我在内存中有大约1000项的数据集,并试图创建一个寻呼机 这个数据集,但我不确定怎么做。

我正在使用一个自定义过滤器函数来过滤结果,这工作得很好,但我需要以某种方式获得页数。

有线索吗?


当前回答

这是我的例子。选中按钮在列表中间 控制器。 配置> > >

 $scope.pagination = {total: null, pages: [], config: {count: 10, page: 1, size: 7}};

分页逻辑:

/*
     Pagination
     */
    $scope.$watch('pagination.total', function (total) {
        if(!total || total <= $scope.pagination.config.count) return;
        _setPaginationPages(total);
    });

    function _setPaginationPages(total) {
        var totalPages = Math.ceil(total / $scope.pagination.config.count);
        var pages = [];
        var start = $scope.pagination.config.page - Math.floor($scope.pagination.config.size/2);
        var finish = null;

        if((start + $scope.pagination.config.size - 1) > totalPages){
            start = totalPages - $scope.pagination.config.size;
        }
        if(start <= 0) {
            start = 1;
        }

       finish = start +  $scope.pagination.config.size - 1;
       if(finish > totalPages){
           finish = totalPages;
       }


        for (var i = start; i <= finish; i++) {
            pages.push(i);
        }

        $scope.pagination.pages = pages;
    }

    $scope.$watch("pagination.config.page", function(page){
        _setPaginationPages($scope.pagination.total);
        _getRespondents($scope.pagination.config);
    });

以及我对引导的看法

<ul ng-class="{hidden: pagination.total == 0}" class="pagination">
        <li ng-click="pagination.config.page = pagination.config.page - 1"
            ng-class="{disabled: pagination.config.page == 1}" ><a href="#">&laquo;</a></li>
        <li ng-repeat="p in pagination.pages"
            ng-click="pagination.config.page = p"
            ng-class="{active: p == pagination.config.page}"><a href="#">{{p}}</a></li>
        <li ng-click="pagination.config.page = pagination.config.page + 1"
            ng-class="{disabled: pagination.config.page == pagination.pages.length}"><a href="#">&raquo;</a></li>
    </ul >

它很有用

其他回答

前面的消息基本上推荐了如何自己构建分页。如果你和我一样,更喜欢一个完整的指令,我刚刚发现了一个很棒的指令,叫做ngTable。它支持排序、过滤和分页。

这是一个非常干净的解决方案,你所需要的是:

   <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>

在控制器中:

$scope.tableParams = new ngTableParams({
    page: 1,            // show first page
    count: 10,          // count per page
    sorting: {
        name: 'asc'     // initial sorting
    }
}, {
    total: data.length, // length of data
    getData: function($defer, params) {
        // use build-in angular filter
        var orderedData = params.sorting() ?
                            $filter('orderBy')(data, params.orderBy()) :
                            data;

        var start = (params.page() - 1) * params.count();
        var end = params.page() * params.count();

        $defer.resolve(orderedData.slice( start, end));
    }
});

GitHub链接:https://github.com/esvit/ng-table/

我最近为用Angular构建的站点实现了分页。你可以签出源代码:https://github.com/angular/builtwith.angularjs.org

我会避免使用过滤器来分离页面。您应该在控制器中将这些项分解为页面。

这是一个纯javascript解决方案,我把它包装成一个Angular服务来实现像谷歌搜索结果那样的分页逻辑。

在http://codepen.io/cornflourblue/pen/KVeaQL/上的CodePen工作演示

细节和解释在这篇博文中

function PagerService() {
    // service definition
    var service = {};

    service.GetPager = GetPager;

    return service;

    // service implementation
    function GetPager(totalItems, currentPage, pageSize) {
        // default to first page
        currentPage = currentPage || 1;

        // default page size is 10
        pageSize = pageSize || 10;

        // calculate total pages
        var totalPages = Math.ceil(totalItems / pageSize);

        var startPage, endPage;
        if (totalPages <= 10) {
            // less than 10 total pages so show all
            startPage = 1;
            endPage = totalPages;
        } else {
            // more than 10 total pages so calculate start and end pages
            if (currentPage <= 6) {
                startPage = 1;
                endPage = 10;
            } else if (currentPage + 4 >= totalPages) {
                startPage = totalPages - 9;
                endPage = totalPages;
            } else {
                startPage = currentPage - 5;
                endPage = currentPage + 4;
            }
        }

