Model/UploadableTrait.php
public function setKey($key)
    {
        $this->key = $key;

        if (0 < strlen($this->key) && !$this->hasRename()) {
            if ($this->hasPath()) {
                $this->rename = pathinfo($this->path, PATHINFO_BASENAME);
            } else {
                $this->rename = pathinfo($this->key, PATHINFO_BASENAME);
            }
            $this->setUpdatedAt(new \DateTime());
        }

        return $this;
    }
public function setKey($key)
    {
        $this->key = $key;

        if (0 < strlen($this->key) && !$this->hasRename()) {
            if ($this->hasPath()) {
                $this->rename = pathinfo($this->path, PATHINFO_BASENAME);
            } else {
                $this->rename = pathinfo($this->key, PATHINFO_BASENAME);
            }
            $this->setUpdatedAt(new \DateTime());
        }

        return $this;
    }
Sets the key.

@param string $key
@return UploadableTrait