Model/UploadableTrait.php
public function shouldBeRenamed()
    {
        return (bool) ($this->hasPath() && $this->guessFilename() != pathinfo($this->getPath(), PATHINFO_BASENAME));
    }
public function shouldBeRenamed()
    {
        return (bool) ($this->hasPath() && $this->guessFilename() != pathinfo($this->getPath(), PATHINFO_BASENAME));
    }
Returns whether the uploadable should be renamed or not.

@return boolean