如何在呈现URL /#/ persons / 1时,获取以下示例代码,不仅可以呈现人员数据,还可以呈现该人员的电话号码。我尝试用{{#each phoneNumber in phoneNumbers}}
循环通过电话号码,但我必须有一个基本的理解错误。
现在我只得到:
app.js
App = Ember.Application.create({
LOG_TRANSITIONS: true,
rootElement: '#container'
});
// Router
App.Router.map(function() {
this.resource('persons', function() {
this.resource('person', { path: ':person_id' });
});
this.resource('phoneNumbers', function() {
this.resource('phoneNumber', { path: ':phone_number_id' });
});
});
App.PersonsRoute = Ember.Route.extend({
model: function() {
return App.Person.find();
}
});
App.PhoneNumbersRoute = Ember.Route.extend({
model: function() {
return App.PhoneNumber.find();
}
});
// Models
App.Store = DS.Store.extend({
revision: 11,
adapter: 'DS.FixtureAdapter'
});
App.Person = DS.Model.extend({
firstName: DS.attr('string'),
lastName: DS.attr('string'),
phoneNumbers: DS.hasMany('App.PhoneNumber')
});
App.PhoneNumber = DS.Model.extend({
number: DS.attr('string'),
person: DS.belongsTo('App.Person')
});
App.Person.FIXTURES = [{
id: 1,
firstName: 'X',
lastName: 'Smith'
}, {
id: 2,
firstName: 'Y',
lastName: 'Smith'
}];
App.PhoneNumber.FIXTURES = [{
id: 1,
person_id: 1,
number: '20'
}, {
id: 2,
person_id: 1,
number: '23'
}, {
id: 3,
person_id: 2,
number: '42'
}];
的index.html
<!DOCTYPE html>
<html lang="en">
<head>
<title>Phone book</title>
</head>
<body>
<div id='container'></div>
<script type="text/x-handlebars" data-template-name="application">
{{outlet}}
</script>
<script type="text/x-handlebars" data-template-name="persons">
<p>All people:</p>
<ul>
{{#each controller}}
<li>{{firstName}} {{lastName}}</li>
{{/each}}
</ul>
{{outlet}}
</script>
<script type="text/x-handlebars" data-template-name="person">
<h1>{{firstName}} {{lastName}}</h1>
{{#if phoneNumbers.length}}
<ul>
{{#each phoneNumber in phoneNumbers}}
<li>{{phoneNumber.number}}</li>
{{/each}}
</ul>
{{/if}}
</script>
<script type="text/x-handlebars" data-template-name="phone_numbers">
<ul>
{{#each controller}}
<li>{{number}}</li>
{{/each}}
</ul>
{{outlet}}
</script>
<script type="text/x-handlebars" data-template-name="phone_number">
<h1>{{number}}</h1>
</script>
</body>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="js/handlebars.js"></script>
<script type="text/javascript" src="js/ember.js"></script>
<script type="text/javascript" src="js/ember-data.js"></script>
<script type="text/javascript" src="js/app.js"></script>
</html>
答案 0 :(得分:8)
在这方面,Ember-data不像ActiveRecord那样:当你使用has_many
时,你必须拥有一个id
的数组属性作为记录。在互惠模型上为所有者提供外键是不够的。
尝试将phoneNumbers: [1, 2]
添加到您的第一个Person
灯具中,将phoneNumbers: [3]
添加到第二个灯具中。
如果您使用的是RESTAdapter,那么这些关键名称将改为phone_number_ids
。如果您使用active_model_serializers
,则可以使用embed
功能自动包含一系列ID。