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AngularJS manual form validation_AngularJS

WBOYOriginal: 2016-05-16 15:16:481251browse

The so-called manual verification is to verify through the attributes of the AngularJS form, and to become an AngularJS form, two conditions must be met:

1. Add novalidate="novalidate" to the form element;

2. Add name="theForm" to the form element,

As follows:

<!DOCTYPE html>
<html lang="en" ng-app="myApp1">
<head>
 <meta charset="UTF-8">
 <title></title>
 <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.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 Submitting</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(theForm.$valid)" novalidate="novalidate" name="theForm">
 <div class="form-group">
  <label for="name">Name</label>
  <input type="text" class="form-control" id="name" ng-model="formModel.name"/>
 </div>

 <div class="form-group" ng-class="{
  'has-error': !theForm.email.$valid && (!theForm.$pristine || theForm.$submitted),
  'has-success': theForm.email.$valid && (!theForm.$pristine || theForm.$submitted)
  }">
  <label for="email">Email</label>
  <input type="email" class="form-control" id="email" ng-model="formModel.email" required="required" name="email"/>
  <p class="help-block" ng-show="theForm.email.$error.required && (!theForm.$pristine || theForm.$submitted)">必填</p>
  <p class="help-block" ng-show="theForm.email.$error.email && (!theForm.$pristine || theForm.$submitted)">email格式不正确</p>
 </div>

 <div class="form-group">
  <label for="username">Username</label>
  <input type="text" class="form-control" id="username" ng-model="formModel.username"/>
 </div>

 <div class="form-group">
  <label for="age">Age</label>
  <input type="number" class="form-control" id="age" ng-model="formModel.age"/>
 </div>

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

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

 <div class="form-group">
  <button class="btn btn-primary" type="submit">Register</button>
 </div>

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

● Adding novalidate="novalidate" to the form means that the form will no longer use the HTML5 validation feature
● Adding name="theForm" to the form means that the name of the form is theForm. How to use theForm, for example, we verify whether the form has been modified theForm.$submitted
● Submit the form via ng-submit
● formModel is an attribute in $scope
● Manually verified the email of the form, using many attributes of the AngularJS form, such as theForm.email.$valid, theForm.$pristine, theForm.$submitted, theForm.email.$ error.required, theForm.email.$error.email
● Print out all the attributes of the AngularJS form through e03b848252eb9375d56be284e690e873{{theForm | json}}bc5574f69a0cba105bc93bd3dc13c4ec

{
 "$error": {
 "required": [
  {
  "$validators": {},
  "$asyncValidators": {},
  "$parsers": [],
  "$formatters": [
   null
  ],
  "$viewChangeListeners": [],
  "$untouched": true,
  "$touched": false,
  "$pristine": true,
  "$dirty": false,
  "$valid": false,
  "$invalid": true,
  "$error": {
   "required": true
  },
  "$name": "email",
  "$options": null
  }
 ]
 },
 "$name": "theForm",
 "$dirty": false,
 "$pristine": true,
 "$valid": false,
 "$invalid": true,
 "$submitted": false,
 "email": {
 "$validators": {},
 "$asyncValidators": {},
 "$parsers": [],
 "$formatters": [
  null
 ],
 "$viewChangeListeners": [],
 "$untouched": true,
 "$touched": false,
 "$pristine": true,
 "$dirty": false,
 "$valid": false,
 "$invalid": true,
 "$error": {
  "required": true
 },
 "$name": "email",
 "$options": null
 },
 "sex": {
 "$validators": {},
 "$asyncValidators": {},
 "$parsers": [],
 "$formatters": [],
 "$viewChangeListeners": [],
 "$untouched": true,
 "$touched": false,
 "$pristine": true,
 "$dirty": false,
 "$valid": true,
 "$invalid": false,
 "$error": {},
 "$name": "sex",
 "$options": null
 }
}

Above, all inputs with name attributes are displayed above.

The module, controller and method of submitting the form are defined in the second.js file.

var myApp1 = angular.module('myApp1',[]);

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

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

  console.log($scope.formModel);
 };
});

The advantage of the above form verification method is that it is highly controllable, but it is relatively cumbersome.

The above is the entire content of this article. I hope I can become proficient in AngularJS manual form verification.

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