问题描述
问题:尝试将变量值从 JS 传递到 XML 时,只有最后一个条目使用 t-foreach
指令呈现。
当前结果:只有最后一项进入 DOM
<div class="p-3 bg-light">
<h5>ertyujbhjkl</h5>
<p>buy cake</p>
<p>fjkjjjjj</p>
</div>
预期:每个项目都应该呈现
<div class="p-3 bg-light">
<h5>fsfgshsj</h5>
<p>buy milk</p>
<p>yuu</p>
</div>
<div class="p-3 bg-light">
<h5>ertyujbhjkl</h5>
<p>buy cake</p>
<p>fjkjjjjj</p>
</div>
代码:
JS
function app() {
class TestCall extends owl.Component {
constructor() {
super(...arguments);
this.items = [
{
id: 3,title: "fsfgshsj",date: "buy milk",about: "yuu",},{
id:4,title: "ertyujbhjkl",date: "buy cake",about: "fjkjjjjj",];
}
}
class App extends owl.Component { }
App.components = { TestCall };
//------------------------------------------------------------------------------
// Application Startup
//------------------------------------------------------------------------------
owl.mount(App,{ target: document.body });
}
/**
* Initialization code
* This code load templates,and make sure everything is properly connected.
*/
async function start() {
let templates;
try {
templates = await owl.utils.loadFile('app.xml');
console.log('found')
} catch (e) {
console.error(`This app requires a static server. If you have python installed,try 'python app.py'`);
return;
}
const env = { qweb: new owl.QWeb({ templates }) };
owl.Component.env = env;
await owl.utils.whenReady();
app();
}
start();
模板:
<templates>
<t t-name="TestCall" t-foreach="items" t-as="item">
<div class="p-3 bg-light" t-key="item.id">
<h5 t-esc="item.title"></h5>
<p t-esc="item.date"></p>
<p t-raw="item.about"></p>
</div>
</t>
<div t-name="App" class="app">
<TestCall />
</div>
</templates>
解决方法
如a github issue中所述,
从 Owl ged-odoo 的评论来实现所需的功能:
- 将
<t t-name="TestCall" ...
行改为<div t-name="TestCall">
- 将
t-foreach
移到div
应用程序下方
生成的代码 XML 是:
<div t-name="TestCall" >
<div class="p-3 bg-light" t-foreach="items" t-as="item" t-key="item.id">
<h5 t-esc="item.title"></h5>
<p t-esc="item.date"></p>
<p t-raw="item.about"></p>
</div>
</div>
好消息:Gery 承诺将从 OWL 2.0 开始支持此功能