ng-model is undefined in controller

Question

I\'m using ionic and I have the following view:

Answer 1

Please check this code This is worked for me:

<div class="row row-center">
  <div class="col">

    <div id="logo"></div>

    <form>
      <div class="list">
        <label class="item item-input">
          <input type="text" placeholder="Membership No" ng-model="data.membershipNo">
        </label>
        <label class="item item-input">
          <input type="password" placeholder="Password" ng-model="data.password">
        </label>
      </div>

      <button class="button button-block button-positive button-login" ng-click="login()">
        Login
      </button>
    </form>

  </div>
</div>

and in your-controller:

app.controller('loginController', ['$scope',
  function($scope) {
    $scope.data={};
  $scope.login = function () {
    console.log("User logged in with membership no: " + $scope.data.membershipNo +
    "\n and password: " + $scope.data.password);
  }

}]);

Answer 2

I had exact the same issue recently and that's probably a solution: https://stackoverflow.com/a/22768720/552936

Modified quote:

"If you use ng-model, you have to have a dot in there."
Make your model point to an object.property and you'll be good to go.

Controller

$scope.formData = {};
$scope.login = function () {
  console.log("User logged in with membership no: " + $scope.formData.membershipNo +
  "\n and password: " + $scope.formData.password);
 }

Template

<input type="text" placeholder="Membership No" ng-model="formData.membershipNo">
<input type="password" placeholder="Password" ng-model="formData.password">

Answer 3

$scope.user = {};
$scope.submitForm = function (isValid) {
   if (($scope.user.name || '').length > 0){ //Code }
}

Answer 4

Hey Jean,Have a look of it your code is working here

       <ion-view ng-app="app" hide-nav-bar="true" ng-controller="loginController" class="login-view">
      <ion-content class="padding">

        <div class="row row-center">
          <div class="col">

            <div id="logo"></div>

            <form>
              <div class="list">
                <label class="item item-input">
                  <input type="text" placeholder="Membership No" ng-model="membershipNo">
                </label>
                <label class="item item-input">
                  <input type="password" placeholder="Password" ng-model="password">
                </label>
              </div>

              <button class="button button-block button-positive button-login" ng-click="login()">
                Login
              </button>
            </form>

          </div>
        </div>

      </ion-content>
    </ion-view> 


var app= angular.module("app",[]);
    app.controller('loginController', ['$scope', 
      function($scope, $localstorage) {

      $scope.membershipNo;
      $scope.password;
      $scope.login = function () {
        alert("User logged in with membership no: " + ($scope.membershipNo || '') +
        "\n and password: " + ($scope.password || ''));
      }

    }]);

Answer 5

You need to define your $scope variables like this in your controller:

$scope.membershipNo = '';
$scope.password = '';

So your controller would look like:

app.controller('loginController', ['$scope', '$localstorage',
  function($scope, $localstorage) {

  $scope.membershipNo = '';
  $scope.password = '';
  $scope.login = function () {
    console.log("User logged in with membership no: " + $scope.membershipNo +
    "\n and password: " + $scope.password);
  }

}]);