[Update] 解决授权规则actions字段为空列表或只填一个action的问题 (#2888)

* [Update] 解决授权规则actions字段为空列表或只填一个action的问题

* [Update] Action NO改为NULL

* [Update] Action NULL改为NONE

apps/perms/models/asset_permission.py

@@ -16,6 +16,7 @@ __all__ = [
 
 
 class Action:
+    NONE = 0
     CONNECT = 0b00000001
     UPLOAD = 0b00000010
     DOWNLOAD = 0b00000100
@@ -51,12 +52,15 @@ class Action:
 
     @classmethod
     def choices_to_value(cls, value):
+        if not value:
+            return cls.NONE
+        if len(value) == 1:
+            return cls.NAME_MAP_REVERSE.get(value[0], cls.NONE)
+
         def to_choices(x, y):
-            x = cls.NAME_MAP_REVERSE.get(x, 0)
-            y = cls.NAME_MAP_REVERSE.get(y, 0)
+            x = cls.NAME_MAP_REVERSE.get(x, cls.NONE)
+            y = cls.NAME_MAP_REVERSE.get(y, cls.NONE)
             return x | y
-        if not value:
-            return None
         return reduce(to_choices, value)
 
     @classmethod