get_gateway_id() public method

Returns the ID of the gateway associated with this payment token.
Since: 2.6.0
public get_gateway_id ( string $context = 'view' ) : string
$context string
return string Gateway ID
 /**
  * Update a payment token.
  *
  * @since 2.7.0
  * @param WC_Payment_Token $token
  */
 public function update(&$token)
 {
     if (false === $token->validate()) {
         throw new Exception(__('Invalid or missing payment token fields.', 'woocommerce'));
     }
     global $wpdb;
     $payment_token_data = array('gateway_id' => $token->get_gateway_id('edit'), 'token' => $token->get_token('edit'), 'user_id' => $token->get_user_id('edit'), 'type' => $token->get_type('edit'));
     $wpdb->update($wpdb->prefix . 'woocommerce_payment_tokens', $payment_token_data, array('token_id' => $token->get_id('edit')));
     $token->save_meta_data();
     $token->apply_changes();
     // Make sure all other tokens are not set to default
     if ($token->is_default() && $token->get_user_id() > 0) {
         WC_Payment_Tokens::set_users_default($token->get_user_id(), $token->get_id());
     }
     do_action('woocommerce_payment_token_updated', $token->get_id());
 }