/**
* Returns the previous photo in the album to display
*
* @param \Photo\Model\Photo $photo
*
* @return \Photo\Model\Album|null Photo if there is a previous
* photo, null otherwise
*/
public function getPreviousPhoto($photo)
{
$qb = $this->em->createQueryBuilder();
$qb->select('a')->from('Photo\\Model\\Photo', 'a')->where('a.id < ?1 AND a.album = ?2')->setParameter(1, $photo->getId())->setParameter(2, $photo->getAlbum())->addOrderBy('a.id', 'DESC')->setMaxResults(1);
$res = $qb->getQuery()->getResult();
return empty($res) ? null : $res[0];
}
/**
* Returns a unique file name for a photo.
*
* @param \Photo\Model\Photo $photo the photo to get a name for
*
* @return string
*/
public function getPhotoFileName($photo)
{
// filtering is required to prevent invalid characters in file names.
$filter = new \Zend\I18n\Filter\Alnum(true);
$albumName = $filter->filter($photo->getAlbum()->getName());
// don't put spaces in file names
$albumName = str_replace(' ', '-', $albumName);
$extension = substr($photo->getPath(), strpos($photo->getPath(), '.'));
$photoName = $albumName . '-' . $photo->getDateTime()->format('Y') . '-' . $photo->getId() . $extension;
return $photoName;
}
