue, Oct 21, 2008 at 11:50 AM, [EMAIL PROTECTED] <[EMAIL 
> > PROTECTED]>wrote:
>
> > > Hello,
>
> > > I am a webhosting provider that is trying to set up django on my
> > > server so that my clients can utilise it for their own programs.
>
> > > Although we do not allow ssh access our only ability to allow them
> > > access is to use fastcgi
>
> > > Although i am having trouble with doing so. Is there any tutorials
> > > that anyone knows of that will aid me to successfully setting up
> > > django to allow for shared hosting accounts to use it.
>
> > > I run on CentOS 5 and have python 2.4 with django 1.0 stable.
>
> > I assume you have read this page:
>
> >http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/
>
> > ?
>
> > Specifics of the trouble you are running into would help people provide
> > guidance, without specifics it's hard to say what might be going wrong.
>
> > Karen
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Better attack handling on Apache(wsgi)/Django servers

[adamiis111]

I'm starting a new project on Django 1.0/Pinax and I'm noticing that
these silly IIS attacks that I used to see in my previous logs show up
in a much more cluttered way through Apache(wsgi)/Django.  Is there a
best practices way to handle these types of attacks so that the attack
is logged (or not) and it only takes up one line?

A couple of solutions I can think of is to use Nginx or something else
as a proxy?  Otherwise, is there a mod_security template that is
available with Django-specific rulesets?

Thanks,
Adam

[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91] mod_wsgi
(pid=30283): Exception occurred within WSGI script '/var/www/pinax/
projects/complete_project/deploy/pinax.wsgi'.
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91] Traceback
(most recent call last):
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91]   File "/usr/
lib/python2.5/site-packages/django/core/handlers/wsgi.py", line 239,
in __call__
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91] response
= self.get_response(request)
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91]   File "/usr/
lib/python2.5/site-packages/django/core/handlers/base.py", line 67, in
get_response
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91] response
= middleware_method(request)
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91]   File "/usr/
lib/python2.5/site-packages/django/middleware/common.py", line 67, in
process_request
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91]
"settings.") % (new_url[0], new_url[1])
[Mon Oct 20 19:45:23 2008] [error] [client 200.162.46.91]
RuntimeError: You called this URL via POST, but the URL doesn't end in
a slash and you have APPEND_SLASH set. Django can't redirect to the
slash URL while maintaining POST data. Change your form to point to
75.101.151.190/_vti_bin/_vti_aut/author.dll/ (note the trailing
slash), or set APPEND_SLASH=False in your Django settings.

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problem testing application named "core"

[reyjexter]

When running manage.py test core, the test seem to run but no test
suite is executed. but when using plain manage.py test its okay. Is
this problem caused by the naming? thanks


rey
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Re: GeoDjango - Difficulty placing vector marker from DB

[Ariel Mauricio Nunez Gomez]

There are many ways to fix the projection issue, this is one (probably not
the best)

On your view code:
sites_list=sites_list.transform(900913)

Best,
Ariel.

On Tue, Oct 21, 2008 at 1:57 PM, Alfonso <[EMAIL PROTECTED]> wrote:

>
> Hey,
>
> Having great trouble getting geodjango/openlayers to display vector
> markers propery - everything I try positions the sample point off the
> coast of Africa (no matter if I change the vector position in
> geoadmin).  Here's what I'm working with - any help appreciated!:
>
> var lon = -2.900;
> var lat = 54.160;
> var zoom = 6;
> var map, baselayer;
> var wkt_f = new OpenLayers.Format.WKT();
> var v_markers = [{% for site in sites_list
> %}wkt_f.read('{{ site.point.wkt }}'){% if not forloop.last %},{% endif
> %}{% endfor %}];
> var marker_style = {'strokeColor' : 'green', 'fillColor' : 'green',
> 'fillOpacity' : 0.9, 'pointRadius' : 6}
> for (var i = 0; i < campsite_markers.length; i++){v_markers[i].style =
> marker_style;}
>
> function init(){
>var options = {
>'projection' : new OpenLayers.Projection("EPSG:900913"),
>'units': "m",
>'maxResolution': 156543.0339,
>'maxExtent': new
> OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
> 'controls':[new OpenLayers.Control.Navigation(), new
> OpenLayers.Control.ZoomPanel()],
>'numZoomLevels' : 20,
>};
>// base map
>map = new OpenLayers.Map('map', options);
>
>// - MS Virtual Earth Layer
> baselayer = new OpenLayers.Layer.VirtualEarth("Virtual Earth",
> { 'type': VEMapStyle.Street, "sphericalMercator": true});
>map.addLayer(baselayer);
>
>// Controls for the map
> map.addControl(new OpenLayers.Control.LayerSwitcher());
> map.addControl(new OpenLayers.Control.MousePosition());
>
>var layermarkers = new OpenLayers.Layer.Vector("markers");
>layermarkers.addFeatures(v_markers);
>
>// Vector Layers for the sites
>var LonLat = new OpenLayers.LonLat(lon, lat).transform(new
> OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
>
>map.addLayer(layermarkers);
>map.setCenter(LonLat, zoom);
>
> }
> >
>

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GeoDjango - Difficulty placing vector marker from DB

[Alfonso]

Hey,

Having great trouble getting geodjango/openlayers to display vector
markers propery - everything I try positions the sample point off the
coast of Africa (no matter if I change the vector position in
geoadmin).  Here's what I'm working with - any help appreciated!:

var lon = -2.900;
var lat = 54.160;
var zoom = 6;
var map, baselayer;
var wkt_f = new OpenLayers.Format.WKT();
var v_markers = [{% for site in sites_list
%}wkt_f.read('{{ site.point.wkt }}'){% if not forloop.last %},{% endif
%}{% endfor %}];
var marker_style = {'strokeColor' : 'green', 'fillColor' : 'green',
'fillOpacity' : 0.9, 'pointRadius' : 6}
for (var i = 0; i < campsite_markers.length; i++){v_markers[i].style =
marker_style;}

function init(){
var options = {
'projection' : new OpenLayers.Projection("EPSG:900913"),
'units': "m",
'maxResolution': 156543.0339,
'maxExtent': new
OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
'controls':[new OpenLayers.Control.Navigation(), new
OpenLayers.Control.ZoomPanel()],
'numZoomLevels' : 20,
};
// base map
map = new OpenLayers.Map('map', options);

// - MS Virtual Earth Layer
baselayer = new OpenLayers.Layer.VirtualEarth("Virtual Earth",
{ 'type': VEMapStyle.Street, "sphericalMercator": true});
map.addLayer(baselayer);

// Controls for the map
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.addControl(new OpenLayers.Control.MousePosition());

var layermarkers = new OpenLayers.Layer.Vector("markers");
layermarkers.addFeatures(v_markers);

// Vector Layers for the sites
var LonLat = new OpenLayers.LonLat(lon, lat).transform(new
OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());

map.addLayer(layermarkers);
map.setCenter(LonLat, zoom);

}
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Re: what is the status of inline unique_together non-fatal error messages?

[bobhaugen]

On Oct 21, 12:34 pm, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
> Well then the next step I would try is testing out the current patch for
> general model validation, which is ticket #6845:
>
> http://code.djangoproject.com/ticket/6845
>
> Status on this was most recently reported here, I think:
>
> http://groups.google.com/group/django-developers/browse_thread/thread...

That status message says:
> known Issues
> =
>
> * InlineFormSet.save_as_new is broken

I do see a change in the last patch
http://code.djangoproject.com/attachment/ticket/6845/6845-against-9226.diff
for BaseGenericInlineFormSet, to preserve the parent foreign key for
validation.
But I don't think that's what Admin uses.




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Re: Name of button pressed not in request.POST

[Glen]

I know this is an old thread. However, I found it when searching
online when I had the same problem. I did quite a bit of other
searching before I finally realized what was happening.

