public function updateCommodityStatistics($userId, $commodityId)
{
$statistics = CustomerCommodityStatistics::where('customer_id', $userId)->where('commodity_id', $commodityId)->first();
if (!$statistics) {
$statistics = new CustomerCommodityStatistics();
$statistics->customer_id = $userId;
$statistics->commodity_id = $commodityId;
$statistics->count = 0;
}
/*if>*/
$statistics->count += 1;
$statistics->save();
}
