Adding a new real-time shipping system to older X-Cart

Question

Trying to add a new real time shipping system to an existing, older (4.2.x) version of X-Cart and I can not figure out how to implement it properly. Plan is to put the lookup into a new shipping/mod_*.php file and from what I can tell merge $intershipper_rates with the response I get from the rating API. I just don't know how to reliably integrate it nor if I need to manually add anything into the database to make it work properly. There doesn't seem to be any reference material or documentation for the older version I can easily access to figure it out, either. If anybody can give me a hand wrapping my head around this, I'd appreciate it.

Answer 1

In the code below replace the 'CPC' substring with your new shipper code.

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1) Create functions like

• func_shipper_CPC
• func_get_package_limits_CPC
• func_check_limits_CPC

in a new file like shipping/mod_CPC.php

2) Change the array

$mods = array("USPS", "CPC", "ARB", "FEDEX");

in the shipping/myshipper.php

3) Add a row to the shipping options table

$params = func_query_first ("SELECT * FROM $sql_tbl[shipping_options] WHERE carrier='CPC'");

4) Add possible shipping methods in the xcart_shipping table

INSERT INTO xcart_shipping VALUES (null,'Canada Post Expedited','','L','CPC','81',20,'Y','CEX',0.00,0.00,1020,'','');
INSERT INTO xcart_shipping VALUES (null,'Canada Post Regular','','L','CPC','82',10,'Y','CRE',0.00,0.00,1010,'','');
INSERT INTO xcart_shipping VALUES (null,'Canada Post Xpresspost USA','','I','CPC','89',90,'Y','',0.00,0.00,2030,'','');
.....