Question

我有一个特殊的场景，即使在模态窗口打开后我的数据也会更新。我应该通过在模态弹出窗口中添加一个新项目来刷新模态弹出窗口上的数据。这是plunker，我试图传递$rootScope，但是从文档中，我意识到传递的默认范围是$rootScope。我的plunker链接是 https://plnkr.co/edit/hnMGHfsxPfq8BRCtVxqJ

我正在使用angular ui bootstrap并使用$uibModal 请建议我可以尝试的解决方案。在我的plunker代码中，即使$ item被更新，我的模态也不会被刷新。

<!doctype html>
<html ng-app="ui.bootstrap.demo">
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.6.1/angular.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.6.1/angular-animate.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.6.1/angular-sanitize.js"></script>
    <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-2.5.0.js"></script>
    <script src="example.js"></script>
    <link href="//netdna.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
  </head>
  <body>
<div ng-controller="ModalDemoCtrl as $ctrl" class="modal-demo">
    <script type="text/ng-template" id="myModalContent.html">
        <div class="modal-header">
            <h3 class="modal-title" id="modal-title">I'm a modal!</h3>
        </div>
        <div class="modal-body" id="modal-body">
            <ul>
                <li ng-repeat="item in $ctrl.items">
                    <a href="#" ng-click="$event.preventDefault(); $ctrl.selected.item = item">{{ item }}</a>
                </li>
            </ul>
            Selected: <b>{{ $ctrl.selected.item }}</b>
        </div>
        <div class="modal-footer">
            <button class="btn btn-primary" type="button" ng-click="$ctrl.ok()">OK</button>
            <button class="btn btn-warning" type="button" ng-click="$ctrl.cancel()">Cancel</button>
        </div>
    </script>
    <script type="text/ng-template" id="stackedModal.html">
        <div class="modal-header">
            <h3 class="modal-title" id="modal-title-{{name}}">The {{name}} modal!</h3>
        </div>
        <div class="modal-body" id="modal-body-{{name}}">
            Having multiple modals open at once is probably bad UX but it's technically possible.
        </div>
    </script>

    <button type="button" class="btn btn-default" ng-click="$ctrl.open()">Open me!</button>
     <button type="button" class="btn btn-default" ng-click="$ctrl.additems()">Add Item</button>
  {{ $ctrl.items}}
  <div class="modal-parent">
    </div>
</div>
  </body>
</html>
    angular.module('ui.bootstrap.demo', ['ngAnimate', 'ngSanitize', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('ModalDemoCtrl', function ($uibModal, $log, $document) {
  var $ctrl = this;
  $ctrl.items = ['item1', 'item2', 'item3'];

  $ctrl.animationsEnabled = true;
  $ctrl.additems = function (){
    $ctrl.items.push("item"+($ctrl.items.length+1));

  };
  $ctrl.open = function (size, parentSelector) {
    var parentElem = parentSelector ? 
      angular.element($document[0].querySelector('.modal-demo ' + parentSelector)) : undefined;
    var modalInstance = $uibModal.open({
      animation: $ctrl.animationsEnabled,
      ariaLabelledBy: 'modal-title',
      ariaDescribedBy: 'modal-body',
      templateUrl: 'myModalContent.html',
      controller: 'ModalInstanceCtrl',
      controllerAs: '$ctrl',
      size: size,
      appendTo: parentElem,
      resolve: {
        items: function () {
          return $ctrl.items;
        }
      }
    });
    setTimeout(function () {

           $ctrl.items.push("item"+($ctrl.items.length+1));
        }, 1000);

    modalInstance.result.then(function (selectedItem) {
      $ctrl.selected = selectedItem;
    }, function () {
      $log.info('Modal dismissed at: ' + new Date());
    });
  };



  $ctrl.toggleAnimation = function () {
    $ctrl.animationsEnabled = !$ctrl.animationsEnabled;
  };
});

// Please note that $uibModalInstance represents a modal window (instance) dependency.
// It is not the same as the $uibModal service used above.

angular.module('ui.bootstrap.demo').controller('ModalInstanceCtrl', function ($uibModalInstance, items) {
  var $ctrl = this;
  $ctrl.items = items;
  $ctrl.selected = {
    item: $ctrl.items[0]
  };

  $ctrl.ok = function () {
    $uibModalInstance.close($ctrl.selected.item);
  };

  $ctrl.cancel = function () {
    $uibModalInstance.dismiss('cancel');
  };
});

我的问题具体在这里，Modal已经传递了项目。 ctrl.items会在1秒后更新，但不会更新传递项目的模式窗口。有没有办法可以将 $ ctrl.items 的更新发送到模态窗口

setTimeout(function () {
                     $ctrl.items.push("item"+($ctrl.items.length+1));
        }, 1000);

Answer 1

你的问题不是很清楚。从你的plunkr我看到模态数据在原始数据被修改时得到更新。所以，假设这是你的问题：Javascripts对象是通过引用复制的。因此，为了避免这种情况，您需要创建对象的新副本。像这样：

items: function () {
          return angular.copy($ctrl.items);
        }

更新了plunkr：https://plnkr.co/edit/pHDr0B0jWRBGeNSPu0t7?p=preview

angularjs $ uimodal需要更新

1 个答案: