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MDL-64568 core: upgrade step to remove orphaned group conversations

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This commit is contained in:
Mark Nelson
2019-03-11 09:24:44 +08:00
parent 4d3a32dde9
commit c47c19634e
2 changed files with 37 additions and 1 deletions
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lib/db/upgrade.php
+36
View File
@@ -2952,5 +2952,41 @@ function xmldb_main_upgrade($oldversion) {
upgrade_main_savepoint(true, 2018120302.04);
}
if ($oldversion < 2018120303.01) {
// Remove any conversations and their members associated with non-existent groups.
$sql = "SELECT mc.id
FROM {message_conversations} mc
LEFT JOIN {groups} g
ON mc.itemid = g.id
WHERE mc.component = :component
AND mc.itemtype = :itemtype
AND g.id is NULL";
$conversations = $DB->get_records_sql($sql, ['component' => 'core_group', 'itemtype' => 'groups']);
if ($conversations) {
$conversationids = array_keys($conversations);
$DB->delete_records_list('message_conversations', 'id', $conversationids);
$DB->delete_records_list('message_conversation_members', 'conversationid', $conversationids);
// Now, go through each conversation and delete any messages and related message actions.
foreach ($conversationids as $conversationid) {
if ($messages = $DB->get_records('messages', ['conversationid' => $conversationid])) {
$messageids = array_keys($messages);
// Delete the actions.
list($insql, $inparams) = $DB->get_in_or_equal($messageids);
$DB->delete_records_select('message_user_actions', "messageid $insql", $inparams);
// Delete the messages.
$DB->delete_records('messages', ['conversationid' => $conversationid]);
}
}
}
// Main savepoint reached.
upgrade_main_savepoint(true, 2018120303.01);
}
return true;
}
version.php
+1 -1
View File
@@ -29,7 +29,7 @@
defined('MOODLE_INTERNAL') || die();
$version = 2018120303.00; // 20181203 = branching date YYYYMMDD - do not modify!
$version = 2018120303.01; // 20181203 = branching date YYYYMMDD - do not modify!
// RR = release increments - 00 in DEV branches.
// .XX = incremental changes.