couchrest_model/lib/couchrest/more/property.rb
2009-05-28 17:56:42 -07:00

59 lines
No EOL
1.6 KiB
Ruby

module CouchRest
# Basic attribute support for adding getter/setter + validation
class Property
attr_reader :name, :type, :read_only, :alias, :default, :casted, :init_method, :options
# attribute to define
def initialize(name, type = nil, options = {})
@name = name.to_s
parse_type(type)
parse_options(options)
self
end
private
def parse_type(type)
if type.nil?
@type = 'String'
elsif type.is_a?(Array) && type.empty?
@type = 'Array'
else
@type = type.is_a?(Array) ? [type.first.to_s] : type.to_s
end
end
def parse_options(options)
return if options.empty?
@validation_format = options.delete(:format) if options[:format]
@read_only = options.delete(:read_only) if options[:read_only]
@alias = options.delete(:alias) if options[:alias]
@default = options.delete(:default) unless options[:default].nil?
@casted = options[:casted] ? true : false
@init_method = options[:send] ? options.delete(:send) : 'new'
@options = options
end
end
end
class CastedArray < Array
attr_accessor :casted_by
def << obj
obj.casted_by = self.casted_by if obj.respond_to?(:casted_by)
super(obj)
end
def push(obj)
obj.casted_by = self.casted_by if obj.respond_to?(:casted_by)
super(obj)
end
def []= index, obj
obj.casted_by = self.casted_by if obj.respond_to?(:casted_by)
super(index, obj)
end
end