Re: Capture Template Diary Entry: file+datetree+prompt use the prompted timestamp including the time when time is specified

[Kyle Meyer]

Nils Schween writes:

> ("d" "Diary entry" entry (file+datetree+prompt 
> "~/MPIK-Nextcloud/emacs/.org/kalender.org")
>                     "* %i%?\n  %T")
>
> And it works as expected: When calling the capture template, I am prompted 
> for a
> date and I can also type a time, and on saving everything is stored at the
> correct location in the datetree. Perfect. But in case I do not enter a time,
> 00:00 is inserted. This is unfortunate. Okay, I can replace "%T" in the 
> template
> with "%t", but then any specification of time is ignored.
>
> Instead, I would love to mimic the behaviour of the function 
> "org-time-stamp". Calling it
> prompts for a date, and if I do not specify a time, only the date is inserted.
> In case I specify a time or a range (i.e. 10:00-12:00) the timestamp is
> supplemented with this additional information.
>
> I tried a lot to get the desired behaviour by testing variants of the 
> following
> combination of org-mode functions and variables.
> %(org-insert-time-stamp (org-read-date nil t org-read-date-final-answer) t)
>
> I was not able to produce what I wanted.
>
> Does anyone have a workaround or an idea how I could implement the described 
> and
> wished behaviour? Thanks.

I'm not aware of any built-in way to do what you want.  For either
implementing or working around, org-capture-set-target-location and
org-capture-fill-template are the two places you'd probably want to
look.  As a start of a hacky workaround, with an entry like

    ("d" "Diary entry" entry (file+datetree "/tmp/scratch.org")
     "* %i%?\n  %T" :time-prompt t)

you should be able to get the time/no time behavior you're after with

    (advice-add 'org-capture-fill-template :around
                (lambda (fn &optional template &rest args)
                  (let ((template (and (not org-time-was-given)
                                       (replace-regexp-in-string
                                        "%T" "%t"
                                        (org-capture-get :template) t))))
                    (apply fn template args)))
                '((name . "org-capture-hack")))