Ruby on Rails - optimistic locking in ruby- ruby on rails tutorial - rails guides - rails tutorial - ruby rails

user_one = User.find(1)
user_two = User.find(1)

user_one.name = "John"
user_one.save
# Run at the same instance 
user_two.name = "Doe"
user_two.save # Raises a ActiveRecord::StaleObjectError

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Ruby on Rails - optimistic locking in ruby- ruby on rails tutorial - rails guides - rails tutorial - ruby rails

Optimistic Locking

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