Re: Using multiple model files per app with the Improved Multiple Model Files Django Snippet

On 30/05/2013 10:43pm, Doug S wrote:
> I'm trying to use multiple files for my models in a single app.
> I found a nice solution on Django Snippets <http://djangosnippets.org/>:
> http://djangosnippets.org/snippets/1838/
> but I'm not able to get it to work.
> The docs assume that I know more than I do about how this solution works.
> Its involves using a models folder for the app like this:
>
> # myapp/
> # models/
> # __init__.py
> # models1.py
> # models2.py

That is correct. But it won't immediately work without an incantation in
models/__init__.py

In there you need ...

from __future__ import absolute_import
from .models1 import ModelOne
from .models2 import ModelTwo

Note that in your previous setup where ModelOne and ModelTwo were both
classes in myapp/models.py your views.py import lines were ...

from myapp.models import ModelOne
from myapp.models import ModelTwo

That shouldn't change with the new setup.

>
>
> and then including an __init__.py file in the folder to make it a package
>
> this file also contains this code:
>
> import django.db.models
> import sys
>
> appname = "myapp"
> from models1 import *
> from models2 import *
>
> __all__ = []
>
> for decl in globals().values():
> try:
> if decl.__module__.startswith(__name__) and issubclass(decl, django.db.models.Model):
> decl._meta.db_table = decl._meta.db_table.replace('models', appname)
> decl._meta.app_label = appname
> __all__.append(decl.__name__)
> django.db.models.loading.register_models(appname, decl)
> except:
> pass
>
> I don't understand this code, but hopefully I don't have to.
>
> I just want to be able to import my individual model modules:
>
> models1.py &models2.py
>
> from my views and admin.py
>
> the import statements are not included in the snippet
>
> and I've tried what seems reasonable and keep getting errors importing the modules saying they don't exist
>
> I would expect you do something like
>
> import myapp.models.model1
>
> &
>
> import myapp.models.model2/
> /
>
> but this doesn't work.
>
> maybe I don't understand the magic in the __init__.py file
>
> or I'm just being plain stupid.
>
> Can someone point me toward getting this solution working with my imports?
>
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