Ruby on Rails

I have a Shop model with some attributes:

 role_number   :integer(10)
 role_date     :date
 name          :string(255)
 ssn           :string(255)
 nationality   :string(255)
 address       :string(255)
 number        :string(255)
 website       :string(255)
 district      :integer(10)
 sector        :string(255)
 square_meters :integer(131089)
 duaap         :integer(10)
 description   :string(255)
 state         :string(255)
 notes         :text

I want to create a form for searching on one field or on two fields or
on three fields...............or on all fields.
There is a gem that facilitate this work?
I'm thinking about meta_search, what do you think about?

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