MPOS / php-mpos

      return false;

    }

    $stmt = $this->mysqli->prepare("INSERT INTO " . $this->getTableName() . " (account_id, currency, coin_address) VALUES (?, ?, ?)");

    if ( $this->checkStmt($stmt) && $stmt->bind_param('iss', $userID, $currency, $address) && $stmt->execute()) {

      return true;

    }

    return $this->sqlError();

  }

  public function remove ($userID, $currency=NULL) {

    if ($currency === NULL) $currency = $this->config['currency'];

    $stmt = $this->mysqli->prepare("DELETE FROM " . $this->getTableName() . " WHERE account_id = ? AND currency = ?");

    if ( $this->checkStmt($stmt) && $stmt->bind_param('is', $userID, $currency) && $stmt->execute()) {

      return true;

    }

    return $this->sqlError();

  }

    }

    if ($this->getCoinAddress($userID) != NULL) {

      $stmt = $this->mysqli->prepare("UPDATE " . $this->getTableName() . " SET coin_address = ?, ap_threshold = ? WHERE account_id = ? AND currency = ?");

      if ( $this->checkStmt($stmt) && $stmt->bind_param('sdis', $address, $ap_threshold, $userID, $currency) && $stmt->execute()) {

        return true;

      }

    } else {

      $stmt = $this->mysqli->prepare("INSERT INTO " . $this->getTableName() . " (coin_address, ap_threshold, account_id, currency) VALUES (?, ?, ?, ?)");

      if ( $this->checkStmt($stmt) && $stmt->bind_param('sdis', $address, $ap_threshold, $userID, $currency) && $stmt->execute()) {

      }

    } else {

      $stmt = $this->mysqli->prepare("INSERT INTO " . $this->getTableName() . " (coin_address, ap_threshold, account_id, currency) VALUES (?, ?, ?, ?)");

      if ( $this->checkStmt($stmt) && $stmt->bind_param('sdis', $address, $ap_threshold, $userID, $currency) && $stmt->execute()) {

        return true;

      }

    }

    return $this->sqlError();

  }