Module: DirtyAssociations::ClassMethods

Defined in:
lib/dirty_associations.rb

Instance Method Summary collapse

Instance Method Details

#monitor_association_changes(association) ⇒ Object

Creates methods that allows an association to be monitored.

The association parameter should be a string or symbol representing the name of an association.



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# File 'lib/dirty_associations.rb', line 15

def monitor_association_changes(association)
  ids = "#{association.to_s.singularize}_ids"
  [association, ids].each do |name|
    define_method "#{name}=" do |value|
      attribute_will_change!(ids)
      super(value)
    end
  end

  define_method "#{ids}_changed?" do
    changed.include?(ids)
  end

  define_method "#{ids}_previously_changed?" do
    previous_changes.keys.include?(ids)
  end
end