/**
* Returns whether the file exists
*
* @param IdEntity|null $entity
* @param string $size
*
* @return bool
*/
public function hasFile(IdEntity $entity = null, $size)
{
if (null === $entity || null === $entity->getId()) {
return false;
}
return is_file($this->getFileSystemPath($entity, $size));
}
/**
* Generates the file name
*
* @param IdEntity $entity
*
* @throws \InvalidArgumentException
* @return string
*/
protected function getFileName(IdEntity $entity)
{
if (is_null($entity->getId())) {
throw new \InvalidArgumentException("Entity id must be set");
}
if (is_null($this->hashPrefix)) {
return "{$entity->getId()}.{$this->fileExtension}";
}
return md5("{$this->hashPrefix}-{$entity->getId()}") . ".{$this->fileExtension}";
}
