This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
require_once 'class.tlondata.php';
TlonMessage::$TABLE = new TlonDataTable('tl_message', 'message_id, username, document_id, arrival_time, operations, applied');
class TlonMessage
{
public static $TABLE = null;
public static function add($username, $document_id, $operations, $applied = false)
{
return TlonData::insert(self::$TABLE, array(null, $username, $document_id, time(), $operations, $applied ? 1 : 0));
}
public static function getUnappliedByDocumentID($document_id)
{
return TlonData::selectConds(self::$TABLE, array(TlonDataComparison::equals('document_id', $document_id), TlonDataComparison::equals('applied', 0)));
}
public static function getByArrivalTimeAfter($document_id, $time, $username)
{
return TlonData::selectConds(self::$TABLE, array(TlonDataComparison::equals('document_id', $document_id), TlonDataComparison::greaterThan('arrival_time', $time), TlonDataComparison::notEquals('username', $username)));
}
private function integrateMessages($document_id)
{
$dbg = array('docid' => $document_id);
if (($msgs = TlonMessage::getUnappliedByDocumentID($document_id)) && ($doc = $this->_get($document_id))) {
$dbg['num_messages'] = count($msgs);
$wd = new WootDocument(new WootID(0, 0), $doc['title'], array_map(array($this, 'arrToWootChar'), $doc['content']));
$dbg['before'] = $this->unserialize($doc['content']);
foreach ($msgs as $msg) {
$applied = true;
$ops = $this->unserialize($msg['operations']);
foreach ($ops as $op) {
$r = $op['op'] == WootMessage::OP_DEL ? $wd->integrateDelete($this->arrToWootChar($op['char'])) : $wd->integrateInsert($this->arrToWootChar($op['char']), $this->arrToWootChar($op['prev']), $this->arrToWootChar($op['next']));
if ($r === false) {
$applied = false;
}
}
if ($applied) {
TlonMessage::setApplied($msg['message_id']);
}
}
$dbg['after'] = array_map(array($this, 'wootCharToArr'), $wd->content());
$doc['content'] = $this->serialize(array_map(array($this, 'wootCharToArr'), $wd->content()));
$dbg['res'] = TlonDocument::update($document_id, $doc['title'], $doc['content'], $doc['parent']);
}
$this->cleanMessages($document_id);
return $dbg;
}