我是AngularJS的新手,在使用来自服务的ng-Table时,他一直在显示数据。我收到了错误
TypeError:无法调用未定义的方法'slice' at Object。$ scope.tableParams.ngTableParams.getData(index.html:122:32)
当我对json数据值进行硬编码时,它的工作正常。我认为来自工厂的数据不仅仅包含json数据结果,因此切片存在问题。
我的控制器看起来像这样:
myApp.controller('usersCtrl', function usersCtrl($scope, userData, $filter, ngTableParams, $log){
userData.getUsers(function(users){
$scope.users = users;
})
var users = $scope.users;
$scope.$watch("filter.$", function () {
$scope.tableParams.reload();
});
$scope.tableParams = new ngTableParams({
page: 1, // show first page
count: 10, // count per page
sorting: {
name: 'asc' // initial sorting
}
}, {
getData: function($defer, params) {
var filteredData = $filter('filter')(users, $scope.filter);
var orderedData = params.sorting() ?
$filter('orderBy')(filteredData, params.orderBy()) :
filteredData;
$defer.resolve(orderedData.slice((params.page() - 1) * params.count(), params.page() * params.count()));
},
$scope: $scope
});
});
然后我的工厂服务是:
myApp.factory('userData', function($http, $log){
return {
getUsers: function(successcb){
$http({method: 'GET', url: 'api/users'}).
success(function(data, status, headers, config){
successcb(data);
$log.warn(data, status, headers, config);
}).
error(function(data, status, headers, config){
$log.warn(data, status, headers, config);
});
}
}
});
我的HTML是这样的:
<div class="row">
<div>
<p>Filter: <input class="form-control" type="text" ng-model="filter.$" /></p>
<table ng-table="tableParams" class="table">
<tr ng-repeat="user in $data">
<td data-title="'Name'" sortable="name">
{{user.name}}
</td>
<td data-title="'Age'" sortable="'age'">
{{user.age}}
</td>
</tr>
</table>
</div>
</div>
答案 0 :(得分:4)
您需要在ajax完成后解析表$defer
中的getData
。如果您要将filteredData
记录到控制台,它现在就是现在,它将是未定义的,因此无法切片。
尝试将userData.getUsers
移至:
getData: function ($defer, params) {
/* make ajax call */
userData.getUsers(function(users) {
/* now we have data to work with*/
$scope.users = users;
var filteredData = $filter('filter')(users, $scope.filter);
var orderedData = params.sorting() ? $filter('orderBy')(filteredData, params.orderBy()) : filteredData;
/* and can resolve table promise */
$defer.resolve(orderedData.slice((params.page() - 1) * params.count(), params.page() * params.count()));
})
}