January 29, 2008
Breaking Apart Models in Django
There are two parts to breaking up a large module in Django. The first is a
purely Python convention where you break apart the file into multiple files
and create a subdirectory for the name of the original module so your
models.py file becomes:
models/__init__.py models/module1.py models/modlue2.py
__init__.py you'll want to import from your
module2.py modules and add those imported objects to
# __init__.py from app.models.module1 import MyClass from app.models.module2 import AnotherClass, function_one __all__ = ['MyClass', 'AnotherClass', 'function_one']
Now that you have taken care of the Python part of this exercise, you'll need to do a couple tricks to get your models importing properly in the context of your django project.
It involves adding a couple o attributes to the
Meta inner class. Thanks to
Collin Grady (aka Magus on #django on
irc.freenode.net) for pointing these tips out to me:
class MyClass: ... class Meta: app_name = 'myappname' db_table = 'myappname_myclass'
Now you should have a better code base that causes less contention and makes it faster to locate the models you are looking for.
As has been pointed out to me in the comments as well as one #djano today, I got "Empty" and "Magus" mixed up with their real names. Much apologies for any and all confusion this might have caused.
As pointed out in some of the recent comments below, this post was corrupted when I enabled the markdown plugin for wordpress. It is treating all posts I have ever written as markdown which is not right but I have not the energy nor the inclination to go back in time and update all my old posts. That being said, I really love markdown for my posting so I'll keep the plugin activated.