Design Patterns

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Make an Event of It

Jason Clark • April 22, 2014 • Chicago, IL

In the video titled "Make an Event of It," presenter Jason Clark addresses common challenges developers face regarding code organization and testing in Rails applications. The primary focus of the talk is on how evented patterns can be utilized to create a clear vocabulary for what happens within a system. This separation allows developers to distinguish between the code that triggers events and the code that responds to those events, ultimately leading to cleaner architecture and easier testing.

Key Points Discussed:

- Evented Patterns: The presentation emphasizes the use of evented patterns to maintain clean boundaries within code. By understanding and employing these patterns, developers can simplify the often convoluted nature of application logic.

- Isolation of Dependencies: Clark explains that evented patterns allow for the isolation of dependencies, which makes the codebase less cumbersome and easier to manage.

- Simplified Testing: The removal of extraneous setup helpers and fixtures can significantly streamline the testing process. This reduction in complexity creates a more maintainable testing framework.

- Existing Rails Tools: The speaker points out tools and features already available in Rails that support the implementation of event-driven architectures.

Examples and Illustrations:

While the transcript did not provide specific case studies or examples, the discussion revolves around general best practices and proven methods within the context of Rails development. The session is geared towards helping developers understand the practical applications of evented patterns to improve their coding practices.

Conclusions and Takeaways:

- The presentation concludes by highlighting the importance of adopting evented patterns in Rails development for better organized, cleaner code.

- Attendees are encouraged to leverage the existing tools in Rails to facilitate this transition towards a more effective coding approach.

Overall, Jason Clark's talk serves as a valuable resource for Rails developers looking to enhance their code quality and streamline their testing processes by implementing event-driven design principles.

Make an Event of It
Jason Clark • April 22, 2014 • Chicago, IL

Are your controllers jumbled with seemingly unrelated steps? Does testing any bit of application logic require fixtures and setup helpers a mile long?

Evented patterns create a vocabulary of what happens in your system, and a way to separate code triggering events from code that responds to them. That helps tame the sprawl by setting clean boundaries, simplifying tests, and keeping your dependencies isolated.

This talk reveals the power of events and what's already in Rails to help you.

I fell in love with programming watching my dad work in Clipper and dBase III (no, really). That obsession continues today. My current language crushes are Ruby and Haskell, and I work for New Relic on the Ruby Agent. When not at work, I enjoy cycling, homebrewing, and hanging out with my family.

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