Repeated teaching classes and stopping date

Repeated teaching classes and stopping date

[Xavier Garrido]

Dear Orgers,

I'm trying to move to =org-agenda= and I'm converting some of my Google 
Calendar entries into Org agenda entries. I'm facing an issue with 
repeated tasks and how to properly stop the event. Consider the 
following entry :

* [Master 1] Nuclear & particle class
<2015-01-21 mer. 14:00-16:00 +1w>--<2015-03-22 dim.>

For me it means, I will teach every week @ 14:00 to 16:00 until the 22th 
of March. I am surely doing something bad since the events actually 
appear every day until the 22th of March. It basically works when I 
remove the --<2015-03-22 dim.> but then how to stop the repeated tasks.

Sorry if the answer is obvious but I have read org-mode manual 
(http://orgmode.org/manual/Repeated-tasks.html) and other "timestamp" 
related pages and I didn't find a way to do that.

Thanks for your help,
Xavier

Re: Repeated teaching classes and stopping date

[Rasmus]

Hi Xavier,

Xavier Garrido <xavier.garrido@gmail.com> writes:

> I'm trying to move to =org-agenda= and I'm converting some of my
> Google Calendar entries into Org agenda entries. I'm facing an issue
> with repeated tasks and how to properly stop the event. Consider the
> following entry :
>
> * [Master 1] Nuclear & particle class
> <2015-01-21 mer. 14:00-16:00 +1w>--<2015-03-22 dim.>
>
> For me it means, I will teach every week @ 14:00 to 16:00 until the
> 22th of March. I am surely doing something bad since the events
> actually appear every day until the 22th of March. It basically works
> when I remove the --<2015-03-22 dim.> but then how to stop the
> repeated tasks.
>
> Sorry if the answer is obvious but I have read org-mode manual
> (http://orgmode.org/manual/Repeated-tasks.html) and other "timestamp"
> related pages and I didn't find a way to do that.

Did you check `org-class'?  Also check
`org-clone-subtree-with-time-shift'.  If you search for the latter you
will find a recent discussion on what I think is the topic you are
interested in.

Hope it helps,
Rasmus

-- 
Evidence suggests Snowden used a powerful tool called monospaced fonts

Re: Repeated teaching classes and stopping date

[Xavier Garrido]

Hi Rasmus,

Le 10/11/2014 18:37, Rasmus a écrit :
> Hi Xavier,
>
> Xavier Garrido <xavier.garrido@gmail.com> writes:
>
>> I'm trying to move to =org-agenda= and I'm converting some of my
>> Google Calendar entries into Org agenda entries. I'm facing an issue
>> with repeated tasks and how to properly stop the event. Consider the
>> following entry :
>>
>> * [Master 1] Nuclear & particle class
>> <2015-01-21 mer. 14:00-16:00 +1w>--<2015-03-22 dim.>
>>
>> For me it means, I will teach every week @ 14:00 to 16:00 until the
>> 22th of March. I am surely doing something bad since the events
>> actually appear every day until the 22th of March. It basically works
>> when I remove the --<2015-03-22 dim.> but then how to stop the
>> repeated tasks.
>>
>> Sorry if the answer is obvious but I have read org-mode manual
>> (http://orgmode.org/manual/Repeated-tasks.html) and other "timestamp"
>> related pages and I didn't find a way to do that.
>
> Did you check `org-class'?  Also check
> `org-clone-subtree-with-time-shift'.  If you search for the latter you
> will find a recent discussion on what I think is the topic you are
> interested in.
>

Thanks for the hints, I should have read the FAQ first since my problem 
is clearly addressed (here for example 
http://orgmode.org/worg/org-faq.html#diary-sexp-in-org-files). In SO 
this guy also have the same problem 
http://stackoverflow.com/questions/2464598/org-mode-schedule-weekly-event-for-a-period

I will try to slightly modify the ical2org.awk file from Eric Fraga 
http://orgmode.org/worg/code/awk/ical2org.awk to automatically converts 
ical file into org and to manage this repeating task. I have to say that 
it is a bit frustrating that the syntax <YYYY-MM-DD +1w>--<YYYY-MM-DD> 
is not working because it is pretty simple and quite elegant.

