Question

我一直在做很多关于为什么我的服务器端脚本不会处理分页的研究。

我已经看过很多帖子，其中人们有同样的问题，而且这通常是由脚本提供的JSON响应引起的：

这是我服务器端脚本的json数据响应。

//set at the top of file
$requestData= $_REQUEST;

$json_data = array(
    "draw"              => intval( $requestData['draw'] ),
    "recordsTotal"      => intval( $totalData ),
    "recordsFiltered"   => intval( $totalFiltered ),
    "data"              => $Data
 );

这是我对DataTable的初始化

    var table = $('#table_id').DataTable({
        "processing": true,
        "serverSide": true,
        scrollY: 500,
        paging: true,
        "pagingType": "full_numbers",
        "iDisplayLength": "50",
        "order": [[0,'asc'],[1,'asc'],[2,'asc']],
        "ajax": {
            url : "php/Inventory/Actions/LoadCatalog.php?Commodity="+Commodity+"&Make="+Make,
            type: "post",  // method  , by default get
            error: function(){  // error handling
            }
        },
        "aoColumns":[
            {"mData": "Commodity"},
            {"mData": "Make"},
            {"mData": "PartNumber"},
            {"mData": "Description"},
            {"mData": "Condition", "sClass": "myCenter"},
            {"mData": "Qty", "sClass": "myCenter"},
            {"mData": "From"}
        ],
        "bFilter": false,
        "fnDrawCallback": function (oSettings) {
            //alert( 'DataTables has redrawn the table' );
            console.log(oSettings.json);
            LoopData();
        },
        error: function (xhr, error, thrown) {
            alert(error);
        }
    });

现在我第一次装表，每件事似乎都很好...... 我的JSON回复：

draw : 1
recordsFiltered : 3059
recordsTotal : 3059

表格的页脚显示

Showing 1 to 50 of 3,059 entries

现在！如果我点击下一个按钮，它就会崩溃。

draw : 2
recordsFiltered : 3059
recordsTotal : 3059

我的页脚：

Showing 0,501 to 3,059 of 3,059 entries

此时我无法再点击下一步。（它不会做任何事......）我可以点击第一个和上一个按钮，它将返回到第一页，一切看起来都没问题。

要澄清一下，在我的服务器端脚本中我设置$ totalData和$ totalFiltered就像这样

//$sql = my selector statement with all the total records (3,5059)
$sql = "
SELECT `Inventory`.`Commodity`, `Inventory`.`Make`, 
`Inventory`.`PartNumber`, `Inventory`.`Model`, 
`Inventory`.`Condition`,SUM(`Inventory`.`Qty`) as `SumQty`, 
GROUP_CONCAT(DISTINCT `Contacts`.`Name` SEPARATOR '<hr>') as `From`
FROM `Inventory`
INNER JOIN `Purchasing` ON `Inventory`.`JobNumber` =                 
`Purchasing`.`JobNumber`
INNER JOIN `Contacts` ON `Purchasing`.`Vendor` = `Contacts`.`id`
WHERE `Inventory`.`Saved` = '1' AND `Purchasing`.`Status` != 'Pending'
GROUP BY `Inventory`.`Commodity`, `Inventory`.`Make`, 
`Inventory`.`PartNumber`, `Inventory`.`Model`, `Inventory`.`Condition`
";
$InvData=mysql_query($sql);
$totalData = mysql_num_rows($InvData);

//then again i update my sql, including my filters and WITHOUT limit set
// my filters are nothing - i dont do a search or any other kind filter so 
   the data will be the same | total records (3,5059)
$InvData=mysql_query($sql)
$totalFiltered = mysql_num_rows($InvData);

DataTables - 服务器端分页问题

0 个答案: