I want to add a boolean attribute
published to the coupon rule form (different from activate) but the same kind of attribute.
From what I see the only attribute linked are product attributes.
I've found this as a reference : Add attribute to Shopping Cart Price Rule coupon
But it's kinda old already.
Though, It's giving the idea of extending the table
salesrule to add one column.
But I'm not really sure this is the best practice cause it would modify a core table. Have you ever been facing this issue ? Thanks.