# Bug: system.tag.queryTagCalculations() doesn't accept relative tag path for UDT **URL:** \ **Category:** Ignition\ **Created:** [March 10, 2023, 8:53am UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892 "2023-03-10T08:53:59Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\ **Post date:** [March 10, 2023, 8:53am UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/1 "2023-03-10T08:53:59Z")
I use the {PathToParentFolder} in the UDT's tag change script to access the full path of the UDT instance but this doesn't return the tag provider in the return path. Is this a bug? So I wonder how can I get access full path of the UDT instance in the tag change script. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [March 10, 2023, 9:18am UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/2 "2023-03-10T09:18:06Z")
UDTs are in the same provider as instances, so it doesn't seem to be a bug. ---
**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\ **Post date:** [March 10, 2023, 10:43am UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/3 "2023-03-10T10:43:45Z")
I know that what I'm asking is about the returning the tag provider with the path. I want to see this: [Default]Pump1/Run But it return this: Pump1/Run ---
**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\ **Post date:** [March 10, 2023, 12:50pm UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/4 "2023-03-10T12:50:01Z")
Not sure who I stole this from, but I use this if I need the provider in a UDT. Below script on value change for element named `TagProvider`. ```auto def valueChanged(tag, tagPath, previousValue, currentValue, initialChange, missedEvents): providerName = tagPath[tagPath.find("[")+1:tagPath.find("]")] system.tag.writeBlocking("[.]TagProvider", providerName) ``` ---
**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\ **Post date:** [March 10, 2023, 2:02pm UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/5 "2023-03-10T14:02:38Z")
Yes, I exactly do this but I believe it is too much expensive to run in a tag change script. I believe IA should provide it {PathToParentFolder} ---
**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\ **Post date:** [March 10, 2023, 2:06pm UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/6 "2023-03-10T14:06:41Z")
I tested with well over 10000 instances and didn't see a noticeable difference. Your post was how to get access, this is the only way I know of. If you want a baked in method, post here, [https://ideas.inductiveautomation.com/](https://ideas.inductiveautomation.com/) ---
**Author:** ![nader.chinichian](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nader.chinichian/32/9261_2.png) [@nader.chinichian](https://forum.inductiveautomation.com/u/nader.chinichian)\ **Post date:** [March 10, 2023, 3:18pm UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/7 "2023-03-10T15:18:14Z")
What I face that I need the provider is the problem in the following code which run in one of the tags in my UDT. I try to use UDT tag wizard reference [.]tagName but it seems the system.tag.queryTagCalculations() function doesn't work with that so I have somehow get the neighbor tag path. I really don't know what is wrong here with using "[.]Online" and why I get Null. ```auto def valueChanged(tag, tagPath, previousValue, currentValue, initialChange, missedEvents): # This code is not working!!! dataset = system.tag.queryTagCalculations(["[.]Online"], ["DurationOn"], startToday, now) # This code is working path = tagPath[0:-6] # I know my tag name is 5 chars so I get rid of it dataset = system.tag.queryTagCalculations([path + "/Online"], ["DurationOn"], startToday, now) ``` ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [March 11, 2023, 11:34am UTC](https://forum.inductiveautomation.com/t/bug-system-tag-querytagcalculations-doesnt-accept-relative-tag-path-for-udt/70892/8 "2023-03-11T11:34:49Z")
> [@nader.chinichian](#): > > it seems the system.tag.queryTagCalculations() function doesn't work with that I think **that** is the bug.