首页修改

app/common.php

@@ -1637,3 +1637,61 @@ if (!function_exists('isHcListEmpty')) {
         return false;
     }
 }
+
+/**
+ * 获取指定栏目下所有子栏目及其内容
+ * @param int $parentId 父栏目ID
+ * @param int $sellerId 商户ID
+ * @param int $limit 每个子栏目返回的内容条数
+ * @param string $sort 排序方式
+ * @return array
+ */
+if (!function_exists('getChildCategoriesContent')) {
+    function getChildCategoriesContent(int $parentId, int $sellerId, int $limit = 6, string $sort = 'publish_time desc'): array
+    {
+        if (empty($parentId)) {
+            return [];
+        }
+        try {
+            $categoryModel = new \app\model\Category();
+
+            // 1. 查询所有子栏目
+            $childCates = $categoryModel->where('parent_id', $parentId)
+                ->where('seller_id', $sellerId)
+                ->order('sort asc')
+                ->select()
+                ->toArray();
+
+            if (empty($childCates)) {
+                return [];
+            }
+
+            // 2. 获取所有子栏目ID
+            $childCateIds = array_column($childCates, 'id');
+
+            // 3. 查询这些子栏目下的文章
+            $contents = \app\model\SubContent::where('category_id', 'in', $childCateIds)
+                ->where('seller_id', $sellerId)
+                ->where('is_del', 1)
+                ->field('id,main_id,title,category_id,description,thumbnail,publish_time')
+                ->order($sort)
+                ->limit($limit)
+                ->select()
+                ->toArray();
+
+            // 4. 批量查询附件URL
+            $thumbIds = array_unique(array_filter(array_column($contents, 'thumbnail')));
+            if (!empty($thumbIds)) {
+                $attachments = \app\model\Attachment::whereIn('id', $thumbIds)->column('url', 'id');
+                foreach ($contents as &$content) {
+                    $content['thumbnail_url'] = $attachments[$content['thumbnail']] ?? '';
+                }
+                unset($content);
+            }
+
+            return $contents;
+        } catch (\Exception $e) {
+            return [];
+        }
+    }
+}