Cheers,
Xavier
> Hope it helps,
> Rasmus
>

-- 

   |
   |__     GARRIDO Xavier       Laboratoire de l'Accélérateur Linéaire
    /\     NEMO                 Université Paris-Sud 11
   /--\    garrido@lal.in2p3.fr UMR 8607
   |       garrido@in2p3.fr     Batiment 200
   |__     +33 1.64.46.84.28    91898 Orsay Cedex, France

Re: Repeated teaching classes and stopping date

[Rasmus]

Xavier Garrido <garrido@lal.in2p3.fr> writes:

> Hi Rasmus,
>
> Le 10/11/2014 18:37, Rasmus a écrit :
>> Hi Xavier,
>>
>> Xavier Garrido <xavier.garrido@gmail.com> writes:
>>
>>> I'm trying to move to =org-agenda= and I'm converting some of my
>>> Google Calendar entries into Org agenda entries. I'm facing an issue
>>> with repeated tasks and how to properly stop the event. Consider the
>>> following entry :
>>>
>>> * [Master 1] Nuclear & particle class
>>> <2015-01-21 mer. 14:00-16:00 +1w>--<2015-03-22 dim.>
>>>
>>> For me it means, I will teach every week @ 14:00 to 16:00 until the
>>> 22th of March. I am surely doing something bad since the events
>>> actually appear every day until the 22th of March. It basically works
>>> when I remove the --<2015-03-22 dim.> but then how to stop the
>>> repeated tasks.
>>>
>>> Sorry if the answer is obvious but I have read org-mode manual
>>> (http://orgmode.org/manual/Repeated-tasks.html) and other "timestamp"
>>> related pages and I didn't find a way to do that.
>>
>> Did you check `org-class'?  Also check
>> `org-clone-subtree-with-time-shift'.  If you search for the latter you
>> will find a recent discussion on what I think is the topic you are
>> interested in.
>>
>
> Thanks for the hints, I should have read the FAQ first since my
> problem is clearly addressed (here for example
> http://orgmode.org/worg/org-faq.html#diary-sexp-in-org-files). In SO
> this guy also have the same problem
> http://stackoverflow.com/questions/2464598/org-mode-schedule-weekly-event-for-a-period

They also point to `org-class` in one of the answers.  

> I will try to slightly modify the ical2org.awk file from Eric Fraga
> http://orgmode.org/worg/code/awk/ical2org.awk to automatically
> converts ical file into org and to manage this repeating task. 

If you want...  There are already two functions that were created for
this stuff. 

> I have to say that it is a bit frustrating that the syntax <YYYY-MM-DD
> +1w>--<YYYY-MM-DD> is not working because it is pretty simple and
> quite elegant.

Patch welcome!  I can see the syntax being somewhat intuitive, but I
think maybe the double use of "--" is confusing.  Why not:

      <YYYY-MM-DD> +1w> until <yyyy-mm-dd>

Anyway. . .

Cheers,
Rasmus

-- 
Bang bang

Re: Repeated teaching classes and stopping date

[Karl Voit]

Hi Xavier!

* Xavier Garrido <garrido@lal.in2p3.fr> wrote:
> Hi Rasmus,
>
> Le 10/11/2014 18:37, Rasmus a écrit :
>> Hi Xavier,
>>
>> Xavier Garrido <xavier.garrido@gmail.com> writes:
>>
>>> * [Master 1] Nuclear & particle class
>>> <2015-01-21 mer. 14:00-16:00 +1w>--<2015-03-22 dim.>
>
> I will try to slightly modify the ical2org.awk file from Eric Fraga 
> http://orgmode.org/worg/code/awk/ical2org.awk to automatically converts 
> ical file into org and to manage this repeating task. I have to say that 
> it is a bit frustrating that the syntax <YYYY-MM-DD +1w>--<YYYY-MM-DD> 
> is not working because it is pretty simple and quite elegant.

I was there as well[1].

