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MDL-31914 Ensure that completion criteria are deleted when removing a course module

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This commit is contained in:
Andrew Robert Nicols
2012-03-16 16:07:05 +00:00
parent 23778a4dfa
commit cac06a034d
3 changed files with 19 additions and 1 deletions
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course/lib.php
+1
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@@ -2854,6 +2854,7 @@ function delete_course_module($id) {
// very quick on an empty table)
$DB->delete_records('course_modules_completion', array('coursemoduleid' => $cm->id));
$DB->delete_records('course_modules_availability', array('coursemoduleid'=> $cm->id));
$DB->delete_records('course_completion_criteria', array('moduleinstance'=> $cm->id));
delete_context(CONTEXT_MODULE, $cm->id);
return $DB->delete_records('course_modules', array('id'=>$cm->id));
lib/db/upgrade.php
+17
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@@ -204,6 +204,23 @@ function xmldb_main_upgrade($oldversion) {
upgrade_main_savepoint(true, 2012030100.02);
}
if ($oldversion < 2012030900.01) {
// Delete orphaned criteria which were left when modules were removed
if ($DB->get_dbfamily() === 'mysql') {
$sql = "DELETE cc FROM {course_completion_criteria} cc
LEFT JOIN {course_modules} cm ON cm.id = cc.moduleinstance
WHERE cm.id IS NULL";
} else {
$sql = "DELETE FROM {course_completion_criteria}
WHERE NOT EXISTS (
SELECT 'x' FROM {course_modules}
WHERE {course_modules}.id = {course_completion_criteria}.moduleinstance)";
}
$DB->execute($sql);
// Main savepoint reached
upgrade_main_savepoint(true, 2012030900.01);
}
return true;
}
version.php
+1 -1
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@@ -30,7 +30,7 @@
defined('MOODLE_INTERNAL') || die();
$version = 2012030900.00; // YYYYMMDD = weekly release date of this DEV branch
$version = 2012030900.01; // YYYYMMDD = weekly release date of this DEV branch
// RR = release increments - 00 in DEV branches
// .XX = incremental changes