Class: MongoMapper::Plugins::Associations::OneAssociation

Inherits:
SingleAssociation show all
Defined in:
lib/mongo_mapper/plugins/associations/one_association.rb

Constant Summary

Constants inherited from Base

Base::AssociationOptions

Instance Attribute Summary

Attributes inherited from Base

#name, #options, #query_options

Instance Method Summary collapse

Methods inherited from Base

#as, #as?, #class_name, #foreign_key, #in_array?, #initialize, #ivar, #klass, #polymorphic?, #touch?, #type_key_name

Constructor Details

This class inherits a constructor from MongoMapper::Plugins::Associations::Base

Instance Method Details

#autosave? ⇒ Boolean

Returns:



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

def autosave?
  options.fetch(:autosave, embeddable?)
end

#embeddable? ⇒ Boolean

Returns:



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

def embeddable?
  klass.embeddable?
end

#proxy_class ⇒ Object 



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# File 'lib/mongo_mapper/plugins/associations/one_association.rb', line 10

def proxy_class
  @proxy_class ||=
    if klass.embeddable?
      polymorphic? ? OneEmbeddedPolymorphicProxy : OneEmbeddedProxy
    elsif as?
      OneAsProxy
    else
      OneProxy
    end
end

#setup(model) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/associations/one_association.rb', line 21

def setup(model)
  super

  association = self
  options = self.options

  model.before_destroy do
    if !association.embeddable?
      proxy = self.get_proxy(association)

      unless proxy.nil?
        case options[:dependent]
          when :destroy then proxy.destroy
          when :delete  then proxy.delete
          else proxy.nullify
        end
      end
    end
  end
end