select(*fields, &block)
Instance Public methods
Works in two ways.
First: Specify a subset of fields to be selected from the
result set.
class Person < ActiveRecord::Base
has_many :pets
end
person.pets
# => [
# #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>,
# #<Pet id: 2, name: "Spook", person_id: 1>,
# #<Pet id: 3, name: "Choo-Choo", person_id: 1>
# ]
person.pets.select(:name)
# => [
# #<Pet id: nil, name: "Fancy-Fa