Module: UseConfig::ClassMethods

Defined in:
lib/use_config.rb

Overview

This module contains class methods use_config and drop_config.

Instance Method Summary collapse

Instance Method Details

#drop_config(name, options = {}) ⇒ Object

Removes configuration access methods



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# File 'lib/use_config.rb', line 48

def drop_config(name, options = {})
  if respond_to? name
    conf = send(name)
    if conf.respond_to? :configuration? and conf.configuration?
      UseConfig::Configuration.drop_conf(self, name)
      metaclass = class << self; self; end
      metaclass.instance_eval do
        remove_method name.to_sym
      end
      remove_method name.to_sym
    end
  end
end

#use_config(name, options = {}, &block) ⇒ Object

Adds configuration hash readed from config/name.yaml file to configuration class, and generates configuration access methods.



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# File 'lib/use_config.rb', line 23

def use_config(name, options = {}, &block)
  metaclass = class << self; self; end

  if self.respond_to? name
    conf = self.send(name)
    unless conf.respond_to? :configuration? and conf.configuration?
      raise "Method '#{name}' already in use"
    end
  end

  # Generates class accessor.
  metaclass.instance_eval do
    attr_accessor name
  end
  self.send "#{name}=".to_sym, UseConfig::Configuration.add_conf(self, name, options, &block)

  # Generates instance accessor.
  class_eval <<-EVAL
    def #{name}
      self.class.#{name}
    end
  EVAL
end