3 ms·
This right here is the heart of race condition bugs, and is NOT race condition safe. When running multiple web servers and without a "validates_uniqueness_of" c
by gavingmiller 11y ago
This right here is the heart of race condition bugs, and is NOT race condition safe. When running multiple web servers and without a "validates_uniqueness_of" constraint on your database, multiple requests hitting multiple different web servers can claim multiple discounts for the same user. Problem only grows as your number of web servers grow!