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[英]mysql CREATE TABLE with JOIN multiple tables … php automatically update the new table when data is added to the tables that are joined
[英]delete data from multiple tables when joined all tables php larvel
我的代码有问题。 我必须使用ID从5个表中删除数据,这些表由主键和外键连接。
这是我尝试过的方法,但它将显示添加订阅表ID。 但是已经添加了订阅表ID。
$subscription = DB::table('tbl_asset_subscription')->where('id',$post['asset_id'])->get();
foreach($subscription as $row)
{
DB::table('tbl_asset_subscription')->where('id',$row->id)->delete();
}
$orderId = array();
foreach($subscription as $row)
{
$order = DB::table('tbl_asset_order')->where('subscription_id',$row->id)->first();
$orderId[] = $order->id;
}
foreach($orderId as $row)
{
DB::table('tbl_asset_payment')->where('order_id',$row->id)->delete();
DB::table('tbl_asset_order')->where('id',$row->id)->delete();
}
DB::table('tbl_asset_versions')->where('asset_id',$post['asset_id'])->delete();
DB::table('tbl_assets')->where('id',$post['asset_id'])->delete();
// DB::table('tbl_asset_subscription')->where('asset_id',$post['asset_id'])->delete();
echo(json_encode(array("result" => true)));
{
"message": "SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`piccoscript`.`tbl_asset_subscription`, CONSTRAINT `fk_tbl_asset_subscription_tbl_assets` FOREIGN KEY (`asset_id`) REFERENCES `tbl_assets` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION) (SQL: delete from `tbl_assets` where `id` = 1)",
"exception": "Illuminate\\Database\\QueryException",
"file": "/var/www/html/piccoscript/vendor/laravel/framework/src/Illuminate/Database/Connection.php",
"line": 664,
"trace": [
{
"file": "/var/www/html/piccoscript/vendor/laravel/framework/src/Illuminate/Database/Connection.php",
"line": 624,
"function": "runQueryCallback",
"class": "Illuminate\\Database\\Connection",
"type": "->"
},
您可以暂时禁用外键约束
在Laravel中,您可以执行以下操作:
$orderId = array();
$subscription = DB::table('tbl_asset_subscription')->where('id',$post['asset_id'])->get();
DB::transaction(function() {
DB::statement('SET FOREIGN_KEY_CHECKS=0');
foreach($subscription as $row) {
DB::table('tbl_asset_subscription')->where('id', $row->id)->delete();
}
foreach($subscription as $row) {
$order = DB::table('tbl_asset_order')->where('subscription_id', $row->id)->first();
$orderId[] = $order->id;
}
if($orderId) {
DB::table('tbl_asset_payment')->whereIn('order_id', $orderId)->delete();
DB::table('tbl_asset_order')->whereIn('id', $orderId )->delete();
}
DB::table('tbl_asset_versions')->where('asset_id', $post['asset_id'])->delete();
DB::table('tbl_assets')->where('id', $post['asset_id'])->delete();
DB::statement('SET FOREIGN_KEY_CHECKS=1');
});
echo(json_encode(array("result" => true)));
$ orderId不是关联数组,因此出现错误。 试试这个代码。
foreach($subscription as $row)
{
$order = DB::table('tbl_asset_order')->where('subscription_id',$row->id)->first();
$orderId[] = array(
'id' => $order->id
);
}
foreach($orderId as $row)
{
DB::table('tbl_asset_payment')->where('order_id',$row->id)->delete();
DB::table('tbl_asset_order')->where('id',$row->id)->delete();
}
DB::table('tbl_asset_versions')->where('asset_id',$post['asset_id'])->delete();
DB::table('tbl_assets')->where('id',$post['asset_id'])->delete();
// DB::table('tbl_asset_subscription')->where('asset_id',$post['asset_id'])->delete();
echo(json_encode(array("result" => true)));
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