I have an existing PHP / Mysql project that needs modifications to it for the existing store. You can see the site at [url removed, login to view] It needs to have the following modifications to it:
1) The same Coupon codes need to be able to be entered on multiple products. At the moment, a coupon code can only be on one product.
2) The Checkout page should display the shopping cart / basket with all the coupon code, tax and shipping calculations
3) We want to add three easy payment capabilities. This would be handled as follows:
a) Post the initial payment to the credit card via the PayPal API
b) Create a Cron job that executes the PHP / Mysql code to charge the recurring amounts (for the remaining two payments)
4) We also want to have a way of having a link that would allow a user to add a product to the cart and go immediately to the cart page.
Upon project acceptance, I have a design document that details the requirements.