Class: Class

Inherits:
Object
  • Object
show all
Defined in:
lib/active_record/support/class_attribute_accessors.rb

Overview

attr_* style accessors for class-variables that can accessed both on an instance and class level.

Instance Method Summary collapse

Instance Method Details

#cattr_accessor(*syms) ⇒ Object 



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# File 'lib/active_record/support/class_attribute_accessors.rb', line 39

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

#cattr_reader(*syms) ⇒ Object

:nodoc:



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# File 'lib/active_record/support/class_attribute_accessors.rb', line 3

def cattr_reader(*syms)
  syms.each do |sym|
    class_eval <<-EOS
      if ! defined? @@#{sym.id2name}
        @@#{sym.id2name} = nil
      end
      
      def self.#{sym.id2name}
        @@#{sym}
      end

      def #{sym.id2name}
        self.class.#{sym.id2name}
      end
    EOS
  end
end

#cattr_writer(*syms) ⇒ Object 



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# File 'lib/active_record/support/class_attribute_accessors.rb', line 21

def cattr_writer(*syms)
  syms.each do |sym|
    class_eval <<-EOS
      if ! defined? @@#{sym.id2name}
        @@#{sym.id2name} = nil
      end
      
      def self.#{sym.id2name}=(obj)
        @@#{sym.id2name} = obj
      end

      def #{sym.id2name}=(obj)
        self.class.#{sym.id2name}=(obj)
      end
    EOS
  end
end