Comments on: Some useful Moodle SQL Queries

By: James Rudd

James Rudd — Wed, 14 Jul 2010 02:55:08 +0000

I’m glad they could be of use.

By: Fire

Fire — Wed, 14 Jul 2010 01:07:20 +0000

Hey thanks for this – I made a function to get all enrolled users using your info:

        function get_enrolled_users(){
            global $CFG;
             $contextid = get_context_instance(CONTEXT_COURSE,$this->course_object->id);
             $cid=$contextid->id;
             $sql= "SELECT u.firstname, u.lastname FROM {$CFG->prefix}user u INNER JOIN {$CFG->prefix}role_assignments ra ON ra.userid=u.id AND ra.contextid={$cid}";
             $enrolledUsers = get_records_sql($sql);
            return $enrolledUsers;
        }

By: Sarah Hunt

Sarah Hunt — Thu, 29 Apr 2010 10:26:55 +0000

How to find out who created the course and who are the trainers?

By: Birgit

Birgit — Thu, 14 Aug 2008 12:16:52 +0000

Thanks a lot for those useful queries!!

By: JDS

JDS — Mon, 30 Jun 2008 15:21:11 +0000

Thanks, these were helpful!

You ought to state the SQL server and version of said server you are using, because some of these statements look like they have specific SQL server requirements. (e.g. sub-selects not available in MySQL < 4.1)

It may be moot from the POV of MySQL (because the latest Moodle requires a MySQL version that can do this stuff) but you never know.

later..