Solvita: akiri liston de ĉiuj dokumentoj en django-elasticsearch-dsl

La ĉefa problemo estas, ke Elasticsearch ne havas indiĝenan manieron akiri liston de ĉiuj dokumentoj en donita indekso. Vi povas uzi la serĉan API, sed ĉi tio resendos nur unu dokumenton samtempe.

Mi uzas django-elasticsearch-dsl kaj mi volas ricevi liston de ĉiuj dokumentoj en indekso. Kiel mi povas fari tion?

A:

Vi povas uzi la Search objekto de django_elasticsearch_dsl. Ĝi estas subklaso de la ElasticsearchDSL Serĉu objekton, do vi povas uzi ĉiujn metodojn de tie ankaŭ. La dokumentoj por tio estas ĉi tie: https://elasticsearch-dsl.readthedocs.io/en/latest/search_dsl.html#the-search-object

Akirante ĉiujn dokumentojn

<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.'

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