新增商品分类树接口

addons/shopro/controller/Category.php

@@ -3,6 +3,7 @@
 namespace addons\shopro\controller;
 
 use app\admin\model\shopro\Category as CategoryModel;
+use think\Cache;
 
 class Category extends Common
 {
@@ -28,4 +29,76 @@ class Category extends Common
 
         $this->success('商城分类', $categories);
     }
+
+    // 缓存键名
+    const CACHE_KEY = 'shopro_category_tree';
+    // 缓存有效期（24小时）
+    const CACHE_TTL = 86400;
+
+    /**
+     * 获取完整分类树（包含二级、三级、四级分类）
+     *
+     * @ApiMethod (GET)
+     * @ApiParams (name="refresh", type="int", required=false, description="是否强制刷新缓存，1=刷新")
+     */
+    public function tree()
+    {
+        $refresh = $this->request->param('refresh', 0);
+
+        // 如果不需要刷新缓存，先尝试从缓存获取
+        if (!$refresh) {
+            $cacheData = Cache::get(self::CACHE_KEY);
+            if ($cacheData) {
+                $this->success('分类列表', $cacheData);
+            }
+        }
+
+        // 从数据库获取一级分类
+        $categories = CategoryModel::where('parent_id', 0)
+            ->normal()
+            ->order('weigh', 'desc')
+            ->order('id', 'desc')
+            ->select();
+
+        // 递归获取子分类（最多四级）
+        foreach ($categories as &$category) {
+            $category['children'] = $this->getChildren($category['id'], 1);
+        }
+        unset($category);
+
+        // 将结果存入缓存
+        Cache::set(self::CACHE_KEY, $categories, self::CACHE_TTL);
+
+        $this->success('分类列表', $categories);
+    }
+
+    /**
+     * 递归获取子分类
+     *
+     * @param int $parentId 父分类ID
+     * @param int $level 当前层级（1=二级，2=三级，3=四级）
+     * @return array
+     */
+    private function getChildren($parentId, $level)
+    {
+        // 最多获取到四级分类
+        if ($level >= 4) {
+            return [];
+        }
+
+        $children = CategoryModel::where('parent_id', $parentId)
+            ->normal()
+            ->order('weigh', 'desc')
+            ->order('id', 'desc')
+            ->select();
+
+        foreach ($children as &$child) {
+            $child['children'] = $this->getChildren($child['id'], $level + 1);
+        }
+        unset($child);
+
+        return $children;
+    }
+
+
 }