我一直在研究Aurelia-Validation示例,我有以下内容:
的index.html
<!doctype html>
<html>
<head>
<title>Aurelia</title>
<link rel="stylesheet"href="styles/styles.css">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body aurelia-app="main">
<script src="jspm_packages/system.js"></script>
<script src="config.js"></script>
<script>
System.import('aurelia-bootstrapper');
</script>
</body>
</html>
welcome.js
import {Validation} from 'aurelia-validation';
export class Welcome{
static inject() { return [Validation]; }
constructor(validation) {
this.heading = 'Welcome to the Aurelia Navigation App!';
this.firstName = 'John';
this.lastName = 'Doe';
this.validation = validation.on(this)
.ensure('firstName')
.isNotEmpty()
.hasMinLength(3)
.hasMaxLength(10)
.ensure('lastName')
.isNotEmpty()
.hasMinLength(3)
.hasMaxLength(10);
}
get fullName() {
return `${this.firstName} ${this.lastName}`;
}
welcome() {
this.validation.validate()//validate will fulfill when validation is valid and reject if not
.then( () => {
alert(`Welcome, ${this.fullName}!`);
})
.catch(() => {
console.log("validation error");
});
}
}
welcome.html
<template>
<require from="bootstrap/css/bootstrap.css"></require>
<require from="font-awesome/css/font-awesome.css"></require>
<section style="padding-top:2%;">
<h2 class="text-center">${heading}</h2>
<form role="form" submit.delegate="welcome()" validate.bind="validation"class="form-horizontal">
<div class="form-group">
<label class="control-label col-sm-2" for="firstName">First Name:</label>
<p style="help-block aurelia-validation-message"></p>
<div class="col-sm-10">
<input id="firstName" type="text" value.bind="firstName" class="form-control">
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="lastName">Last Name:</label>
<div class="col-sm-10">
<input id="lastName" type="text" value.bind="lastName" class="form-control">
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2">Full Name:</label>
<div class="col-sm-10">
<p>${fullName}</p>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-default">Submit</button>
</div>
</div>
<hr class="half-rule">
</form>
</section>
</template>
main.js
import{ValidateCustomAttributeViewStrategy} from 'aurelia-validation';
export function configure(aurelia) {
aurelia.use
.standardConfiguration()
.developmentLogging()
.plugin('aurelia-validation', (config) =>
{config.useViewStrategy(ValidateCustomAttributeViewStrategy.TWBootstrapAppendToInput);}); //Add this line to load the plugin
aurelia.start().then(a => a.setRoot('app', document.body));
}
现在我认为添加ValidateCustomAttributeViewStrategy会自动在相关输入字段上填充错误消息,但它似乎没有做任何事情。相反,每当我点击提交时,我都会在浏览器控制台Unhandled promise rejection > ValidationResult
中收到2个错误。这些是否相关?另外,我是否需要在每个输入中添加p元素以便填充消息或者是否应该自动完成消息?
jspm install aurelia-validation
并成功安装。它也出现在我的config.js中。它位于jspm_packages/npm/aurelia-validation@0.6.0中。它似乎仍无法正常工作
答案 0 :(得分:4)
我通过aurelia验证来源挖了一下,发现ValidateCustomAttributeViewStrategy.TWBootstrapAppendToInput
中唯一提到的是Intro documentation。此类及其静态成员似乎已重命名。您可以使用的新静态成员是TWBootstrapViewStrategy.AppendToInput
。它可以在TWBootstrapViewStrategyBase
source code中找到。
有一个pull request,它应该合并到主分支,但是Intro.md仍然包含旧的配置。
P.S。您不需要添加p元素。这将自动处理。
P.P.S。您还need to have .catch
在调用validation.validate()
时处理所有失败的验证。这样可以防止你在控制台中遇到的错误。