Mongoid query for array field

Question

I have a category field of type Array in Mongoid.

Ex. category: [\"val1\",\"val2\",\"val3\"]

Answer 1

You can use Criteria all_in to make it simpler:

Model.all_in(category: ['val1','val2'])

Answer 2

This worked

Model.where(:category.in => ['val1','val2'])

From Mongo Docs

Answer 3

In mongoid, there is '$in' operator. So you can do this :

Model.where(category: { '$in': ['val1', 'val2'] })

Answer 4

Or another variant:

Model.in(category: ['val1','val2'])