Rather, thanks Samuel Loury! :)

Good to know great Sam's exist that like Emacs out there ;)

I tried it today, and this totally worked in my config.

Thanks a ton for this, very cool function, and SUPER useful for me as I mark stuff as 'DONE' a ton within my workflow for tickets at work.

Thanks again!

Sam

On Sat, Dec 11, 2021, at 12:51 PM, Samuel Banya wrote:
> Hey Konibunix!
> 
> Thanks a ton for this, this looks fun as heck to implement :)
> 
> I'll have to try this on my config sometime next week. Thanks a ton for this, bookmarking this post for now.
> 
> Love it :)
> 
> On Sat, Dec 11, 2021, at 7:49 AM, Samuel Loury wrote:
>> "Samuel Banya" <sbanya@fastmail.com> writes:
>> 
>> > I often change states of my todo list items to 'DONE', 'CANCELLED', etc.
>> >
>> > However, one thing I would want to know is this:
>> > - Is it possible to automatically delete the '#' priority value of a task after a task has been marked as 'DONE', 'CANCELLED', etc?
>> >
>> > Is this done via a hook function?
>> 
>> To do it globally:
>> 
>> --8<---------------cut here---------------start------------->8---
>> (defun my/org-trigger-hook (change-plist)
>>   (let* ((type (plist-get change-plist :type))
>>          (pos (plist-get change-plist :position))
>>          (from (substring-no-properties (or (plist-get change-plist :from) "")))
>>          (to (substring-no-properties (or (plist-get change-plist :to) "")))
>>          )
>>     (when (and
>>            (eq type 'todo-state-change)
>>            (member to org-done-keywords)
>>            (member from org-not-done-keywords)
>>            )
>>       (org-priority (string-to-char " "))
>>       )
>>     )
>>   )
>> 
>> (add-hook #'org-trigger-hook
>>           #'my/org-trigger-hook)
>> --8<---------------cut here---------------end--------------->8---
>> 
>> 
>> But if, like me, you want to define this behavior per task, this is one
>> of the purposes of org-edna. I suggest you try it.
>> 
>> I your particular example, you would simply set the TRIGGER property of
>> the task for which you want to delete the priority to this content
>> 
>> --8<---------------cut here---------------start------------->8---
>> * NEXT [#B] some task
>> :PROPERTIES:
>> :TRIGGER: self() set-priority!(" ")
>> :END:
>> --8<---------------cut here---------------end--------------->8---
>> 
>> Closing it would result in
>> 
>> --8<---------------cut here---------------start------------->8---
>> * DONE some task
>>   CLOSED: [2021-12-11 Sat 13:38]
>> :PROPERTIES:
>> :TRIGGER: self() set-priority!(" ")
>> :END:
>> --8<---------------cut here---------------end--------------->8---
>> 
>> Of course, it also work for repeated task or any complicated scenario
>> I have tried so far.
>> 
>> I hope that helps,
>> -- 
>> Konubinix
>> GPG Key    : 7439106A
>> Fingerprint: 5993 BE7A DA65 E2D9 06CE  5C36 75D2 3CED 7439 106A
>> 
>> 
>> *Attachments:*
>>  * signature.asc
>