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plateforme-corres2math/server_files/classes/Document.php
2019-09-20 14:57:06 +02:00

99 lines
2.0 KiB
PHP

<?php
class Document
{
private $file_id;
private $user_id;
private $team_id;
private $problem;
private $type;
private $uploaded_at;
private $version;
private function __construct() {}
public static function fromId($id)
{
global $DB;
$req = $DB->prepare("SELECT * FROM `documents` WHERE `file_id` = ?;");
$req->execute([htmlspecialchars($id)]);
$data = $req->fetch();
if ($data === false)
return null;
return self::fromData($data);
}
public static function fromData($data)
{
$doc = new Document();
$doc->fill($data);
return $doc;
}
private function fill($data)
{
$this->file_id = $data["file_id"];
$this->user_id = $data["user"];
$this->team_id = $data["team"];
$this->problem = $data["problem"];
$this->type = DocumentType::fromName($data["type"]);
$this->uploaded_at = $data["uploaded_at"];
$this->version = isset($data["version"]) ? $data["version"] : 1;
}
public function getFileId()
{
return $this->file_id;
}
public function getUserId()
{
return $this->user_id;
}
public function getTeamId()
{
return $this->team_id;
}
public function getProblem()
{
return $this->problem;
}
public function getType()
{
return $this->type;
}
public function getUploadedAt()
{
return $this->uploaded_at;
}
public function getVersion()
{
return $this->version;
}
public static function getAllDocuments($problem, $team_id = -1)
{
global $DB;
$req = $DB->query("SELECT * FROM `documents` AS `t1` "
. "INNER JOIN (SELECT `user`, `type`, `problem`, MAX(`uploaded_at`) AS `last_upload`, COUNT(`team`) AS `version` FROM `documents` GROUP BY `problem`, `type`, `user`) `t2` "
. "ON `t1`.`user` = `t2`.`user` AND `t1`.`type` = `t2`.`type` AND `t1`.`problem` = `t2`.`problem` "
. "WHERE `t1`.`uploaded_at` = `t2`.`last_upload` AND `t1`.`problem` = $problem " . ($team_id >= 0 ? "AND `team` = $team_id" : "") . " ORDER BY `t1`.`type`;");
$docs = [];
while (($data = $req->fetch()) !== false)
$docs[] = Document::fromData($data);
return $docs;
}
}