update

app/adminapi/logic/material/MaterialClassifyLogic.php

@@ -102,6 +102,10 @@ class MaterialClassifyLogic extends BaseLogic
      */
     public static function detail($params): array
     {
-        return MaterialClassify::field('id,pid,name,create_time')->findOrEmpty($params['id'])->toArray();
+		$lists = MaterialClassify::field('id,pid,name')->select()->toArray();
+		$ids = getAncestors($params['id'],$lists);
+		$data = MaterialClassify::field('id,pid,name,create_time')->findOrEmpty($params['id'])->toArray();
+		$data['all_pid'] = $ids;
+        return $data;
     }
 }

app/common.php

@@ -322,6 +322,21 @@ function buildTree($items, $parentField, $parentId = 0): array
 	return $tree;
 }
 
+function getAncestors($categoryId, $categoryTable): array
+{
+	$parentIds  = [];
+	foreach ($categoryTable as $item) {
+		if ($item['id'] == $categoryId && $item['pid'] != 0) {
+			$parentIds[] = $item['pid'];
+			// 递归调用自身，将父类ID作为参数传入
+			$newParentIds = getAncestors($item['pid'],$categoryTable);
+			$parentIds = array_merge($parentIds, $newParentIds);
+		}
+	}
+	
+	return $parentIds ;
+}
+
 //数据唯一编码
 function data_unique_code($str): string
 {