Module: ModelPack::Concern

Included in:
AttributeMethods, Document
Defined in:
lib/model_pack/concern.rb

Overview

Copy&paste from rails/activesupport/lib/active_support/concern.rb

Defined Under Namespace

Classes: MultipleIncludedBlocks

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(base) ⇒ Object

:nodoc:



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# File 'lib/model_pack/concern.rb', line 11

def self.extended(base) #:nodoc:
  base.instance_variable_set(:@_dependencies, [])
end

Instance Method Details

#append_features(base) ⇒ Object 



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# File 'lib/model_pack/concern.rb', line 15

def append_features(base)
  if base.instance_variable_defined?(:@_dependencies)
    base.instance_variable_get(:@_dependencies) << self
    return false
  else
    return false if base < self
    @_dependencies.each { |dep| base.send(:include, dep) }
    super
    base.extend const_get(:ClassMethods) if const_defined?(:ClassMethods)
    base.class_eval(&@_included_block) if instance_variable_defined?(:@_included_block)
  end
end

#class_methods(&class_methods_module_definition) ⇒ Object 



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# File 'lib/model_pack/concern.rb', line 38

def class_methods(&class_methods_module_definition)
  mod = const_defined?(:ClassMethods) ?
    const_get(:ClassMethods) :
    const_set(:ClassMethods, Module.new)

  mod.module_eval(&class_methods_module_definition)
end

#included(base = nil, &block) ⇒ Object 



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# File 'lib/model_pack/concern.rb', line 28

def included(base = nil, &block)
  if base.nil?
    raise MultipleIncludedBlocks if instance_variable_defined?(:@_included_block)

    @_included_block = block
  else
    super
  end
end