Module: MongoMapper::Plugins::Versioned

Extended by:
ActiveSupport::Concern
Defined in:
lib/mongo_mapper/plugins/version.rb,
lib/mongo_mapper/plugins/versioned.rb,
lib/mongo_mapper/plugins/models/version.rb

Defined Under Namespace

Modules: ClassMethods Classes: Version

Instance Method Summary collapse

Instance Method Details

#create_version ⇒ Object 



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

def create_version
  self.version_number = self.versions.empty? ? 1 : self.versions.last.version_number+1
  self.versions << current_version
end

#current_version ⇒ Object 



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# File 'lib/mongo_mapper/plugins/versioned.rb', line 68

def current_version
  Version.new(:data => self.attributes.slice!(*ignored_keys), :versioned_id => self.id, :version_number => self.version_number)
end

#last_version? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongo_mapper/plugins/versioned.rb', line 63

def last_version?
  return true if versions.empty?
  self.version_number == versions.last.version_number
end

#revert_to(target_version_number) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/versioned.rb', line 49

def revert_to(target_version_number)
  return if self.version_number == target_version_number
  if target_version = version_at(target_version_number)
    self.attributes = target_version.data
    self.version_number = target_version.version_number
  end
end

#should_create_initial_version? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongo_mapper/plugins/versioned.rb', line 82

def should_create_initial_version?
  versions.empty?
end

#should_create_version? ⇒ Boolean

this method might be overwritten by something more sophisticated (esp. in case of EmbeddedDocuments)

Returns:

  • (Boolean) 


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# File 'lib/mongo_mapper/plugins/versioned.rb', line 88

def should_create_version?
  changes.slice!(*ignored_keys).size > 0
end

#version_at(target_version_number) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/versioned.rb', line 72

def version_at(target_version_number)
  versions.where(:version_number => target_version_number).first
end