在Elasticsearch中按其他数据排序。 可能吗？

Question

I want search all results in list --

# [ [num, pk], [1, 34], [2, 3147] ...]
# num = [0, 1, 2, ... 7]
pks = [34, 3147,..., 1264]

I want search where related__in=pks , but like this. First .filter(related=pk[0]) , then .filter(related=pk[1]) ... And concatenate results to single query.

SO:

Can I add some filed/data to searchqueryset to sort by it later?

Or maybe concatenate many searchquerysets to one?

Answer 1

What you are describing is a Haystack MultiValueField that allow for search engines to query ManyToMany relations like you are hinting at in your answer.

This is demonstrated in the documentation like so :

class NoteIndex(SearchIndex, indexes.Indexable):
    text = CharField(document=True, use_template=True)
    author = CharField(model_attr='user')
    categories = MultiValueField()

For details on how to efficiently query this field, see this related question .