我有一个名为related_products 的表,
products_id
主要产品在哪里
。
并由related_products_ids
与主要产品相关的产品 ID 组成。
--------------------------------------------
| products_id | related_products_ids |
| -----------------------------------------
| 1 | 2,3 |
| -----------------------------------------
| 2 | 1,3 |
| -----------------------------------------
| 3 | 1,2 |
-------------------------------------------
我有复选框,
<input value="1" type="checkbox" name="rp_product[]" id="in-category1"> Microsoft IntelliMouse Pro 1
<input value="2" type="checkbox" name="rp_product[]" id="in-category2"> Microsoft IntelliMouse Pro 2
<input value="3" type="checkbox" name="rp_product[]" id="in-category3"> Microsoft IntelliMouse Pro 3
复选框由php生成,
<?php
echo '<div class="categorydiv"><div id="category-all" class="tabs-panel"><ul id="categorychecklist" class="list:category categorychecklist form-no-clear">';
$rp_sql = "select products_id, products_name from ".TABLE_PRODUCTS_DESCRIPTION." order by products_id";
$rp_1 = mysql_query($rp_sql);
while($rp_2 = mysql_fetch_array($rp_1)) {
echo "<li id=\"category-".$rp_2['products_id']."\" class=\"popular-category\"><label class=\"selectit\"><input value=\"".$rp_2['products_id']."\" type=\"checkbox\" name=\"rp_product[]\" id=\"in-category-1\"> ".$rp_2['products_name']."</label></li>";
}
mysql_free_result($rp_1);
echo '</ul></div></div>';
?>
我使用此代码将选中的复选框保存到related_products
表中,
for ($i=0; $i<count($_POST['rp_product']); $i++)
{
$check_val1 .= $_POST['rp_product'][$i] .","; //gather data
}
$check_val = trim($check_val1, ','); //clean last ,
unset($check_val1); //flush
$related_products = array('products_id' => (int)$products_id,
'related_products_ids' => $check_val);
$insert_rp_ids1 = explode(',', $check_val);
foreach($insert_rp_ids1 as $rp_ids)
{
$result_rp = mysql_query("SELECT related_products_ids, products_id FROM ".TABLE_RELATED_PRODUCTS." where products_id = '" . $rp_ids ."'");
if(mysql_num_rows($result_rp))
{
$related_products_value = mysql_fetch_assoc($result_rp);
$check_dup = explode(',', $related_products_value['related_products_ids']);
$rp_values = $related_products_value['related_products_ids'] . "," . $products_id;
$rps_each1 = array('related_products_ids' => $rp_values);
if(!in_array($products_id, $check_dup)) {
$wpdb->update( TABLE_RELATED_PRODUCTS, $rps_each1, array( 'products_id' => $rp_ids ));
}
}
else
{
$rps_each2 = array('products_id' => $rp_ids, 'related_products_ids' => $products_id);
$wpdb->insert(TABLE_RELATED_PRODUCTS, $rps_each2);
}
}
当先前选择的复选框被取消选择时,我想要的是列unset
下的特定 id 。related_products_ids
假设我正在编辑 id 所在的帖子2
以及related_products_ids
它的所在位置1,3
.. 我取消选中了值所在的复选框3
(在 上related_products_ids
),在点击保存按钮后,将取消设置3
上的值,因此当前值related_products_ids
现在是1
。怎么做?我无法思考并找到解决方案。
请帮忙。