Class: MongoMapper::Plugins::Associations::BelongsToAssociation

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

Constant Summary

Constants inherited from Base

MongoMapper::Plugins::Associations::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?

Constructor Details

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

Instance Method Details

#add_touch_callbacks ⇒ Object 



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# File 'lib/mongo_mapper/plugins/associations/belongs_to_association.rb', line 29

def add_touch_callbacks
  name        = self.name
  method_name = "belongs_to_touch_after_save_or_destroy_for_#{name}"
  touch       = options.fetch(:touch)

  @model.send(:define_method, method_name) do
    record = send(name)

    unless record.nil?
      if touch == true
        record.touch
      else
        record.touch(touch)
      end
    end
  end

  @model.after_save(method_name)
  @model.after_touch(method_name)
  @model.after_destroy(method_name)

end

#autosave? ⇒ Boolean

Returns:



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# File 'lib/mongo_mapper/plugins/associations/belongs_to_association.rb', line 25

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

#embeddable? ⇒ Boolean

Returns:



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

def embeddable?
  false
end

#proxy_class ⇒ Object 



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# File 'lib/mongo_mapper/plugins/associations/belongs_to_association.rb', line 14

def proxy_class
  @proxy_class ||= polymorphic? ? BelongsToPolymorphicProxy : BelongsToProxy
end

#setup(model) ⇒ Object 



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# File 'lib/mongo_mapper/plugins/associations/belongs_to_association.rb', line 18

def setup(model)
  model.key foreign_key, ObjectId unless model.key?(foreign_key)
  model.key type_key_name, String unless model.key?(type_key_name) if polymorphic?
  super
  add_touch_callbacks if touch?
end

#type_key_name ⇒ Object 



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

def type_key_name
  "#{as}_type"
end