我尝试在我的项目中设置 django-mptt 一会儿。我从教程中提取了一个样本并相应地更改了模型,如下所示:
class Genre(MPTTModel):
pk = models.AutoField(primary_key=True)
name = models.CharField(max_length=50, unique=True)
parent = TreeManyToManyField('self', null=True, blank=True, related_name='children')
class MPTTMeta:
order_insertion_by = ['name']
不幸的是控制台打印出这样的东西:
/srv/tokedu/local/lib/python2.7/site-packages/Django-1.3.1-py2.7.egg/django/db/models/base.pyc in _set_pk_val(self, value)
426
427 def _set_pk_val(self, value):
--> 428 return setattr(self, self._meta.pk.attname, value)
429
430 pk = property(_get_pk_val, _set_pk_val)
/srv/tokedu/local/lib/python2.7/site-packages/Django-1.3.1-py2.7.egg/django/db/models/base.pyc in _set_pk_val(self, value)
426
427 def _set_pk_val(self, value):
--> 428 return setattr(self, self._meta.pk.attname, value)
429
430 pk = property(_get_pk_val, _set_pk_val)
RuntimeError: maximum recursion depth exceeded
我认为 django-mptt 只是不支持 TreeManyToManyField。有人遇到同样的问题吗??