Class: Class

Inherits:
Object
  • Object
show all
Defined in:
lib/extensions/cattr_accessor.rb

Overview

Extends the class object with class and instance accessors for class attributes, just like the native attr* accessors for instance attributes.

class Person
  cattr_accessor :hair_colors
end

Person.hair_colors = [:brown, :black, :blonde, :red]

Instance Method Summary collapse

Instance Method Details

#cattr_accessor(*syms) ⇒ Object 



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# File 'lib/extensions/cattr_accessor.rb', line 47

def cattr_accessor(*syms)
  cattr_reader(*syms)
  cattr_writer(*syms)
end

#cattr_reader(*syms) ⇒ Object 



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# File 'lib/extensions/cattr_accessor.rb', line 10

def cattr_reader(*syms)
  syms.flatten.each do |sym|
    next if sym.is_a?(Hash)
    class_eval("      unless defined? @@\#{sym}  # unless defined? @@hair_colors\n        @@\#{sym} = nil          #   @@hair_colors = nil\n      end                       # end\n                                #\n      def self.\#{sym}           # def self.hair_colors\n        @@\#{sym}                #   @@hair_colors\n      end                       # end\n                                #\n      def \#{sym}                # def hair_colors\n        @@\#{sym}                #   @@hair_colors\n      end                       # end\n    EOS\n  end\nend\n", __FILE__, __LINE__)

#cattr_writer(*syms) ⇒ Object 



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# File 'lib/extensions/cattr_accessor.rb', line 29

def cattr_writer(*syms)
  syms.flatten.each do |sym|
    class_eval("      unless defined? @@\#{sym}                       # unless defined? @@hair_colors\n        @@\#{sym} = nil                               #   @@hair_colors = nil\n      end                                            # end\n                                                     #\n      def self.\#{sym}=(obj)                          # def self.hair_colors=(obj)\n        @@\#{sym} = obj                               #   @@hair_colors = obj\n      end                                            # end\n                                                     #\n      def \#{sym}=(obj)                               # def hair_colors=(obj)\n        @@\#{sym} = obj                               #   @@hair_colors = obj\n      end                                            # end\n    EOS\n  end\nend\n", __FILE__, __LINE__)