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require 'active_support/core_ext/array/extract_options'
class Module
def mattr_reader(*syms)
syms.extract_options!
syms.each do |sym|
class_eval(<<-EOS, __FILE__, __LINE__ + 1)
unless defined? @@#{sym} # unless defined? @@pagination_options
@@#{sym} = nil # @@pagination_options = nil
end # end
def self.#{sym} # def self.pagination_options
@@#{sym} # @@pagination_options
end # end
def #{sym} # def pagination_options
@@#{sym} # @@pagination_options
end # end
EOS
end
end
def mattr_writer(*syms)
options = syms.extract_options!
syms.each do |sym|
class_eval(<<-EOS, __FILE__, __LINE__ + 1)
unless defined? @@#{sym} # unless defined? @@pagination_options
@@#{sym} = nil # @@pagination_options = nil
end # end
def self.#{sym}=(obj) # def self.pagination_options=(obj)
@@#{sym} = obj # @@pagination_options = obj
end # end
EOS
unless options[:instance_writer] == false
class_eval(<<-EOS, __FILE__, __LINE__)
def #{sym}=(obj) # def pagination_options=(obj)
@@#{sym} = obj # @@pagination_options = obj
end # end
EOS
end
end
end
# Extends the module object with module and instance accessors for class attributes,
# just like the native attr* accessors for instance attributes.
#
# module AppConfiguration
# mattr_accessor :google_api_key
# self.google_api_key = "123456789"
#
# mattr_accessor :paypal_url
# self.paypal_url = "www.sandbox.paypal.com"
# end
#
# AppConfiguration.google_api_key = "overriding the api key!"
def mattr_accessor(*syms)
mattr_reader(*syms)
mattr_writer(*syms)
end
end
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