从数据库获取数据后,我需要更新组件。 但我收到一条错误消息。我已经尝试过v-if和v-show,但我得到了相同的结果。
我要更新的componenet是modal
<div>
<b-modal id="modal-xl"
ok-title="next"
:size="modalSize"
@ok.prevent="launchContentModal"
@cancel="resetPostModal"
hide-header-close
no-close-on-backdrop>
<add-post :postTitle="postTitle"
:postTopic="postTopic"
:postType="postType">
</add-post>
<add-content v-show="post.id"
:postType="postType">
</add-content>
<ArticlesEditor v-show=" post.id && post.postType.id">
</ArticlesEditor>
</b-modal>
</div>
,数据对象是:
data(){
return {
postTitle:'',
topic:'',
postTopic:[],
postType: {title: 'video',id:1},
user:{},
post:{
id:'',
postTopic:[],
postType:{
title:'',
id:'',
},
},
}
请求方法是:
launchContentModal(){
if(!this.postTitle) this.$root.$emit('noTitleProvided');
else if(!this.postTopic[0]) this.$root.$emit('noTopicProvided');
else {
this.post = { title: this.postTitle, topics:this.postTopic, type: this.postType};
ResourceCenter.save(this.department, this.user, this.post)
.catch(({response}) =>alert(response.data))
.then(({data}) => {
this.post = data;
});
}
},
发送保存请求后,我正确获得了响应, 这是响应对象:
{"title":"sdf","client_id":"12","department_id":"327","type":"ebook","type_id":2,"user_id":668,"updated_at":"2019-05-08 09:15:44","created_at":"2019-05-08 09:15:44","id":59} ```
并在正确获得响应更新后发布对象:
post:{"title":"sdf","client_id":"12","department_id":"327","type":"ebook","type_id":2,"user_id":668,"updated_at":"2019-05-08 09:15:44","created_at":"2019-05-08 09:15:44","id":59}
预期结果:应该更新模式,并显示添加内容的组件。
错误消息是: [Vue警告]:渲染错误:“ TypeError:无法读取未定义的属性'id'”
我希望解释清楚
答案 0 :(得分:0)
您的回复中没有post.postType
,但是您正在从模板访问post.postType.id
:
<ArticlesEditor v-show=" post.id && post.postType.id">
在这里post.postType = undefined
并尝试访问post.postType.id
,因此出现错误:
[Vue警告]:渲染错误:“ TypeError:无法读取未定义的属性'id'”