Passing data between modal and controller - angularjs

Question

How can I make data available in a controller? I have created a really simple Plunk that should show data on the $scope in a modal. I’ll then need to update the data, and only update $scope on clicking “ok”. Clicking “cancel” will discard the changes.
But before I get to that step, I need to make the scope available to the modal. Most of the examples use two controllers. Do I need another controller as in this example: Passing Data to Twitter Bootstrap Modal in Angular? In my controller I have the following:
$scope.open = function(){
var modalInstance = $uibModal.open({
templateUrl: 'modal.html',
controller: 'ModalInstanceController',
resolve: {
users: function() {
return $scope.users;
}
}
});
};
How can I display the users in the template? The plunk is here: http://plnkr.co/edit/FuXjSwtljQtFYOtFRV18?p=preview

Answer 1

To be able to access scope of the controller you need to pass scope object to the modal when creating an instance of it:
$scope.open = function() {
var modalinstance = $uibModal.open({
scope: $scope,
templateUrl: 'modal.html',
resolve: {
users: function() {
return $scope.users;
}
}
})
};
This way Angular will create child scope of the controller $scope so you will be able to access items inside of modals scope:
Demo: http://plnkr.co/edit/0m9oktX2JHFmeiaDfOpO?p=preview

Answer 2

You can access scope in modal -
$scope.open = function(){
var modalinstance = $uibModal.open({
templateUrl: 'modal.html',
scope:$scope
})
};

Answer 3

you can do it with just one controller, is just that is a "dirty" solution, because both html files will share the same controller, which is potentially an issue.
the problem you are facing is that in the modal you don't have a defined scope, so the foreach (ng-repeat) you are doing is not getting any elements
you can fix it easily by changing your modal.html to
<div ng-controller="modalController"><div class="modal-header">
<h3 class="modal-title">Modal</h3>
</div>
<div class="modal-body">
<p>Existing users:</p>
<ul>
<li ng-repeat="user in users">{{user}}</li>
</ul>
</div>
<div class="modal-footer">
<button class="btn btn-default" type="button">Close</button>
</div>
</div>
as you see, now this modal has a controller (the same as the main window) and so will have a scope
or else just pass the scope to the modal definition adding
var modalinstance = $uibModal.open({
scope: $scope,...
is dirty, and you are "polluting" the scope, but it works :)

Answer 4

Here is some code from my current project it works as expected if you want to use any ng-click on the modal your function has to reside in ModalInstanceController
app.controller('dashboardCtrl', function ($scope, $rootScope, $location, $http, Data, $uibModal ) {
$scope.users = '';
$scope.open = function(){
var modalInstance = $uibModal.open({
templateUrl: 'modal.html',
controller: 'ModalInstanceController',
resolve: {
users: function() {
return $scope.users;
}
}
})
}
});
app.controller('ModalInstanceController', function ($scope, $uibModal, $uibModalInstance, users, $rootScope, $http, Data) {
$scope.ok = function () {
$uibModalInstance.close($scope.selected.item);
}
$scope.cancel = function () {
$uibModalInstance.dismiss('cancel');
}
$scope.users = users ;
$scope.selected = {
users: $scope.users[0]
};
});