你好,我已经被困了好几天,如何显示一个帖子的删除按钮,仅为该帖子的作者在Ember.js(我使用ember-cli构建这个)。我不知道在哪里放的逻辑"当悬停一个帖子(列表),如果帖子的作者等于当前登录的用户,然后显示删除按钮"我迷路了。请帮帮我。
模板app/templates/posts.hbs
{{#each}}
<div class="eachPost">
{{#view 'posts'}}
<div class="postProfilePhoto">
{{#link-to 'users' }}
<img src="" alt="Profile Photo">
{{/link-to}}
</div>
<div class="eachPostContent">
<p class="postAuthor"><strong>{{user.id}}</strong></p>
<p class="postContent">{{body}}</p>
<span class="timePosted"><em>somtimes ago</em></span>
{{#if view.entered}}{{#if isAuthor}}
<a class="deletePost" {{action "removePost" this}}>Delete</a>
{{/if}}{{/if}}
</div>
{{/view}}
</div>
{{/each}}
视图app/views/posts.js
var Posts = Ember.View.extend({
classNames: ['eachPostContent'],
mouseEnter: function(event){
this.set('entered', true);
this.get('controller').send('isAuthor', this.get('post').user);
},
mouseLeave: function(){
this.set('entered', false);
}
});
export default Posts;
控制器app/controllers/posts.js
var PostsController = Ember.ArrayController.extend({
...
isAuthor: function(user){
if(this.get('session').user !== null && user === this.get('session').user){
return true;
} else {
return false;
console.log('You are not author');
}
}
}
});
export default PostsController;
in app/templates/posts.hbs
{{#each itemController="post"}}
<div class="eachPost">
create app/controllers/post.js
var PostController = Ember.ObjectController.extend({
isAuthor: function(){
return this.get('user') === this.get('session').user;
}.property('user')
});
export default PostController;
从app/views/posts.js
中删除以下代码this.get('controller').send('isAuthor', this.get('post').user);
并从app/controllers/posts.js
中删除isAuthor
函数
如上所述,您将需要使用itemController
var PostsController = Ember.ArrayController.extend({
itemController:'post',
...
});
然后在itemController
中你将创建一个计算属性来检查用户id和文章的作者id
var PostController = Ember.ObjectController.extend({
isAuthor: function(){
//assuming the user property exists on an individual post model
return this.get('user') === this.get('session').user;
}.property('user')
})