cirandas.net

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module SetProfileRegionFromCityState

  module ClassMethods
    def set_profile_region_from_city_state
      before_save :region_from_city_and_state

      include InstanceMethods
      alias_method_chain :city=, :region
      alias_method_chain :state=, :region
    end
  end

  module InstanceMethods
    include Noosfero::Plugin::HotSpot

    def city_with_region=(value)
      self.city_without_region = value
      @change_region = true
    end

    def state_with_region=(value)
      self.state_without_region = value
      @change_region = true
    end

    def region_from_city_and_state
      if @change_region
        self.region = nil
        state = search_region(State, self.state)
        self.region = search_region(City.where(:parent_id => state.id), self.city) if state
      end
    end

    private

    def search_region(scope, query)
      return nil if !query
      query = query.downcase.strip
      scope.where(['lower(name)=? OR lower(abbreviation)=? OR lower(acronym)=?', query, query, query]).first
    end

  end

end