misc_usage_examples.rst

Various handy helpers

Contents:

Table of Contents

• More like this

More like this

To get more-like-this results on a random registered model, do as follows:

from django_elasticsearch_dsl_drf.helpers import more_like_this
from books.models import Book
book = Book.objects.first()
similar_books = more_like_this(
    book,
    ['title', 'description', 'summary']
)

Customize results as follows:

from django_elasticsearch_dsl_drf.helpers import more_like_this
from elasticsearch_dsl.query import Q
from books.models import Book
book = Book.objects.first()
query = Q('bool', must_not=Q('term', **{'state.raw': 'cancelled'}))
similar_books = more_like_this(
    book,
    query=query,
    fields=['title', 'description', 'summary'],
    min_term_freq=2,
    min_doc_freq=1,
)