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@frankwiles
Created March 7, 2023 01:55
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Django string relationships to avoid circular imports
from django.db import models
from app1.models import ModelOne
from app2.models import ModelTwo
class ThingInThisApp(models.Model):
one = models.ForeignKey(ModelOne, related_name="things", on_delete.models.CASCADE)
two = models.ForeignKey(ModelTwo, related_name="things", on_delete.models.CASCADE)
# ...
from django.db import models
class ThingInThisApp(models.Model):
""" Removing the imports removes a ton of circular dependency issues """
one = models.ForeignKey("app1.ModelOne", related_name="things", on_delete.models.CASCADE)
two = models.ForeignKey("app2.ModelTwo", related_name="things", on_delete.models.CASCADE)
def some_method(self):
# In a pinch you can sometimes get away with importing in the method or function directly, but
# this is probably the least awesome way to do it
from other_app.models import Something
# use Something here
# If your issues are with utility functions just move them into another file and import the models. The issue is
# USUALLY related to models that import models which import models and that doesn't happen if you have a `utils.py` that
# is importing from 2-3 apps
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