public function getUserTeamId(Dropzone $dropzone, User $user)
    {
        $teamId = null;

        if (Dropzone::DROP_TYPE_TEAM === $dropzone->getDropType()) {
            $teamDrops = $this->getTeamDrops($dropzone, $user);

            if (1 === count($teamDrops)) {
                $teamId = $teamDrops[0]->getTeamUuid();
            }
        }

        return $teamId;
    }