AngularJS automatic form validation
- 2020-12-13 18:50:41
- OfStack
Another form verification method of AngularJS is automatic verification, that is, through directive. In addition to directive, which comes with AngularJS, angular-ES6en-ES7en, the third side of module, is also needed.
About angular auto - validate:
To localize the error message, the third party, ES36en-ES37en, is also needed:
Installation: npm install ES42en-ES43en --save module dependent: var myApp = angular.module("app", ["localize"]); Reference:
<script src="../node_modules/angular-sanitize/angular-sanitize.min.js"></script>
<script src="../node_modules/angular-localize/angular-localize.min.js"></script>
In addition, when the form submission button is clicked, the button needs to be disabled and a waiting effect needs to be displayed. The third party, ES54en-ES55en, needs to be used:
Installation: bower install ES60en-ES61en --save module dependent: var myApp = ES66en.module ("app", [" ES69en-ES70en "]); Reference:
<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>
The page is as follows:
<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 Don't use forms html validation -->
<!--theForm become scope the 1 A field -->
<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"> Is the registered ...</span>
<span ng-show="!submitting"> registered </span>
</button>
</div>
<pre>
{{formModel | json}}
</pre>
</form>
</div>
<script src="../node_modules/angular/angular.min.js"></script>
<script src="form_validation_auto.js"></script>
<script src="../node_modules/angular-auto-validate/dist/jcs-auto-validate.min.js"></script>
<script src="../node_modules/angular-sanitize/angular-sanitize.min.js"></script>
<script src="../node_modules/angular-localize/angular-localize.min.js"></script>
<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>
</body>
</html>
First look at the submit button:
<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"> Is the registered ...</span>
<span ng-show="!submitting"> registered </span>
</button>
</div>
Take the Age field in the form:
<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>
Among them,min and max are directive of AgularJS, and ES100en-ES101en-ES102en-ES103en is directive of ES104en-ES105en-ES106en. The convention followed here is the directive name for ng-ES109en form validation -ES111en-ES112en. What do tooYoung and tooOld do and where do they use them?
It is used at the module level and is defined in the form_ES119en_auto.js file.
var myApp1 = angular.module('myApp1',['jcs-autoValidate','localize','angular-ladda']);
myApp1.run(function(defaultErrorMessageResolver){
defaultErrorMessageResolver.getErrorMessages().then(function(errorMessages){
errorMessages['tooYoung'] = ' Must be younger than {0}';
errorMessages['tooOld'] = ' Age must not be greater than {0}';
errorMessages['badUsername'] = ' User names can only contain numbers, letters, or underscores ';
});
});
myApp1.controller('myCtrl1', function($scope, $http){
$scope.formModel = {};
$scope.submitting = false;
$scope.onSubmit = function(){
$scope.submitting = true;
console.log(' Has been submitted ');
console.log($scope.formModel);
$http.post('url',$scope.formModel)
.success(function(data){
console.log(':)');
$scope.submitting = false;
})
.error(function(data){
console.log(':(');
$scope.submitting = false;
});
};
});
That's it for this article, so you want to be proficient with AngularJS manual form validation.