Generate coupons in another coupon program

This module extends coupon programs (the promotion setup used by the Coupons app) with a new field called Next Order Program. You can only pick another program of type coupon program.

On the coupon program form, the field appears only when the program applies on the next order. A note explains that the coupons generated by this program will follow the rules defined in the Next Order Program. If you switch the program back to applying on the current order, the linked program is cleared automatically, because the combination would behave unexpectedly.

When a program is linked to another one, the reward settings of the original program are hidden, since the rewards come from the linked program instead. The usual coupon counter is also hidden and replaced by a button labelled Next Program Coupons, which shows how many coupons the linked program has and opens the list of those coupons when clicked.

In short, it separates the rule that creates a coupon from the rule that later applies it, and gives you a direct shortcut to the coupons of the destination program.