Yes, I see the same behavior where the 'submit.x' and 'submit.y'
values were in the request.POST dictionary, but there was no 'submit'
key. I am not certain if this is expected behavior for either normal
HTTP communication or Django, but the 'submit'  (or whatever name you
gave the submit button) key is not in the dictionary if the associated
value in HTML is ''.

In my particular case, I was doing something like this:



What's relevant is the 'value'. I had forgotten to send the
'cancel_button' variable, and therefore the value was ''. This means
the key does not show in the dictionary.

Although I don't know expected behavior, I would personally had
expected to see the 'submit' entry present in the request.POST, but
the value would have been ''. It may be a bug, but without knowing
expected behavior for both browsers and Django, I cannot say for
certain.



On Oct 4, 11:44 am, ydjango <[EMAIL PROTECTED]> wrote:
> I do not see the name of submit button in request.POST. it has all
> other form fields
>
>  if request.POST.has_key('save'):
>      does not work too
>
> Where can I find which button was pressed.
>
> 
> various fields...
>  
> other input buttons
> 
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Re: File upload progress bar for Django?

[jonknee]

On Oct 20, 7:15 pm, Sascha Brossmann <[EMAIL PROTECTED]>
wrote:
> > Is anyone
> > familiar with a django or python tutorial that shows how to implement
> > some kind of file upload progress bar?
>
> Sorry, but the main magic in those uploaders is done via flash, not
> via js or php. AFAIK there is currently no sane (though you may use
> Java ;-)) way to do it otherwise.

You can do it with some JavaScript and a server-side script written in
most languages besides PHP (though I think there is now a way with an
extension in 5.2). Perl is commonly used in the pre-made solutions as
it's typically available and involves little setup.

Flash is most likely easier as there are lots of pre-made solutions,
but can have some session and compatibility issues (the recent Flash
10 update messed up a *lot* of upload forms around the web).

You could make a Django upload handler to do the progress updates, the
docs even talk about this:

http://docs.djangoproject.com/en/dev/topics/http/file-uploads/

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Re: Setting up Django on CentOS5 with flup and fastcgi

[[EMAIL PROTECTED]]

yes i have read that..

it seems that the .fcgi file does not read correctly. it just returns
the actual text in the fcgi file. and when i try and run a development
server you just get a timeout.

On Oct 21, 5:05 pm, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
> On Tue, Oct 21, 2008 at 11:50 AM, [EMAIL PROTECTED] <[EMAIL PROTECTED]>wrote:
>
>
>
> > Hello,
>
> > I am a webhosting provider that is trying to set up django on my
> > server so that my clients can utilise it for their own programs.
>
> > Although we do not allow ssh access our only ability to allow them
> > access is to use fastcgi
>
> > Although i am having trouble with doing so. Is there any tutorials
> > that anyone knows of that will aid me to successfully setting up
> > django to allow for shared hosting accounts to use it.
>
> > I run on CentOS 5 and have python 2.4 with django 1.0 stable.
>
> I assume you have read this page:
>
> http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/
>
> ?
>
> Specifics of the trouble you are running into would help people provide
> guidance, without specifics it's hard to say what might be going wrong.
>
> Karen
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Re: what is the status of inline unique_together non-fatal error messages?

[Karen Tracey]

On Tue, Oct 21, 2008 at 12:36 PM, bobhaugen <[EMAIL PROTECTED]> wrote:

>
> On Oct 21, 10:59 am, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
> > Have you tried whatever scenario you are particularly interested in on
> 1.0
> > or current code?
> >
> > Though general model validation did not make it into 1.0, checking of
> unique
> > and unique_together was added in changeset [8805].  It may not cover the
> > inline/missing parent foreign key value case, though -- I haven't tried
> > that.
>
> Karen, thanks for the reply.  But no luck.
>
> Just downloaded revision 9240.
>
> Tried unique_together constraint in admin both plain and with a form
> that overrode clean().
> Parent foreign key value is still None.  Can't check unique_together.
>

Well then the next step I would try is testing out the current patch for
general model validation, which is ticket #6845:

http://code.djangoproject.com/ticket/6845

Status on this was most recently reported here, I think:

http://groups.google.com/group/django-developers/browse_thread/thread/6143408977f7ad/d09c52e1fb561469
?

If the case you are interested in isn't covered by the current patch and is
not called out as something that isn't handled yet in the status (which I
have not read closely, so I don't know one way or the other) you might want
to bring it up as an issue either in the ticket or as a response to that
status note.

Karen

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Re: Updating path and filename of ImageFieldFile

[Jon Biddle]

This code should work with Django 1.0 :

from django.db import models
from PIL import Image

class Photo(models.Model):
related_entry_id = models.ForeignKey(MyBlogEntryModel) # Use your
model object
photo = models.ImageField(upload_to="my_upload_path/") # Point to
your upload directory (No leading slash will point to a subfolder of
your media root)

def __str__(self):
return "%s" % (self.photo.name)

def _save_FIELD_file(self, field, filename, raw_contents,
save=True):
filename = "%s_%s" % (self.related_entry_id, filename)

super(Photo, self)._save_FIELD_file(field, filename,
raw_contents, save)

def save(self, size=(800, 800)):

if not self.id and not self.photo:
return

super(Photo, self).save()

filename = self.photo.path
image = Image.open(filename)
image.thumbnail(size, Image.ANTIALIAS)
image.save(filename)


On Oct 3, 5:43 pm, "Juanjo Conti" <[EMAIL PROTECTED]> wrote:
> Matt, I'd like to resize an uploaded image, while uploading i think...
> before it gets saved to the hard disk. How did you do it? In pre 1.0
> version I redefined _save_FIELD_file from my class.
>
> Thanks,
>
> 2008/8/14 mcordes <[EMAIL PROTECTED]>:
>
>
>
>
>
> > Thanks Andy,
>
> > Using the callable for upload_to is pretty interesting, but I don't
> > think it's usable for my purposes because I want the image file's name
> > to be XXX.png where XXX is the primary key for the model which, as the
> > documentation warns, may not be set when the upload_to callable gets
> > called.
>
> > I was previously doing this in the model's save method, but as I
> > mentioned after the filestorage change it's not clear how to modify
> > the path of an existing ImageFieldFile
>
> > As for my image processing it's pretty simple and consists of:
>
> > 1. resize image
> > 2. changing format to png
> > 3. applying relatively simple transformations on the image
> > 4. then saving it in a different directory with a name based on the
> > model's id, something like /path/i/want/.png
>
> > -Matt
>
> > On Aug 14, 12:18 am, "Andy Lei" <[EMAIL PROTECTED]> wrote:
> >> If the only post processing you need to do is changing the filename, you
> >> should pass a callable (like a function) as the upload_to parameter.
> >> for example:
>
> >> def get_upload_path(instance, filename):
> >>     return '/path/you/want/' + instance.name
>
> >> class MyModel(models.Model):
>
> >>     image = models.ImageField(upload_to=get_upload_path)
>
> >> Check out the documentation here:
>
> >>http://www.djangoproject.com/documentation/model-api/#filefield
>
> >> If you need to do other post processing, I think you want to take advantage
> >> of the pre / post save signals, or override save method on your model.  
> >> Just
> >> do the post processing in place though; i can't see a reason why you'd need
> >> to save it twice.
>
> >> -Andy
>
> >> On Wed, Aug 13, 2008 at 10:22 PM, mcordes <[EMAIL PROTECTED]> wrote:
>
> >> > Hello,
>
> >> > When uploading files, I'd like to upload them to a temporary location
> >> > and then after post processing move them to a different directory/
> >> > file. I had this working with the pre-filestorage code, but I'm not
> >> > sure what the correct procedure should now be.
>
> >> > My model looks like this:
>
> >> > >  class MyModel(models.Model):
> >> > >     image = models.ImageField(upload_to="images/tmp")
>
> >> > An uploaded file would then get stored here (relative to my media
> >> > root):
>
> >> > >  images/tmp/somefile.png
>
> >> > I'd like to be able to modify the associated MyModel instance so its
> >> > image field now has a name of
>
> >> > >   images/processed/XXX.png
>
> >> > I've tried using FieldFile.save as in
>
> >> > >  myModelInstance.image.save('new/path/new.png', File(file('path to
> >> > processed image file')))
>
> >> > and this mostly seems to work, but it throws out the 'new/path' part
> >> > of the name argument and my image ultimately gets stored here:
>
> >> > >  images/tmp/new.png
>
> >> > rather than where I want it: 'images/processed/new.png'.
>
> >> > What am I missing? Am I attacking this all wrong? What are your
> >> > suggestions?
>
> >> > -Matt
>
> --
> Juanjo Conti

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Re: Feature like "acts_as" in Django ORM or contrib ?

