◾️ One Model’s two field refer same Model
-> this cause error
ERRORS:
users.User.fav_book_genre: (fields.E304) Reverse accessor for 'users.User.fav_book_genre' clashes with reverse accessor for 'users.User.fav_movie_genre'.
HINT: Add or change a related_name argument to the definition for 'users.User.fav_book_genre' or 'users.User.fav_movie_genre'.
users.User.fav_movie_genre: (fields.E304) Reverse accessor for 'users.User.fav_movie_genre' clashes with reverse accessor for 'users.User.fav_book_genre'.
HINT: Add or change a related_name argument to the definition for 'users.User.fav_movie_genre' or 'users.User.fav_book_genre'.- User model with problem
from django.db import models
from django.contrib.auth.models import AbstractUser
class User(AbstractUser):
....
language = models.CharField(
max_length=20, choices=LANG_CHOICES, default=LANG_EN)
fav_book_genre = models.ForeignKey(
"categories.Category", on_delete=models.SET_NULL, null=True)
fav_movie_genre = models.ForeignKey(
"categories.Category", on_delete=models.SET_NULL, null=True)
◾️ trouble shooting ( ref site )
-> use related_name
from django.db import models
from django.contrib.auth.models import AbstractUser
class User(AbstractUser):
....
language = models.CharField(
max_length=20, choices=LANG_CHOICES, default=LANG_EN)
fav_book_genre = models.ForeignKey(
"categories.Category", related_name='book_users', on_delete=models.SET_NULL, null=True)
fav_movie_genre = models.ForeignKey(
"categories.Category", related_name='movie_users', on_delete=models.SET_NULL, null=True)