I use Custom Capabilities to sell my software products. I do it exactly like in the video described.
All paid members are level 1 and the packages are created via Custom Capabilities.
So I generate paypal buttons like this:
product no updates
product + updates 3 month
product + updates 6 month
product + updates 1 Year
All is great so far, but now I'm getting into big trouble providing updates for a product.
If a user bought the product without updates, and then wants to get updates, he needs to buy the product again with updates, instead of just paying for the update and not the product again. There is no way, just to buy updates for a product.
If I want to offer updates, I need to know if a user has already payed the Custom Capability in the past.
In this case, I would like to show update buttons, instead of buttons to pay the full price again.
under Scripting / Content Dripping , I have found
S2MEMBER_CURRENT_USER_PAID_REGISTRATION_DAYS
s2member_paid_registration_time ();
s2member_paid_registration_time ("level1");
but this doesn't help me,
I need something like s2member_paid_registration_time ("Capability");
I know how to ask, if a user has a Custom Capability
current_user_can("access_s2member_ccap_music")
but I need to know, if a user had a Custom Capability in the past. Also if he does not have this Capability anymore.
Otherwise I cannot show this members update buttons instead of the full price buttons. And I need to offer this. My customers are asking this question. They are wondering how they get their product updates.
Looking forward that someone can help me.
Thanks Sven