core/lib/spree/core/preferences/preferable_class_methods.rb
module Spree::Preferences
module PreferableClassMethods
def preference(name, type, *args)
options = args.extract_options!
options.assert_valid_keys(:default, :deprecated)
default = options[:default]
default = -> { options[:default] } unless default.is_a?(Proc)
deprecated = options[:deprecated]
# cache_key will be nil for new objects, then if we check if there
# is a pending preference before going to default
define_method preference_getter_method(name) do
preferences.fetch(name) do
default.call
end
end
define_method preference_setter_method(name) do |value|
value = convert_preference_value(value, type)
preferences[name] = value
Spree::Deprecation.warn("`#{name}` is deprecated. #{deprecated}") if deprecated
# If this is an activerecord object, we need to inform
# ActiveRecord::Dirty that this value has changed, since this is an
# in-place update to the preferences hash.
preferences_will_change! if respond_to?(:preferences_will_change!)
end
define_method preference_default_getter_method(name), &default
define_method preference_type_getter_method(name) do
type
end
define_method preference_deprecated_getter_method(name) do
deprecated
end
end
def preference_getter_method(name)
"preferred_#{name}".to_sym
end
def preference_setter_method(name)
"preferred_#{name}=".to_sym
end
def preference_default_getter_method(name)
"preferred_#{name}_default".to_sym
end
def preference_deprecated_getter_method(name)
"preferred_#{name}_deprecated".to_sym
end
def preference_type_getter_method(name)
"preferred_#{name}_type".to_sym
end
end
end