Helper function for building an attribute dictionary.

清洗字符串,如去除HTML标签等 :param string: 待清洗字符串 :return clean_str: 清洗后的较干净字符串

清洗字符串,如去除HTML标签等 :param string: 待清洗字符串 :return clean_str: 清洗后的较干净字符串

Prepare the context for templates.

Return list of Fields given path relative to model. e.g. (ModelX, "user__groups__name") -> [ <django.db.models.fields.related.ForeignKey

Returns available import formats.

Returns ResourceClass to use for import.

Returns the proper model field name corresponding to the given field_name to use for ordering. field_name may either be the name of a

Returns True if 'distinct()' should be used to query the given lookup path.

Return the appropriate `verbose_name` or `verbose_name_plural` value for `obj` depending on the count `n`. `obj` may be a `Model` instan

Returns a QuerySet of all model instances that can be edited by the admin site. This is used by changelist_view.