我一直在与7.4级审查问题作斗争，没有运气：
评级不是像Review一样的对象，所以我们的createRating函数会有所不同。我们可以将当前选定的评级添加到我们产品的评级数组中。您需要保存产品以在商店中更新它。
我似乎无法从选择列表中获取值。任何人都可以指出我正确的方向或合作吗？
我的车把代码：
<script type='text/x-handlebars' data-template-name='product'>
<div class='row'>
<div class='col-sm-7'>
<h2>{{title}}</h2>
<h3 class='text-success'>${{price}}</h3>
<p class='text-muted'>{{description}}</p>
<p class='text-muted'>This Product has a {{rating}} star rating!</p>
<p>Finely crafted by {{#link-to 'contact' crafter}}{{crafter.name}}{{/link-to}}.</p>
{{render 'reviews' reviews}}
<div class='new-rating'>
<h3>Rate {{title}}</h3>
</div>
<div class='new-review'>
<h3>Review {{title}}</h3>
{{#if text}}
<p class='text-muted'>{{text}}</p>
{{/if}}
{{textarea valueBinding='text'}}
<button {{action 'createReview'}} class='btn-primary'>Review</button>
</div>
</div>
<div class='col-sm-5'>
<img {{bind-attr src='image'}} class='img-thumbnail img-rounded'/>
</div>
</div>
{{contact-details contact=crafter className='row'}}
{{view Ember.Select content=ratings value=selectedRating}}
<button {{action 'createRating'}} class='btn-primary'>Rating</button>
</script>
我的js代码：
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({
text: '',
ratings: [1,2,3,4,5],
selectedRating: 5,
actions: {
createReview: function(){
var review = this.store.createRecord('review', {
text: this.get('text'),
product: this.get('model'),
reviewedAt: new Date()
});
var controller = this;
review.save().then(function() {
controller.set('text', '');
controller.get('model.reviews').addObject(review);
});
},
createRating: function(){
var rating = this.store.createRecord('rating', {
rating: this.get('selectedRating.value'),
product: this.get('model'),
reviewedAt: new Date()
});
var controller = this;
rating.save().then(function() {
controller.get('model.rating').addObject(rating);
});
}
}
});
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 }),
ratings: DS.attr(),
rating: function(){
return this.get('ratings').reduce(function(previousValue, rating) {
return previousValue + rating;
}, 0) / this.get('ratings').length;
}.property('ratings.@each')
});
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,
ratings: [2,1,3,3]
},
{
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,
ratings: [2,1,3,3]
},
{
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,
ratings: [2,1,3,3]
},
{
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,
ratings: [1,3,3]
},
{
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,
ratings: [2,1,3]
},
{
id: 6,
title: 'Birch Bark Shaving',
price: 999,
description: 'Fresh and easily combustable',
isOnSale: true,
reviews: [],
image: 'images/products/birch.png',
crafter: 201,
ratings: [2,3,5]
}
];
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,
text: "Started a fire in no time!"
},
{
id: 101,
text: "Not the brightest flame, but warm!"
}
];
答案 0 :(得分：1)
经过详细研究，答案结果如下：
createRating: function() {
var prod = this.get('model');
var ratings = this.get('model.ratings');
ratings.addObject(this.selectedRating);
prod.save();
}
答案 1 :(得分：0)
在显示的代码中，您应该使用this.get('selectedRating')而非this.get('selectedRating.value')