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I want to create a password / email confirmation directive in AngularJS, but all the ones I've seen so far rely on a lot of DOM poking or pulling in jQuery. I'd like to rely only on $scope properties if I can. What's the best way to do that?
398
After looking at the numerous helpful ways to implement this kind of directive, I figured out how to do it without DOM manipulation or using jQuery. Here's a Plunk that shows how.
It involves using:
I hope this is useful to some. Here's the gist:
var app = angular.module('app', [], function() {} );
app.directive('match', function($parse) {
return {
require: 'ngModel',
link: function(scope, elem, attrs, ctrl) {
scope.$watch(function() {
return $parse(attrs.match)(scope) === ctrl.$modelValue;
}, function(currentValue) {
ctrl.$setValidity('mismatch', currentValue);
});
}
};
});
app.controller('FormController', function ($scope) {
$scope.fields = {
email: '',
emailConfirm: ''
};
$scope.submit = function() {
alert("Submit!");
};
});
Then, in HTML:
<!DOCTYPE html>
<html ng-app="app">
<head lang="en">
<meta charset="utf-8">
<title>Custom Plunker</title>
<link rel="stylesheet" href="style.css">
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script>
<script src="app.js"></script>
</head>
<body ng-controller="FormController">
<form name='appForm' ng-submit='submit()'>
<div class="control-group">
<label class="control-label required" for="email">Email</label>
<div class="controls">
<input id="email" name="email" ng-model="fields.email"
class="input-xlarge" required="true" type="text" />
<p class="help-block">[email protected]</p>
</div>
</div>
<div class="control-group">
<label class="control-label required" for="emailConfirm">Confirm Email</label>
<div class="controls">
<input name="emailConfirm" ng-model="fields.emailConfirm"
class="input-xlarge" required="true"
type="text" match="fields.email" />
<div ng-show="appForm.emailConfirm.$error.mismatch">
<span class="msg-error">Email and Confirm Email must match.</span>
</div>
</div>
</div>
<button ng-disabled='appForm.$invalid'>Submit</button>
</form>
</body>
</html>
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