laravel 集合嵌套“where”

Question

假设以下集合：

 [
   order
    -id
    -receiverAddress
    -...
    relations
        transactions
            -id
            -transaction_id_external
            - ...
 ]

我尝试在集合中使用以下过滤器：

    $isNotEmpty = $orders->filter(function ($order) use ($receivedPaymentDetails) {
        return $order->transactions
            ->where('transaction_id_external', $receivedPaymentDetails->txid)
            ->where('order.receiverAddress', $receivedPaymentDetails->address)
            ->isNotEmpty();
    })->isNotEmpty();

这似乎不起作用，知道如何过滤父集合项 order.receiverAddress 吗？

Answer 1

由于您想根据交易关系进行过滤，因此您必须对交易表执行某种形式的连接查询

最简单的方法是将查询放在 whereHas 回调中

$isNotEmpty = $orders->filter(function ($order) use ($receivedPaymentDetails) {
            return $order->whereHas('transactions', function ($query) use ($receivedPaymentDetails) {
                $query->where('transactions.transaction_id_external', $receivedPaymentDetails->txid);
                $query->where('order.receiverAddress', $receivedPaymentDetails->address);
            })
                ->isNotEmpty();
        })->isNotEmpty();