= CookBook - [wiki:CookBookDataModels Data Models] - Splitting models across multiple files =

It is not clear that this works anymore. Using the development version, revision 7013, I got
{{{
./manage.py sqlall example
Error: App with label example could not be found. Are you sure your INSTALLED_APPS setting is correct?
}}}



To split models across multiple files, you can do the following (works at least with revision 2819):

The important thing to notice here is the {{{app_label}}} attribute in the {{{Meta}}} class. If that is omitted, a subsequent {{{manage.py syncdb}}} run will not pick up these models.

'''NOTE:''' When #2982 gets applied you won't need the {{{Meta}}} class anymore, so if this link: #2982 has a strike-through and you are running svn, you don't need the {{{Meta}}} class.

{{{apps/polls/models/__init__.py}}}:
{{{
#!python
from poll import Poll
from choice import Choice
}}}

{{{apps/polls/models/poll.py}}}:
{{{
#!python
from django.db import models

class Poll(models.Model):
    question = models.CharField(maxlength=200)
    pub_date = models.DateTimeField('date published')

    class Meta:
        app_label = 'polls'
}}}

{{{apps/polls/models/choice.py}}}:
{{{
#!python
from django.db import models
from poll import Poll

class Choice(models.Model):
    poll = models.ForeignKey(Poll)
    choice = models.CharField(maxlength=200)
    votes = models.IntegerField()

    class Meta:
        app_label = 'polls'
}}}

Ok so the example is a bit stupid but it should illustrate the point.

== Providing initial sql data for models ==

If you provide initial sql data for you models (as described in [http://www.djangoproject.com/documentation/model_api/#providing-initial-sql-data Providing initial SQL data]) you should notice that at least in Django 0.95 the path for sql files is different when this recipe is applied. In this case the path is:

{{{<appname>/models/sql/<modelname>.sql}}}