laravel 如何只恢复最后被软删除删除的项目

Question

我有购物车 table，其中保存了所有客户订单。

+---------------------------------------- ----------------------------------+

+---------------------------------------- ----------------------------------+

当用户软删除时我们要软删除他卡片中的所有项目

当用户想要还原时，我们想要还原上次软删除的那些项目

我可以实现。

这是我代码中的还原函数：

public function revertBackDeletedItems(Request $request)
{
    $user = apiGetUser();
    if ($user == null) {
        return apiAbort(401);
    }

    $purchaseCartCount = $user->cart()->onlyTrashed()->count();
    if ($purchaseCartCount == 0) {
        return [
            'success' => false,
            'message' => 'no items in card '
        ];
    }

    $purchaseCartDateTimeInLatestDelete = $user->cart()->onlyTrashed()->orderBy('id', 'desc')->first()['deleted_at'];

    $purchaseCarts = PurchaseCart::onlyTrashed()->where('user_id', $user->id)->where('deleted_at', $purchaseCartDateTimeInLatestDelete)->get();
    foreach ($purchaseCarts as $key => $purchaseCart) {
        $purchaseCart->restore($purchaseCart->id);
    }
    return ['success' => true];
}

这是只删除最后一次删除的项目的功能吗？

 public function deleteLastTrashed(Request $request)
{
    $user = apiGetUser();
    if ($user == null) {
        return apiAbort(401);
    }

    $purchaseCartCount = $user->cart()->onlyTrashed()->count();
    if ($purchaseCartCount == 0) {
        return [
            'success' => false,
            'message' => 'no items in card '
        ];
    }

    $purchaseCartDateTimeInLatestDelete = $user->cart()->onlyTrashed()->orderBy('id', 'desc')->first()['deleted_at'];

    $purchaseCarts = PurchaseCart::onlyTrashed()->where('user_id', $user->id)->where('deleted_at', $purchaseCartDateTimeInLatestDelete)->get();
    foreach ($purchaseCarts as $key => $purchaseCart) {
        $purchaseCart->forceDelete($purchaseCart->id);
    }
    return ['success' => true];
}

我怎样才能更好地获得 deleted_at？

这不是干净的代码？

我需要更好的方法来实现这个算法

Answer 1

你可以试试这个：

在购物车中添加新字段 table is_deleted 和 is_recent 因此每当用户将删除集 is_deleted = 1;并且 is_recent = 1 到您要删除的那个项目，其余 is_recent = 0；在恢复期间获取 is_recent = 1 的项目；并保存 is_deleted = 1

Answer 2

你快到了：

public function deleteLastTrashed(Request $request)
{
    $user = apiGetUser();
    if ($user == null) {
        return apiAbort(401);
    }

    $purchaseCartCount = $user->cart()->onlyTrashed()->count();
    if ($purchaseCartCount == 0) {
        return [
            'success' => false,
            'message' => 'no items in card '
        ];
    }

    // here you know that user has at least one soft deleted cart
    $userLastCartSoftDeleted = $user->cart()->onlyTrashed()->orderBy('deleted_at', 'desc')->first();

    $userLastCartSoftDeleted->forceDelete();

    return ['success' => true];
}

laravel 如何只恢复最后被软删除删除的项目

laravel how to revert only last items deleted by soft delete

soft-delete

laravel

laravel-7