AngularJS password confirmation noMatch not working? - angularjs

Question

I have this script here:
angular.module('UserValidation', []).directive('validPasswordC', function () {
return {
require: 'ngModel',
link: function (scope, elm, attrs, ctrl) {
ctrl.$parsers.unshift(function (viewValue, $scope) {
var noMatch = viewValue != scope.signupForm.password.$viewValue
ctrl.$setValidity('noMatch', !noMatch)
})
}
}
});
And here's the html:
<div class="fieldset" ng-class="{'has-error':formData.password.$invalid && !formData.password.$pristine}">
<label>Password</label>
<input type="password" id="password" name="password" ng-model="formData.password" ng-minlength="8" ng-maxlength="20" ng-pattern="/(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z])/" placeholder="password" required />
<p ng-show="signupForm.password.$error.required" class="error">*</p>
<p ng-show="signupForm.password.$error.minlength" class="error">
Passwords must be between 8 and 20 characters.</p>
<p ng-show="signupForm.password.$error.pattern" class="error">
Must contain one lower & uppercase letter, and one non-alpha character (a number or a symbol.)</p>
</div>
<div class="fieldset" ng-class="{'has-error':formData.password_c.$invalid && !formData.password_c.$pristine}">
<label for="password_c">Confirm Password</label>
<input type="password" id="password_c" name="password_c" ng-model="formData.password_c" placeholder="confirm password" valid-password-c required />
<p ng-show="signupForm.password_c.$error.noMatch" class="error">Passwords do not match.</span>
<p ng-show="signupForm.password_c.$error.required" class="error">*</p>
</div>
The character validation for password is working, but the "noMatch" function for confirm password is not working.
What might be the problem? Thanks! :)

Answer 1

You need to pass your original password to directive as well/
Please see working demo below
var app = angular.module('app', []);
app.directive('validPasswordC', function() {
return {
require: 'ngModel',
scope: {
reference: '=validPasswordC'
},
link: function(scope, elm, attrs, ctrl) {
ctrl.$parsers.unshift(function(viewValue, $scope) {
var noMatch = viewValue != scope.reference
ctrl.$setValidity('noMatch', !noMatch);
return (noMatch)?noMatch:!noMatch;
});
scope.$watch("reference", function(value) {;
ctrl.$setValidity('noMatch', value === ctrl.$viewValue);
});
}
}
});
app.controller('homeCtrl', function($scope) {
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<div ng-controller="homeCtrl">
<p>Password:{{formData.password}}</p>
<form name="signupForm">
<div class="fieldset" ng-class="{'has-error':formData.password.$invalid && !formData.password.$pristine}">
<label>Password</label>
<input type="password" id="password" name="password" ng-model="formData.password" ng-minlength="8" ng-maxlength="20" ng-pattern="/(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z])/" placeholder="password" required />
<p ng-show="signupForm.password.$error.required" class="error">*</p>
<p ng-show="signupForm.password.$error.minlength" class="error">
Passwords must be between 8 and 20 characters.</p>
<p ng-show="signupForm.password.$error.pattern" class="error">
Must contain one lower & uppercase letter, and one non-alpha character (a number or a symbol.)</p>
</div>
<div class="fieldset" ng-class="{'has-error':formData.password_c.$invalid && !formData.password_c.$pristine}">
<label for="password_c">Confirm Password</label>
<input type="password" id="password_c" name="password_c" ng-model="formData.password_c" placeholder="confirm password" valid-password-c="formData.password" required />
<p ng-show="signupForm.password_c.$error.noMatch" class="error">Passwords do not match.</span>
<p ng-show="signupForm.password_c.$error.required" class="error">*</p>
</div>
</form>
</div>
</div>

Answer 2

The easiest is this one.But i don't know this is the good way of coding.
<input ng-model="password" name="user_password" type="password" ng-required="true" >
<input ng-model="confirmPassword" name="user_password" type="password" ng-required="true" >
<span ng-show="pasword !== confirmPassword">Password mismatch</span>

Answer 3

The following also will work to verify the confirm password.
<div ng-app="myapp" ng-controller="mainController as mnCtrl">
<form name="mnCtrl.useradd" ng-submit="mnCtrl.frmAdd()" novalidate role="form">
<input ng-model="mnCtrl.fields.password" name="user_password" type="password" ng-required="true" >
<input ng-model="mnCtrl.fields.cpassword" name="user_cpassword" type="password" ng-required="true" >
<div ng-show=" mnCtrl.useradd.user_cpassword.$viewValue != '' && (mnCtrl.useradd.user_password.$viewValue != mnCtrl.useradd.user_cpassword.$viewValue) ">Fields do not match!</div>
</form>
</div>