/**
* Returns thumbnail data for the given transaction.
*
* Handles the cache layer around the creation as well.
*
* @param Transaction $transaction
*
* @return string
*/
protected function getThumbnail(Transaction $transaction)
{
$cacheKey = $transaction->getHash();
if ($this->cache->contains($cacheKey)) {
return $this->cache->fetch($cacheKey);
}
$imageData = $this->creator->create($transaction);
$this->cache->save($cacheKey, $imageData, $this->cacheTime);
return $imageData;
}
public function create(Transaction $transaction)
{
$this->transaction = $transaction;
return $transaction->getHash();
}
