resource.py 文件源码

def get_all_without_views(cls, formats=[]):
        '''Returns all resources that have no resource views

        :param formats: if given, returns only resources that have no resource
            views and are in any of the received formats
        :type formats: list

        :rtype: list of ckan.model.Resource objects
        '''
        query = meta.Session.query(cls).outerjoin(ckan.model.ResourceView) \
                    .filter(ckan.model.ResourceView.id == None)

        if formats:
            lowercase_formats = [f.lower() for f in formats]
            query = query.filter(func.lower(cls.format).in_(lowercase_formats))

        return query.all()