options.py 文件源码

def declared_fieldsets(self):
        warnings.warn(
            "ModelAdmin.declared_fieldsets is deprecated and "
            "will be removed in Django 1.9.",
            RemovedInDjango19Warning, stacklevel=2
        )

        if self.fieldsets:
            return self.fieldsets
        elif self.fields:
            return [(None, {'fields': self.fields})]
        return None