Firebase createAuth credentials aren't working with ng-model scope variables - angularjs

Question

I'm using AngularFire in an Ionic project for the first time. I followed the example in the docs on the firebase website for Auth with email and password.For some reason my $scope values from ng-model aren't binding properly.
angular.module('starter')
.controller('RegisterController', ['Auth', '$scope', function(Auth, $scope) {
$scope.createUser = function() {
$scope.message = null;
$scope.error = null;
Auth.$createUser({
email: $scope.email,
password: $scope.password
})
.then(function(userData) {
$scope.message = "User created: ";
})
.catch(function(error) {
$scope.error = error;
});
};
}]);
If I replace the $scope.email and $scope.password` with a hardcoded email and password it works. Here is the template with the email and password model data.
<ion-view view-title='Register A New Account' hide-back-button="false">
<ion-content class='padding'>
<div class="list list-inset">
<label class='item item-input'>
<span class='input-label'>Email</span>
<input type="text" placeholder='example#email.com' ng-model="email">
</label>
<label class='item item-input'>
<span class='input-label'>Password</span>
<input type="password" placeholder='' ng-model='password'>
</label>
<label class='item item-input'>
<span class='input-label'>Cell Phone</span>
<input type="tel" placeholder='316-333-3333'>
</label>
<label class='item item-input'>
<span class='input-label'>Date of Birth</span>
<input type="date">
</label>
<label class='item item-input'>
<span class='input-label'>City</span>
<input type="number" placeholder='Wichita'>
</label>
<label class='item item-input'>
<span class='input-label'>State</span>
<input type="number" placeholder='Kansas'>
</label>
<label class='item item-input'>
<span class='input-label'>Zipcode</span>
<input type="number" placeholder='67208'>
</label>
</div>
<ion-checkbox>
I agree to terms and conditions
</ion-checkbox>
<button class='button button-block button-calm' ng-click='createUser()'>Login</button>
<p ng-if='message'>Message: {{message}}</p>
<p ng-if='error'>Error: {{error}}</p>
</ion-content>
</ion-view>
Is my $scope value set wrong or is there something about the createAuth method that I am missing?

Answer 1

If anyone else runs into this problem it was a simple fix! I just had to make my $scope variables for email and password into a user object to access them using user.email. This state had a child scope that was conflicting.