groups.Groups.created_by：(fields.E303)“Groups.created_by”的反向查询名称与字段名“User.groups”冲突

Question

我正在尝试迁移这两种模式：

from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
# Create your models here.

# Groups Model
class Cluster(models.Model):

    grp_name = models.CharField(max_length=100)
    grp_status = models.CharField(max_length=100)
    grp_description = models.TextField()
    created_on = models.DateTimeField(default=timezone.now)
    created_by = models.ForeignKey(
        User,
        related_name='created',
        on_delete=models.CASCADE
    )
    updated_on = models.DateTimeField(auto_now=True)
    members = models.ManyToManyField(
        User, 
        through='UserGroup',
        through_fields=('user', 'group'),
        related_name='members'
    )

    def __str__(self):
        return self.grp_name

#user groups
class UserGroup(models.Model):
    user = models.ForeignKey(
        User,
        on_delete=models.CASCADE,
        related_name = 'user'
    )
    group = models.ForeignKey(
        Cluster,
        on_delete=models.CASCADE,
        related_name = 'group'
    )
    date_joined = models.DateTimeField(default=timezone.now)

但我有个错误：

    ERRORS:
groups.Cluster.members: (fields.E339) 'UserGroup.group' is not a foreign key to 'User'.
        HINT: Did you mean one of the following foreign keys to 'User': user?
groups.Cluster.members: (fields.E339) 'UserGroup.user' is not a foreign key to 'Cluster'.
        HINT: Did you mean one of the following foreign keys to 'Cluster': group?

我想在用户和组之间建立多到多的关系。也就是说，用户可以在多个组和组中拥有许多用户。为什么我的代码出错了？我该怎么解决呢？请帮帮忙。

Answer 1

用户related_name参数：

 created_by=models.ForeignKey(User, on_delete=models.CASCADE,related_name="created")