demo: user_id cannot be modified

Author: zhangchunlin

demo/apps/tables/settings.ini

@@ -9,7 +9,7 @@ moment = {
     ],
     "viewedit_fields" : [
         {"title":"#","key":"id","editable":False},
-        {"title":"User id","key":"user_id"},
+        {"title":"User id","key":"user_id","editable":False},
         {"title":"Date","key":"date","editable":False},
         {"title":"Content","key":"content","type":"textarea"},
     ],
@@ -27,7 +27,7 @@ comment = {
     ],
     "viewedit_fields" : [
         {"title":"#","key":"id","editable":False},
-        {"title":"User id","key":"user_id"},
+        {"title":"User id","key":"user_id","editable":False},
         {"title":"To id","key":"to_id","editable":False},
         {"title":"Moment id","key":"moment_id","editable":False},
         {"title":"Date","key":"date","editable":False},