// +---------------------------------------------------------------------- namespace app\common\dao\store\product; use app\common\dao\BaseDao; use app\common\model\store\product\ProductAssistSku; use think\facade\Db; class ProductAssistSkuDao extends BaseDao { protected function getModel(): string { return ProductAssistSku::class; } public function clear($id) { $this->getModel()::getDB()->where('product_assist_id',$id)->delete(); } public function descStock(int $product_assist_id, string $unique, int $desc) { return $this->getModel()::getDB()->where('product_assist_id', $product_assist_id)->where('unique', $unique)->update([ 'stock' => Db::raw('stock-' . $desc) ]); } public function incStock(int $product_assist_id, string $unique, int $desc) { return $this->getModel()::getDB()->where('product_assist_id', $product_assist_id)->where('unique', $unique)->update([ 'stock' => Db::raw('stock+' . $desc) ]); } }