可以'编辑后不会将数据保存在数据库中，但网格显示更改

can't save data in database after editing, but grid shows changes

本文关键字：数据库 存在 网格 显示 保存 数据 编辑 可以      更新时间：2023-09-26

当我编辑网格中的行时，更改只显示在该网格中。但当我重新加载网格时，所有更新都会消失，因为数据库中的数据尚未更新

谁能提示我哪里错了。这是我的测试.html

<script type="text/javascript" src="js/jquery.js"></script>
<script src="js/i18n/grid.locale-ru.js" type="text/javascript"></script>
<script src="js/i18n/grid.locale-en.js" type="text/javascript"></script>
<script src="js/jquery.jqgrid.min.js" type="text/javascript"></script>
<script src="js/grid.common.js" type="text/javascript"></script>
<script src="js/grid.formedit.js" type="text/javascript"></script>
<script type="text/javascript">
    $(function(){
                $('#table').jqGrid({
                        url:'test.php',
                        datatype: 'json',
                        mtype: 'POST',
                        height: 500,
                        colNames:['Код страны','Код региона', 'Город','Долгота','Широта','nbip'],
                        colModel :[
                                    {name:'country_code', index:'country_code', width:80, editable:true, edittype:'text'},
                                    {name:'region_code', index:'region_code', width:180, editable:true, edittype:'text'},
                                    {name:'city', index:'city', width:190, editable:true, edittype:'text'},
                                    {name:'latitude', index:'latitude', width:160, editable:true, edittype:'text'},
                                    {name:'longitude', index:'longitude', width:160, editable:true, edittype:'text'},
                                    {name:'nbip', index:'nbip', width:130, editable:true, edittype:'text'}],
                        pager: $('#tablePager'),
                        pgtext : "Page {0} of {1}",
                        rowNum:100,
                        rowList:[10,20,30,100],
                        sortname: 'city',
                        sortorder: 'asc',
                        caption: 'Загрузка JSON данных',
                        rownumbers: true,
                        rownumWidth: 40
                });


                jQuery("#table").jqGrid('navGrid','#tablePager',
                {edit:true,add:true,del:true,search:true}, //options
                {url:'edit.php', height:280,reloadAfterSubmit:false, closeAfterEdit: true}, // edit options
                {height:280,reloadAfterSubmit:false}, // add options
                {reloadAfterSubmit:false}, // del options
                {} // search options
                );

                        }

    });
</script>
</head>
<body>
        <table id="table"></table>
        <div id="tablePager"></div>
</form>
</body>
</html>

test.php

    <?php
$db = mysql_connect($db_host, $db_login, $db_passwd);
mysql_select_db($db_name);
$page = $_POST['page'];     
$limit = $_POST['rows'];     
$sidx = $_POST['sidx'];      
$sord = $_POST['sord'];    
if(!$sidx) $sidx =1; 
$result = mysql_query("SELECT COUNT(*) AS count FROM cities"); 
$row = mysql_fetch_array($result,MYSQL_ASSOC);
$count = $row['count']; 

if( $count > 0 && $limit > 0) { 
    $total_pages = ceil($count/$limit);
} else {
    $total_pages = 0;
}
if ($page > $total_pages) $page=$total_pages; 
$start = $limit*$page - $limit; 
if($start <0) $start = 0; 
$query = "SELECT id, country_code, region_code, city, latitude, longitude, nbip FROM cities ORDER BY ".$sidx." ".$sord." LIMIT ".$start.", ".$limit; 
$result = mysql_query($query);
$data->page = $page;
$data->total = $total_pages;
$data->records = $count;
$i = 0; 
while($row = mysql_fetch_assoc($result)) {
    $data->rows[$i]['id'] = $row[id];
    $data->rows[$i]['cell'] = array($row[country_code],$row[region_code],$row[city],$row[latitude],$row[longitude],$row[nbip]);
    $i++;
}
header("Content-type: text/script;charset=utf-8"); 
echo json_encode($data);
?>

edit.php

$db = mysql_connect($db_host, $db_login, $db_passwd) or die("Connection Error: " . mysql_error());
mysql_select_db($db_name) or die("Error conecting to db.");
//mysql_query("SET NAMES 'utf8'");
 // And so on for the other form values
    $id = $_POST['id'];
    $country_code = mysql_real_escape_string($_POST['country_code']);
    $region_code = mysql_real_escape_string($_POST['region_code']);
    $city = $_POST['city'];
    $latitude = mysql_real_escape_string($_POST['latitude']);
    $longitude = mysql_real_escape_string($_POST['longitude']);
    $nbip = mysql_real_escape_string($_POST['nbip']);
if($_POST['oper']=='add'){
   // mysql insert
}else if($_POST['oper']=='edit'){
   // mysql update
    $query = "UPDATE cities SET city = '".$city."' WHERE id = ".$id;
    $result = mysqli_query($db,$query) or die(mysql_error()); 
    break;
}else if($_POST['oper']=='del'){
   // mysql delete
}
?>

谢谢。

您正在使用mysqli进行数据更新，并在代码中使用mysql_real_escape_string, mysql_connect, mysql_select_db。

更新您的代码以仅使用mysqli，而不是同时使用mysql和mysqli

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