Django GenericRelation fields not available during South migration
问题 In a Django project, I have models defined like this : from django.db import models from django.contrib.contenttypes.models import ContentType from django.contrib.contenttypes import generic class TaggedEntry(models.Model): content_type = models.ForeignKey(ContentType) object_id = models.PositiveIntegerField() content_object = generic.GenericForeignKey("content_type", "object_id") class Meta: abstract = True class File(TaggedEntry): name = models.CharField(max_length = 256) # some more fields