AngularJS:列出所有表单错误 [英] AngularJS: list all form errors

问题描述

背景:我目前正在开发一个带有标签的应用程序；我想列出验证失败的字段/部分，以指导用户在正确的选项卡中查找错误.

所以我尝试利用 form.$error 来做到这一点；但我还没有完全让它工作.

如果验证错误发生在 ng-repeat 中，例如:

<input name="inumber" required ng-model="url"/><br/>

空值导致 form.$error 包含以下内容:

<预>{ 必需的": [{编号":{}},{编号":{}}] }

另一方面，如果验证错误发生在这个ng-repeat之外:

form.$error 对象包含以下内容:

{ "required": [ {} ] }

但是，我希望以下内容:

{ "required": [ {'iname': {} } ] }

关于为什么缺少元素名称的任何想法?

可以在此处找到正在运行的 plunkr:http://plnkr.co/x6wQMp

解决方案

正如 @c0bra 在评论中指出的form.$error 对象被填充，它只是不喜欢被转储为 JSON.

循环遍历 form.$errors 和它的嵌套对象会得到想要的结果.

<li ng-repeat="(key, errors) in form.$error track by $index"><strong>{{key }}</strong>错误<ul><li ng-repeat="e in errors">{{ e.$name }} 有错误:<strong>{{ key }}</strong>.</li>

所有功劳都归功于 c0bra.

另一种选择是使用 这个问题 为动态创建的输入分配唯一名称.

Background: I am currently working on an application with tabs; and I'd like to list the fields / sections that fail validation, to direct the user to look for errors in the right tab.

So I tried to leverage form.$error to do so; yet I don't fully get it working.

If validation errors occur inside a ng-repeat, e.g.:

<div ng-repeat="url in urls" ng-form="form">
  <input name="inumber" required ng-model="url" />
  <br />
</div>

Empty values result in form.$error containing the following:

{ "required": [
  {
    "inumber": {}
  },
  {
    "inumber": {}
  }
] }

On the other hand, if validation errors occur outside this ng-repeat:

<input ng-model="name" name="iname" required="true" />

The form.$error object contains the following:

{ "required": [ {} ] }

yet, I'd expect the following:

{ "required": [ {'iname': {} } ] }

Any ideas on why the name of the element is missing?

A running plunkr can be found here: http://plnkr.co/x6wQMp

解决方案

As @c0bra pointed out in the comments the form.$error object is populated, it just doesn't like being dumped out as JSON.

Looping through form.$errors and it's nested objects will get the desired result however.

<ul>
  <li ng-repeat="(key, errors) in form.$error track by $index"> <strong>{{ key }}</strong> errors
    <ul>
      <li ng-repeat="e in errors">{{ e.$name }} has an error: <strong>{{ key }}</strong>.</li>
    </ul>
  </li>
</ul>

All the credit goes to c0bra on this.

Another option is to use one of the solutions from this question to assign unique names to the dynamically created inputs.

这篇关于AngularJS:列出所有表单错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！