Provides conversions to and from BSON::ObjectIds and Strings, Arrays, and Hashes.
Convert the supplied arguments to object ids based on the class settings.
@todo Durran: This method can be refactored.
@example Convert a string to an object id
BSON::ObjectId.convert(Person, "4c52c439931a90ab29000003")
@example Convert an array of strings to object ids.
BSON::ObjectId.convert(Person, [ "4c52c439931a90ab29000003" ])
@example Convert a hash of id strings to object ids.
BSON::ObjectId.convert(Person, { :_id => "4c52c439931a90ab29000003" })
@param [ Class ] klass The class to convert the ids for. @param [ Object, Array, Hash ] args The object to convert.
@raise BSON::InvalidObjectId If using object ids and passed bad
strings.
@return [ BSON::ObjectId, Array, Hash ] The converted object ids.
@since 2.0.0.rc.7
# File lib/mongoid/extensions/object_id/conversions.rb, line 32 def convert(klass, args, reject_blank = true) return args if args.is_a?(BSON::ObjectId) || !klass.using_object_ids? case args when ::String return nil if args.blank? if args.unconvertable_to_bson? args else BSON::ObjectId.legal?(args) ? BSON::ObjectId.from_string(args) : args end when ::Array args.delete_if { |arg| arg.blank? } if reject_blank args.replace(args.map { |arg| convert(klass, arg, reject_blank) }) when ::Hash args.tap do |hash| hash.each_pair do |key, value| next unless klass.object_id_field?(key) hash[key] = convert(klass, value, reject_blank) end end else args end end
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