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Versions: 13
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Stored size: 1.51 KB
Contents
module Superstore
module AttributeMethods
module Typecasting
extend ActiveSupport::Concern
included do
class_attribute :attribute_definitions
self.attribute_definitions = {}
%w(array boolean date float integer json string time).each do |type|
instance_eval <<-EOV, __FILE__, __LINE__ + 1
def #{type}(*args)
options = args.extract_options!
args.each do |name|
attribute(name, options.merge(:type => :#{type}))
end
end
EOV
end
end
module ClassMethods
def inherited(child)
super
child.attribute_definitions = attribute_definitions.dup
end
#
# attribute :name, type: :string
# attribute :ammo, type: :integer
#
def attribute(name, options)
type_name = options[:type]
type_class = Superstore::Type.get_type_class(type_name) || (raise "Unknown type #{type_name}")
attribute_definitions[name.to_s] = AttributeMethods::Definition.new(self, name, type_class, options)
end
def typecast_attribute(name, value)
if attribute_definition = attribute_definitions[name.to_s]
attribute_definition.instantiate(value)
else
raise NoMethodError, "Unknown attribute #{name.inspect}"
end
end
def type_for(attribute)
attribute_definitions[attribute.to_s].type
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems