How to sort MongoDB selection by number of conditions met in $or?

Question

NoSQL

I implement in the application something like a search by filters.
To select all documents that match at least one filter, I decided to use the $or operator and list all conditional filters in it. But now how can I sort the documents by the number of conditions met, so that first there are those that satisfied all the conditions, and at the very end those that satisfied one?

Answer 1

You'd better use the text index, the most relevant documents will "pop out" at the top.
You can also try sphinx/elastic search.