优化购买产品优惠列表查询逻辑

- 移除冗余的用户ID设置代码
- 改用类属性存储用户ID，提高性能
- 修正查询条件，确保只查询用户相关数据
- 优化计数逻辑，无用户时返回0

app/api/controller/purchase_product_offer/PurchaseProductOfferController.php

@@ -26,7 +26,6 @@ class PurchaseProductOfferController extends BaseApiController
      */
     public function lists()
     {
-        $this->request->__set('uid',$this->userId);
         return $this->dataLists(new PurchaseProductOfferLists());
     }
 

app/api/lists/purchase_product_offer/PurchaseProductOfferLists.php

@@ -18,7 +18,6 @@ use app\api\lists\BaseApiDataLists;
 class PurchaseProductOfferLists extends BaseApiDataLists implements ListsSearchInterface
 {
 
-    public $userId;
     /**
      * @notes 设置搜索条件
      * @return \string[][]
@@ -44,9 +43,8 @@ class PurchaseProductOfferLists extends BaseApiDataLists implements ListsSearchI
      */
     public function lists(): array
     {
-        $uid=$this->request->__get('uid');
-        if($uid){
-            $this->searchWhere[]=['buyer_id','=',$uid];
+        if($this->userId>0){
+            $this->searchWhere[]=['buyer_id','=',$this->userId];
         }else{
             return [];
         }
@@ -87,10 +85,10 @@ class PurchaseProductOfferLists extends BaseApiDataLists implements ListsSearchI
      */
     public function count(): int
     {
-        if($this->userId){
-            return 0;
-        }else{
+        if($this->userId>0){
             return PurchaseProductOffer::where($this->searchWhere)->count();
+        }else{
+            return 0;
         }
     }