How to implement "find or create" with Ember Data

Question

Currently I'm hitting a wall with Ember Data loading some data which might exist or might not. If a record does not exist, the web application should create it.

Simple use case: documenting an inventory. If an article does not exist, a new article should be added. If it does exist, then the employee can immediately use the information.

I suspect the adapter find() method to be the source of this problem. It cannot handle a 404 not found error and passing an empty result does not work either.

Probably I am overlooking something trivial, as 'find or create' is quite a regular pattern. Please help...

Answer 1

See this issue, or here's the solution:

findOrCreate: (type, properties)->
  @store.find(type, properties.id).then null, (reason)=>
    if reason.status == 404
      record = @store.recordForId(type, properties.id)
      record.loadedData()
      record.setProperties(properties)
      record.save()
    else
      throw reason

Answer 2

see #296 Already a bug report for this