#2438: django.db.models get_apps() return different results according to the
server used
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Reporter: kilian <[EMAIL PROTECTED]> | Owner: mtredinnick
Type: defect | Status: new
Priority: normal | Milestone:
Component: Admin interface | Version:
Severity: normal | Keywords:
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Using apache2 + mod_python, the admin interface do not display all of the
applications listed in {{{INSTALLED_APPS}}}, while all those applications
correctly appear in the main admin page using the integrated web server.
Weirder is the fact that, for the missing app, the 'should-be' admin URLs
for adding or editing objects (admin/app/object/add/) can be successfully
accessed. It seems that the missing application is correctly seen and
working (objects actually can be managed with direct URLs), but it's not
shown on the main admin page.
I narrowed the problem to the fact that {{{get_apps()}}} from
{{{django.db.models}}} does not return the same list when called from
mod_python or from the integrated server. More precisely, it seems that
for one of the applications, in {{{db/models/loading.py}}}, the
{{{load_app()}}} function checking for 'models' attribute behaves
differently according to the server used.
The {{{hasattr(mod, 'models')}}} call returns {{{False}}} for the
''hostManage'' application using mod_python, and {{{True}}} for the same
application using the integrated server. Thus, it's not listed in
{{{_app_list}}}, and is not displayed on the admin page.
Adding
{{{
h = hasattr(mod, 'models')
assert False, h
}}}
in the {{{load_app()}}} function from {{{db/models/loading.py}}} gives the
following with mod_python:
||'''Variable'''||'''Value'''||
||app_name||'dNA.hostManage'||
||h||False||
||mod||<module 'dNA.hostManage' from
'/var/www/dNA/hostManage/!__init!__.pyc'>||
I removed *.pyc, and checked permissions on my folders and directories,
but they seems to be ok since I the {{{hasattr(mod, 'models')}}} works
from the shell:
{{{
>>> mod = __import__('hostManage', '', '', ['models'])
>>> mod
<module 'hostManage' from '/var/www/dNA/hostManage/__init__.pyc'>
>>> hasattr(mod, 'models')
True
}}}
So, I can't figure out why, but the {{{hasattr(mod, 'models')}}} function
returns different values according to the server used. And I guess it's
not thewanted behavior. ;)
----
''for reference, this issue has been discussed
[http://groups.google.com/group/django-
users/browse_frm/thread/2d962fb4a4640569/87e4a535dc74149c there] and
[http://groups.google.com/group/django-
developers/browse_frm/thread/49bad5f86e982099/87e4a535dc74149c there]''
--
Ticket URL: <http://code.djangoproject.com/ticket/2438>
Django <http://code.djangoproject.org/>
The web framework for perfectionists with deadlines.
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