ng-Table在重新加载请求时未呈现新数据
我有ng-table的页面,可以很好地处理初始数据。我有一个选择框,该框根据选择的选项发送服务器请求,然后Iam将新数据获取为angular,但未使用ng-
table更新。
这是我的看法:
<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();
}
});
});
};
}]);
回答:
$scope.$watch(‘result’, function () {
$scope.tableParams.settings().$scope = $scope; <<–nested scope is replacing!!
$scope.tableParams.reload();
});
ngTable 指令会建立巢状范围,其中包含所有指令的设定才能运作,因此您不应该将它替换为ReportsController的范围,而 需要移除此列, $scope.tableParams.settings().$scope = $scope;
并且需要为 ngTable 指定所有参数,请在此处查看ngTables$scope.tableParams.reload()第三次导致TypeError:无法将属性’$data’设置为null-reload-for-the-third-time-results-in-t/26174211#26174211)
以及最好将ngTableParams初始化和$watch用作findReportData函数之外的结果,以防止错误和不必要的重新初始化
我设置了plunk,尝试使其看起来更像原始问题,并模拟httpservice,但这不是重要的是,所有数据访问都必须在getData
func
里面,ngTableParams
并且在设置所有需要调用的过滤器时(或者可能只是$watch
像在plunk中那样使用),您必须调用$scope.tableParams.reload();
,您可以尝试在上面的输入中键入一些数字,数据将会更新没问题。为清晰起见,删除了与排序,固定和过滤相关的所有代码,因此getData
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()));
});
}
并查看过滤器更改,如下所示:
$scope.reportBillingPeriod = 0; $scope.$watch('reportBillingPeriod', function(newValue, oldValue) {
$scope.tableParams.reload();
});
删除了调用getData
func的重复项,在此进行
了修改,将问题放在$watch
了reportBillingPeriod
变量中,因此,为了防止第二次上传数据,我们必须检查值的更改方式,例如此处
$scope.reportBillingPeriod = defaultValue; $scope.$watch('reportBillingPeriod', function(newValue, oldValue) {
//this how we prevent second call
if (newValue!=oldValue)
$scope.tableParams.reload();
});
以上是 ng-Table在重新加载请求时未呈现新数据 的全部内容, 来源链接: utcz.com/qa/397789.html