4 ms·
just add a unique-constraint to your phone-number-column and it should be fine.
by scrrr 16y ago
just add a unique-constraint to your phone-number-column and it should be fine.
- inerte 16y agoYou're right about some kind of constraint, but what would happen if the user says the SMS never came and needs another? :) Some kind of rate limiting (one per day?) is necessary.