How to allow only new user registration from referral links?
alliax - September 27, 2009 - 06:39
| Project: | User Referral |
| Version: | 6.x-1.x-dev |
| Component: | Code: other |
| Category: | support request |
| Priority: | normal |
| Assigned: | Unassigned |
| Status: | won't fix |
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Description
Hello, I have already a good amount of users and I'd like to install a new policy, that is that from now on new users will be accepted only if they sign up from a referral link.
In your opinion, how can it be done?

#1
This requires some custom code.
For example a hook_form_alter() that disables the "Create new account" button when the $_SERVER['referer'] dopes not contain a valid referral link that maps to a valid user on the system.
#2
Thank you for your suggestion about how to go about implementing such a solution and for confirming that there isn't yet an easy to do way to do it, like a module someone else already made because he wanted the exact same functionnality.
Cheers,
James