Like operator in MongoDB 🧩

A good way to use operator LIKE in Ruby on Rails while using MongoDB 💡

Code snippet 📌

# app/models/mongoid/base_model.rb
module Mongoid
  module BaseModel
    extend ActiveSupport::Concern

    module ClassMethods
      def _search_(k, v)
        if k && v && v.size > 0
          any_of({ k => /.*#{v}.*/i })
        else
          all
        end
      end

      alias method :like, :_search_
    end
  end
end
# app/models/lead.rb
class Lead
  include Mongoid::Document
  include Mongoid::BaseModel # including Concern

  field :first_name, type: String
end

# Rails Console
❯ Lead.like(:first_name, 'Rishi')
❯ <Mongoid::Criteria
  selector: { "$or" => [{"first_name"=>/.*Rishi.*/i}]}
  options:  {}
  class:    Lead
  embedded: false>