REBOOT Ember Data Paul Chavard Capitaine Train September 24, 2013 

Why ? • Difficult to customize for custom APIs • Fragile States • Competition (Ember Model / EPF) 

How ? • Remove Dirty Lock • Default merge strategy • Replace Error state with Error flag • Promisification • Containerization 

Whats New? • push, update and pushPayload • save on hasMany relationships • Serializer / Adapter rewrite 

Ember Data #ProTips 

Filters Route model: function() { return this.store.filter(’post’, {}, Ember.K); } Controller searchText: ’’, searchTextDidChange: function() { var searchText = this.get(’searchText’); var filterFunction = Ember.isEmpty(searchText) ? Ember.K : function(record) { return record.get(’title’) .toLowerCase() .match(searchText.toLowerCase()); }; this.set(’model.filterFunction’, filterFunction); }.observes(’searchText’), 

Batch Saves Save Multiple Models Ember.RSVP.all(post.get(’comments’).invoke(’save’)) .then(function() { alert(’All Saved!’); }, function(reason) { alert(’There was an error because ’ + reason); }); Save Parent Before Child post.save().then(function() { return comment.save(); }).then(function() { alert(’All Saved!’); }, function(reason) { alert(’There was an error because ’ + reason); }); 

Unload Records Unload Single Record this.store.find(’post’, 1).unloadRecord(); Unload Record and its relationships unloadRecord: function() { this.eachRelationship(function(key, relationship) { if (relationship.kind === ’hasMany’) { this.get(key).toArray().invoke(’unloadRecord’); } else { this.get(key).unloadRecord(); } }, this); this._super(); } 

Ember Extension (Demo) 

The End