In the "Hands-On" chapter under the "Route hooks" section, I ran into an issue with model.rollback() where it was not defined as a function. Apparently it's been deprecated as of Ember-cli 2.6.1 (the version I'm using with your tutorial) in favor of model.rollbackAttributes(). So I used that function instead and the issue has been resolved. I just thought I give you a heads up in case you haven't noticed the issue yet.
In the "Hands-On" chapter under the "Route hooks" section, I ran into an issue with
model.rollback()where it was not defined as a function. Apparently it's been deprecated as of Ember-cli 2.6.1 (the version I'm using with your tutorial) in favor ofmodel.rollbackAttributes(). So I used that function instead and the issue has been resolved. I just thought I give you a heads up in case you haven't noticed the issue yet.