ngTableParams分页$ http.get [英] ngTableParams Pagination with $http.get
问题描述
处理AngularJS项目时遇到了以下问题：
Working on an AngularJS project and I've ran into the following problem:
使用本地存储/硬编码数据时，分页工作正常。
使用远程存储的数据时，分页无法正常工作。
When using locally stored / hard coded data, the pagination works fine. When using remotely stored data, the pagination does not work properly.
我搜索了很多，但无法找到问题的解决方案，所以这里是代码snippits：
I have searched quite a bit, but couldn't find the solution to my problem, so here are the code snippits:
HTML：
<div ng-controller="ngTableCtrl">
<p><strong>Pagina:</strong> {{tableParams.page()}}</p>
<p><strong>Aantal weergegeven:</strong> {{tableParams.count()}}</p>
<table ng-table="tableParams" class="table table-striped" template-pagination="custom/pager">
<tr ng-repeat="x in names">
<td data-title="'Name'">{{x.Name}}</td>
<td data-title="'City'">{{x.City}}</td>
<td data-title="'Country'">{{x.Country}}</td>
</tr>
</table>
<script type="text/ng-template" id="custom/pager">
<ul class="pager ng-cloak">
<li ng-repeat="page in pages"
ng-class="{'disabled': !page.active, 'previous': page.type == 'prev', 'next': page.type == 'next'}"
ng-show="page.type == 'prev' || page.type == 'next'" ng-switch="page.type">
<a ng-switch-when="prev" ng-click="params.page(page.number)" href="">« Previous</a>
<a ng-switch-when="next" ng-click="params.page(page.number)" href="">Next »</a>
</li>
<li>
<div class="btn-group">
<button type="button" ng-class="{'active':params.count() == 2}" ng-click="params.count(2)" class="btn btn-default">2</button>
<button type="button" ng-class="{'active':params.count() == 5}" ng-click="params.count(5)" class="btn btn-default">5</button>
<button type="button" ng-class="{'active':params.count() == 10}" ng-click="params.count(10)" class="btn btn-default">10</button>
<button type="button" ng-class="{'active':params.count() == 15}" ng-click="params.count(15)" class="btn btn-default">15</button>
</div>
</li>
</ul>
</script>
</div>
JS：
app.controller('ngTableCtrl2', function ($scope, $http, $filter, ngTableParams) {
$http.get('http://www.w3schools.com/angular/customers.php')
.success(function (response) {$scope.names = response.records;});
$scope.tableParams = new ngTableParams({
page: 1, // show first page
count: 5, // count per page
sorting: {
name: 'asc' // initial sorting
}
}, {
total: data.length, // length of data
getData: function ($defer, params) {
// use build-in angular filter
var orderedData = params.sorting() ? $filter('orderBy')(data, params.orderBy()) : data;
$defer.resolve(orderedData.slice((params.page() - 1) * params.count(), params.page() * params.count()));
}
});
});
网页（实时版本： http://178.62.232.175:8080/STANDARD/#/app/table/data ）显示第一个表格中的所有结果（远程，从$ http.get），而第二个表，只显示设置结果？！ （2,5,10,15）
代码相同，但以下情况除外：
The webpage ( live version: http://178.62.232.175:8080/STANDARD/#/app/table/data ) shows all results in the first table (remote, from $http.get), whilst the second table, shows only the set results?! (2, 5, 10, 15) The code is identical, except for:
<tr ng-repeat="x in names">
用于显示远程数据并替换为：
used to display remote data and is replaced by:
<tr ng-repeat="x in $data">
显示原始数据：
var data = [{
Name: "Alfreds Futterkiste", City: "Berlin", Country: "Germany"},{
Name: "Ana Trujillo Emparedados", City: "México D.F.", Country: "Mexico"},{
Name: "Antonio Moreno Taquería", City: "México D.F.", Country: "Mexico"},{
Name: "Around the Horn", City: "London", Country: "UK"},{
Name: "B's Beverages", City: "London", Country: "UK"},{
Name: "Berglunds snabbköp", City: "Luleå", Country: "Sweden"},{
Name: "Blauer See Delikatessen", City: "Mannheim", Country: "Germany"},{
Name: "Blondel père et fils", City: "Strasbourg", Country: "France"},{
Name: "Bólido Comidas preparadas", City: "Madrid", Country: "Spain"},{
Name: "Bon app", City: "Marseille", Country: "France"},{
Name: "Bottom-Dollar Marketse", City: "Tsawassen", Country: "Canada"},{
Name: "Cactus Comidas para llevar", City: "Buenos Aires", Country: "Argentina"}
];
第二个表的分页工作正常。我必须编辑什么才能使它与远程数据一起使用？
The pagination of the second table works as it should. What must I edit to make it work with remote data?
推荐答案
首先，您的代码使用本地数据数组作为ngTables中的来源 getData 回调并不清楚你所呈现的是一个比较，因为你实际上没有尝试 AJAX数据加载。
First of all your code is using the local data array as a source in ngTables getData callback and it is not clear what you are presenting as a comparison since you did not actually try AJAX Data Loading from the official examples .
相反，我希望它能使用$ http.get对服务器进行api调用。
Instead I would expect it to have an api call to the server using $http.get.
记住要使服务器端分页工作，每次查询数据时都必须更新总计数，因为它们可能已更改。此外，您还必须考虑服务器端解决方案进行排序。
Remember for server side paging to work you must update the total count each time you query for data because they may have changed. Also you will have to consider a server side solution for sorting as well.
这是一个使用github api作为测试服务的工作示例。
Here is a working sample using the github api as a test service.
var app = angular.module('main', ['ngTable']);
app.controller('MainCtrl', function($scope, $http, ngTableParams) {
$scope.tableParams = new ngTableParams({
page: 1,
count: 5,
}, {
getData: function ($defer, params) {
var page = params.page();
var size = params.count();
var testUrl = 'https://api.github.com/search/repositories';
var search = {
q: 'angular',
page: page,
per_page: size
}
$http.get(testUrl, { params: search, headers: { 'Content-Type': 'application/json'} })
.then(function(res) {
params.total(res.data.total_count);
$defer.resolve(res.data.items);
}, function(reason) {
$defer.reject();
}
);
},
});
});
<link href="https://cdnjs.cloudflare.com/ajax/libs/ng-table/0.3.3/ng-table.min.css" rel="stylesheet"/>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ng-table/0.3.3/ng-table.min.js"></script>
<div ng-app="main" ng-controller="MainCtrl">
<table ng-table="tableParams" class="table table-striped table-bordered table-hover table-condensed">
<tr ng-repeat="repo in $data">
<td data-title="'id'">{{repo.id}}</td>
<td data-title="'name'">{{repo.name}}</td>
<td data-title="'owner'">{{repo.owner.login}}</td>
</tr>
</table>
<div>
这篇关于ngTableParams分页$ http.get的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
