Use of full-text search + GIN in a view (Django 1.11 )
Answering my own question:
products = ( Product.objects.annotate(rank=SearchRank(F("search_vector"), search_words)) .filter(search_vector=search_words) .order_by("-rank"))
This means you should search your index field - in my case search_vector field.
Also I have changed my code a bit in ProductManager() class, so now I can just use
products = Product.objects.with_documents(search_words)Where with_documents() is a custom function of custom ProductManager(). The recipe of this change is here (page 29).
What does all this code do:
- creates search_vector with scores to fields, field with bigger score - gets higher place in result sorting.
- creates GIN index for full-text search via ORM Django
- updates GIN index every time the instance of model is changed
What this code dosn't do: - It doesn't sort by relevance of substring which is queried. Possible solution.
Hope this will help somebody with a bit complicated full-text search in Django.