Ember：如果找不到，则创建一个新记录

I have a route that pulls data from a REST API. The first time a user enters, there won't be any data saved, so I need to create the record with some default values. I figure I need to do this here in the route so the user can see my default values (which in my actual app aren't just null), rather than creating during the I have a route that pulls data from a REST API.