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Activities: Group choice

mod_choicegroup
Maintained by Picture of Nicolas Dunand Nicolas Dunand
This module allows students to enrol themselves in a group within a course. The teacher can select which groups students can chose from and the maximum number of students allowed in each group.
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This module allows students to enrol themselves in a group within a course. The teacher can choose from which groups the students can chose, and the maximum number of students allowed in each group.

Depending on the activity settings, the students can view the members of each group before making a choise, and change their selected group until the deadline.

Potential privacy issues

Depending on settings chosen by a teacher, students may see what groups other users have chosen.

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Contributors

Picture of Nicolas Dunand
Nicolas Dunand (Lead maintainer)
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  • Oam
    Tue, Feb 10, 2015, 10:13 PM
    Hi,

    We installed the lastest version and now we got this error when we try to access to choicegroup activity :
    Fatal error: Call to undefined method cm_info::create() in /moodle/mod/choicegroup/lib.php on line 832

    We are running Moodle 2.7.5 and we found that the create() function does not exist in Moodle 2.7 !
    The function only exists in moodle 2.8.

    You can check this here :
    > http://fossies.org/dox/moodle-2.8.3/classcm__info.html
    "Static Public Member Functions
    static create ($cm, $userid=0)"

    > http://fossies.org/dox/moodle-2.7.5/classcm__info.html
    no create() function

    Can you fix it ? (maybe by creating branchs for each version ?)

    I create an issue : https://github.com/ndunand/moodle-mod_choicegroup/issues/63
  • Picture of Nicolas Dunand
    Thu, Feb 19, 2015, 10:51 PM
    Hi Pascal,

    Sorry about that. I just released a new version taking care of this. The plugin works now as expected on Moodle 2.7 and 2.8.
  • Picture of Nicolas Dunand
    Tue, Feb 24, 2015, 11:20 PM
    Monica,
    Thanks for pointing this out. Indeed, these instructions refer to an older version of the module and have to be updated. I'll correct this for the next release of the plugin.
  • Picture of Carina Martinez
    Fri, Mar 20, 2015, 9:36 PM
    Hi!
    Has anybody tried this plugin over an installation with Oracle DB?
    Thanks!
  • Picture of Nicolas Dunand
    Fri, Mar 20, 2015, 10:50 PM
    Hi Carina,

    I haven't tried, but as this module uses Moodle's API which abstracts DB calls, the underlying DB should be irrelevant. So it should be working fine on top of an Oracle database.
  • Picture of Martin Vojtela
    Wed, Aug 12, 2015, 5:14 PM
    Hi Nicolas,
    wonderful work! Any chance the next version will re-direct users back to the course after they have made a selection? The current setup is rather confusing for the users.
    All the best,
    Martin
  • Picture of Nicolas Dunand
    Wed, Aug 12, 2015, 7:49 PM
    Hi Martin,
    No, little chance of this ever happening. I can't think of any other Moodle module behaving like that, and I don't want to confuse users with a feature "quitting" after usage. I hope I understood you well, if not feel free to explain further.
  • Picture of Martin Vojtela
    Wed, Aug 12, 2015, 8:00 PM
    Hi Nicolas,
    All I was trying to say is that from the most obvious use case - 1. user enters the Group Choice activity, 2. user selects a group 3. user goes back to continue the course and see activities relevant to his group. I feel it is counter intuitive to go back to the screen which prompts me to select a group - I just did that after all...

    In essence I am just reinforcing what Mike Keyes wrote 24 Feb 2014, 9:22 PM - any way to add a link/button to return to the course? users are not sure how to get back.

    Cheers, Martin
  • Picture of Nicolas Dunand
    Wed, Aug 12, 2015, 8:05 PM
    Hi Martin,
    Indeed, that would make sense. I have to look into it and check what would be a clearer display of what is happening/has happened to the end user, without confusing long-time users, who are used to the current behaviour of the plugin.
  • Picture of Martin Vojtela
    Wed, Aug 12, 2015, 8:10 PM
    That is very true, good point. Perhaps a back button as Mike suggested would be more suitable than my idea. In any way, great work Nicolas.
  • Picture of Nicolas Dunand
    Wed, Aug 12, 2015, 8:13 PM
    Thanks. I'll be looking into it in the next couple of weeks, as I'll be releasing an update, officially supporting Moodle 2.9.
  • Picture of Michael Milette
    Sat, Nov 21, 2015, 2:12 AM
    Hi Nicolas, I would like to contribute some additional fixes to the plugin.

    1) Is the version on GitHub your most recent?

    2) When are you planning on releasing the next version?

    3) Would you prefer individual fixes or a rollup of multiple fixes?
  • Picture of Nicolas Dunand
    Mon, Nov 23, 2015, 5:36 PM
    Hi Michael, thanks for offering.

    1) yes
    2) when I've made sur it works flawlessly on Moodle 3.0
    3) individual fixes please
  • Picture of Adam Pawelczak
    Thu, Dec 10, 2015, 6:18 AM
    Hi Nicolas,
    We have experienced a problem when a lot of users (ca 250) tryed to use choicegroup simultaneously. Despite the limit of 15 users per group, up to 21 has successfully chosen the same groups.
    I have prepared a fix for it.
    To implement it, remove the rows 370 to 377 in lib.php and paste the code presented below at the same position.
    We have tested this on ca 450 students waiting "in starting blocks" to choose a thesis supervisor. 350 of them have done it in 5 minutes without any problem

    -------------------
    groups_add_member($selected_option->groupid, $userid);
    $groupmember_added = true;
    if ($choicegroup->limitanswers) {
    $groupmember = $DB->get_record('groups_members', array('groupid' => $selected_option->groupid, 'userid'=>$userid));
    $select_count = 'groupid='.$selected_option->groupid.' and id<='.$groupmember->id;
    $countanswers = $DB->count_records_select('groups_members', $select_count);
    $maxans = $choicegroup->maxanswers[$formanswer];
    if ($countanswers > $maxans) {
    groups_remove_member($selected_option->groupid, $userid);
    $groupmember_added = false;
    }
    }
    if ($groupmember_added) {
    ----------

    Best Regards
    Adam Pawełczak


  • Picture of Nicolas Dunand
    Thu, Dec 10, 2015, 10:01 PM
    Thanks Adam,

    I just made the required changes (and a couple others) and released an updated version of this plugin. The updated version now also supports officially Moodle 3.0.
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