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<?php
/**
* LoginBackground.class.php
* model class for table loginbackgrounds
*
* 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 Thomas Hackl <thomas.hackl@uni-passau.de>
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*
* @property string background_id database column
* @property string id alias column for background_id
* @property string filename database column
* @property string active database column
* @property string in_release database column
*/
class LoginBackground extends SimpleORMap
{
/**
* Configures this model.
*
* @param Array $config
*/
protected static function configure($config = [])
{
$config['db_table'] = 'loginbackgrounds';
$config['registered_callbacks']['after_delete'][] = function ($pic) {
if (file_exists($pic->getPath())) {
unlink($pic->getPath());
}
};
parent::configure($config);
}
/**
* @return string The full URL to this picture.
*/
public function getURL()
{
return URLHelper::getURL(
$GLOBALS['DYNAMIC_CONTENT_URL']
. self::getRelativePath()
. "/{$this->id}.{$this->getExtension()}",
null,
true
);
}
/**
* @return string the full file system path to this picture.
*/
public function getPath()
{
return self::getPictureDirectory() . "/{$this->id}.{$this->getExtension()}";
}
/**
* @return int The file size in bytes.
*/
public function getFilesize()
{
if (file_exists($this->getPath())) {
return filesize($this->getPath());
}
return false;
}
/**
* @return int The picture dimensions as provided by getimagesize.
*/
public function getDimensions()
{
if (file_exists($this->getPath())) {
return getimagesize($this->getPath());
}
return false;
}
/**
* @return string The picture's extension
*/
public function getExtension()
{
return pathinfo($this->filename, PATHINFO_EXTENSION);
}
/**
* Provides a random picture for the given view.
* @param string $view one of 'desktop', 'mobile'.
* @return LoginBackground One of the available pictures.
*/
public static function getRandomPicture($view = 'desktop')
{
if (!in_array($view, ['desktop', 'mobile'])) {
throw new Exception('Unknown view mode');
}
$pic = self::findOneBySQL("{$view} = 1 ORDER BY RAND() LIMIT 1");
return $pic;
}
/**
* @return string The relative path to the Stud.IP web root.
*/
public static function getRelativePath()
{
return '/loginbackgrounds';
}
/**
* @return The directory where all available background pictures live.
*/
public static function getPictureDirectory()
{
return $GLOBALS['DYNAMIC_CONTENT_PATH'] . self::getRelativePath();
}
}
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