        // calculate start and end item indexes
        var startIndex = (currentPage - 1) * pageSize;
        var endIndex = startIndex + pageSize;

        // create an array of pages to ng-repeat in the pager control
        var pages = _.range(startPage, endPage + 1);

        // return object with all pager properties required by the view
        return {
            totalItems: totalItems,
            currentPage: currentPage,
            pageSize: pageSize,
            totalPages: totalPages,
            startPage: startPage,
            endPage: endPage,
            startIndex: startIndex,
            endIndex: endIndex,
            pages: pages
        };
    }
}

概述:分页使用

 - ng-repeat
 - uib-pagination

观点:

<div class="row">
    <div class="col-lg-12">
        <table class="table">
            <thead style="background-color: #eee">
                <tr>
                    <td>Dispature</td>
                    <td>Service</td>
                    <td>Host</td>
                    <td>Value</td>
                </tr>
            </thead>
            <tbody>
                <tr ng-repeat="x in app.metricsList">
                    <td>{{x.dispature}}</td>
                    <td>{{x.service}}</td>
                    <td>{{x.host}}</td>
                    <td>{{x.value}}</td>
                </tr>
            </tbody>
        </table>

        <div align="center">
            <uib-pagination items-per-page="app.itemPerPage" num-pages="numPages"
                total-items="app.totalItems" boundary-link-numbers="true"
                ng-model="app.currentPage" rotate="false" max-size="app.maxSize"
                class="pagination-sm" boundary-links="true"
                ng-click="app.getPagableRecords()"></uib-pagination>        

            <div style="float: right; margin: 15px">
                <pre>Page: {{app.currentPage}} / {{numPages}}</pre>
            </div>          
        </div>
    </div>
</div>

JS控制器:

app.controller('AllEntryCtrl',['$scope','$http','$timeout','$rootScope', function($scope,$http,$timeout,$rootScope){

    var app = this;
    app.currentPage = 1;
    app.maxSize = 5;
    app.itemPerPage = 5;
    app.totalItems = 0;

    app.countRecords = function() {
        $http.get("countRecord")
        .success(function(data,status,headers,config){
            app.totalItems = data;
        })
        .error(function(data,status,header,config){
            console.log(data);
        });
    };

    app.getPagableRecords = function() {
        var param = {
                page : app.currentPage,
                size : app.itemPerPage  
        };
        $http.get("allRecordPagination",{params : param})
        .success(function(data,status,headers,config){
            app.metricsList = data.content;
        })
        .error(function(data,status,header,config){
            console.log(data);
        });
    };

    app.countRecords();
    app.getPagableRecords();

}]);

老问题,但因为我认为我的方法有点不同,不那么复杂,我将分享这一点,希望除了我之外的人觉得它有用。

我发现一个简单而又小的分页解决方案是将一个指令与一个使用相同作用域变量的过滤器结合起来。

为了实现这一点,你在数组上添加过滤器,并像这样添加directiv

<div class="row">
    <table class="table table-hover">
        <thead>
            <tr>
                <th>Name</th>
                <th>Price</th>
                <th>Quantity</th>
            </tr>
        </thead>
        <tbody>
            <tr ng-repeat="item in items | cust_pagination:p_Size:p_Step">
                <td>{{item.Name}}</td>
                <td>{{item.Price}}</td>
                <td>{{item.Quantity}}</td>
            </tr>
        </tbody>
    </table>
    <div cust-pagination p-items="items" p-boundarylinks="true" p-size="p_Size" p-step="p_Step"></div>
</div>

p_Size和p_Step是作用域变量,可以在作用域中自定义,否则p_Size的默认值为5,p_Step为1。

当分页中的步骤发生变化时,p_Step将被更新,并将触发cust_pagination过滤器进行新的过滤。 cust_pagination过滤器然后根据p_Step值对数组进行切片,如下所示,只返回分页部分中选择的活动记录

var startIndex = nStep * nPageSize;
var endIndex = startIndex + nPageSize;
var arr = items.slice(startIndex, endIndex);
return arr;

在这个活塞中查看完整的解决方案