Question

我正在努力在Angular中创建一个模型。该模型基本上是父子关系，如ul =＆gt;李的关系我已成功将父JSON数组绑定到$ scope.parents变量，并且我可以对父变量进行重复操作。但是，当我从承诺的结果中将子项添加到$ scope.parents.children时，我在视图中什么也得不到。

我的控制器代码如下：
departmentModule.controller("departmentController", function ($scope, departmentService) { $scope.parents = []; $scope.tempArr = [];

//Load initial root/parent structure
departmentService.getParents(getSelectedEventId()).then(function (result) {
    $scope.parents = result;
    $scope.bindChildNodes()
});

//loop through  parent structure and get child nodes 1 level deep for initial load
$scope.bindChildNodes = function () {
    for (var i = 0; i < $scope.parents.length; i++) {
        var assignmentId = $scope.parents[i].ID;
        $scope.parents[i].children = [];
        departmentService.getChildren(getSelectedEventId(), assignmentId).then(function (result) {
            //i would send result to children here, but this function doesnt have access to the i var to know what parent the children belong too..
            $scope.tempArr = result;
        });
        $scope.parents[i].children = $scope.tempArr;
    }
}
});

当我将$ scope.tempArr分配给其父级的children属性时：$ scope.parents [i] .children它以某种方式丢失了它的值 - 所以$ scope.parents [0] .children的console.log是一个空数组。有这个想法或帮助吗？为什么我不能将JSON对象分配给范围变量的子属性？ Simple Plunkr simulation is here 非常感谢提前。

将JSON数据绑定到angular中的绑定范围变量的属性

0 个答案: