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# frozen-string-literal: true
module Mobility
module Plugins
=begin
Takes arguments, converts them to strings, and stores in an array +@names+,
made available with an +attr_reader+. Also provides some convenience methods
for aggregating attributes.
=end
module Attributes
extend Plugin
# Attribute names for which accessors will be defined
# @return [Array<String>] Array of names
attr_reader :names
initialize_hook do |*names|
@names = names.map(&:to_s).freeze
end
# Show useful information about this module.
# @return [String]
def inspect
"#<Translations @names=#{names.join(", ")}>"
end
included_hook do |klass|
names = @names
klass.class_eval do
extend ClassMethods
names.each { |name| mobility_attributes << name.to_s }
mobility_attributes.uniq!
rescue FrozenError
raise FrozenAttributesError, "Attempting to translate these attributes on #{klass}, which has already been subclassed: #{names.join(', ')}."
end
end
module ClassMethods
# Return true if attribute name is translated on this model.
# @param [String, Symbol] Attribute name
# @return [Boolean]
def mobility_attribute?(name)
mobility_attributes.include?(name.to_s)
end
# Return translated attribute names on this model.
# @return [Array<String>] Attribute names
def mobility_attributes
@mobility_attributes ||= []
end
def inherited(klass)
super
attrs = mobility_attributes.freeze # ensure attributes are not modified after being inherited
klass.class_eval { @mobility_attributes = attrs.dup }
end
end
class FrozenAttributesError < Error; end
end
register_plugin(:attributes, Attributes)
end
end
Version data entries
19 entries across 19 versions & 1 rubygems