[ro60]

I've been working on an acts_as_list implementation for Django
recently. I know gasp... I will prob be strung up by my toes for it.

I work with Rails and Django both and like the way that the acts as
list stuff works in Rails. The code is untested and there are some
gaps that still need to be filled in (It's def not production ready
yet) but this may help as a starting point. I plan to do some testing
over the next couple of days and to flush out the obvious problems.
It's not 100% the same but there are allot of functions in there that
you will find familiar if you've worked with the Rails version. Would
love any contributions or feedback if you have them.

http://code.google.com/p/django-acts-as-list/

Also you may want to check out the positional snippet. I used that as
a starting point for my code. It may suffice for what you want to do
and is def more flushed out.

http://www.djangosnippets.org/snippets/259/

On Oct 21, 3:13 am, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> On 21 oct, 08:37, Daniel Roseman <[EMAIL PROTECTED]>
> wrote:
>
>
>
> >acts_asis a Ruby design pattern rather than a Python one. However,
> > for the specific higher/lower functionality, look into 
> > django-mptt:http://code.google.com/p/django-mptt/
>
> Very good.
>
> Do you know something to do :
>
> * ordered list
> * versionning
>
> ?
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Disable i18n for certain templates

[Armandas]

Hi,

I am using internationalization on my project. Recently I found out
that output from date filter is not in english. The point is, that I
use this to construct pubDate for my rss, like this:

{{ post.date|date:"D, d M Y H:i:s" }} GMT

and i18n just screws things up here. Is there any proper (not a hack)
way of disabling it in this particular template?

Thanks for any ideas.
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Re: what is the status of inline unique_together non-fatal error messages?

[bobhaugen]

On Oct 21, 10:59 am, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
> Have you tried whatever scenario you are particularly interested in on 1.0
> or current code?
>
> Though general model validation did not make it into 1.0, checking of unique
> and unique_together was added in changeset [8805].  It may not cover the
> inline/missing parent foreign key value case, though -- I haven't tried
> that.

Karen, thanks for the reply.  But no luck.

Just downloaded revision 9240.

Tried unique_together constraint in admin both plain and with a form
that overrode clean().
Parent foreign key value is still None.  Can't check unique_together.
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Re: Python on Windows re-using old .pyc files?

[Ulf Kronman]

Hi Thomas,

> Apache creates several threads (or worker processes) and after one
> request the thread/process gets killed. But the other are still alive and
> have the old code loaded.
>
> Maybe you could try mod_wsgi. It is much more flexible.

Thanks for the tip. It seems as this could be the cause of this
peculiar behaviour.

The funny thing is that I have never seen anything like this on my
(older) Mac OS X or Linux installations of Apache/mod_python.

I'll give mod_wsgi a try.

Thanks,
Ulf
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Re: PIL with python 2.5 on Leopard - [Solution]

[Heather]

Have you tried Macports?  If not, you should check it out.

On Oct 20, 2:11 pm, Francis <[EMAIL PROTECTED]> wrote:
> I had trouble installing PIL on my Mac with 10.5 Leopard.
>
> I always got an : "Upload a valid image. The file you uploaded was
> either not an image
> or a corrupted image."
>
> I searched to groups for answer but it seems that others were also
> having this problem.
>
> For those who are still looking for a solution, I found it while I was
> installing erlang on my system.
>
> You just have to follow these procedures, the only thing I changed,
> was that I used the latest labrairies  and the rc1 for libpng.
>
> http://www.libgd.org/DOC_Compiling_GD_on_Mac_OS_X_HOWTO
>
> Good luck.
>
> Francis
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Re: Setting up Django on CentOS5 with flup and fastcgi

[Karen Tracey]

On Tue, Oct 21, 2008 at 11:50 AM, [EMAIL PROTECTED] <[EMAIL PROTECTED]>wrote:

>
> Hello,
>
> I am a webhosting provider that is trying to set up django on my
> server so that my clients can utilise it for their own programs.
>
> Although we do not allow ssh access our only ability to allow them
> access is to use fastcgi
>
> Although i am having trouble with doing so. Is there any tutorials
> that anyone knows of that will aid me to successfully setting up
> django to allow for shared hosting accounts to use it.
>
> I run on CentOS 5 and have python 2.4 with django 1.0 stable.
>

I assume you have read this page:

http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/

?

Specifics of the trouble you are running into would help people provide
guidance, without specifics it's hard to say what might be going wrong.

Karen

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Setting up Django on CentOS5 with flup and fastcgi

[[EMAIL PROTECTED]]

Hello,

I am a webhosting provider that is trying to set up django on my
server so that my clients can utilise it for their own programs.

Although we do not allow ssh access our only ability to allow them
access is to use fastcgi

Although i am having trouble with doing so. Is there any tutorials
that anyone knows of that will aid me to successfully setting up
django to allow for shared hosting accounts to use it.

I run on CentOS 5 and have python 2.4 with django 1.0 stable.

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Re: what is the status of inline unique_together non-fatal error messages?

[Karen Tracey]

On Tue, Oct 21, 2008 at 11:39 AM, bobhaugen <[EMAIL PROTECTED]> wrote:

>
> I mean the normal displayable and user-correctable form validation
> errors, not the fatal database IntegrityError.
>
> I found
> http://groups.google.com/group/django-users/browse_thread/thread/f0e245366b02411b/df6d03f32eb37f93
> and
> http://www.djangosnippets.org/snippets/338/
> both more than a year old.
>
> In the first thread, Malcom Tredinnick says it's waiting for model-
> aware validation.
>
> The problem with overriding clean() in a form to do this is that for
> inlines, the parent foreign key value is missing, so you can't check
> for an existing record with the unique_together values.
>
> This thread in django-developers explains the problem in more detail,
> but also says "'wait for model-aware validation".  It's also a year
> old.
>
> http://groups.google.com/group/django-developers/browse_thread/thread/276fae9d4132225b/90324852d4e95426
>
> Any more progress, workarounds or tips?
>

Have you tried whatever scenario you are particularly interested in on 1.0
or current code?

Though general model validation did not make it into 1.0, checking of unique
and unique_together was added in changeset [8805].  It may not cover the
inline/missing parent foreign key value case, though -- I haven't tried
that.

Karen

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Re: Security Trimming and Roles

[killer barney]

awesome! thanks

On Oct 21, 6:20 am, "Dj Gilcrease" <[EMAIL PROTECTED]> wrote:
> http://docs.djangoproject.com/en/dev/topics/auth/?from=olddocs#id6http://docs.djangoproject.com/en/dev/topics/auth/#the-permission-requ...
>
> might be a good place to start reading
>
> Dj Gilcrease
> OpenRPG Developer
> ~~http://www.openrpg.com
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Re: comparing from two models in the same function (view) ?

