/**
* adds LIMIT clause, executes query and returns array of MetaFile instances
*
* @param number $rows
* @return array
*/
public function selectFirst($rows = 1)
{
$this->buildQueryString();
$this->buildValuesArray();
$this->sql .= " LIMIT {$rows}";
$rows = $this->executeQuery();
$ids = array();
foreach ($rows as $row) {
$ids[] = $row['filesID'];
}
return MetaFile::getInstancesByIds($ids);
}
/**
* returns array of MetaFile instances linked to the article
*
* @return MetaFile[]
*/
public function getLinkedMetaFiles()
{
if (!is_null($this->id) && is_null($this->linkedFiles)) {
$this->linkedFiles = MetaFile::getFilesForArticle($this);
}
return $this->linkedFiles;
}
/**
* creates a meta file based on filesystem file
* @return MetaFile
* @throws FilesystemFileException
*/
public function createMetaFile()
{
$db = Application::getInstance()->getDb();
if (count($db->doPreparedQuery("\n\t\t\tSELECT\n\t\t\t\tf.filesID\n\t\t\tFROM\n\t\t\t\tfiles f\n\t\t\t\tINNER JOIN folders fo ON fo.foldersID = f.foldersID\n\t\t\tWHERE\n\t\t\t\tf.File COLLATE utf8_bin = ? AND\n\t\t\t\tfo.Path COLLATE utf8_bin = ?\n\t\t\tLIMIT 1", array($this->filename, $this->folder->getRelativePath())))) {
throw new FilesystemFileException("Metafile '{$this->filename}' in '{$this->folder->getRelativePath()}' already exists.", FilesystemFileException::METAFILE_ALREADY_EXISTS);
}
$mf = $this->folder->createMetaFolder();
$user = User::getSessionUser();
if (!($filesID = $db->insertRecord('files', array('foldersID' => $mf->getId(), 'File' => $this->filename, 'Mimetype' => $this->getMimetype(), 'createdBy' => is_null($user) ? NULL : $user->getAdminId())))) {
throw new FilesystemFileException("Could not create metafile for '{$this->filename}'.", FilesystemFileException::METAFILE_CREATION_FAILED);
} else {
$mf = MetaFile::getInstance(NULL, $filesID);
FileEvent::create(FileEvent::AFTER_METAFILE_CREATE, $this)->trigger();
return $mf;
}
}
/**
* return all metafiles within this folder
*
* @param boolean $force forces re-reading of metafolder
*
* @return MetaFile[]
*/
public function getMetaFiles($force = FALSE)
{
if (!isset($this->metaFiles) || $force) {
$this->metaFiles = [];
foreach (Application::getInstance()->getDb()->doPreparedQuery('SELECT filesID FROM files WHERE foldersID = ?', [(int) $this->id]) as $f) {
$this->metaFiles[] = MetaFile::getInstance(NULL, $f['filesID']);
}
}
return $this->metaFiles;
}
