method

cattr_reader

v2.3.8 - Show latest stable - 2 notes - Class: Class

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What's this?

cattr_reader(*syms) public

No documentation

This method has no description. You can help the Ruby on Rails community by adding new notes.

# File activesupport/lib/active_support/core_ext/class/attribute_accessors.rb, line 10
  def cattr_reader(*syms)
    options = syms.extract_options!
    syms.each do |sym|
      next if sym.is_a?(Hash)
      class_eval("unless defined? @@\#{sym}\n@@\#{sym} = nil\nend\n\ndef self.\#{sym}\n@@\#{sym}\nend\n", __FILE__, __LINE__ + 1)

      unless options[:instance_reader] == false
        class_eval("def \#{sym}\n@@\#{sym}\nend\n", __FILE__, __LINE__ + 1)
      end
    end
  end

January 27, 2009 - (v2.1.0 - v2.2.1)

2 thanks

Description

Similar to Ruby’s built-in attr_reader, only it creates a class attribute reader method (as opposed to an instance attribute reader method).

February 2, 2013

0 thanks

Other Example

class Exam
 cattr_reader :code, :description, :points, :instance_reader => false

 @@code = "EXM"
 @@description = "Sent Exam"
 @@points = 1000
end

In this case it’s possible to use

Exam.code # => EXM
Exam.description # => Sent Exam
Exam.points # => 1000

cattr_reader

Related methods

No documentation

Description

Other Example

In this case it’s possible to use