[Update] 解决用户授权资产/节点为空时，前端构建资产授权树的bug (#2874)

* [Update] 解决用户授权资产/节点为空时，前端构建资产授权树的bug

* [Update] 如果用户授权节点为空，返回时添加空节点

apps/perms/api/user_permission.py

@@ -299,12 +299,14 @@ class UserGrantedNodeAssetsApi(UserPermissionCacheMixin, AssetsFilterMixin, List
         nodes = util.get_nodes_with_assets()
         if str(node_id) == const.UNGROUPED_NODE_ID:
             node = util.tree.ungrouped_node
+        elif str(node_id) == const.EMPTY_NODE_ID:
+            node = util.tree.empty_node
         else:
             node = get_object_or_404(Node, id=node_id)
         if node == util.tree.root_node:
             assets = util.get_assets()
         else:
-            assets = nodes.get(node, [])
+            assets = nodes.get(node, {})
         for asset, system_users in assets.items():
             asset.system_users_granted = system_users
 

apps/perms/const.py

@@ -2,3 +2,4 @@
 #
 
 UNGROUPED_NODE_ID = "00000000-0000-0000-0000-000000000002"
+EMPTY_NODE_ID = "00000000-0000-0000-0000-000000000003"

apps/perms/utils/asset_permission.py

@@ -109,6 +109,13 @@ class GenerateTree:
         self._ungroup_node = node
         return node
 
+    @property
+    def empty_node(self):
+        node_id = const.EMPTY_NODE_ID
+        value = _('Empty')
+        node = Node(id=node_id, value=value)
+        return node
+
     #@timeit
     def add_assets_without_system_users(self, assets):
         for asset in assets:
@@ -176,6 +183,9 @@ class GenerateTree:
         for node, values in self.nodes.items():
             node._assets_amount = values["assets_amount"]
             nodes[node] = {asset: self.assets.get(asset, {}) for asset in values["assets"]}
+        # 如果返回空节点，页面构造授权资产树报错
+        if not nodes:
+            nodes[self.empty_node] = {}
         self._nodes_with_assets = nodes
         return dict(nodes)