ng-Table在重新加载请求时不呈现新数据

时间:2014-10-05 17:54:41

标签: angularjs ngtable

我的页面有ng-table,可以正常使用初始数据。我有一个选择框,根据选择的选项发送服务器请求,然后我将新数据转换为角度,但不使用ng-table更新。

以下是我的观点:

<section data-ng-controller="ReportsController">
<div class="plain-box">
    <table ng-table="tableParams" show-filter="true" class="table table-striped">
        <thead>
        <tr>
            <th ng-repeat="column in columns" ng-show="column.visible"
                class="text-center sortable" ng-class="{
                    'sort-asc': tableParams.isSortBy(column.field, 'asc'),
                    'sort-desc': tableParams.isSortBy(column.field, 'desc')
                  }"
                ng-click="tableParams.sorting(column.field, tableParams.isSortBy(column.field, 'asc') ? 'desc' : 'asc')">
                {{column.title}}
            </th>
        </tr>
        </thead>
        <tbody>
        <tr ng-repeat="user in $data">
            <td ng-repeat="column in columns" sortable="column.field">
                {{user[column.field]}}
            </td>
        </tr>
        </tbody>
    </table>
</div>

我的控制器:

angular.module('reports').controller('ReportsController', ['$scope', '$stateParams', '$location', 'Authentication', 'Reports', '$filter', 'ngTableParams',
function($scope, $stateParams, $location, Authentication, Reports, $filter, ngTableParams ) {
    $scope.reportBillingPeriod = 0;
    $scope.$watch('reportBillingPeriod', function(newValue, oldValue) {
        $scope.findReportData( newValue );
    });
    //$scope.reportBillingData = 0;


    $scope.findReportData = function( selectedMonth ){
        var selectedPeriod = selectedMonth;
        if( selectedPeriod === null )
        selectedPeriod = '0';
        $scope.customers_report = Reports.customer_report({
        monthReport: selectedPeriod
        }, function( result ){
        var data = result.customers;
        $scope.columns = [
            { title: 'Account Name', field: 'accountName', visible: true, filter: { 'name': 'text' } },
            { title: 'Gross Revenue', field: 'planTotalAmount', visible: true }
        ];

   $scope.$watch('result', function () {
        $scope.tableParams.settings().$scope = $scope;
        $scope.tableParams.reload(); 
    });

        $scope.tableParams = new ngTableParams({
            page: 1,            // show first page
            count: 10,          // count per page
            filter: {
            name: 'O'       // initial filter
            }
        }, {
            total: data.length, // length of data
            getData: function($defer, params) {
            var orderedData = params.sorting() ? $filter('orderBy')(data, params.orderBy()) : data;
            $defer.resolve(orderedData.slice((params.page() - 1) * params.count(), params.page() * params.count()));
            //$scope.reportBillingData = new Date();
            }
        });
        });
    };
}]);

1 个答案:

答案 0 :(得分:6)

$scope.$watch('result', function () {
        $scope.tableParams.settings().$scope = $scope; <<--nested scope is replacing!!
        $scope.tableParams.reload(); 
    });

ngTable 指令创建嵌套范围,该范围包含指令的所有设置,因此您不应该使用ReportsController的范围替换它 你需要删除这一行 $scope.tableParams.settings().$scope = $scope;
你需要指定 ngTable 的所有参数,请看一下 这里In ngTables, running $scope.tableParams.reload() for the third time results in TypeError: Cannot set property '$data' of null

<强>更新 并且最好采取ngTableParams初始化和$ watch for findReportData函数之外的结果,以防止错误和不必要的重新初始化

更新2 我设置plunk,尝试让它看起来更像原始问题,并模拟httpservice, 但这没关系,所有数据访问都必须进入$scope.tableParams.settings().$scope = $scope; getData func内部,并且设置所有需要调用的过滤器(或者可能只是使用插件中的ngTableParams)要调用$watch,您可以尝试在上面的输入中键入一些数字,数据将更新而不会出现问题。为清楚起见,删除了与排序,分页和过滤相关的所有代码, 所以$scope.tableParams.reload();如下所示:

getData

并观察过滤器更改,如下所示:

 getData: function($defer, params) {
        var selectedPeriod = $scope.reportBillingPeriod ; //selectedMonth;
         if( selectedPeriod === null )
    selectedPeriod = '0';
    $scope.customers_report = Reports.get({   //Reports.customer_report({
    monthReport: selectedPeriod
    }, function(result ){
    var data = result.customers;
     $scope.tableParams.total(data.length);


    var orderedData = params.sorting() ? $filter('orderBy')(data, params.orderBy()) : data;
        $defer.resolve(orderedData.slice((params.page() - 1) * params.count(), params.page() * params.count()));

    });      

        }

更新3
删除了重复的调用 $scope.reportBillingPeriod = 0; $scope.$watch('reportBillingPeriod', function(newValue, oldValue) { $scope.tableParams.reload(); }); func,已编辑here 该问题存放在getData $watch变量中,因此为了防止第二次数据上传,我们必须检查值的更改方式,例如此处

reportBillingPeriod