[Net_Boy]

def comp(request):
form = ItemForm()
if request.method=="POST":
  form = ItemForm(request.POST, request.FILES)
  if form.is_valid():
  if item.price >= old.price and item.pub_date <= old.pub_date
item = form.save(commit=False)
item.seller = request.user
item.save()
form = ItemForm()
  else:
pass
return render_to_response(
  "add_item.html",
  {"form": form},context_instance=RequestContext(request))
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Re: MySQL to Oracle db engine

[Ian]

On Oct 21, 3:55 am, mbdtsmh <[EMAIL PROTECTED]> wrote:
> Hi All - I'm having trouble going from using a mysql database to an
> oracle database. The MySQL db settings work fine and I can validate &
> syncdb my tables into the database. However, when I change my
> settings.py to point to an oracle database then I get the following
> error (I have cx_Oracle installed)...
>
> python manage.py validate
> Traceback (most recent call last):

[SNIP]

> oracle/introspection.py", line 9, in DatabaseIntrospection
>     data_types_reverse = {
> AttributeError: 'module' object has no attribute 'NCLOB'
>
> Has anyone seen this before - not much on the web.
>
> Thanks,
>
> Martin

Hi Martin,

What version of cx_Oracle do you have installed?  As noted in the
installation guide, Django requires at least version 4.3.1.

-Ian
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what is the status of inline unique_together non-fatal error messages?

[bobhaugen]

I mean the normal displayable and user-correctable form validation
errors, not the fatal database IntegrityError.

I found 
http://groups.google.com/group/django-users/browse_thread/thread/f0e245366b02411b/df6d03f32eb37f93
and
http://www.djangosnippets.org/snippets/338/
both more than a year old.

In the first thread, Malcom Tredinnick says it's waiting for model-
aware validation.

The problem with overriding clean() in a form to do this is that for
inlines, the parent foreign key value is missing, so you can't check
for an existing record with the unique_together values.

This thread in django-developers explains the problem in more detail,
but also says "'wait for model-aware validation".  It's also a year
old.
http://groups.google.com/group/django-developers/browse_thread/thread/276fae9d4132225b/90324852d4e95426

Any more progress, workarounds or tips?
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comparing from two models in the same function (view) ?

[Net_Boy]

Hi,
   I am trying to make a view function to get the posted values and
make some comparison (if x.value >= y.value)..
where x is the model that I got it's values from the post
and   y is the other model .

so if anyone know how to do that I would be grateful :)


regards..
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Re: Difficulty getting Django working with Apache and mod_python

[projecktzero]

On Oct 20, 4:17 pm, "Karen Tracey" <[EMAIL PROTECTED]> wrote:
> On Mon, Oct 20, 2008 at 5:15 PM, projecktzero <[EMAIL PROTECTED]>wrote:
> > I'm pretty new to Django. I'm having trouble getting my Django
> > app/web-site to run under Apache2 and Mod_Python. I'm running Django
> > 0.96. I installed Apache2 and Mod_Python and tested both, and they
> > seem to work properly.
>
> > In my http.conf, I have the following:
>
> > 
> >    Python Path "['/usr/local/apache2/htdocs/hwsw2','/usr/lib/
> > python2.3/site-packages/django'] + sys.path"
> >    SetHandler python-program
> >    PythonHandler django.core.handlers.modpython
> >    SetEnv DJANGO_SETTINGS_MODULE hwsw2.settings
> >    PythonDebug On
> > 
>
> > The file permissions appear to be correct.(apache owns the .py files
> > and they are executable, the .html templates are all ready-only for
> > the world.)
>
> > Unfortunately, I get the following error:
>
> > EnvironmentError: Could not import settings 'hwsw2.settings' (Is it on
> > sys.path? Does it have syntax errors?): No module named hwsw2.settings
>
> > Does anyone have any ideas on what I did to mis-configure this?
>
> First, you've got a space in the PythonPath setting in your Location
> directive. Every example I've seen has no space there so I don't think a
> space is allowed (though I did not actually verify that a space breaks
> things).
>
> Second you've specified 'hwsw2' in both the PythonPath and the SetEnv for
> the settings module, so the file names that will be searched for are
> /usr/local/apache2/htdocs/hwsw2/hwsw2/settings.py, etc.  If you are going to
> specify the settings module as hwsw2.settings then
> '/usr/local/apache2/htdocs', without the trailing hwsw2, needs to be on your
> python path.  Whether you need both directories on the path depends on how
> you import things in your code. If you always specify hwsw2 in your imports
> than you don't need to have it be specified explicitly in the python path,
> just its parent.
>
> Third you don't need to specify anything under site-packages (site-packages
> is automatically searched) in the PythonPath, so you should remove
> '/usr/lib/python2.3/site-packages/django' from the PythonPath setting.
>
> Karen

Thanks Karen

I had caught the PythonPath issue after sending the post. Here's what
worked:


PythonPath "['/usr/local/apache2/htdocs'] + sys.path"
SetHandler python-program
PythonHandler django.core.handlers.modpython
SetEnv DJANGO_SETTINGS_MODULE hwsw2.settings
PythonDebug On

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Re: login_required for imported apps

[Heather]

I completely agree.  Even the middleware solution doesn't seem quite
right as it will check each page/request.  I've been thinking about
this a lot and I wonder if maybe the only part that should be reusable
is the models?  I don't know.  But since there is no way (that I know
of) to use inheritance for apps, apps seem to be sort of limiting.

On Oct 21, 4:53 am, bruno desthuilliers
<[EMAIL PROTECTED]> wrote:
> On 20 oct, 01:33, "James Bennett" <[EMAIL PROTECTED]> wrote:
>
> > On Sun, Oct 19, 2008 at 2:10 PM, bruno desthuilliers
>
> > <[EMAIL PROTECTED]> wrote:
> > > Indeed. But , OTHO, having to copy/paste a whole urls.py just to a add
> > > a simple decorator on the view functions is not really DRY.
>
> > Personally, I don't agree; writing code to do what you want, even if
> > it starts with copy/pasting someone else's code, isn't really
> > "repetition". Far too often on this list, people confuse "DRY" with
> > "never write any code at all".
>
> I don't think this last remark apply here. Of course, if what the OP
> wanted was to customize the third-part app's urls on a per-url basis,
> your answer would have been perfectly appropriate (and that's
> certainly what I would have answered too). But the use case here is
> somewhat different - it's about wrapping *all* the app's views with a
> *same* decorator, without doing _any other change_ to the url's
> patterns, args etc. I'm really surprised you don't see this as a
> repetition...
>
> "I hereby retrograde you to grade 36" !-)
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Re: File upload progress bar for Django?

[varikin]

On Oct 20, 6:15 pm, Sascha Brossmann <[EMAIL PROTECTED]>
wrote:
> > Is anyone
> > familiar with a django or python tutorial that shows how to implement
> > some kind of file upload progress bar?
>
> Sorry, but the main magic in those uploaders is done via flash, not
> via js or php. AFAIK there is currently no sane (though you may use
> Java ;-)) way to do it otherwise.

I also think some JavaScript libraries offer them to, like jQuery, but
I have tried any of that.
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ordering edit inlines in admin

[patrickk]

does anyone know about a clean way to order edit-inlines using the
admin-interface?

1. I´ve seen this and other javascript-based snippets:
http://simonwillison.net/2008/Sep/13/django/ ... it´s quite simple,
but it doesn´t really work. for example, if the formset isn´t valid,
the order is lost. every js-solution I´ve came across is not able to
deal with errors on the page ...

2. I´ve tried to use a custom formset (see code below). but even if
you define can_order for a formset, you won´t get the ordering_field
for the form.

class OrderedInline(BaseInlineFormSet):
def __init__(self, *args, **kwargs):
super(OrderedInline, self).__init__(*args, **kwargs)
self.can_delete = True
self.can_order = True

class PhotoGalleryInline(admin.StackedInline):
model = PhotoGalleryItem
extra = 3
formset = OrderedInline
fieldsets = .

3. in my opinion, using order_with_respect_to is the right way to go,
but it´s not supported by the admin-interface. if you use
order_with_respect_to, can_order is still false.

hope that anyone can give me a hint on this one. please note that I´m
seeking a clean solution and not some kind of weird hack.

thanks,
patrick.


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filtering pulldowns in django admin

[Matt Berg]

I realize there is probably a very simple solution for this but it has
been bothering me.

How do I filter a pulldown in the admin.

