MongoMapper search method.rb

module MongoMapper
  module Plugins
    module Querying
      module ClassMethods
        def search(fields, words, conditions = {}, options = {})
          filters = []
          fields = fields.split(",").map {|l| l.strip } if fields.class.to_s == "String"
          words.split(" ").each do |word|
            ftemp = []
            fields.each {|field| ftemp << "(String(this.#{field}).replace('null', '').match(/#{word}/i))" }
            filters << "(#{ftemp * " || "})"
          end
          filters = filters * " && "
    
          all({:conditions => { "$where" => filters }.merge(conditions) }.merge(options))
        end
      end
    end
  end
end