def polymorphic_url(record_or_hash_or_array, options = {})
record = extract_record(record_or_hash_or_array)
namespace = extract_namespace(record_or_hash_or_array)
args = case record_or_hash_or_array
when Hash; [ record_or_hash_or_array ]
when Array; record_or_hash_or_array.dup
else [ record_or_hash_or_array ]
end
inflection =
case
when options[:action] == "new"
args.pop
:singular
when record.respond_to?(:new_record?) && record.new_record?
args.pop
:plural
else
:singular
end
named_route = build_named_route_call(record_or_hash_or_array, namespace, inflection, options)
send!(named_route, *args)
end