Meanwhile, I prefer the clone-method because I am able to
cancel/annotate single events pretty elegant which would not be
possible with recurring events.

Give it a try :-)

[1]
http://search.gmane.org/?query=org-clone-subtree-with-time-shift+Voit&group=gmane.emacs.orgmode

Re: Repeated teaching classes and stopping date

[James Harkins]

Rasmus <rasmus <at> gmx.us> writes:

> Also check
> `org-clone-subtree-with-time-shift'.

FWIW, I always create a separate subtree, with a single timestamp, for every
class session. Advantages:

- Individual status for each session: DONE, POSTPONED or CANCELED.

- If a single class in a series needs to be rescheduled, it's easy.

- I can add notes under the subtree, to plan for the session or note
important things that happened in class. So then my calendar is not just a
calendar -- it also helps with content organization. (That IMO is the whole
point of org-mode: it's not just a calendar!)

YMMV of course.

hjh

Re: Repeated teaching classes and stopping date

[Samuel Loury]

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Dear all,
James Harkins <jamshark70@qq.com> writes:

> Rasmus <rasmus <at> gmx.us> writes:
>
>> Also check
>> `org-clone-subtree-with-time-shift'.
>
> FWIW, I always create a separate subtree, with a single timestamp, for every
> class session. Advantages:
>
> - Individual status for each session: DONE, POSTPONED or CANCELED.
>
> - If a single class in a series needs to be rescheduled, it's easy.
>
> - I can add notes under the subtree, to plan for the session or note
> important things that happened in class. So then my calendar is not just a
> calendar -- it also helps with content organization. (That IMO is the whole
> point of org-mode: it's not just a calendar!)

I like the idea of `org-clone-subtree-with-time-shift', but wouldn't it
make the parsing of the files slower?

I admit that in the example, this would not have a big impact since
there would be only 9 entries. Nevertheless, I wonder if this can be
considered as a general solution.

In my org files that sum up to 51425 lines (not taking into account the
archives), the creation of the agendas takes minutes to generate. There
are a lot of repeated items with final date¹. I cannot imagine the time
it would take if I would use `org-clone-subtree-with-time-shift'...

My two cents :-)

¹  Like in the case mentioned by Xavier
-- 
Konubinix
GPG Key    : 7439106A
Fingerprint: 5993 BE7A DA65 E2D9 06CE  5C36 75D2 3CED 7439 106A

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Re: Repeated teaching classes and stopping date

[Eric S Fraga]

On Thursday, 13 Nov 2014 at 09:26, Samuel Loury wrote:

[...]

> I like the idea of `org-clone-subtree-with-time-shift', but wouldn't it
> make the parsing of the files slower?

Maybe but O(n)...  I doubt it would make much difference in practice
compared with parsing a complex date structure.

> I admit that in the example, this would not have a big impact since
> there would be only 9 entries. Nevertheless, I wonder if this can be
> considered as a general solution.

It's a solution that works well for the reasons given by others.  I use
it for all of my lectures and it turns out better than a single repeat
directive would because you can annotate each instance separately, not
to mention being able to easily remove lectures that might be cancelled
or change ones that may have a different location or time.  Etc.

> In my org files that sum up to 51425 lines (not taking into account the
> archives), the creation of the agendas takes minutes to generate. There

Minutes!  What version of org and what kind of system?

I have >35k lines in my org agenda files and generating an agenda on a 5
year old system takes seconds.  On my wee Pandora, it takes a minute or
so but this is a very slow system with slow SD cards...

-- 
: Eric S Fraga (0xFFFCF67D), Emacs 24.4.50.1, Org release_8.3beta-558-g83d8a2

Re: Repeated teaching classes and stopping date

[Samuel Loury]

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Eric S Fraga <e.fraga@ucl.ac.uk> writes:

> On Thursday, 13 Nov 2014 at 09:26, Samuel Loury wrote:

[...]

>> In my org files that sum up to 51425 lines (not taking into account the
>> archives), the creation of the agendas takes minutes to generate. There

> Minutes!  What version of org and what kind of system?

