* How to execute Lisp code /after/ a capture template has been filled before it is finalized?
@ 2023-12-23 17:38 Tim Landscheidt
2023-12-23 18:11 ` Ihor Radchenko
0 siblings, 1 reply; 3+ messages in thread
From: Tim Landscheidt @ 2023-12-23 17:38 UTC (permalink / raw)
To: emacs-orgmode
Hi,
I (want to) have a capture template that fills a table and
then (re-)calculates a cell based on a formula (and aligns
the table):
| - Note taken on %U \\\\
| | Coin | Count
| |-------+--------|
| | 0.01 | %^{Number of € 0.01 coins|0} |
| | 0.02 | %^{Number of € 0.02 coins|0} |
| | 0.05 | %^{Number of € 0.05 coins|0} |
| | 0.10 | %^{Number of € 0.10 coins|0} |
| | 0.20 | %^{Number of € 0.20 coins|0} |
| | 0.50 | %^{Number of € 0.50 coins|0} |
| | 1.00 | %^{Number of € 1.00 coins|0} |
| | 2.00 | %^{Number of € 2.00 coins|0} |
| |-------+--------|
| | | |
| #+TBLFM: @>$>=(@I$1..@II$1)*(@I$2..@II$2)
If I naively append "%(org-table-recalculate t)" to that
template, the expression gets evaluated immediately when I
start the capture and the text:
| %![Error: (user-error Not at a table)]
gets appended to the capture buffer /before/ I get prompted
for the first field.
Looking at the hooks for org-capture-mode, I also thought
about recalculating the table at finalizing the capture (*1)
and tried:
| %(progn (message "org-capture-prepare-finalize-hook = %S" org-capture-prepare-finalize-hook) (add-hook 'org-capture-prepare-finalize-hook (lambda nil (message "Hook called.")) 0 t) (message "org-capture-prepare-finalize-hook = %S" org-capture-prepare-finalize-hook) "")
but to my surprise, org-capture-prepare-finalize-hook is nil
prior to the add-hook call, has stored the function after
the add-hook call, but in the interactive capture buffer is
nil again (and no message is printed in *Messages*).
How can I evaluate Lisp code after all prompts have been
answered?
TIA,
Tim
(*1) I would prefer not doing this, as in this case I
could not see the result prior to finalizing.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: How to execute Lisp code /after/ a capture template has been filled before it is finalized?
2023-12-23 17:38 How to execute Lisp code /after/ a capture template has been filled before it is finalized? Tim Landscheidt
@ 2023-12-23 18:11 ` Ihor Radchenko
2023-12-24 13:16 ` Tim Landscheidt
0 siblings, 1 reply; 3+ messages in thread
From: Ihor Radchenko @ 2023-12-23 18:11 UTC (permalink / raw)
To: Tim Landscheidt; +Cc: emacs-orgmode
Tim Landscheidt <tim@tim-landscheidt.de> writes:
> I (want to) have a capture template that fills a table and
> then (re-)calculates a cell based on a formula (and aligns
> the table):
> ...
> If I naively append "%(org-table-recalculate t)" to that
> template, the expression gets evaluated immediately when I
> start the capture and the text:
>
> | %![Error: (user-error Not at a table)]
>
> gets appended to the capture buffer /before/ I get prompted
> for the first field.
>
> Looking at the hooks for org-capture-mode, I also thought
> about recalculating the table at finalizing the capture (*1)
> and tried:
> | %(progn (message "org-capture-prepare-finalize-hook = %S" org-capture-prepare-finalize-hook) (add-hook 'org-capture-prepare-finalize-hook (lambda nil (message "Hook called.")) 0 t) (message "org-capture-prepare-finalize-hook = %S" org-capture-prepare-finalize-hook) "")
%(...) expansion is executed _before_ capture template is fully
calculated. It is generally not designed to side-effect functions.
You can instead use template-local hooks, introduced in Org 9.6. See
https://git.savannah.gnu.org/cgit/emacs/org-mode.git/tree/etc/ORG-NEWS#n1270
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: How to execute Lisp code /after/ a capture template has been filled before it is finalized?
2023-12-23 18:11 ` Ihor Radchenko
@ 2023-12-24 13:16 ` Tim Landscheidt
0 siblings, 0 replies; 3+ messages in thread
From: Tim Landscheidt @ 2023-12-24 13:16 UTC (permalink / raw)
To: Ihor Radchenko; +Cc: emacs-orgmode
Ihor Radchenko <yantar92@posteo.net> wrote:
> […]
> %(...) expansion is executed _before_ capture template is fully
> calculated. It is generally not designed to side-effect functions.
> You can instead use template-local hooks, introduced in Org 9.6. See
> https://git.savannah.gnu.org/cgit/emacs/org-mode.git/tree/etc/ORG-NEWS#n1270
I'm using Emacs 28.3, so that is something for the future.
But your pointer made me read the source and adjust my men-
tal picture: I had always thought that capturing opened a
window showing a narrowed section of the buffer, invoked
org-capture-mode-hook, then inserted the template and went
on from there.
Instead (CMIIW), the template is evaluated in a temporary
buffer, the result is pasted in the capture buffer, and then
org-capture-mode-hook is invoked. That means inter alia
that org-capture-mode-hook can work on the "completed" tem-
plate.
For my problem, I thus first (partly) replicated Org 9.6's
behaviour by adding:
| (lambda nil
| (if
| (version< org-version "9.6")
| (let
| ((hook
| (org-capture-get :hook)))
| (if
| (functionp hook)
| (funcall hook)
| (mapc #'funcall hook)))))
to org-capture-mode-hook.
Then I thought about using org-table-map-tables to call
org-table-recalculate on all tables in the capture buffer to
avoid having to figure out where my table was. But
org-table-map-tables unfortunately widens the buffer before
iterating, so this was no option.
Therefore, to keep it simple, I amended my template by add-
ing "%?" to the cell where the sum is put in and setting the
:hook property to org-table-recalculate. (I also added
";%.2f" to the formula for formatting.) In the end, this
works very nicely.
Thanks!
Tim
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-12-23 17:38 How to execute Lisp code /after/ a capture template has been filled before it is finalized? Tim Landscheidt
2023-12-23 18:11 ` Ihor Radchenko
2023-12-24 13:16 ` Tim Landscheidt
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