Python elasticsearch-dsl django pagination

Question

How can i use django pagination on elasticsearch dsl. My code:

query = MultiMatch(query=q, fields=[\'title\', \'body\'], fuzziness=\'AUTO\')

s = Search(usin         


        

Answer 1

Another way forward is to create a proxy between the Paginator and the Elasticsearch query. Paginator requires two things, __len__ (or count) and __getitem__ (that takes a slice). A rough version of the proxy works like this:

class ResultsProxy(object):
    """
    A proxy object for returning Elasticsearch results that is able to be
    passed to a Paginator.
    """

    def __init__(self, es, index=None, body=None):
        self.es = es
        self.index = index
        self.body = body

    def __len__(self):
        result = self.es.count(index=self.index,
                               body=self.body)
        return result['count']

    def __getitem__(self, item):
        assert isinstance(item, slice)

        results = self.es.search(
            index=self.index,
            body=self.body,
            from_=item.start,
            size=item.stop - item.start,
        )

        return results['hits']['hits']

A proxy instance can be passed to Paginator and will make requests to ES as needed.