models.py 文件源码

def _check_admin_item_size(cls, **kwargs):
        if not cls.ADMIN_ITEM_SIZE:
            return [
                checks.Error(
                    'ADMIN_ITEM_SIZE is required',
                    obj=cls
                )
            ]
        elif not is_size(cls.ADMIN_ITEM_SIZE):
            return [
                checks.Error(
                    'ADMIN_ITEM_SIZE should be a tuple of 2 non-negative numbers',
                    obj=cls
                )
            ]
        else:
            return []