我坚持这个课程的当前问题是：
我们希望评级成为评论对象的一部分，因此请继续将其添加到Review对象中。还要在每个审查夹具上添加一个等级，设置为1到5之间的数字。
我已经为每个灯具添加了正确的评级，但我正在努力解决这个问题究竟要求我调整。其他两个问题在这个例子中已经过去了。我的假设是我必须将评级纳入评论财产，但这个级别是一个痛苦。
没有我正常的开发工具，它没有告诉我这是什么错误......
任何提示？
我的代码块：
var App = Ember.Application.create({
LOG_TRANSITIONS: true
});
App.Router.map(function() {
this.route('credits', { path: '/thanks' });
this.resource('products', function() {
this.resource('product', { path: '/:product_id' });
this.route('onsale');
this.route('deals');
});
this.resource('contacts', function() {
this.resource('contact', { path: '/:contact_id' });
});
});
App.IndexController = Ember.ArrayController.extend({
productsCount: Ember.computed.alias('length'),
logo: 'images/logo-small.png',
time: function() {
return (new Date()).toDateString();
}.property(),
onSale: function() {
return this.filterBy('isOnSale').slice(0,3);
}.property('@each.isOnSale')
});
App.ContactsIndexController = Ember.Controller.extend({
contactName: 'Anostagia',
avatar: 'images/avatar.png',
open: function() {
return ((new Date()).getDay() === 0) ? "Closed" : "Open";
}.property()
});
App.ProductsController = Ember.ArrayController.extend({
sortProperties: ['title']
});
App.ContactsController = Ember.ArrayController.extend({
sortProperties: ['name'],
contactsCount: Ember.computed.alias('length')
});
App.ReviewsController = Ember.ArrayController.extend({
sortProperties: ['reviewedAt'],
sortAscending: false
});
App.ContactProductsController = Ember.ArrayController.extend({
sortProperties: ['title']
});
App.ProductController = Ember.ObjectController.extend({
ratings: [1,2,3,4,5],
isNotReviewed: Ember.computed.alias('review.isNew'),
review: function(){
return this.store.createRecord('review',{
product: this.get('model'),
rating: this.get('rating')
});
}.property('model'),
actions: {
createReview: function(){
var controller = this;
this.get('review').set('reviewedAt', new Date());
this.get('review').save().then(function(review){
controller.get('model.reviews').addObject(review);
});
}
}
});
App.ProductsRoute = Ember.Route.extend({
model: function() {
return this.store.findAll('product');
}
});
App.ContactsRoute = Ember.Route.extend({
model: function() {
return this.store.findAll('contact');
}
});
App.IndexRoute = Ember.Route.extend({
model: function(){
return this.store.findAll('product');
}
});
App.ProductsIndexRoute = Ember.Route.extend({
model: function(){
return this.store.findAll('product');
}
});
App.ProductsOnsaleRoute = Ember.Route.extend({
model: function(){
return this.modelFor('products').filterBy('isOnSale');
}
});
App.ProductsDealsRoute = Ember.Route.extend({
model: function(){
return this.modelFor('products').filter(function(product){
return product.get('price') < 500;
});
}
});
App.ProductDetailsComponent = Ember.Component.extend({
reviewsCount: Ember.computed.alias('product.reviews.length'),
hasReviews: function(){
return this.get('reviewsCount') > 0;
}.property('reviewsCount')
});
App.ContactDetailsComponent = Ember.Component.extend({
productsCount: Ember.computed.alias('contact.products.length'),
isProductive: function() {
return this.get('productsCount') > 3;
}.property('productsCount')
});
App.ProductView = Ember.View.extend({
isOnSale: Ember.computed.alias('controller.isOnSale'),
classNameBindings: ['isOnSale']
});
App.ApplicationAdapter = DS.FixtureAdapter.extend();
App.Product = DS.Model.extend({
title: DS.attr('string'),
price: DS.attr('number'),
description: DS.attr('string'),
isOnSale: DS.attr('boolean'),
image: DS.attr('string'),
reviews: DS.hasMany('review', { async: true }),
crafter: DS.belongsTo('contact', { async: true }),
rating: function() {
if(this.get('reviews.length') === 0) { return 0; }
return this.get('reviews').reduce(function(previousValue, review) {
return previousValue + review.get('rating');
}, 0) / this.get('reviews.length');
}.property('reviews.@each.rating')
});
App.Product.FIXTURES = [
{ id: 1,
title: 'Flint',
price: 99,
description: 'Flint is a hard, sedimentary cryptocrystalline form of the mineral quartz, categorized as a variety of chert.',
isOnSale: true,
image: 'images/products/flint.png',
reviews: [100,101],
crafter: 200
},
{
id: 2,
title: 'Kindling',
price: 249,
description: 'Easily combustible small sticks or twigs used for starting a fire.',
isOnSale: false,
image: 'images/products/kindling.png',
reviews: [],
crafter: 201
},
{
id: 3,
title: 'Matches',
price: 499,
description: 'One end is coated with a material that can be ignited by frictional heat generated by striking the match against a suitable surface.',
isOnSale: true,
reviews: [],
image: 'images/products/matches.png',
crafter: 201
},
{
id: 4,
title: 'Bow Drill',
price: 999,
description: 'The bow drill is an ancient tool. While it was usually used to make fire, it was also used for primitive woodworking and dentistry.',
isOnSale: false,
reviews: [],
image: 'images/products/bow-drill.png',
crafter: 200
},
{
id: 5,
title: 'Tinder',
price: 499,
description: 'Tinder is easily combustible material used to ignite fires by rudimentary methods.',
isOnSale: true,
reviews: [],
image: 'images/products/tinder.png',
crafter: 201
},
{
id: 6,
title: 'Birch Bark Shaving',
price: 999,
description: 'Fresh and easily combustable',
isOnSale: true,
reviews: [],
image: 'images/products/birch.png',
crafter: 201
}
];
App.Contact = DS.Model.extend({
name: DS.attr('string'),
about: DS.attr('string'),
avatar: DS.attr('string'),
products: DS.hasMany('product', { async: true })
});
App.Contact.FIXTURES = [
{
id: 200,
name: 'Giamia',
about: 'Although Giamia came from a humble spark of lightning, he quickly grew to be a great craftsman, providing all the warming instruments needed by those close to him.',
avatar: 'images/contacts/giamia.png',
products: [1,4]
},
{
id: 201,
name: 'Anostagia',
about: 'Knowing there was a need for it, Anostagia drew on her experience and spearheaded the Flint & Flame storefront. In addition to coding the site, she also creates a few products available in the store.',
avatar: 'images/contacts/anostagia.png',
products: [2,3,5,6]
}
];
App.Review = DS.Model.extend({
text: DS.attr('string'),
reviewedAt: DS.attr('date'),
product: DS.belongsTo('product')
});
App.Review.FIXTURES = [
{
id: 100,
rating: 2,
text: "Started a fire in no time!"
},
{
id: 101,
rating: 4,
text: "Not the brightest flame, but warm!"
}
];
我最好的猜测与此功能有关...
review: function(){
return this.store.createRecord('review',{
product: this.get('model'),
rating: this.get('rating')
});
}.property('model'),
答案 0 :(得分：1)
经过进一步审查和董事会的一些帮助后，就像将其添加到模型一样简单：
App.Review = DS.Model.extend({
text: DS.attr('string'),
reviewedAt: DS.attr('date'),
product: DS.belongsTo('product'),
rating: DS.attr('number')
});