Help Me Fix This Check/Cash Payment Method, Please

There are a LOT of requests for a cash or check payment option that just passes through a PAYMENT_STATUS_PENDING result. I really need one, too, so I thought I’d take a stab at compiling it from the hints I’ve found in the documentation and from payment-paypal.php.

(Note that there’s some talk of a “blackhole” method somewhere that does this, but I’ve only found dead links to it.)

PLEASE PLEASE PLEASE someone take a look at my code and let me know what needs to be changed to make this work. Right now it’s not even appearing in the WP>Tickets>Setup>Payment panel.

<?php

/**
 * Cash or check payment method for Camptix
 *
 * INSTALLATION INSTRUCTIONS:
 * Install and set up CampTix.
 * Copy this file into wp-content/plugins/camptix/addons
 * Activate the payment method in WP>Tickets>Setup>Payment panel.
 * Edit your e-mail templates in WP>Tickets>Setup>E-mail Templates so the text fits your new payment type.
 */
 
class CampTix_Payment_Method_Check extends CampTix_Payment_Method {
	/**
	 * The following variables are required for every payment method.
	 */
	public $id = 'check';
	public $name = 'Cash or Check';
	public $description = 'Pay by cash or check';

	public $supported_currencies = array( 'USD' );
	
    public function payment_checkout( $payment_token ) {
        // Will go to checkout here
    }
}	

	/**
	 * Process a checkout request
	 *
	 * This method is called when the user initiates
	 * a checkout process with the selected payment method. 
	 *
	 * @param string $payment_token
	 *
	 * @return int One of the CampTix_Plugin::PAYMENT_STATUS_{status} constants
	 */
	function payment_checkout( $payment_token ) {
		/** @var CampTix_Plugin $camptix */
		global $camptix;

    $payment_data = array(
        'transaction_id' => rand( 1, 9999 ),
        'transaction_details' => array(
            'buyer_email' => '[email protected]',
        ),
    );

    return $this->payment_result( $payment_token, $camptix::PAYMENT_STATUS_PENDING, $payment_data );
	}

/**
 * The last stage is to register your payment method with CampTix.
 * Since the CampTix_Payment_Method class extends from CampTix_Addon,
 * we use the camptix_register_addon function to register it.
 */
camptix_register_addon( 'CampTix_Payment_Method_Check' );