If I have an inline form, for example, I want to be able to limit
results in a pulldown to the parent object/form.

Thanks for the help.

Matt
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Re: Feature like "acts_as" in Django ORM or contrib ?

[shabda]

Ordering:

qs = Model.objects.filter(...).order_by('ordering_field')
ord_list = [el for el in qs]

Versioning:

code.google.com/p/django-rcsfield

(There are a few others, cant remember the names offhand.)

On Oct 21, 12:13 pm, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> On 21 oct, 08:37, Daniel Roseman <[EMAIL PROTECTED]>
> wrote:
>
>
>
> > acts_as is a Ruby design pattern rather than a Python one. However,
> > for the specific higher/lower functionality, look into 
> > django-mptt:http://code.google.com/p/django-mptt/
>
> Very good.
>
> Do you know something to do :
>
> * ordered list
> * versionning
>
> ?
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Re: Query: Field of model "not defined", but existing

[Karen Tracey]

On Tue, Oct 21, 2008 at 6:55 AM, Micha Pietsch <[EMAIL PROTECTED]> wrote:

>
> Hi,
> I've got a model "Note" with a DateTimeField "updated". I ran dbsync and
> entered some data but making the query
> "n = Note.objects.filter(owner=request.user.id
> ).exclude(updated__tle=datetime.datetime.now())"
> tells me that "updated" is "not defined". Without the exclude statement it
> works, I also imported "datetime".
> Anybody got an idea of what could be the problem?
>

It is a little hard to be sure because your problem description is not very
precise.

It is unclear if you created a model Note with a field named updated, or
added a field named updated to an existing model Note.  If the latter,
syncdb would not do anything -- syncdb only creates tables, it does not make
changes like adding/changing/removing columns.

The actual error you received (including traceback) would make it clear if
this was the problem, since it would show if it was the database or Django
code that objected to "updated" on the grounds it was "not defined".  This
condensing of the actual error you see into summary form makes it hard to
tell where it is really coming from, though.

Karen

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Re: referencing the slug of parent ('self')

[coderb]

thanks Daniel.

On Oct 21, 2:09 pm, Daniel Roseman <[EMAIL PROTECTED]>
wrote:
> On Oct 21, 1:13 pm, coderb <[EMAIL PROTECTED]> wrote:
>
> > def category(request, myslug):
> >     category_list = get_list_or_404(Category, parent=myslug)
>
> get_list_or_404(Category, parent__slug=myslug)
> --
> DR.
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Re: Accessing Sessions in Custom Tags

[Daniel Roseman]

On Oct 21, 7:58 am, "Eugene A." <[EMAIL PROTECTED]> wrote:
> Thanks for post, I searched this solve too long.
>
> But:
>
> I added in settings.py
> TEMPLATE_CONTEXT_PROCESSORS = (
>          'django.core.context_processors.request',
> )
> and it doesn't work, raises 'Failed lookup for key [request] in
> u"[{'sess': 'hello', 'mods': [,  all>]}]"'
> So 'request' field isn't in context variable. Why?


You need to pass context_instance in your render_to_response:
render_to_response(template, context,
context_instance=RequestContext(request))

See http://docs.djangoproject.com/en/dev/topics/http/shortcuts/
--
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Re: Security Trimming and Roles

[Dj Gilcrease]

http://docs.djangoproject.com/en/dev/topics/auth/?from=olddocs#id6
http://docs.djangoproject.com/en/dev/topics/auth/#the-permission-required-decorator

might be a good place to start reading

Dj Gilcrease
OpenRPG Developer
~~http://www.openrpg.com

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i18n translation in forms?

[chris]

Hi there,

I am trying to get I18N working for a website.  So far the language
selection, custom messages and their translation in templates using {%
trans "" %} etc. works like a charm.  However I can't quite figure out
how to get things like the Paginator (it displays  and
such stuff) or field names in forms generated with the forms module.

Code such as the following:

class SearchForm(forms.Form):
names = forms.CharField()
places = forms.CharField()
dates = forms.CharField()

This will field display on the form with labels like "Names",
"Places", "Dates" and so on, but I can't figure out how to tell the
i18n framework that this should be translated.
Any help appreciated!

Chris


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Re: referencing the slug of parent ('self')

[Daniel Roseman]

On Oct 21, 1:13 pm, coderb <[EMAIL PROTECTED]> wrote:

> def category(request, myslug):
>     category_list = get_list_or_404(Category, parent=myslug)

get_list_or_404(Category, parent__slug=myslug)
--
DR.
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Comments in reversed order

[jrivero]

Is possible obtain the comments of django.contrib in reversed order?

In old version:
{% get_free_comment_list for workgroups.workgroup group.id as
comment_list reversed %}

But in new version the templatetag not have control of this parameter.
The method for order is other?

Regards
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Security Trimming and Roles

[killer barney]

Loving django 1.0!

But one thing I notice they don't seem to have is security trimming
(where you can hide certain links based on the role permissions of a
user) or any sort of roles security.  Is there any solid way at going
about this that already exists in the django framework or is this
something we have to code up ourselves? I was thinking about it and
I've come up with a few possible directions.

1) Make an inherited request object and then running a function that
checks for proper permissions everytime a secure page is accessed.
I've seen some places do this, but it seems pretty cumbersome and
violates the DRY philosophy

2) Another idea is to edit the app.yaml to make sure login is
required
for a certain colleciton of pages, but what if you have multiple
roles? That doesnt solve what roles can access what funcitons.  And
if
different roles can see different things on a page, that doesn't
solve
that either.  So security trimming is still an issue

3) Another thing I'm considering is making a custom template tag that
maybe checks for security based on url.  This may be pretty tough,
but
seems the most viable in doing security trimming at the very least.
Are there any better approaches to this?

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referencing the slug of parent ('self')

[coderb]

hi,

I know this is probably easy, but ...

I have a category model:

class Category(models.Model):
name  = models.CharField(max_length=100, unique=True)
slug  = models.SlugField(max_length=100, unique=True)
parent= models.ForeignKey('self',blank=True,null=True)

...

the view function that browses categories should return a list of sub-
categories based on receiving the slug field of the parent value.
however, the parent is set to the id value, not the slug.

How do I associate the parent with the parents slug?

my view currently looks like this:

def category(request, myslug):
category_list = get_list_or_404(Category, parent=myslug)
return render_to_response('listings/browse.html',
{'category_list': category_list})

this expects the parents id in myslug, I obviously need the parents
slug.

any help appreciated, thanks.
(using django 1.0)
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Re: Python on Windows re-using old .pyc files?

[Thomas Guettler]

Ulf Kronman schrieb:
> I'm using Django trunk and I have set the MaxRequestsPerChild 1
> directive in httpd.conf. I'm running on Windows XP (sp3?).
>   
Here a guess:

Apache creates several threads (or worker processes) and after one
request the thread/process gets killed. But the other are still alive and
have the old code loaded.

Maybe you could try mod_wsgi. It is much more flexible.

See "Time to deprecate mod_python":

http://groups.google.com/group/modwsgi/browse_thread/thread/95c5de2b996e2f49/fe4f823a391ad954

HTH,
  Thomas Güttler

-- 
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de


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Re: i18n all languages not displayed

[bluefireredsky]

Great!

It works like a charm! Thank you.

