Lets say I have a the following tables:
products: id, name, latitude and longitude users: id, name, latitude, longitude interests: id, name user_interests: user_id, interest_id
These gets inserted/updated into elasticsearch whenever they are created/edited using model observers.
Now I want to make a custom script/scoring function in elastic search which will return me a matching score when a user is searching for a product. The scoring will be based on distance between users location and product, user interests and product name match etc etc.
Being new to elastic search, whats the right approach of implementing this? Any tutorial, online resources or examples are highly appreciated.
PS: I am using PostgreSQL as a database. I can create a function there called get_match(product_id, user_id) which returns a number (0-100) based on matching criteria and do something like:
//psuedo sql select p.name, get_match(p.id, u.id) as match from products p, users u order by match desc
I want to achieve a similar functionality in elasticsearch if possible.