anthonymidili/EasyKeep

module SelectedRange
  extend ActiveSupport::Concern

  module ClassMethods

    # Scope to find all services or payments in a selected time range using the view_by and active_date cookies.
    def by_selected_range(view_by, active_date)
      time_range = (active_date.send("beginning_of_#{view_by}")..active_date.send("end_of_#{view_by}"))
      where(column_name => time_range)
    end

  private

    def column_name
      @column_name ||=
        if self.name == 'Service'
          :performed_on
        elsif self.name == 'Payment'
          :received_on
        elsif self.name == 'Invoice'
          :established_at
        end
    end

  end
end