Module: MongoMapper::Plugins::Dirty::InstanceMethods

Defined in:
lib/mongo_mapper/plugins/dirty.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 6

def method_missing(method, *args, &block)
  if method.to_s =~ /(_changed\?|_change|_will_change!|_was)$/
    method_suffix = $1
    key = method.to_s.gsub(method_suffix, '')

    if key_names.include?(key)
      case method_suffix
        when '_changed?'
          key_changed?(key)
        when '_change'
          key_change(key)
        when '_will_change!'
          key_will_change!(key)
        when '_was'
          key_was(key)
      end
    else
      super
    end
  else
    super
  end
end

Instance Method Details

#changed ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 34

def changed
  changed_keys.keys
end

#changed? ⇒ Boolean

Returns:



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 30

def changed?
  !changed_keys.empty?
end

#changes ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 38

def changes
  changed.inject({}) { |h, key| h[key] = key_change(key); h }
end

#initialize ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 42

def initialize(*)
  # never register initial id assignment as a change
  super.tap { changed_keys.delete('_id') }
end

#initialize_from_database ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 47

def initialize_from_database(*)
  super.tap { changed_keys.clear }
end

#reload ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 64

def reload(*)
  document = super
  changed_keys.clear
  document
end

#save ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 51

def save(*)
  if status = super
    changed_keys.clear
  end
  status
end

#save! ⇒ Object 



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# File 'lib/mongo_mapper/plugins/dirty.rb', line 58

def save!(*)
  status = super
  changed_keys.clear
  status
end