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Contents
# encoding: utf-8
module Mongoid
module Association
# Used for converting foreign key values to the correct type based on the
# types of ids that the document stores.
#
module Constrainable
# Convert the supplied object to the appropriate type to set as the
# foreign key for a relation.
#
# @example Convert the object.
# constraint.convert("12345")
#
# @param [ Object ] object The object to convert.
#
# @return [ Object ] The object cast to the correct type.
#
# @since 2.0.0.rc.7
def convert_to_foreign_key(object)
return convert_polymorphic(object) if polymorphic?
field = relation_class.fields["_id"]
if relation_class.using_object_ids?
BSON::ObjectId.mongoize(object)
elsif object.is_a?(::Array)
object.map!{ |obj| field.mongoize(obj) }
else
field.mongoize(object)
end
end
private
def convert_polymorphic(object)
if object.is_a?(Mongoid::Document)
object.id
else
BSON::ObjectId.mongoize(object)
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems