reverse accessor model clashing Django Web App

Question

from django.db import models
from django.contrib.auth.models import AbstractUser


class Customer(AbstractUser):
    address_line = models.CharField(max_length=255)
    city = models.CharField(max_length=255)
    postal_code = models.CharField(max_length=10)
    phone_number = models.CharField(max_length=20)
    origin_country = models.CharField(max_length=255)
    profile_picture = models.ImageField(upload_to='customer_profile_pics', null=True, blank=True)


class Chef(AbstractUser):
    address_line = models.CharField(max_length=255)
    city = models.CharField(max_length=255)
    postal_code = models.CharField(max_length=10)
    phone_number = models.CharField(max_length=20)
    origin_country = models.CharField(max_length=255)
    profile_picture = models.ImageField(upload_to='chef_profile_pics', null=True, blank=True)


class Meal(models.Model):
    name = models.CharField(max_length=255)
    description = models.TextField()
    picture = models.ImageField(upload_to='meal_pics')
    country = models.CharField(max_length=255)
    chef = models.ForeignKey(Chef, on_delete=models.CASCADE, related_name='meals')
    customers = models.ManyToManyField(Customer, blank=True, related_name='meals')


class Discussion(models.Model):
    message = models.TextField()
    timestamp = models.DateTimeField(auto_now_add=True)
    customer = models.ForeignKey(Customer, on_delete=models.CASCADE, null=True, blank=True, related_name='discussions')
    chef = models.ForeignKey(Chef, on_delete=models.CASCADE, null=True, blank=True, related_name='discussions')

This is my models.py file I get the following error while making migrations

SystemCheckError: System check identified some issues:

ERRORS:
meals.Chef.groups: (fields.E304) Reverse accessor for 'Chef.groups' clashes with reverse accessor for 'Customer.groups'.
        HINT: Add or change a related_name argument to the definition for 'Chef.groups' or 'Customer.groups'.
meals.Chef.user_permissions: (fields.E304) Reverse accessor for 'Chef.user_permissions' clashes with reverse accessor for 'Customer.user_permissions'.
        HINT: Add or change a related_name argument to the definition for 'Chef.user_permissions' or 'Customer.user_permissions'.
meals.Customer.groups: (fields.E304) Reverse accessor for 'Customer.groups' clashes with reverse accessor for 'Chef.groups'.
        HINT: Add or change a related_name argument to the definition for 'Customer.groups' or 'Chef.groups'.
meals.Customer.user_permissions: (fields.E304) Reverse accessor for 'Customer.user_permissions' clashes with reverse accessor for 'Chef.user_permissions'.
        HINT: Add or change a related_name argument to the definition for 'Customer.user_permissions' or 'Chef.user_permissions'.

I tried some solutions on the internet but it didn't work, i want to test the app on my browser but making the migrations keeps showing me this error, please help!!!!

I am really new to Django Back End Dev, I tried to troubleshoot the issue but i couldn't.

Answer 1

Why create two User models ? With same field ? AbstractUser is for defining your custom model used for authentication. Are you sure you have understood that ?

For resolving your case, you have to override user_permissions and groups from Abstract user for redefine related_name of this fields...

class Chef(...):
    groups = models.ManyToManyField(
        Group,
        related_name="XXXXX",
        related_query_name="user",
    )
    user_permissions = models.ManyToManyField(
        Permission,
        related_name="YYYYY",
        related_query_name="user",
    )