在 DataTable 服务器端显示名称行而不是 id

Question

我在数据库（MySql）中有两张表，一张是国家名称，另一张是用户名。现在，当一些用户被添加到他/她从他/她所在的位置选择的站点时......一切都很好，但是由于用户数据库增长到 2,000 个用户，我需要强制更改为服务器端数据表以显示所有没有的用户脚本强制冻结屏幕或站点。现在我看不到每个用户的国家/地区名称，只有 id...所以我的问题是需要添加或更改什么才能看到国家名称而不是 id。

我关注这些帖子：

1. how-relating-two-tables-to-show-name-row-and-not-the-id-in-mysqlpdo
2. server-side

这是我的数据库：

|----------USERS-------------|
|---id-----------int---------|
|---nombres---varchar(150)---| is the user name
|---fnac-------datetime------| is the birthday
|---direccion----text--------| is the address
|---paisid--------int(3)-----| is the country id
|---foto-------varchar(50)---| is the user photo
|----------------------------|

|-----------PAISES-----------|
|---id---------int(11)-------| is the country id
|---paises---varchar(100)----| is the country name
|----------------------------|

这是我的代码（现在我不使用它，因为我不知道我需要在哪里插入它）：

<?php $query = "SELECT U.paisid, P.pais,
(SELECT pais FROM PAISES WHERE id = paisid)
AS pais
FROM USERS U
INNER JOIN PAISES P
ON  U.paisid = P.id";
$stmt = $conn->prepare( $query );   
$stmt->execute();
$rows = $stmt->fetchAll();
foreach( $rows as $row )
{ ?><?php echo $row['pais']; ?><?php } ?>

JS：

$('#userTabla').dataTable( {
    "bProcessing": true,
    "bServerSide": true,
    "sDom": "<'row-fluid'<'span6'l><'span6'f>r>t<'row-fluid'<'span12'i><'span12 center'p>>",
    "sAjaxSource": "includes/server_process.php",
    "aoColumns": [
        { "mData": "id" },
        { "mData": "nombres" },
        { "mData": "paisid" },
        {
            "mData": null,
            "sClass": "center",
            "sDefaultContent": "",
            "fnRender": function (o) {
            return '<a href="perfil.php?id=' + o.aData[0] + '" class="btn btn-success"><i class="icon-user icon-white"></i> Ver perfil</a> <a href="editar.php?id=' + o.aData[0] + '" class="btn btn-info"><i class="icon-edit icon-white"></i> Editar</a> <a id="' + o.aData[0] + '" class="btn btn-danger" href="#"><i class="icon-trash icon-white"></i> Borrar</a>'
        },
        "aTargets": [3]
        }
    ],
    "sPaginationType": "bootstrap",
    "oLanguage": {
    "sLengthMenu": "_MENU_ registros por pag"
    }
});

server_process.php（我更改示例数据的部分）

$aColumns = array( 'id', 'nombres', 'paisid');

/* Indexed column (used for fast and accurate table cardinality) */
$sIndexColumn = "id";

/* DB table to use */
$sTable = "USERS";

/* Database connection information */
$gaSql['user']       = "dbuser";
$gaSql['password']   = "XXXXXX";
$gaSql['db']         = "dbmega";
$gaSql['server']     = "localhost";

Answer 1

 <?php 
$query = "SELECT USERS.* , PAISES.`paises` as countryName
FROM USERS 
INNER JOIN PAISES 
ON  paisid = id";

$stmt = $conn->prepare( $query );   
$stmt->execute();
$rows = $stmt->fetchAll();

 $returnArray = array();
foreach( $rows as $row )
{ 
returnArray[] = array($row['id'],$row['nombres'],$row['countryName']);
}

请将 paisid 类型更改为 int

var myDataTable = $('#userTabla').dataTable( {
    "bProcessing": true,
    "bServerSide": true,
    "sDom": "<'row-fluid'<'span6'l><'span6'f>r>t<'row-fluid'<'span12'i><'span12  center'p>>",
    "sAjaxSource": "includes/server_process.php",
    "aoColumns": [
        { "mData": "id" },
        { "mData": "nombres" },
        { "mData": "paisid" },
         {
           "mData": null,
           "sClass": "center",
           "sDefaultContent": "",
           "fnRender": function (o) {
           return '<a href="perfil.php?id=' + o.aData[0] + '" class="btn btn-success"><i class="icon-user icon-white"></i> Ver perfil</a> <a href="editar.php?id=' + o.aData[0] + '" class="btn btn-info"><i class="icon-edit icon-white"></i> Editar</a> <a id="' + o.aData[0] + '" class="btn btn-danger" href="#"><i class="icon-trash icon-white"></i> Borrar</a>'
         },
         "aTargets": [3]
        }
    ],
    "sPaginationType": "bootstrap",
    "oLanguage": {
    "sLengthMenu": "_MENU_ registros por pag"
    }
});

myDataTable.fnAddData( <? echo json_encode(returnArray[]); ?>);