Contents

module BerkeleyLibrary
  module AV
    class Restrictions

      # TODO: remove 85642$y and 95640$z once we confirm all records have 998$r
      SUBFIELD_VALUE_SPECS = %w[998$r/#-# 856$y/#-#{^1=\4}{^2=\2} 956$z/#-#{^1=\4}{^2=\0}].freeze

      RE_CALNET_ONLY = /CalNet/i
      RE_CALNET_OR_IP = /UCB access|UCB only/i

      attr_reader :marc_record

      def initialize(marc_record)
        @marc_record = marc_record
      end

      def calnet_only?
        @calnet ||= any_field_value_matches?(RE_CALNET_ONLY)
      end

      def calnet_or_ip?
        @ucb_ip ||= any_field_value_matches?(RE_CALNET_OR_IP)
      end

      private

      def any_field_value_matches?(re)
        field_values.any? { |v| re =~ v }
      end

      def field_values
        @field_values ||= SUBFIELD_VALUE_SPECS.flat_map { |spec| MARC::Spec.find(spec, marc_record) }
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
berkeley_library-av-core-0.4.2	lib/berkeley_library/av/restrictions.rb
berkeley_library-av-core-0.4.1	lib/berkeley_library/av/restrictions.rb
berkeley_library-av-core-0.4.0	lib/berkeley_library/av/restrictions.rb