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From: John Kitchin <jkitchin@andrew.cmu.edu>
To: Xebar Saram <zeltakc@gmail.com>
Cc: Dave Marquardt <davemarq@us.ibm.com>, org mode <emacs-orgmode@gnu.org>
Subject: Re: Auto insert and change date in header?
Date: Sat, 01 Aug 2015 12:05:12 -0400	[thread overview]
Message-ID: <m24mkj0zbb.fsf@andrew.cmu.edu> (raw)
In-Reply-To: <CAOQHXPpPM_OM9ZDUoLtWkoud6qHP_Gy6Zaihs9kazXnvHXh-7g@mail.gmail.com>


This seems to do what you want for the changes. The timestamp is
automatically added when you make changes. It does not propagate
timestamps up though, so if you change a subheading the timestamp there
is updated, but the one in the parent for example. also, this will
update every headline.

You may need to add another (add-hook 'org-mode-hook (lambda ()
(add-to-list 'after-change-functions 'update-last-edited))) kind of line
to enable this in all org-files, the code below might be buffer local.

#+BEGIN_SRC emacs-lisp
(defun update-last-edited (beg end length)
  (when
      (and
       (not (org-before-first-heading-p))
       (org-get-heading))
    (org-entry-put nil "LAST-EDITED" (format-time-string "[%Y-%m-%d %a %H:%M:%S]"))))

(add-to-list 'after-change-functions 'update-last-edited)
#+END_SRC



Xebar Saram writes:

> Hi all
>
> coming back to it after 3 years :)
>
> im wondering if anyone has a hook or anything like that that auto adds a
> date when he creates a header. and maybe also auto change the date each
> time  the text under the header is changed? kind of simulating a timestamp
> type function :)
>
> best
>
> Z
>
> On Fri, Jul 26, 2013 at 11:49 PM, Dave Marquardt <davemarq@us.ibm.com>
> wrote:
>
>> Xebar Saram <zeltakc@gmail.com> writes:
>>
>> > does any one know of a way to auto insert/change the date in each
>> sections
>> > header when the section is edited?IE have a date in the header showing
>> > last edited date.
>> > Is this technically possible?
>>
>> Try setting before-save-hook.  See "(elisp) Saving Buffers".
>>
>> -Dave
>>
>>
>>

--
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu

next prev parent reply	other threads:[~2015-08-01 16:05 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-25  0:30 Auto insert and change date in header? Xebar Saram
2013-07-26 20:49 ` Dave Marquardt
2015-08-01 14:45   ` Xebar Saram
2015-08-01 16:05     ` John Kitchin [this message]
2015-08-02 18:34       ` Xebar Saram
2015-08-03  0:09         ` John Kitchin

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