On Oct 21, 12:33 pm, Jarek Zgoda <[EMAIL PROTECTED]> wrote:
> Wiadomość napisana w dniu 2008-10-21, o godz. 09:30, przez Jarek Zgoda:
>
>
>
>
>
> >> gettext = lambda s: s
>
> >> LANGUAGES = (
> >>            ('en', gettext('English')),
> >>            ('ta', gettext('Tamil')),
> >>            ('hi-IN', gettext('Hindi')),
> >> )
>
> >> My folder structure on the locale is as follows
>
> >> locale\en\LC_MESSAGES
> >> locale\hi-in\LC_MESSAGES
> >> locale\ta\LC_MESSAGES
>
> >> Any suggestions?
>
> > I suppose there is no Django translation for the language you cann't
> > get to work. There is "ta" translation, but not "hi". You might want
> > to check this list, the translations are located in your  
> > /
> > conf/locale directory.
>
> And of course, nothing should stop you from adding missing  
> translations and translation catalogs. :)
>
> --
> We read Knuth so you don't have to. - Tim Peters
>
> Jarek Zgoda, R, Redefine
> [EMAIL PROTECTED] Hide quoted text -
>
> - Show quoted text -

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Spliting a single result from a db

[[EMAIL PROTECTED]]

HI all,

I've just starting using django and am really impressed. In my simple
app I want to retrieve a single "article" from a  db and then display
it broken into reasonable length pages (either based on word count or
a specific markup in the text).  I'd really appreciate any pointers on
how I might try to achieve this? I think the built-in paginate seems
to work on multiple objects, so I'm not sure if I can use that?

thanks!

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Re: Accessing Sessions in Custom Tags

[Eugene A.]

Thanks for post, I searched this solve too long.

But:

I added in settings.py
TEMPLATE_CONTEXT_PROCESSORS = (
         'django.core.context_processors.request',
)
and it doesn't work, raises 'Failed lookup for key [request] in
u"[{'sess': 'hello', 'mods': [, ]}]"'
So 'request' field isn't in context variable. Why?

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Query: Field of model "not defined", but existing

[Micha Pietsch]

Hi,
I've got a model "Note" with a DateTimeField "updated". I ran dbsync and 
entered some data but making the query
"n = 
Note.objects.filter(owner=request.user.id).exclude(updated__tle=datetime.datetime.now())"
tells me that "updated" is "not defined". Without the exclude statement it 
works, I also imported "datetime". 
Anybody got an idea of what could be the problem?
-- 
Pt! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: 
http://www.gmx.net/de/go/multimessenger

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Can't validate a datetime ...

[dbee]

Getting an error when i try to validate a datetime ... help !

  Table "public.tarait1_teleint"
 Column  |   Type   |
Modifiers
-+--
+--
 id  | integer  | not null default
nextval('tarait1_teleint_id_seq'::regclass)
 business_name   | character varying(100)   | not null
 name| character varying(100)   |
 company_type| character varying(100)   | not null
 meeting_date| timestamp with time zone |
 city| character varying(100)   | not null
 address | text |
 phone   | character varying(20)| not null
 email   | character varying(75)|
 notes   | text |
 technical_notes | text |
 entry_date  | date |
 x_coord | numeric(12,6)|
 y_coord | numeric(12,6)|
 follow_up   | boolean  |
 call_back   | timestamp with time zone |
 business| integer  | not null default 0


# No
errors
if form.is_valid():

teleint = form.save(commit=False)

teleint.meeting_date = request.POST.get('meeting_date','')
teleint.call_back = request.POST.get('call_back','')


# Teleint
form
class
TeleIntForm(ModelForm):

class Meta:
model = TeleInt
# Excluding these will exclude them from form saving also
# You'll have to manually include them for the object
exclude = ('call_back','meeting_date')


ValidationError

Enter a valid date/time in -MM-DD HH:MM[:ss[.uu]] format.
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Re: cheeserater css reference

[coderb]

nevermind, solved - using  djangos - serving static pages - work
around

On Oct 18, 1:22 am, coderb <[EMAIL PROTECTED]> wrote:
> forgot to mention that I did actually change the template css
> references to match settings.py, but obviously still got it wrong. I'm
> using django 1.0 on win XP.
>
> thanks
>
> On Oct 18, 1:16 am, coderb <[EMAIL PROTECTED]> wrote:
>
> > hi all,
>
> > I'm learning django using a downloaded copy ofcheeserater (thanks
> > Jacob)
>
> > but am stuck at an early hurdle.
>
> > The template base.html has the following css references:
> >         http://media.jacobian.org/cheeserater/
> > reset.css" type="text/css">
> >         http://media.jacobian.org/cheeserater/
> >cheeserater.css" type="text/css">
>
> > I'm trying to change this template to reference the dowloaded project
> > css files located in
> >cheeserater/media/
>
> > my attempts by changing the settings.py  MEDIA_ROOT  and MEDIA_URL
> > values have all failed.
>
> > I know django docs mentions using media as a static class definition,
> > but thats not the waycheeserateris defined (I think), so if anyone
> > give me a quick pointer here, I'd really appreciate it.
>
> > thanks
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Re: is it possible to run 0.96 and 1.0 in parallel?

[Rachel Willmer]

Virtualenv - great, just what I've been looking for :-)

Thanks
Rachel

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Re: How to save/link/rename thumbnail in model

[mcordes]

Hello,

I'd suggest you also consider this app: http://code.google.com/p/sorl-thumbnail/
. It makes it very simple to have thumbnails of various sizes
associated with your image fields.

-Matt


On Oct 21, 2:10 am, krylatij <[EMAIL PROTECTED]> wrote:
> You can define image upload path at runtime (check manual for
> ImageField)
>
> def get_photo_path(instance, filename):
>     return 'static/upload_to/photos/%s' % instance.name
>
> class ProductImage(models.Model):
>     name = models.CharField(max_length=50)
>     file = models.ImageField(upload_to= get_photo_path)
>     ...
>
> In my projects i don't use additional field for thumbnails
> Because i need thumbnails in different sizes
> So i use property for that
>  # If i don't allready have thumbnail in this size i generate it
>  def _get_thumb_url(self, folder, size):
>         if not self.photo:
>             return '#'
>         upload_to = path.dirname(self.photo.path)
>         tiny = path.join(upload_to, folder,
> path.basename(self.photo.path))
>         tiny = path.normpath(tiny)
>         if not path.exists(tiny):
>             import Image
>             im = Image.open(self.photo.path)
>             im.thumbnail(size, Image.ANTIALIAS)
>             im.save(tiny, 'JPEG')
>         return path.join(path.dirname(self.photo.url), folder,
> path.basename(self.photo.path)).replace('\\', '/')
>
>   def get_thumb_url(self):
>         return self._get_thumb_url('thumb_40_40', (40,40))
>
>  def thumb(self):
>         link = self.get_thumb_url()
>         if link is None:
>             return 'NO IMAGE'
>         else:
>             return ' alt="tiny thumbnail image"/>' % (self.photo.url, link)
>  thumb.allow_tags = True
>
> So if i need thumbnail in my template i write this:
> {{ my_model.thumb }}
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MySQL to Oracle db engine

[mbdtsmh]

Hi All - I'm having trouble going from using a mysql database to an
oracle database. The MySQL db settings work fine and I can validate &
syncdb my tables into the database. However, when I change my
settings.py to point to an oracle database then I get the following
error (I have cx_Oracle installed)...

