checks.py 文件源码

def _check_inlines_item(self, obj, model, inline, label):
        """ Check one inline model admin. """
        inline_label = '.'.join([inline.__module__, inline.__name__])

        from django.contrib.admin.options import BaseModelAdmin

        if not issubclass(inline, BaseModelAdmin):
            return [
                checks.Error(
                    "'%s' must inherit from 'BaseModelAdmin'." % inline_label,
                    hint=None,
                    obj=obj.__class__,
                    id='admin.E104',
                )
            ]
        elif not inline.model:
            return [
                checks.Error(
                    "'%s' must have a 'model' attribute." % inline_label,
                    hint=None,
                    obj=obj.__class__,
                    id='admin.E105',
                )
            ]
        elif not issubclass(inline.model, models.Model):
            return must_be('a Model', option='%s.model' % inline_label,
                           obj=obj, id='admin.E106')
        else:
            return inline(model, obj.admin_site).check()