我正在尝试在这里做一些非常简单的事情,但到目前为止我无法让它工作。可能是我在做傻事。
单击圆圈可打开和关闭帖子。您可以看到警报消息正确出现,正在更新参数,但是我无法更改类名。
这是 JS Bin:http://jsbin.com/tusimozo/1/edit
<script type="text/x-handlebars" data-template-name="index">
{{ group-list posts=model }}
</script>
<script type="text/x-handlebars" id="components/group-list">
<div class="row">
<table width="100%">
<thead>
<tr>
<th width="90">Status</th>
<th align="left">Categories</th>
</tr>
</thead>
<tbody>
{{# each item in posts}}
{{list-item published=item.published title=item.title pubDate=item.pub_date}}
{{/each}}
</tbody>
</table>
</div>
</script>
<script type="text/x-handlebars" id="components/list-item">
<tr>
<td>
<a href="#" {{bind-attr class=":post-status published:on:off"}} {{action "publish"}}></a>
</td>
<td align="left">{{title}}</td>
</tr>
</script>
应用程序.js
App = Ember.Application.create();
posts = [{
title: "Items",
published: true
}, {
title: "Boards",
published: false
}];
App.IndexRoute = Ember.Route.extend({
model: function() {
return posts;
}
});
App.ListItemComponent = Ember.Component.extend({
actions: {
publish: function() {
var publishStatus = this.get('published') ? false : true;
this.set('published', publishStatus);
alert(this.get('published') ? 'publish' : 'unpublish');
}
}
});
我在这里错过了什么?
干杯!
最佳答案
所以基本上你应该在组件上使用类绑定(bind)。
App.ListItemComponent = Ember.Component.extend({
tagName:'tr',
classNameBindings: ['isPublished:on:off'],
isPublished: function() {
return this.get('published');
}.property('published'),
actions: {
publish: function() {
this.toggleProperty('published');
}
}
});
JSBIN:
关于javascript - Ember 组件 bind-attr className 没有改变,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22054323/