python manage.py validate
Traceback (most recent call last):
  File "manage.py", line 11, in ?
execute_manager(settings)
  File "/usr/local/django-versions/Django-1.0/django/core/management/
__init__.py", line 340, in execute_manager
utility.execute()
  File "/usr/local/django-versions/Django-1.0/django/core/management/
__init__.py", line 295, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/django-versions/Django-1.0/django/core/management/
base.py", line 77, in run_from_argv
self.execute(*args, **options.__dict__)
  File "/usr/local/django-versions/Django-1.0/django/core/management/
base.py", line 87, in execute
translation.activate('en-us')
  File "/usr/local/django-versions/Django-1.0/django/utils/translation/
__init__.py", line 73, in activate
return real_activate(language)
  File "/usr/local/django-versions/Django-1.0/django/utils/translation/
__init__.py", line 43, in delayed_loader
return g['real_%s' % caller](*args, **kwargs)
  File "/usr/local/django-versions/Django-1.0/django/utils/translation/
trans_real.py", line 209, in activate
_active[currentThread()] = translation(language)
  File "/usr/local/django-versions/Django-1.0/django/utils/translation/
trans_real.py", line 198, in translation
default_translation = _fetch(settings.LANGUAGE_CODE)
  File "/usr/local/django-versions/Django-1.0/django/utils/translation/
trans_real.py", line 181, in _fetch
app = getattr(__import__(appname[:p], {}, {}, [appname[p+1:]]),
appname[p+1:])
  File "/usr/local/django-versions/Django-1.0/django/contrib/admin/
__init__.py", line 1, in ?
from django.contrib.admin.options import ModelAdmin, HORIZONTAL,
VERTICAL
  File "/usr/local/django-versions/Django-1.0/django/contrib/admin/
options.py", line 5, in ?
from django.contrib.contenttypes.models import ContentType
  File "/usr/local/django-versions/Django-1.0/django/contrib/
contenttypes/models.py", line 1, in ?
from django.db import models
  File "/usr/local/django-versions/Django-1.0/django/db/__init__.py",
line 16, in ?
backend = __import__('%s%s.base' % (_import_path,
settings.DATABASE_ENGINE), {}, {}, [''])
  File "/usr/local/django-versions/Django-1.0/django/db/backends/
oracle/base.py", line 23, in ?
from django.db.backends.oracle.introspection import
DatabaseIntrospection
  File "/usr/local/django-versions/Django-1.0/django/db/backends/
oracle/introspection.py", line 7, in ?
class DatabaseIntrospection(BaseDatabaseIntrospection):
  File "/usr/local/django-versions/Django-1.0/django/db/backends/
oracle/introspection.py", line 9, in DatabaseIntrospection
data_types_reverse = {
AttributeError: 'module' object has no attribute 'NCLOB'

Has anyone seen this before - not much on the web.

Thanks,

Martin

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Adding a custom permission to the User model

[Benedict Verheyen]

Hi,

I'm trying to specify a custom permission on the User model.
I would use it to delegate control to users over certain models.

I have an admin.py file where i add this:

from django.contrib.auth.models import User
...
class UserAdmin(admin.ModelAdmin):
class Meta:
permissions = (
("create_user", "Create a user from the standard view"),
)

I can't add admin.site.register(User, UserAdmin) because then i get
a message that it's already registered.

When i do python manage.py syncdb i don't see anything written to the
db. The permission is also not visible from within the users part of the
admin site.

How can i add a custom permission to the standard User model?

Thanks,
Benedict


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Re: login_required for imported apps

[bruno desthuilliers]

On 20 oct, 01:33, "James Bennett" <[EMAIL PROTECTED]> wrote:
> On Sun, Oct 19, 2008 at 2:10 PM, bruno desthuilliers
>
> <[EMAIL PROTECTED]> wrote:
> > Indeed. But , OTHO, having to copy/paste a whole urls.py just to a add
> > a simple decorator on the view functions is not really DRY.
>
> Personally, I don't agree; writing code to do what you want, even if
> it starts with copy/pasting someone else's code, isn't really
> "repetition". Far too often on this list, people confuse "DRY" with
> "never write any code at all".

I don't think this last remark apply here. Of course, if what the OP
wanted was to customize the third-part app's urls on a per-url basis,
your answer would have been perfectly appropriate (and that's
certainly what I would have answered too). But the use case here is
somewhat different - it's about wrapping *all* the app's views with a
*same* decorator, without doing _any other change_ to the url's
patterns, args etc. I'm really surprised you don't see this as a
repetition...

"I hereby retrograde you to grade 36" !-)




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Authenticating static files against Django Auth with FastCGI

[MrJogo]

Hi,

I am using Django on my university webspace. I set it up by following
(and slightly modifying) the instructions on this page:
http://docs.djangoproject.com/en/dev/howto/deployment/fastcgi/#running-django-on-a-shared-hosting-provider-with-apache

Now I would like to protect certain static files by authenticating
against my Django user database; basically what's described here:
http://docs.djangoproject.com/en/dev/howto/apache-auth/.
Unfortunately, I do not have access to the httpd.conf. I can
put .htaccess files into the directories, but that's about it. How can
I get the same functionality? Thanks.
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Re: i18n all languages not displayed

[Jarek Zgoda]

Wiadomość napisana w dniu 2008-10-21, o godz. 09:30, przez Jarek Zgoda:

>> gettext = lambda s: s
>>
>> LANGUAGES = (
>>('en', gettext('English')),
>>('ta', gettext('Tamil')),
>>('hi-IN', gettext('Hindi')),
>> )
>>
>> My folder structure on the locale is as follows
>>
>> locale\en\LC_MESSAGES
>> locale\hi-in\LC_MESSAGES
>> locale\ta\LC_MESSAGES
>>
>> Any suggestions?
>
>
>
> I suppose there is no Django translation for the language you cann't
> get to work. There is "ta" translation, but not "hi". You might want
> to check this list, the translations are located in your  
> /
> conf/locale directory.


And of course, nothing should stop you from adding missing  
translations and translation catalogs. :)

-- 
We read Knuth so you don't have to. - Tim Peters

Jarek Zgoda, R, Redefine
[EMAIL PROTECTED]


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Re: i18n all languages not displayed

[Jarek Zgoda]

Wiadomość napisana w dniu 2008-10-21, o godz. 07:46, przez  
bluefireredsky:

> I am implementing an i18n for a web application. The customer requires
> support for certain Indian languages such as Hindi and Tamil. I had
> refered to http://www.i18nguy.com/unicode/language-identifiers.html
> for identifying the respective language codes. I am not able to get it
> working for Hindi, however Tamil works. Based on the above URL, the
> language code for tamil should be "ta-IN" and for hindi it should be
> "hi". For tamil, ta-IN does not work, but it works when i specify just
> "ta". I am unable to get it to work for hindi with either "hi" or "hi-
> IN". My languages in the settings.py file is as follows:
>
> gettext = lambda s: s
>
> LANGUAGES = (
> ('en', gettext('English')),
> ('ta', gettext('Tamil')),
> ('hi-IN', gettext('Hindi')),
> )
>
> My folder structure on the locale is as follows
>
> locale\en\LC_MESSAGES
> locale\hi-in\LC_MESSAGES
> locale\ta\LC_MESSAGES
>
> Any suggestions?



I suppose there is no Django translation for the language you cann't  
get to work. There is "ta" translation, but not "hi". You might want  
to check this list, the translations are located in your / 
conf/locale directory.

-- 
We read Knuth so you don't have to. - Tim Peters

Jarek Zgoda, R, Redefine
[EMAIL PROTECTED]


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Re: Feature like "acts_as" in Django ORM or contrib ?

[[EMAIL PROTECTED]]

On 21 oct, 08:37, Daniel Roseman <[EMAIL PROTECTED]>
wrote:
>
> acts_as is a Ruby design pattern rather than a Python one. However,
> for the specific higher/lower functionality, look into 
> django-mptt:http://code.google.com/p/django-mptt/

Very good.

Do you know something to do :

* ordered list
* versionning

?

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Re: Feature like "acts_as" in Django ORM or contrib ?

[James Bennett]

On Tue, Oct 21, 2008 at 12:45 AM, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:
> In Elixir, when I add acts_as_list(qualifier=qualify) in Model I can
> use move_higher, move_lower ... methods.

Be careful about confusing multiple things here; there are
applications available for Django which add features like this --
objects which behave like hierarchical lists/trees, taggable objects,
etc. -- and if you like those features you should certainly go look
them up. But those applications do not implement those features with
precisely the same names or syntax as ActiveRecord (or Elixir, which
deliberately borrows many such conventions from ActiveRecord). Which
is a perfectly good thing; Django isn't Rails, isn't written in the
same language and consciously tries to be idiomatic Python rather than
idiomatic Ruby, so trying to simply apply a a feature from Rails using
precisely the syntax Rails uses would cause it to stick out like a
sore thumb in Django.

-- 
"Bureaucrat Conrad, you are technically correct -- the best kind of correct."

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Re: In URL dispatcher, is there a way to pass values of Named Groups directly to template?

