修复用户组编辑导致该用户组都丢失问题

juser/views.py

@@ -6,7 +6,7 @@
 # from Crypto.PublicKey import RSA
 import uuid
 from django.contrib.auth.decorators import login_required
-
+from django.shortcuts import get_object_or_404
 from django.db.models import Q
 from juser.user_api import *
 from jperm.perm_api import get_group_user_perm
@@ -111,22 +111,18 @@ def group_edit(request):
             if len(UserGroup.objects.filter(name=group_name)) > 1:
                 raise ServerError(u'%s 用户组已存在' % group_name)
             # add user group
+            user_group = get_object_or_404(UserGroup, id=group_id)
+            user_group.user_set.clear()
+
             for user in User.objects.filter(id__in=users_selected):
                 user.group.add(UserGroup.objects.get(id=group_id))
-            # delete user group
+
-            user_group = UserGroup.objects.get(id=group_id)
-            for user in [user for user in User.objects.filter(group=user_group) if user not in User.objects.filter(id__in=users_selected)]:
-                user_group_all = user.group.all()
-                user.group.clear()
-                for g in user_group_all:
-                    if g == user_group:
-                        continue
-                    user.group.add(g)
             user_group.name = group_name
             user_group.comment = comment
             user_group.save()
         except ServerError, e:
             error = e
+
         if not error:
             return HttpResponseRedirect(reverse('user_group_list'))
         else: