Just a quick noob question. Do I need to have content_type, object_id, and content_object every time I use GenericRelation in models? I get the concept behind generic relation but I'm confused on how to implement it.
Below is the setup.
Address - a generic content type; to be used in different models.
Company - a simple model that uses address generic content type.
Person - a simple model that uses address generic content type.
Is it essential to have these 3 attributes in all models? Thanks in advance!
You need this fields only inside Address model:
class Address(models.Model):
content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey('content_type', 'object_id')
In models Company and Person you just specify reverse generic relation with GenericRelation:
from django.contrib.contenttypes.fields import GenericRelation
class Company(models.Model):
addresses = GenericRelation(Address)
class Person(models.Model):
addresses = GenericRelation(Address)
with this you can get address assosiated with person like this:
person.addresses.all()