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MDL-54108 mod_feedback: separate upgrade sql for mysql

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This commit is contained in:
Marina Glancy 2016-05-16 15:17:57 +08:00
parent 8e70465aa8
commit ea4176c24f
1 changed files with 9 additions and 2 deletions
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11
mod/feedback/db/upgradelib.php
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@ -56,11 +56,18 @@ function mod_feedback_upgrade_courseid($tmp = false) {
}
// Part 2. Update courseid in the completed table.
$sql = "UPDATE {feedback_completed$suffix} "
if ($DB->get_dbfamily() !== 'mysql') {
$sql = "UPDATE {feedback_completed$suffix} "
. "SET courseid = (SELECT COALESCE(MIN(v.course_id), 0) "
. "FROM {feedback_value$suffix} v "
. "WHERE v.completed = {feedback_completed$suffix}.id)";
$DB->execute($sql);
$DB->execute($sql);
} else {
$sql = "UPDATE {feedback_completed$suffix} c, {feedback_value$suffix} v "
. "SET c.courseid = v.course_id "
. "WHERE v.completed = c.id AND v.course_id <> 0";
$DB->execute($sql);
}
}
/**