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[英]Laravel/Eloquent belongsToMany - Property [people] does not exist on the Eloquent builder instance
[英]Property does not exist on the Eloquent builder instance
我有一張events
桌和一張tickets
桌。 我正在嘗試通過訂購的門票減少regular_atendies
中的可用門票,對於vip
也是如此
這是我的商店方法:
// 創建票證
$ticket = new Ticket();
$ticket->userName = $request->input('userName');
$ticket->userEmail = $request->input('userEmail');
$ticket->phoneNumber = $request->input('phoneNumber');
$ticket->regular_quantity = $request->input('regular_quantity');
$ticket->vip_quantity = $request->input('vip_quantity');
$ticket->event_id = $request->route('id');
$ticket->total = $request->input('regular_quantity') + $request->input('vip_quantity');
$event = Event::find(1);
$event = Event::where('id',$ticket->event_id);
if ($ticket->regular_quantity<$event->regular_attendies) {
DB::table('events')->decrement('regular_attendies', $ticket->regular_quantity);
} elseif ($ticket->vip_quantity<$event->$vip_attendies) {
DB::table('events')->decrement('vip_attendies', $ticket->vip_quantity);
} else {
echo "error";
}
$ticket->save();
return redirect('/');
你永遠不會執行你的查詢。 這一行:
$event = Event::where('id',$ticket->event_id);
需要關閉:
$event = Event::where('id',$ticket->event_id)->first();
// or ->firstOrFail();, etc
否則,它是一個Builder
實例,您無法從Builder
訪問列。 使用->first()
會將其轉換為Event
實例,或null
。
另外,有這個:
$event = Event::find(1);
// ^ I assume this is used for testing, probably should comment it out.
$event = Event::where('id',$ticket->event_id)->first();
是多余的。 使用其中一種。
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