Cyril Fluck questions

Cyril Fluck answers

• ember-data fixture data "Cannot read property 'promise' of undefined"
• ember data serializer data mapping
• Ember-data polymorphic associations
• Unit testing in Ember.js
• what's the difference between find, findAll and findQuery in ember-data
• Ember-Data: How to use `DS.Adapter.findHasMany`
• Ember-data transactions and resubmitting forms
• What's the standard pattern for ember-data validations? (invalid state, becameInvalid...)
• Ember-Data .find() vs .all() - how to control cache?