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<?php
class BlubbermessengerFlat extends Migration
{
public function description()
{
return "Makes blubber flat so that we only have one global thread.";
}
public function up()
{
DBManager::get()->exec("
DELETE FROM blubber_comments
WHERE mkdate < 1364601600
"); //30th March 2013
DBManager::get()->exec("
INSERT IGNORE INTO blubber_threads
SET thread_id = 'global',
context_type = 'public',
context_id = '',
user_id = '',
external_contact = '0',
`content` = NULL,
display_class = 'BlubberGlobalThread',
visible_in_stream = '1',
commentable = '1',
metadata = NULL,
chdate = UNIX_TIMESTAMP(),
mkdate = UNIX_TIMESTAMP()
");
DBManager::get()->exec("
UPDATE blubber_comments, blubber_threads
SET blubber_comments.thread_id = 'global'
WHERE blubber_comments.thread_id = blubber_threads.thread_id
AND blubber_threads.context_type = 'public'
");
DBManager::get()->exec("
INSERT IGNORE INTO blubber_comments (comment_id, thread_id, user_id, external_contact, `content`, network, chdate, mkdate)
SELECT thread_id, 'global', user_id, external_contact, `content`, null, chdate, mkdate
FROM blubber_threads
WHERE context_type = 'public'
AND thread_id != 'global'
");
DBManager::get()->exec("
DELETE FROM blubber_threads
WHERE context_type = 'public'
AND thread_id != 'global'
");
$select_threads = DBManager::get()->prepare("
SELECT *
FROM blubber_threads
WHERE context_type = 'course'
AND `content` IS NOT NULL AND `content` != ''
AND display_class IS NULL
");
$select_threads->execute();
$insert_comments = DBManager::get()->prepare("
UPDATE blubber_comments
SET thread_id = :thread_id
WHERE thread_id = :old_thread
");
$insert_comment = DBManager::get()->prepare("
INSERT INTO blubber_comments
SET thread_id = :thread_id,
comment_id = :comment_id,
user_id = :user_id,
external_contact = :external_contact,
`content` = :content,
network = NULL,
chdate = :chdate,
mkdate = :mkdate
");
$delete_thread = DBManager::get()->prepare("
DELETE FROM blubber_threads
WHERE thread_id = ?
");
$select_course_main_thread = DBManager::get()->prepare("
SELECT *
FROM blubber_threads
WHERE (content IS NULL OR content = '')
AND thread_id != :main_thread_id
AND context_id = :course_id
AND context_type = 'course'
AND display_class IS NULL
");
while ($row = $select_threads->fetch(PDO::FETCH_ASSOC)) {
$course_thread_id = $this->getCourseThreadId($row['context_id']);
//Alle anderen mit !content löschen
$select_course_main_thread->execute([
'main_thread_id' => $course_thread_id,
'course_id' => $row['context_id']
]);
foreach ($select_course_main_thread->fetchAll(PDO::FETCH_ASSOC) as $row2) {
$insert_comments->execute([
'thread_id' => $course_thread_id,
'old_thread' => $row2['thread_id']
]);
$delete_thread->execute([
$row2['thread_id']
]);
}
if ($row['thread_id'] !== $course_thread_id) {
//Alle Kommentare aus diesem Thread in den Main-Thread verschieben:
$insert_comments->execute([
'thread_id' => $course_thread_id,
'old_thread' => $row['thread_id']
]);
if ($row['content']) {
//Und noch einen Startkommentar in den Haupthread packen, wenn der zu löschende Thread noch einen Hauptinhalt hatte:
$insert_comment->execute([
'comment_id' => $row['thread_id'],
'thread_id' => $course_thread_id,
'user_id' => $row['user_id'],
'external_contact' => $row['external_contact'],
'content' => $row['content'],
'chdate' => $row['chdate'],
'mkdate' => $row['mkdate']
]);
}
$delete_thread->execute([
$row['thread_id']
]);
}
}
$select_private_threads = DBManager::get()->prepare("
SELECT *
FROM blubber_threads
WHERE context_type = 'private'
AND `content` IS NOT NULL AND content != ''
");
$select_private_threads->execute();
$clean_thread = DBManager::get()->prepare("
UPDATE blubber_threads
SET `content` = NULL
WHERE thread_id = ?
");
while ($row3 = $select_private_threads->fetch(PDO::FETCH_ASSOC)) {
$insert_comment->execute([
'comment_id' => md5($row3['thread_id']."_ersterkommentar"),
'thread_id' => $row3['thread_id'],
'user_id' => $row3['user_id'],
'external_contact' => $row3['external_contact'],
'content' => $row3['content'],
'chdate' => $row3['chdate'],
'mkdate' => $row3['mkdate']
]);
$clean_thread->execute([$row3['thread_id']]);
}
DBManager::get()->exec("
CREATE TABLE IF NOT EXISTS `blubber_threads_unfollow` (
`thread_id` varchar(32) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL DEFAULT '',
`user_id` varchar(32) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
`mkdate` int(11) DEFAULT NULL,
PRIMARY KEY (`thread_id`,`user_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
");
// activate routes:
require_once $GLOBALS['STUDIP_BASE_PATH'] . '/app/routes/Blubber.php';
RESTAPI\ConsumerPermissions::get()->activateRouteMap(new RESTAPI\Routes\Blubber());
}
protected function getCourseThreadId($course_id)
{
$select = DBManager::get()->prepare("
SELECT *
FROM blubber_threads
WHERE context_type = 'course'
AND context_id = ?
AND display_class IS NULL
AND (`content` IS NULL OR `content` = '')
");
$select->execute([$course_id]);
$thread_id = $select->fetch(PDO::FETCH_COLUMN, 0);
if (!$thread_id) {
$thread_id = md5(uniqid($course_id));
$insert = DBManager::get()->prepare("
INSERT IGNORE INTO blubber_threads
SET thread_id = :thread_id,
context_type = 'course',
context_id = :course_id,
user_id = '',
external_contact = '0',
`content` = NULL,
display_class = NULL,
visible_in_stream = '1',
commentable = '1',
chdate = UNIX_TIMESTAMP(),
mkdate = UNIX_TIMESTAMP()
");
$insert->execute([
'thread_id' => $thread_id,
'course_id' => $course_id
]);
}
return $thread_id;
}
public function down()
{
DBManager::exec("
DROP TABLE `blubber_threads_unfollow`;
");
}
}
|