[DimebagBorgir]

I'm not sure what happened to my previous reply, maybe i sent it to
you directly, lol.. I'm new.

but i think this is what you want:

http://docs.djangoproject.com/en/dev/ref/generic-views/?from=olddocs#django-views-generic-simple-direct-to-template

urlpatterns = patterns('django.views.generic.simple',
(r'^machine_logs/$', 'direct_to_template', {'template':
'machine_logs.html'}),
(r'^machine_logs/(?P.*)/$', 'direct_to_template',
{'template': 'machine_logs.html'}),
)

you can access the variable in template from " {{params.unit_name}}

On Oct 21, 2:12 pm, "yuanyun.ken" <[EMAIL PROTECTED]> wrote:
> Hi,all great Django users and developers, I have a little problem.
> In URL dispatcher, is there a way to pass values of Named Groups
> directly to template, don't want to write a view function just for
> this.
> for example, I have the following urls:
>     (r'^machine_logs/$', direct_to_template, {'template':
> 'machine_logs.html'}),
>     (r'^machine_logs/(?P.*)/$', direct_to_template,
> {'template': 'machine_logs.html', 'unit_name':unit_name}),
>
> How can I pass the value of captured unit_name to machine_logs.html.
> Thanks for any help in advance.

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Re: In URL dispatcher, is there a way to pass values of Named Groups directly to template?

[DimebagBorgir]

Hey, I'm new to this group, but I believe you want generic views,
specifically:

django.views.generic.simple.direct_to_template

http://docs.djangoproject.com/en/dev/ref/generic-views/?from=olddocs#django-views-generic-simple-direct-to-template

which would give you something like this:

urlpatterns = patterns('django.views.generic.simple',
(r'^machine_logs/$', 'direct_to_template',
{'template': 'machine_logs.html'}),
(r'^machine_logs/(?P.*)/$', 'direct_to_template',
{'template': 'machine_logs.html'}),
)

... a request to /machine_logs/ would render the template
machine_logs.html, and a request to /machine_logs/machine4/ would
render the foo_detail.html with a context variable
{{ params.unit_name }} that is set to "machine4".



On Oct 21, 2:12 pm, "yuanyun.ken" <[EMAIL PROTECTED]> wrote:
> Hi,all great Django users and developers, I have a little problem.
> In URL dispatcher, is there a way to pass values of Named Groups
> directly to template, don't want to write a view function just for
> this.
> for example, I have the following urls:
>     (r'^machine_logs/$', direct_to_template, {'template':
> 'machine_logs.html'}),
>     (r'^machine_logs/(?P.*)/$', direct_to_template,
> {'template': 'machine_logs.html', 'unit_name':unit_name}),
>
> How can I pass the value of captured unit_name to machine_logs.html.
> Thanks for any help in advance.

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i18n all languages not displayed

[bluefireredsky]

Hi,

I am implementing an i18n for a web application. The customer requires
support for certain Indian languages such as Hindi and Tamil. I had
refered to http://www.i18nguy.com/unicode/language-identifiers.html
for identifying the respective language codes. I am not able to get it
working for Hindi, however Tamil works. Based on the above URL, the
language code for tamil should be "ta-IN" and for hindi it should be
"hi". For tamil, ta-IN does not work, but it works when i specify just
"ta". I am unable to get it to work for hindi with either "hi" or "hi-
IN". My languages in the settings.py file is as follows:

gettext = lambda s: s

LANGUAGES = (
 ('en', gettext('English')),
 ('ta', gettext('Tamil')),
 ('hi-IN', gettext('Hindi')),
)

My folder structure on the locale is as follows

locale\en\LC_MESSAGES
locale\hi-in\LC_MESSAGES
locale\ta\LC_MESSAGES

Any suggestions?

Thank you.

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Re: In URL dispatcher, is there a way to pass values of Named Groups directly to template?

[Daniel Roseman]

On Oct 21, 4:12 am, "yuanyun.ken" <[EMAIL PROTECTED]> wrote:
> Hi,all great Django users and developers, I have a little problem.
> In URL dispatcher, is there a way to pass values of Named Groups
> directly to template, don't want to write a view function just for
> this.
> for example, I have the following urls:
>     (r'^machine_logs/$', direct_to_template, {'template':
> 'machine_logs.html'}),
>     (r'^machine_logs/(?P.*)/$', direct_to_template,
> {'template': 'machine_logs.html', 'unit_name':unit_name}),
>
> How can I pass the value of captured unit_name to machine_logs.html.
> Thanks for any help in advance.


The documentation for direct_to_template explains how to do this:
"Renders a given template, passing it a {{ params }} template
variable, which is a dictionary of the parameters captured in the
URL."
http://docs.djangoproject.com/en/dev/ref/generic-views/#ref-generic-views

Your URL pattern above won't work of course because unit_name is not
defined as a variable at that point.
--
DR.
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Re: render_to_response failed to render media files in base.html

[Daniel Roseman]

On Oct 21, 4:26 am, "James Bennett" <[EMAIL PROTECTED]> wrote:
> On Mon, Oct 20, 2008 at 9:30 PM, Chuck22 <[EMAIL PROTECTED]> wrote:
> > Adding context_instance=RequestContext(request) to the method fixed
> > the problem. Seems this should be done by default for
> > render_to_response method. Thank you.
>
> It would be technically impossible to do this; render_to_response has
> no knowledge of the HttpRequest object (which is required for a
> RequestContext) unless you explicitly pass it as an argument.

True, but there's no reason that render_to_response couldn't just take
'request' as its third parameter, using a RequestContext if it is
provided, rather than the unnecessarily verbose context_instance
stuff. In fact at work we have written a shortcut to do just this.

--
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Re: Feature like "acts_as" in Django ORM or contrib ?

[Daniel Roseman]

On Oct 21, 6:45 am, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> Hi,
>
> Are there something in Django ORM or contrib to do "acts_as" like in
> RoR or Elixir (SqlAlchemy). Example :
>
> http://elixir.ematia.de/apidocs06/elixir.ext.htmlhttp://elixir.ematia.de/apidocs06/elixir.ext.list.html
>
> In Elixir, when I add acts_as_list(qualifier=qualify) in Model I can
> use move_higher, move_lower ... methods.
>
> Do you know a Django project like this ? If isn't I can make it.
>
> Regards,
> Stephane

acts_as is a Ruby design pattern rather than a Python one. However,
for the specific higher/lower functionality, look into django-mptt:
http://code.google.com/p/django-mptt/
--
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Re: Returning Queryset that excludes certain results from another queryset.

[timc3]

Sounds like it is, will try it out soon.

Thanks!
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Re: How to save/link/rename thumbnail in model

[krylatij]

You can define image upload path at runtime (check manual for
ImageField)

def get_photo_path(instance, filename):
return 'static/upload_to/photos/%s' % instance.name

class ProductImage(models.Model):
name = models.CharField(max_length=50)
file = models.ImageField(upload_to= get_photo_path)
...

In my projects i don't use additional field for thumbnails
Because i need thumbnails in different sizes
So i use property for that
 # If i don't allready have thumbnail in this size i generate it
 def _get_thumb_url(self, folder, size):
if not self.photo:
return '#'
upload_to = path.dirname(self.photo.path)
tiny = path.join(upload_to, folder,
path.basename(self.photo.path))
tiny = path.normpath(tiny)
if not path.exists(tiny):
import Image
im = Image.open(self.photo.path)
im.thumbnail(size, Image.ANTIALIAS)
im.save(tiny, 'JPEG')
return path.join(path.dirname(self.photo.url), folder,
path.basename(self.photo.path)).replace('\\', '/')


  def get_thumb_url(self):
return self._get_thumb_url('thumb_40_40', (40,40))

 def thumb(self):
link = self.get_thumb_url()
if link is None:
return 'NO IMAGE'
else:
return '' % (self.photo.url, link)
 thumb.allow_tags = True

So if i need thumbnail in my template i write this:
{{ my_model.thumb }}




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