Activities: Scheduler

Maintained by Picture of Henning Bostelmann Henning Bostelmann
An appointment scheduler for planning face-to-face meetings between teachers and students. Teachers can set up time slots, and students can choose one of these on Moodle.
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Moodle 2.0, 2.1, 2.2

The Scheduler module helps you in scheduling appointments with your students. Teachers specify time slots for meetings, students then choose one of them on Moodle. Teachers in turn can record the outcome of the meeting - and optionally a grade - within the scheduler.

Group scheduling is supported; that is, each time slot can accomodate several students, and optionally it is possible to schedule appointments for entire groups at the same time.

Please note that minor updates to this module will normally be released on github only.

For help and discussion about the module, please use the Scheduler forum on

For an earlier version supporting Moodle up to release 1.9, see the Scheduler 1.9 module.


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Picture of Henning Bostelmann
Henning Bostelmann (Lead maintainer)
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  • Lina
    Fri, 8 Jul 2016, 3:06 PM
    Hi Henning,
    I'm sorry that our mail server has blocked your private email, so I didn't receive that email in time. Sorry for the inconvenience this caused. Thanks a lot for your prompt reply.
    The Scheduler plugin is one of the most popular activities to our teachers and students. Our teachers will provide guidance description for the students to read before they start to book appointments. For example, our Language Centre will provide one to one tutorial for students and usually, it will be many different scheduler activities open for students to book different appointments. So the description is frequently used. If we can search the title and description of the scheduler activity, it will be easier for students to find the right topic they want to book. Also for teachers, it will be easier to manage the schedulers by search the key word in the title or description.
    We will be really looking forward to your new release with the global search feature.
    Best wishes,
  • Picture of Henning Bostelmann
    Thu, 14 Jul 2016, 12:40 AM
    Hi Lina
    Just to say that the search functionality for Scheduler titles/descriptions is now included in the master branch on github and will be released as part of Scheduler 3.1, expected in August or September.
  • Lina
    Thu, 14 Jul 2016, 11:57 AM
    Hi Henning,
    Thanks a lot for your great help. I'll be looking forward to the release of Scheduler 3.1.
    Best wishes,
  • Picture of Donna Lee
    Mon, 12 Sep 2016, 5:32 AM
    Hi Henning,

    This is a really great plugin and is working great except for one issue that I'm not sure how to handle.

    Is there any possibility that you could add an option to limit the number of appointments within a given day, but still giving a range of appointment times above that limit?

    For example, I want to schedule my students between 12pm and 6pm Monday through Friday in 20 minute increments and 30 minutes between each time slot. I would like them to have the choice of any of those 20 minute time slots within that time frame, but I want to limit the appointments to only 3 students per day, therefore only taking up 3 time slots out of the 7 that are created for any given day. After 3 are filled, I would like it to cancel the rest of the time slots.

    Is this possible?
  • Picture of frank weissman
    Mon, 26 Sep 2016, 7:37 PM
    Dear Henning,
    With great joy we use the schedule plugin. This helps to let our students be responsible for their own participation. However I encountered a problem.

    I am not sure yet if it is the template, or the plugin. But after a teacher created time slots, it becomes impossible for him to add new time slots until he deleted the time slots or all time slots are expired . I will test the issue also with a different theme (we use the essential theme).

    Moodle 2.9.6
    latest PHP

    Frank Weissman
  • Picture of Henning Bostelmann
    Tue, 27 Sep 2016, 1:04 AM
    Dear Frank, I'm not quite sure about the problem, and have never seen this before. When you say "it becomes impossible from him to add new time slots", do you mean that the "Add slots" button is no longer being displayed, or is there any other error message? If you can reproduce the problem, it might be best to open a ticket on the Moodle tracker ( where I can follow this up further.
  • Picture of Amr Al Kudeh
    Wed, 5 Apr 2017, 7:17 PM
    Hi Heinning,
    Many thanks for this great plugin.

    I just wanna share with you a small bug while i was testing the plugin under Moodle 3.2.2 on LinuxMint 17.3 and PHP 5.6.

    I added some slots, and then i wanted to delete them.

