Question

在我的代码中我有一个表格，我想用我点击的行填写表格。表：

<table class="table table-striped">
<thead>
<tr>
    <th>#</th>
    <th>project</th>
    <th>start</th>
    <th>end</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="booking in myBookingsList" ng-click="bookingClicked(booking)">
    <td>{{$index + 1}}</td>
    <td>{{booking.usersProjects.project.name}}</td>
    <td>{{booking.start | date:'yyyy-MM-dd HH:mm:ss' }}</td>
    <td>{{booking.end | date:'yyyy-MM-dd HH:mm:ss' }}</td>
</tr>
</tbody>

这是ng-click的功能：

$scope.bookingClicked = function(booking){
    $scope.newBooking = {};
    $scope.newBooking.project = booking.usersProjects.project.name;
    $scope.newBooking.id = booking.id;
    $scope.newBooking.startDate = $filter('date')(booking.start, "yyyy-MM-dd");
    $scope.newBooking.startTime = new Date(booking.start);
    $scope.newBooking.endDate = $filter('date')(booking.end, "yyyy-MM-dd");
    $scope.newBooking.endTime = new Date(booking.end);
};

问题是我得到的第二行

TypeError: Cannot read property 'project' of undefined

那么这里有什么问题？应用程序的另一部分从中获取数据并提交它。这工作正常，我有

$scope.newBooking = {};
//timepicker values must be initialized
$scope.newBooking.startTime = new Date();
$scope.newBooking.endTime = new Date();

以下是预订对象的示例：

{
    "id": 50,
    "self": "http://localhost:8080/timetracker-backend/timetracker/booking/50",
    "start": 1434103331000,
    "end": 1434110531000,
    "usersProjects": {
        "id": 43,
        "self": "http://localhost:8080/timetracker-backend/timetracker/usersprojects/43",
        "user": {
            "id": 1,
            "self": "http://localhost:8080/timetracker-backend/timetracker/user/1",
            "name": "timetrackerAdmin",
            "role": "ADMIN"
        },
        "project": {
            "id": 42,
            "self": "http://localhost:8080/timetracker-backend/timetracker/project/42",
            "name": "project four",
            "description": "description p4"
        }
    }
}

这看起来与我类似？

Answer 1

$ scope.newBooking = {};

没有对象名称项目因此显示控制台错误，您在答案中创建了一个空对象

 $scope.newBooking.project = {};

意味着

$scope.newBooking= {
project : {} 
}

你的行如上代码所示，现在$ scope.newBooking已经或知道项目对象以上，所以，它工作正常

Answer 2

无意中我找到了解决方案。如果我添加$scope.newBooking.project = {};

，它会工作

所以功能现在是

$scope.bookingClicked = function(booking){
    $scope.newBooking = {};
    $scope.newBooking.project = {};
    $scope.newBooking.project = booking.usersProjects.project.name;
    $scope.newBooking.id = booking.id;
    $scope.newBooking.startDate = $filter('date')(booking.start, "yyyy-MM-dd");
    $scope.newBooking.startTime = new Date(booking.start);
    $scope.newBooking.endDate = $filter('date')(booking.end, "yyyy-MM-dd");
    $scope.newBooking.endTime = new Date(booking.end);
};

但是，无论谁能告诉我为什么这只是使用这个额外的行将被接受。

范围变量错误：无法读取未定义的属性....

2 个答案: