Re: *** BULK *** Re: How to set priority of a heading with the highest one among its children

[DEBRY . Edouard]

Here is something working, probably not yet all cases proof

(defun local/set-priority1 ()
  (org-with-wide-buffer
   (when (org-goto-first-child)
     (let ((ls (remove nil (cl-loop collect (local/set-priority1) while 
(org-goto-sibling)))))
       (outline-up-heading 1)
       (if ls (org-priority (seq-min ls)))))
   (if (eq 'todo (org-element-property :todo-type (org-element-at-point)))
       (string-to-number (org-entry-get nil "PRIORITY")))))

(defun local/set-priority2 ()
  (save-excursion
    (outline-up-heading (- (org-element-property :level (org-element-at-point)) 
1))
    (local/set-priority1)))


Ihor Radchenko <yantar92@posteo.net> writes:

> -------------------------------------------------------------------------------------------------------------------------------------------------------------------
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> -------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Edouard Debry <edouard.debry@gmail.com> writes:
>
>> But this involves org skills a bit beyond my understanding, I wonder if you 
>> could give
>> me some piece of advices on how to do that :
>> - is there a suitable hook for this function ?
>
> No hook, but you can advice `org-priority' using :after advice.
>
>> - when in a given tree, how can I select the top level heading ?
>
> (while (org-up-heading-safe))
>
> Try to play with this using M-: with point at different headings.
>
>> - when at a given heading, how can I change programmatically the priority ?
>
> (org-priority 1), for example.
>
>> For this latter question, I tried (org-entry-put nil "PRIORITY" "2"), but it 
>> replied that
>>
>>  org-priority: Priority must be between ‘0’ and ‘5’
>
> That's because `org-entry-put' converts the argument into number,
> assuming a single-character string like "A". This is probably a bug.

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