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Contents
module Mongoid #:nodoc:
module Associations #:nodoc:
class HasManyAssociation < DelegateClass(Array) #:nodoc:
# Creates the new association by finding the attributes in
# the parent document with its name, and instantiating a
# new document for each one found. These will then be put in an
# internal array.
#
# This then delegated all methods to the array class since this is
# essentially a proxy to an array itself.
def initialize(association_name, document)
@klass = association_name.to_s.classify.constantize
attributes = document.attributes[association_name]
@documents = attributes ? attributes.collect do |attribute|
child = @klass.new(attribute)
child.parent = document
child
end : []
super(@documents)
end
# Builds a new Document and adds it to the association collection. The
# document created will be of the same class as the others in the
# association, and the attributes will be passed into the constructor.
#
# Returns the newly created object.
def build(attributes)
object = @klass.new(attributes)
push(object)
object
end
end
end
end
Version data entries
4 entries across 4 versions & 2 rubygems