Решено: добити листу свих докумената у дјанго-еластицсеарцх-дсл

Главни проблем је што Еластицсеарцх нема изворни начин да добије листу свих докумената у датом индексу. Можете да користите АПИ за претрагу, али ово ће вратити само један по један документ.

Користим дјанго-еластицсеарцх-дсл и желим да добијем листу свих докумената у индексу. Како могу да урадим?

A:

Можете да користите Search објект од django_elasticsearch_dsl. То је подкласа ElasticsearchDSL Објект претраге, тако да можете користити све методе и одатле. Документи за то су овде: хттпс://еластицсеарцх-дсл.реадтхедоцс.ио/ен/латест/сеарцх_дсл.хтмл#тхе-сеарцх-објецт

Добијање свих докумената

<code>from django_elasticsearch_dsl import Search, Index






    s = Search(index='blog')

        .query('match', title='python')  
    response = s.execute()
    for hit in response:   # iterate over hits from response object

        print(hit)          # print each hit as a dict (default) 
    for hit in s:          # iterate over hits from search query directly

        print(hit)          # print each hit as a dict (default) 
    for hit in s[0:10]:     # slice results to get only first 10 hits

        print(hit)          # print each hit as a dict (default) 
    len(s)                  # number of total hits found by query (slow!)      &lt;--- this is what you want!     &lt;--- this is what you want!     &lt;--- this is what you want!     &lt;--- this is what you want!     &lt;--- this is what you want!      len(response)             # number of total hits found by query (slow!)      &lt;--- this is what you want!     &lt;--- this is what you want!     &lt;--- this is what you want!     &lt;--- this is what you want!      list(s)[0]                # first result as a Python dictionary       list(response)[0]           # first result as a Python dictionary       response[0]                # first result as an ElasticSearch Hit       response[0].meta           # metadata associated with the Hit         response[0].meta.score     # score associated with the Hit           response[0].title          # title field value                       list(response)[1]['title']   ## second result's 'title' field value<;/pre>;<;br />;>;br />;The above code will return all documents matching your query, but it will not return any fields other than _id and _type unless they are explicitly requested via source(). To retrieve more fields, use source():<;br />;from django_elasticsearch_dsl import Search, Index, F ;from elasticsearch_dsl import Q ;import json ;import pprint ;pp = pprint.PrettyPrinter();pprint = pp.pprint ;s = Search().query('match', title='python').source([ 'title', 'body' ]) ;for i in range((len(s))): pprint((json.loads((str)(s[i]).replace("'", """)))) ;## or simply do it like below :## [{'body': 'Python and Django go together like peanut butter and jelly.'