op.php
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<?php
/**
* ownCloud - Documents App
*
* @author Victor Dubiniuk
* @copyright 2013 Victor Dubiniuk victor.dubiniuk@gmail.com
*
* This file is licensed under the Affero General Public License version 3 or
* later.
*/
namespace OCA\Documents;
class Db_Op extends Db {
const DB_TABLE = '`*PREFIX*documents_op`';
protected $tableName = '`*PREFIX*documents_op`';
protected $insertStatement = 'INSERT INTO `*PREFIX*documents_op` (`es_id`, `member`, `opspec`) VALUES (?, ?, ?)';
public static function addOpsArray($esId, $memberId, $ops){
$lastSeq = "";
$opObj = new Db_Op();
foreach ($ops as $op) {
$opObj->setData(array(
$esId,
$memberId,
json_encode($op)
));
$opObj->insert();
$lastSeq = $opObj->getLastInsertId();
}
return $lastSeq;
}
/**
* @returns "" when there are no Ops, or the seq of the last Op
*/
public function getHeadSeq($esId){
$query = \OCP\DB::prepare('
SELECT `seq`
FROM ' . $this->tableName . '
WHERE `es_id`=?
ORDER BY `seq` DESC
', 1);
$result = $query->execute(array(
$esId
))
->fetchOne()
;
return !$result ? "" : $result;
}
public function getOpsAfterJson($esId, $seq){
$ops = $this->getOpsAfter($esId, $seq);
if (!is_array($ops)){
$ops = array();
}
$ops = array_map(
function($x){
$decoded = json_decode($x['opspec'], true);
$decoded['memberid'] = strval($decoded['memberid']);
return $decoded;
},
$ops
);
return $ops;
}
public function getOpsAfter($esId, $seq){
if ($seq == ""){
$seq = -1;
}
$query = \OCP\DB::prepare('
SELECT `opspec`
FROM ' . self::DB_TABLE . '
WHERE `es_id`=?
AND `seq`>?
ORDER BY `seq` ASC
');
$result = $query->execute(array($esId, $seq));
return $result->fetchAll();
}
public function addMember($esId, $memberId, $fullName, $color, $imageUrl){
$op = '{"optype":"AddMember","memberid":"'. $memberId .'","timestamp":"'. time() .'", "setProperties":{"fullName":"'. $fullName .'","color":"'. $color .'","imageUrl":"'. $imageUrl .'"}}';
$this->insertOp($esId, $memberId, $op);
}
public function removeCursor($esId, $memberId){
if ($this->hasOp($esId, $memberId, 'AddCursor') && !$this->hasLastOp($esId, $memberId, 'RemoveCursor')){
$op = '{"optype":"RemoveCursor","memberid":"'. $memberId .'","reason":"server-idle","timestamp":'. time() .'}';
$this->insertOp($esId, $memberId, $op);
}
}
public function removeMember($esId, $memberId){
if ($this->hasOp($esId, $memberId, 'AddMember') && !$this->hasLastOp($esId, $memberId, 'RemoveMember')){
$op ='{"optype":"RemoveMember","memberid":"'. $memberId .'","timestamp":'. time() .'}';
$this->insertOp($esId, $memberId, $op);
}
}
public function updateMember($esId, $memberId, $fullName, $color, $imageUrl){
//TODO: Follow the spec https://github.com/kogmbh/WebODF/blob/master/webodf/lib/ops/OpUpdateMember.js#L95
$op = '{"optype":"UpdateMember","memberid":"'. $memberId .'","fullName":"'. $fullName .'","color":"'. $color .'","imageUrl":"'. $imageUrl .'","timestamp":'. time() .'}'
;
$this->insertOp($esId, $memberId, $op);
}
public function changeNick($esId, $memberId, $fullName){
$op = '{"optype":"UpdateMember","memberid":"'. $memberId .'", "setProperties":{"fullName":"'. $fullName .'"},"timestamp":'. time() .'}'
;
$this->insertOp($esId, $memberId, $op);
}
protected function insertOp($esId, $memberId, $op){
$op = new Db_Op(array(
$esId,
$memberId,
$op
));
$op->insert();
}
protected function hasLastOp($esId, $memberId, $opType){
$query = \OCP\DB::prepare('
SELECT `opspec`
FROM ' . self::DB_TABLE . '
WHERE `es_id`=?
AND `member`=?
ORDER BY `seq` DESC
',
2,0
);
$result = $query->execute(array($esId, $memberId));
$ops = $result->fetchAll();
foreach ($ops as $op){
$decoded = json_decode($op['opspec'], true);
if ($decoded['optype']==$opType){
return true;
}
}
return false;
}
protected function hasOp($esId, $memberId, $opType){
$ops = $this->execute(
'SELECT * FROM ' . $this->tableName . ' WHERE `es_id`=? AND `opspec` LIKE \'%"' . $opType . '","memberid":"' . $memberId .'"%\'',
array($esId)
);
$result = $ops->fetchAll();
return is_array($result) && count($result)>0;
}
}