bre*_*eke 1 javascript vue.js vuetify.js
因此,我正在用通过API提取的项目填充数据表,它工作正常,但是如果我要编辑任何字段,则效果不佳。
仅当我手动执行搜索或排序之类的操作时,此项目才会更新。(在数据表内部)
我要修改的字段item.tuning,并item.url通过getTab()
<v-data-table
class="tableElem"
:headers="headers"
:items="playlist"
:loading="loadingPlaylist"
:search="search"
:pagination.sync="pagination"
:rows-per-page-items="[15]"
hide-actions
>
<v-progress-linear slot="progress" color="purple" indeterminate></v-progress-linear>
<template slot="items" slot-scope="props">
<td>{{ props.item.artist }}</td>
<td class="text-xs-right">{{ props.item.track }}</td>
<td class="text-xs-right">{{ props.item.tuning | tuning }}</td>
<td class="text-xs-right">
<v-btn
v-if="props.item.url"
depressed outline light
style="margin-top:1rem;margin-bottom:1rem;"
:href="props.item.url"
target="!blank">
Tab
</v-btn>
<div class="text-xs-center" v-else-if="props.item.url == false">No tab :(</div>
<v-btn
v-else
depressed outline light
style="margin-top:1rem;margin-bottom:1rem;"
v-on:click="getTab(props.item.artist, props.item.track, props.item)">
Get Tab
</v-btn>
</td>
</template>
<v-alert slot="no-results" :value="true" style="color:black;" icon="warning">
Your search for "{{ search }}" found no results.
</v-alert>
</v-data-table>
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方法:
getTab(artist, track, item) {
//const tabURL = "https://stark-beyond-77127.herokuapp.com/spotify/gettab";
let itemIndex = this.playlist.indexOf(item)
const tabURL = "http://localhost:5000/spotify/gettab";
const tabJSON = {
artist: artist,
track: track
};
axios.post(tabURL, tabJSON).then(response => {
let tuning = response.data[0].tuning;
let url = response.data[0].url;
this.playlist[itemIndex] = { ...this.playlist[itemIndex], ...{ tuning: tuning, url: url } };
console.log(this.playlist[itemIndex]);
});
}
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我在这里的猜测是,我必须使用compute:或watch:但不知道如何实现它。谢谢
let itemIndex = this.playlist.indexOf(item)
let editedItem = { ...this.playlist[itemIndex], ...{ tuning: tuning, url: url } };
this.playlist.splice(itemIndex, 1, editedItem)
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解决问题。我猜想拼接会强制进行dom刷新,而直接编辑数组则不会。
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