Org version 8.2.7c.
The system is a Samsung galaxy S3.
--8<---------------cut here---------------start------------->8---
$ cat /proc/cpuinfo 
Processor       : ARMv7 Processor rev 0 (v7l)
processor       : 0
BogoMIPS        : 1592.52

processor       : 1
BogoMIPS        : 2189.72

processor       : 2
BogoMIPS        : 2189.72

processor       : 3
BogoMIPS        : 1592.52

Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls 
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x3
CPU part        : 0xc09
CPU revision    : 0

Chip revision   : 0011
Hardware        : SMDK4x12
Revision        : 000c
Serial          : cfca7043323016d7
--8<---------------cut here---------------end--------------->8---

With a RAM of 800Mo.

> I have >35k lines in my org agenda files and generating an agenda on a
>5
> year old system takes seconds.  On my wee Pandora, it takes a minute or
> so but this is a very slow system with slow SD cards...

I don't understand how the SD card speed is to be taken into account
since org mode by default loads into emacs (and then in memory) all the
org files prior to computing the agenda.

-- 
Konubinix
GPG Key    : 7439106A
Fingerprint: 5993 BE7A DA65 E2D9 06CE  5C36 75D2 3CED 7439 106A

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Re: Repeated teaching classes and stopping date

[Eric S Fraga]

On Thursday, 13 Nov 2014 at 11:44, Samuel Loury wrote:

[...]

>> Minutes!  What version of org and what kind of system?
>
> Org version 8.2.7c.
> The system is a Samsung galaxy S3.

Ah, interesting.  Yes, not a terribly fast system so probably eplains
your performance issues.  Mind you, more than twice as fast as my
pandora :) :

Processor	: ARMv7 Processor rev 3 (v7l)
BogoMIPS	: 795.51
Features	: swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls 

I do periodically go through and archive sections of my org files to
keep the times bearable on the pandora and I use sticky agenda views to
help avoid unnecessary regeneration. 

> I don't understand how the SD card speed is to be taken into account
> since org mode by default loads into emacs (and then in memory) all the
> org files prior to computing the agenda.

Are you sure?  I had the impression that my org files were not accessed
until I asked for the agenda.  But maybe they are in which case you are
correct that the SD card doesn't matter.

-- 
: Eric S Fraga (0xFFFCF67D), Emacs 24.4.1, Org release_8.3beta-558-g83d8a2

Re: Repeated teaching classes and stopping date

[Samuel Loury]

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Eric S Fraga <e.fraga@ucl.ac.uk> writes:

> On Thursday, 13 Nov 2014 at 11:44, Samuel Loury wrote:
>

[...]

> and I use sticky agenda views to help avoid unnecessary regeneration.

Wow, sticky agenda views are cool!

>> I don't understand how the SD card speed is to be taken into account
>> since org mode by default loads into emacs (and then in memory) all the
>> org files prior to computing the agenda.
>
> Are you sure?  I had the impression that my org files were not accessed
> until I asked for the agenda.  But maybe they are in which case you are
> correct that the SD card doesn't matter.

Actually, the first agenda generation appears to load all the buffers
and next generations only use the existing buffers.

Therefore, the SD card matters indeed for the first generation.

-- 
Konubinix
GPG Key    : 7439106A
Fingerprint: 5993 BE7A DA65 E2D9 06CE  5C36 75D2 3CED 7439 106A

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Re: Repeated teaching classes and stopping date

[Eric S Fraga]

On Friday, 14 Nov 2014 at 10:42, Samuel Loury wrote:
> Eric S Fraga <e.fraga@ucl.ac.uk> writes:
>
>> On Thursday, 13 Nov 2014 at 11:44, Samuel Loury wrote:
>>
>
> [...]
>
>> and I use sticky agenda views to help avoid unnecessary regeneration.
>
> Wow, sticky agenda views are cool!

Indeed!  And essential for org on slow devices and large files.

-- 
: Eric S Fraga (0xFFFCF67D), Emacs 25.0.50.1, Org release_8.3beta-558-g83d8a2