MDL-65276 core: convert legacy cron function to task

completion/cron.php

@@ -27,155 +27,6 @@
 defined('MOODLE_INTERNAL') || die();
 require_once($CFG->libdir.'/completionlib.php');
 
-/**
- * Mark users as started if the config option is set
- *
- * @return void
- */
-function completion_cron_mark_started() {
-    global $CFG, $DB;
-
-    if (debugging()) {
-        mtrace('Marking users as started');
-    }
-
-    if (!empty($CFG->gradebookroles)) {
-        $roles = ' AND ra.roleid IN ('.$CFG->gradebookroles.')';
-    } else {
-        // This causes it to default to everyone (if there is no student role)
-        $roles = '';
-    }
-
-    /**
-     * A quick explaination of this horrible looking query
-     *
-     * It's purpose is to locate all the active participants
-     * of a course with course completion enabled.
-     *
-     * We also only want the users with no course_completions
-     * record as this functions job is to create the missing
-     * ones :)
-     *
-     * We want to record the user's enrolment start time for the
-     * course. This gets tricky because there can be multiple
-     * enrolment plugins active in a course, hence the possibility
-     * of multiple records for each couse/user in the results
-     */
-    $sql = "
-        SELECT
-            c.id AS course,
-            u.id AS userid,
-            crc.id AS completionid,
-            ue.timestart AS timeenrolled,
-            ue.timecreated
-        FROM
-            {user} u
-        INNER JOIN
-            {user_enrolments} ue
-         ON ue.userid = u.id
-        INNER JOIN
-            {enrol} e
-         ON e.id = ue.enrolid
-        INNER JOIN
-            {course} c
-         ON c.id = e.courseid
-        INNER JOIN
-            {role_assignments} ra
-         ON ra.userid = u.id
-        LEFT JOIN
-            {course_completions} crc
-         ON crc.course = c.id
-        AND crc.userid = u.id
-        WHERE
-            c.enablecompletion = 1
-        AND crc.timeenrolled IS NULL
-        AND ue.status = 0
-        AND e.status = 0
-        AND u.deleted = 0
-        AND ue.timestart < ?
-        AND (ue.timeend > ? OR ue.timeend = 0)
-            $roles
-        ORDER BY
-            course,
-            userid
-    ";
-
-    $now = time();
-    $rs = $DB->get_recordset_sql($sql, array($now, $now, $now, $now));
-
-    // Check if result is empty
-    if (!$rs->valid()) {
-        $rs->close(); // Not going to iterate (but exit), close rs
-        return;
-    }
-
-    /**
-     * An explaination of the following loop
-     *
-     * We are essentially doing a group by in the code here (as I can't find
-     * a decent way of doing it in the sql).
-     *
-     * Since there can be multiple enrolment plugins for each course, we can have
-     * multiple rows for each particpant in the query result. This isn't really
-     * a problem until you combine it with the fact that the enrolment plugins
-     * can save the enrol start time in either timestart or timeenrolled.
-     *
-     * The purpose of this loop is to find the earliest enrolment start time for
-     * each participant in each course.
-     */
-    $prev = null;
-    while ($rs->valid() || $prev) {
-
-        $current = $rs->current();
-
-        if (!isset($current->course)) {
-            $current = false;
-        }
-        else {
-            // Not all enrol plugins fill out timestart correctly, so use whichever
-            // is non-zero
-            $current->timeenrolled = max($current->timecreated, $current->timeenrolled);
-        }
-
-        // If we are at the last record,
-        // or we aren't at the first and the record is for a diff user/course
-        if ($prev &&
-            (!$rs->valid() ||
-            ($current->course != $prev->course || $current->userid != $prev->userid))) {
-
-            $completion = new completion_completion();
-            $completion->userid = $prev->userid;
-            $completion->course = $prev->course;
-            $completion->timeenrolled = (string) $prev->timeenrolled;
-            $completion->timestarted = 0;
-            $completion->reaggregate = time();
-
-            if ($prev->completionid) {
-                $completion->id = $prev->completionid;
-            }
-
-            $completion->mark_enrolled();
-
-            if (debugging()) {
-                mtrace('Marked started user '.$prev->userid.' in course '.$prev->course);
-            }
-        }
-        // Else, if this record is for the same user/course
-        elseif ($prev && $current) {
-            // Use oldest timeenrolled
-            $current->timeenrolled = min($current->timeenrolled, $prev->timeenrolled);
-        }
-
-        // Move current record to previous
-        $prev = $current;
-
-        // Move to next record
-        $rs->next();
-    }
-
-    $rs->close();
-}
-
 /**
  * Run installed criteria's data aggregation methods
  *