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<?php
/**
* File.php
* model class for table files
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author André Noack <noack@data-quest.de>
* @copyright 2016 Stud.IP Core-Group
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*
* @property string $id database column
* @property string $user_id database column
* @property string $mime_type database column
* @property string $name database column
* @property string|null $filetype database column
* @property int $size database column
* @property JSONArrayObject|null $metadata database column
* @property string $author_name database column
* @property int|null $is_accessible database column
* @property int $mkdate database column
* @property int $chdate database column
* @property SimpleORMapCollection<FileRef> $refs has_many FileRef
* @property User $owner belongs_to User
* @property mixed $extension additional field
* @property mixed $path additional field
*/
class File extends SimpleORMap
{
/**
* @param array $config
*/
protected static function configure($config = [])
{
$config['db_table'] = 'files';
$config['belongs_to']['owner'] = [
'class_name' => User::class,
'foreign_key' => 'user_id',
];
$config['has_many']['refs'] = [
'class_name' => FileRef::class,
'assoc_foreign_key' => 'file_id',
];
$config['additional_fields']['extension'] = true;
$config['additional_fields']['path'] = true;
$config['serialized_fields']['metadata'] = JSONArrayObject::class;
$config['registered_callbacks']['after_delete'][] = 'deleteDataFile';
$config['registered_callbacks']['before_create'][] = 'cbSetAuthor';
parent::configure($config);
}
/**
* Returns the file extension of a file.
*
* @return string A string with the file extension.
*/
public function getExtension()
{
return pathinfo($this->name, PATHINFO_EXTENSION);
}
/**
* Returns the path to the file in the operating system's file system.
*
* @return null|string Returns the operating system's file system path of the file or null on failure.
*/
public function getPath()
{
if (!$this->id || !in_array($this->filetype, ['StandardFile', 'LibraryFile', 'LibraryRequestFile'])) {
return null;
}
return $GLOBALS['UPLOAD_PATH'] . '/' . substr($this->id, 0, 2) . '/' . $this->id;
}
/**
* Deletes the data file associated with the File object.
*
* @return bool Returns true on success and false on failure.
*/
public function deleteDataFile()
{
return file_exists($this->getPath()) && unlink($this->getPath());
}
/**
* Connects the File object to a physical file that is stored in the operating system's file system.
*
* @param string $path_to_file The path to the physical file.
* @return bool Returns true on success and false on failure.
*/
public function connectWithDataFile($path_to_file)
{
$newpath = $this->getPath();
if (!is_dir(pathinfo($newpath, PATHINFO_DIRNAME))) {
@mkdir(pathinfo($newpath, PATHINFO_DIRNAME));
}
if (is_uploaded_file($path_to_file)) {
if (!@move_uploaded_file($path_to_file, $newpath)) {
return false;
}
} else if (!file_exists($path_to_file) || !@copy($path_to_file, $newpath)) {
return false;
}
$this->size = filesize($newpath);
return true;
}
/**
* This callback is called before creating a File object.
* It assures that the author is set to a valid user
* by setting the user_id and author_name field.
* In case no user_id is set the ID of the current user is used.
* In case the author_name field is not set either the name of the user,
* referenced by user_id is set or the name of the current user is set.
*/
public function cbSetAuthor()
{
if (!$this->user_id) {
$this->user_id = User::findCurrent()->id;
}
if (!$this->author_name) {
$user = (User::findCurrent() && $this->user_id === User::findCurrent()->id)
? User::findCurrent()
: $this->owner;
$this->author_name = $user ? $user->getFullName('no_title') : "";
}
}
}
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