Form input is undefined - angularjs

Question

Why the name and password are undefined?
I've used ng-model on them...
<form class="login" name="form">
<div class="form-group" ng-class="{'has-error': isInvalidLogin}">
<label for="name">Name: </label>
<input type="text" ng-model="name" id="name" class="form-control" placeholder="Nitzan">
</div>
<div class="form-group" ng-class="{'has-error': isInvalidLogin}">
<label for="password">Password: </label>
<input type="password" ng-model="password" id="password" class="form-control" placeholder="1234">
<p class="help-block" ng-if="isInvalidLogin">Name or password are wrong!</p>
</div>
<button type="submit" class="btn btn-block btn-lg btn-success login-btn" ng-click="login()">Login</button>
</form>
In the controller:
$scope.login = function () {
usersService.get($scope.name, $scope.password).then(function success(result){
$scope.currentUser = result;
}, function error() {
$scope.isInvalidLogin = true;
});
};
See the plunker:
http://plnkr.co/edit/QD3vtil3w9pd4d1TGl9v?p=preview

Answer 1

Your problem is because of ng-if directive which is creating child scope from current scope. Hence $scope.name & $scope.password is undefined inside $scope.login function.
I'd suggest you do create one object for user which is initially blank like user={} or you can do this on html using ng-init, then put it inside of mainController so that it can directly access by the parent without doing $parent. notation.
And place name and password inside user object.
HTML
<div ng-init="user={}">
<div class="container login-div" ng-if="!currentUser">
<form class="login" name="form" ng-submit="login()">
<div class="form-group" ng-class="{'has-error': isInvalidLogin}">
<label for="name">Name:</label>
<input type="text" ng-model="user.name" id="name" class="form-control" placeholder="Nitzan">
</div>
<div class="form-group" ng-class="{'has-error': isInvalidLogin}">
<label for="password">Password:</label>
<input type="password" name="test" ng-model="user.password" id="password" class="form-control" placeholder="1234">
<p class="help-block" ng-if="isInvalidLogin">Name or password are wrong!</p>
</div>
<button type="submit" class="btn btn-block btn-lg btn-success login-btn">Login</button>
</form>
</div>
</div>
CODE
$scope.login = function () {
alert("Name "+ $scope.user.name +"& password is " +$scope.user.password)
//usersService.get($scope.name, $scope.password).then(function success(result){
// $scope.currentUser = result;
//}, function error() {
// $scope.isInvalidLogin = true;
//});
};
Working Plunkr here.
Update
Otherwise you need to add change your ng-model to refer this scope to parent scope like
HTML
For name ng-model="$parent.name"
For password ng-model="$parent.password"
CODE
$scope.login = function () {
alert("Name "+ $scope.name +"& password is " +$scope.password)
//usersService.get($scope.name, $scope.password).then(function success(result){
// $scope.currentUser = result;
//}, function error() {
// $scope.isInvalidLogin = true;
//});
};
Plunkr Here
Hope this could help you. Thanks.