    The thing is, when i choosed (Delete slots -> Delete selected slots) without selecting any of the slots, i got an error and then redirected to the main page of the course.

    I would be very greatful if you can help me with this.

    Thank you in advance for your help


  • Picture of Henning Bostelmann
    Tue, 11 Apr 2017, 11:41 PM
    Dear Amr, thanks for mentioning this. I have created an entry on the Moodle Tracker (CONTRIB-6857) and hope to get to it soon. Meanwhile, you can work around the problem by selecting one or more slots first.
    Best wishes
  • Picture of Eric Katchan
    Thu, 13 Apr 2017, 12:45 AM
    Hello Henning, We are currently testing an upgrade of our moodle site from 3.0 to 3.2. Our production version of mod_scheduler is 2015102902. I know it is old but...

    I installed the most recent 2016100402 and encountered a databse level error. Since we have not upgraded, the cron is looking to remove old unused slots. In our case it is many thousands. Our database backend is postgres and the query has exceeded 65535 parameters. I have over 250000. Query Fails.

    FROM mdl_scheduler_slots s
    LEFT OUTER JOIN mdl_scheduler_appointment a ON = a.slotid
    WHERE a.studentid IS NULL
    AND starttime < 1492015298

    Do you have any suggestions or more importantly, is the query correct?


  • Picture of Eric Katchan
    Thu, 13 Apr 2017, 10:19 PM
    Hello, Henning as a followup I have modified the purge code slightly. I realize this is a unique occurrance in that there are rarely so many unused slots as the cron runs on a regular basis. But...



    $todelete = $DB->get_records_sql($sql, array($now));
    if ($todelete) {
    $keys = array_keys($todelete);
    $emptyslots = array_chunk($keys , 10000);
    foreach ($emptyslots as $emptyslot) {
    list($usql, $params) = $DB->get_in_or_equal($emptyslot);
    $DB->delete_records_select('scheduler_slots', " id $usql ", $params);

    At least for sites like ours where we are still using the older version, the initial problem will be handled.

  • Picture of Henning Bostelmann
    Fri, 14 Apr 2017, 10:22 PM
    Hello Eric,
    good point. I've now limited the number of slots to be deleted to 1000 at a time. I'm just not sure how this problem has built up - even in earlier versions of Scheduler (back to 1.9 in fact), the cron should have deleted old unused slots periodically. It's just that it has been rewritten in the new version.
    Best wishes
  • Picture of Carl Dennis
    Thu, 27 Apr 2017, 2:54 AM
    Hello Henning,

    We are trying to create a user role that can ONLY see slots and mark students as 'seen'. While we can limit the view well enough, the setting "attend students" (mod/scheduler:attend) does not seem to grant a user the ability to attend students. Instead, I can only see a tickbox image, instead of an actual tickbox.

    Is this a bug, or am I missing a setting?

    Carl D.
  • Picture of Henning Bostelmann
    Thu, 27 Apr 2017, 7:15 AM
    Hello Carl
    This is a bit hard to say without knowing the details of your role, however: The first thing you should check is whether the slots actually "belong" to the user you mention, i.e., whether the user is listed as the "teacher" in the slot. mod/scheduler:attend allows only to edit *one's own* slots, not the slots of other teachers. For marking students as seen on *any* appointment, you would need mod/scheduler:manageallappointments . More details here: .
  • Picture of Carl Dennis
    Thu, 27 Apr 2017, 9:17 AM
    Thank you for the speedy reply, Henning.

    We were hoping to have a 3rd party, like a secretary, be able to mark "attend" for student appointments. This person would only be responsible for marking attend/seen for students, not putting them into a slot. Is it possible to give them "manage attend only" by cutting up some of the mod/scheduler:manageallappointments?

    Thanks for any insights you have!
  • Picture of Henning Bostelmann
    Thu, 27 Apr 2017, 5:15 PM
    Hello Carl,
    no, that's not possible with the current version of Scheduler. I think the best option would be to give the secretary the "mod/scheduler:manageallappointments" capability, and instruct her to mark students as attended but make no other changes. (It's fairly hard to make other modifications by mistake.)
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