Views don't produce migration file after makemigrations

[shawnlikescode]

Hi! Hopefully there's just something small I'm missing. When I run makemigrations Django, don't take register the files I've created for views. My Database is Postgres.

[shawnlikescode]

from django.db import models
from dbview.models import DbView

class ModelA(models.Model):
    fielda = models.CharField()
    fieldc = models.IntegerField()

class MyView(DbView):
    fieldA = models.OneToOneField(ModelA, primary_key=True,
        db_column='fielda__id')
    fieldB = models.IntegerField(blank=True, null=True, db_column='fieldb')

    @classmethod
    def view(cls):
        """
        This method returns the SQL string that creates the view,
        in this example fieldB is the result of annotating another column
        """
        qs = modelA.objects.all(
        ).annotate(
            fieldb=models.Sum('fieldc'),
        ).annotate(
            fielda__id=models.F('pk'),
        ).order_by(
            'fielda__id',
        ).values(
            'fielda__id',
            'fieldb',
        )
        return str(qs.query)

I'm testing with the basic example code.

[moorchegue]

Is this in your models.py, or do you have a more complex models module structure? In case of the latter don't forget to have an __init__.py inside your models/ directory and import all submodules there like:

from . import myview
__all__ = ['myview']

I did just execute this with Postgres, and there was a couple of small hiccups though. ModelA.FieldA wanted a max_length:

ui.ModelA.fielda: (fields.E120) CharFields must define a 'max_length' attribute.

And MyView.FieldA was missing an on_delete argument:

TypeError: OneToOneField.__init__() missing 1 required positional argument: 'on_delete'

I'll update the example to have those incorporated. But this doesn't seem to be your issue, right?