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AngularJS自動表單驗證_AngularJS

WBOY原創: 2016-05-16 15:16:441109瀏覽

AngularJS的另外一種表單驗證方式是自動驗證，即透過directive來實現，除了AngularJS自帶的directive,還需要用到angular-auto-validate這個第三方module。

有關angular-auto-validate：

安裝：npm i angular-auto-validate
引用：
module依賴：var myApp = angular.module("app", ["jcs-autoValidate"]);

為了實現錯誤訊息在地化，還需要angular-localize這個第三方module：

安裝：npm install angular-localize --save
module依賴：var myApp = angular.module("app", ["localize"]);
引用：

<script src="../node_modules/angular-sanitize/angular-sanitize.min.js"></script>
<script src="../node_modules/angular-localize/angular-localize.min.js"></script>

此外，當點擊提交表單按鈕，需要停用按鈕並顯示一種等待效果，需要用到angular-ladda這個第三方module:

安裝：bower install angular-ladda --save
module依賴：var myApp = angular.module("app", ["angular-ladda"]);
引用：

<link rel="stylesheet" href="../bower_components/ladda/dist/ladda-themeless.min.css"/>

<script src="../bower_components/ladda/dist/spin.min.js"></script>
<script src="../bower_components/ladda/dist/ladda.min.js"></script>
<script src="../bower_components/angular-ladda/dist/angular-ladda.min.js"></script>

頁如下：

<html>
<head>
 <meta charset="gb2312">
 <title></title>
 <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.min.css"/>
 <link rel="stylesheet" href="../bower_components/ladda/dist/ladda-themeless.min.css"/>
 <link rel="stylesheet" href="../css/main.css"/>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
 <div class="container">
 <div class="navbar-header">
  <a href="/" class="navbar-brand">Form Validating Auto</a>
 </div>
 </div>
</nav>

<div class="container main-content" ng-controller="myCtrl1">
 <!--novalidate让表单不要使用html验证-->
 <!--theForm变成scope的一个字段-->
 <form ng-submit="onSubmit()" novalidate="novalidate">
 <div class="form-group">
  <label for="name" class="control-label">Name</label>
  <input type="text" class="form-control" id="name" ng-model="formModel.name" required="required"/>
 </div>

 <div class="form-group">
  <label for="email" class="control-label">Email</label>
  <input type="email" class="form-control" id="email" ng-model="formModel.email" required="required"/>

 </div>

 <div class="form-group">
  <label for="username" class="control-label">Username</label>
  <input type="text"
    class="form-control"
    id="username"
    ng-model="formModel.username"
    required="required"
    ng-pattern="/^[A-Za-z0-9_]{1,32}$/"
    ng-minlength="7"
    ng-pattern-err-type="badUsername"
  />
 </div>

 <div class="form-group">
  <label for="age" class="control-label">Age</label>
  <input type="number"
    class="form-control"
    id="age"
    ng-model="formModel.age"
    required="required"
    min="18"
    max="65"
    ng-min-err-type="tooYoung"
    ng-max-err-type="tooOld"
  />
 </div>

 <div class="form-group">
  <label for="sex" class="control-label">Sex</label>
  <select name="sex" id="sex" class="form-control" ng-model="formModel.sex" required="required">
  <option value="">Please choose</option>
  <option value="male">Mail</option>
  <option value="femail">Femail</option>
  </select>
 </div>

 <div class="form-group">
  <label for="password" class="control-label">Password</label>
  <input type="text" class="form-control" id="password" ng-model="formModel.password" required="required" ng-minlength="6"/>
 </div>

 <div class="form-group">
  <!--<button class="btn btn-primary" ng-click="onSubmit()">Register</button>-->
  <button class="btn btn-primary"
    ladda = "submitting"
    data-style="expand-right"
    type="submit">
  <span ng-show="submitting">正在注册...</span>
  <span ng-show="!submitting">注册</span>
  </button>
 </div>

  <pre class="brush:php;toolbar:false">
  {{formModel | json}}

先看提交按鈕：

<div class="form-group">
 <!--<button class="btn btn-primary" ng-click="onSubmit()">Register</button>-->
 <button class="btn btn-primary"
   ladda = "submitting"
   data-style="expand-right"
   type="submit">
 <span ng-show="submitting">正在注册...</span>
 <span ng-show="!submitting">注册</span>
 </button>
</div>

ladda屬性值為bool值，true表示顯示動態等待效果，false不顯示動態等待效果，這裡的submitting是scope中的一個屬性
data-style="expand-right"表示在按鈕的右側顯示動態等待效果

再拿表單中的Age欄位來說：

<div class="form-group">
 <label for="age" class="control-label">Age</label>
 <input type="number"
   class="form-control"
   id="age"
   ng-model="formModel.age"
   required="required"
   min="18"
   max="65"
   ng-min-err-type="tooYoung"
   ng-max-err-type="tooOld"
 />
</div>

其中,min, max為AgularJS的directive,而ng-min-err-type是angular-auto-validate的directive。這裡遵循的慣例是ng-AngularJS表單驗證的directive名稱-err-type，而tooYoung和tooOld的作用是什麼，又是在哪裡用上了呢？

是在module層面用上了，定義在了form_validation_auto.js檔中。

var myApp1 = angular.module('myApp1',['jcs-autoValidate','localize','angular-ladda']);

myApp1.run(function(defaultErrorMessageResolver){
 defaultErrorMessageResolver.getErrorMessages().then(function(errorMessages){
  errorMessages['tooYoung'] = '年龄必须小于{0}';
  errorMessages['tooOld'] = '年龄不能大于{0}';
  errorMessages['badUsername'] = '用户名只能包含数字、字母或下划线';
 });
});

myApp1.controller('myCtrl1', function($scope, $http){
 $scope.formModel = {};
 $scope.submitting = false;

 $scope.onSubmit = function(){

  $scope.submitting = true;
  console.log('已提交');
  console.log($scope.formModel);

  $http.post('url',$scope.formModel)
   .success(function(data){
    console.log(':)');
    $scope.submitting = false;
   })
   .error(function(data){
    console.log(':(');
    $scope.submitting = false;
   });
 };
});

以上就是本文的全部內容，希望對AngularJS手動表單驗證能夠熟練操作。

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