refactor: 产品购买链接上传校验同型号同平台重复问题

app/admin/controller/v1/ProductPurchaseLink.php

@@ -120,6 +120,15 @@ class ProductPurchaseLink
             ->where('platform', 'in', $platforms_name)
             ->column('id', 'platform');
 
+        // 表格中spu的平台重复次数
+        $spu_platform_map = [];
+        foreach ($xlsx_data as $v) {
+            if (!isset($spu_platform_map[$v['spu'] . '_' . $v['platform']])) {
+                $spu_platform_map[$v['spu'] . '_' . $v['platform']] = 0;
+            }
+            $spu_platform_map[$v['spu'] . '_' . $v['platform']]++;
+        }
+
         $data   = [];
         $errors = [];
         $chunks = array_chunk($xlsx_data, 500, true);
@@ -140,6 +149,10 @@ class ProductPurchaseLink
                     $errors[] = sprintf("第%d行，型号不存在", $r);
                     continue;
                 }
+                if ($spu_platform_map[$it['spu'] . '_' . $it['platform']] > 1) {
+                    $errors[] = sprintf("第%d行，型号【%s】和平台【%s】有重复", $r, $it['spu'], $it['platform']);
+                    continue;
+                }
                 $items[] = [
                     'language_id'  => request()->lang_id,
                     'product_id'   => $products_map[$it['spu']],