What is the best method to make sure two people don't edit the same row on my web app?

Question

I have a PHP/jQuery/AJAX/MySQL app built for managing databases. I want to implement the ability to prevent multiple users from editing the same database row at the same ti

Answer 1

I personally would not prevent this. If it was a requirement of the job I would track the users' current / last known location and disallow someone from editing the same line someone else is editing this way. I have seen people add a row to a table saying isLocked or isBeingWorkedOn etc... but I have seen this type of system fail far more often as well, or require moderation to unlock stuck tables if someone closed it while working on it etc...