[英]php, mysql, jquery, form element chain select
我在使用链接(表单元素)选择时遇到了麻烦。 我似乎无法使用jquery触发要使用$ examplevar作为第一个下拉列表中选择的选项生成的过滤器进行选择的第二个选择选项。
<form name="vlan" action="" method="post">
<div class="row">
<div class="col-md-6">
<?php
$con_string= "host=example port=xxxx dbname=example user=example password=example";
$db_con = pg_connect($con_string);
$dev = pg_query($db_con, "SELECT DISTINCT \"Type\" FROM \"End_Devices\"");
echo "
<a class=\"current_page_item\">Location NASID:</a>
<input type=\"text\" name=\"nasid\" />
<br>
<a class=\"current_page_item\">Device Name:</a>
<input type=\"text\" name=\"name\" />
<br>
<input type=\"hidden\" name=\"dvtype\"/>
<a class=\"current_page_item\">Device Type:</a>
<select name=\"slType\" id=\"slType\">";
while ($device = pg_fetch_array($dev))
{
echo "<option id=\"" .$device['Type']. "\">" .$device['Type']. "</option>";
}
echo "<script type=\"text/javascript\">
$(\"#slType\").chained(\"#slModel\");
$(\"#slType\").on(\"change\",function(){
var slTypeID = $(this).val();
$.post('inventoryTEST.php', {slTypeID:slTypeID}, function(data){
$('#slModel').html(data);
});
});
</script>";
echo "
</select>
<br>
<a class=\"current_page_item\">Device Model:</a>
<select name=\"slModel\" id=\"slModel\" >";
if (isset($_POST['slTypeid']))
{
$selection = ($_POST(['slTypeid']));
}
$mod = pg_query($db_con, "SELECT \"Model\" FROM \"End_Devices\" WHERE \"Type\"=\"". $selection . "\"");
while ($model = pg_fetch_array($mod))
{
echo $_POST[type];
echo "<option id=\"" .$model['Model']. "\">" .$model['Model']. "</option>";
}
echo "
</select>
<br>
<a class=\"current_page_item\">Physical Location:</a>
<input type=\"text\" name=\"location\" />
<br>
<a class=\"current_page_item\">Serial:</a>
<input type=\"text\" name=\"serial\" />
<br>
<a class=\"current_page_item\">IP Address:</a>
<input type=\"text\" name=\"ip\" />
<br>
<a class=\"current_page_item\">MAC:</a>
<input type=\"text\" name=\"mac\" />
<br>
<a class=\"current_page_item\">SSID:</a>
<input type=\"text\" name=\"ssid\" />
<br>
<a class=\"current_page_item\">WLAN Area:</a>
<input type=\"text\" name=\"wlan\" />
<br>
<br>
<br>
";
?>
<!--SUBMIT INPUT-->
<input type="submit" value="Save" name="submit" />
</div>
</div>
</form>
任何人都可以对上面的代码提出建议吗? 我无法触发on change事件来填充用作sql查询过滤器的var,然后填充第二个链接的下拉列表。 致以最诚挚的问候,
通过使用jquery和.ajax来解决此问题,方法是将选定的行内容.change与post一起传递到外部php,然后在其中查询db,将其用作过滤器并填充第二个组合框。
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