Don’t Over-Use Callbacks
Explore how to manage Rails controller callbacks effectively by understanding their benefits and limitations. Learn why overusing callbacks can lead to complex code, and discover better ways to handle reusable logic, such as using private methods for clarity and rescue_from for error handling. This lesson helps you write clearer, more maintainable controller code.
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Efficiently managing callbacks in Rails applications
Controller callbacks (originally called filters) allow us to place code in other methods that run before or after code in controller methods. This is extremely useful for cross-cutting concerns that apply to many or all controller methods. Rails’ cross-site request forgery (CSRF), for example, is implemented using callbacks.
Callbacks are sometimes abused by developers overzealously ...