Sha256: 32fcd1cb64cc255e8abad4777091cdb7fa3bcb6c18d91731c28cf5a0185c0836
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Versions: 15
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Contents
# frozen_string_literal: true
module PriceHubble
module EntityConcern
module Attributes
# A separated enum typed attribute helper.
module Enum
extend ActiveSupport::Concern
class_methods do
# Register a fixed enum attribute.
#
# @param name [Symbol, String] the name of the attribute
# @param values [Array<String, Symbol>] the allowed values
# @param _args [Hash{Symbol => Mixed}] additional options
#
# rubocop:disable Metrics/MethodLength because of the inline
# meta method definitions
def typed_attr_enum(name, values:, **_args)
values = values.map(&:to_sym)
const_values = "ATTR_#{name.to_s.upcase}"
class_eval <<-RUBY, __FILE__, __LINE__ + 1
# Define the constant for all valid values
#{const_values} = #{values}.freeze
def #{name}=(value)
#{name}_will_change!
value = value.to_sym
unless #{const_values}.include? value
raise ArgumentError, "'\#{value}' is not a valid #{name} " \
"(values: \#{#{const_values}})"
end
@#{name} = value
end
RUBY
values.each do |value|
class_eval <<-RUBY, __FILE__, __LINE__ + 1
def #{value}!
self.#{name} = :#{value}
end
def #{value}?
self.#{name} == :#{value}
end
RUBY
end
end
# rubocop:enable Metrics/MethodLength
end
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems