下面是一對多的關係模型
class Cats(models.Model):
#...
catnum = models.IntegerField(unique=True)
#...
class Items(models.Model):
catid = models.ForeignKey(Cats, to_field='catnum', db_column='catid')
#...
Unhandled exception in thread started by
Traceback (most recent call last):
File “c:\python27\lib\site-packages\django\core\management\commands\runserver.py”, line 48, in inner_run
self.validate(display_num_errors=True)
File “c:\python27\lib\site-packages\django\core\management\base.py”, line 253, in validate
raise CommandError(“One or more models did not validate:\n%s” % error_text)
django.core.management.base.CommandError: One or more models did not validate:
beauty.items: Reverse query name for field ‘catid’ clashes with field ‘Cats.items’. Add a related_name argument to the definit
ion for ‘catid’.
發生的錯誤大概意思是要增加一個related_name引數，所以Items模型改為
class Items(models.Model):
catid = models.ForeignKey(Cats, to_field='catnum', db_column='catid', related_name='catid')
#...