Contents

# encoding: UTF-8
module MongoMapper
  module Plugins
    module Associations
      class SingleAssociation < Base
        def setup(model)
          @model = model

          model.associations_module.module_eval(<<-end_eval, __FILE__, __LINE__ + 1)
            def #{name}
              proxy = get_proxy(associations[#{name.inspect}])
              proxy.nil? ? nil : proxy.read
            end

            def #{name}=(value)
              association = associations[#{name.inspect}]
              proxy = get_proxy(association)

              if proxy.nil? || proxy.target != value
                proxy = build_proxy(association)
              end

              proxy.replace(value)
              proxy.read
            end

            def #{name}?
              get_proxy(associations[#{name.inspect}]).present?
            end

            def build_#{name}(attrs={}, &block)
              get_proxy(associations[#{name.inspect}]).build(attrs, &block)
            end

            def create_#{name}(attrs={}, &block)
              get_proxy(associations[#{name.inspect}]).create(attrs, &block)
            end

            def create_#{name}!(attrs={}, &block)
              get_proxy(associations[#{name.inspect}]).create!(attrs, &block)
            end
          end_eval
        end
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
mongo_mapper-0.15.3	lib/mongo_mapper/plugins/associations/single_association.rb
mongo_mapper-0.15.2	lib/mongo_mapper/plugins/associations/single_association.rb
mongo_mapper-0.15.1	lib/mongo_mapper/plugins/associations/single_association.rb