ActiveSupport and ActiveModel
summary
Walks through concrete utilities rather than theory: builds a rails 3.2 scaffold blog styled with rails_bootstrap, demos the console with pry + pry-rails edit in console (show_method, LS, live edit), shows ActiveSupport benchmarking with a sleep-2s example that logs duration, explains callbacks and concerns with a working WebShare after-save flow, and proves ActiveModel compliance by running ActiveModel lint tests: 8 failures → 1 while implementing a flat-file Post, then highlights validations, serialization, instrumentation and how Rails 4 eases inclusion.
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chapters (14)
- 0:00ActiveSupport & ActiveModel intro
- 2:31Why Rails devs need these tools
- 3:55ActiveSupport hidden gems
- 6:24Rails console with Pry
- 9:36Benchmarking Rails perf
- 12:47ActiveSupport callbacks
- 17:16What is ActiveModel and why it matters
- 23:54ActiveModel & ActionPack
- 24:16ActiveSupport Concerns
- 25:39Instrumenting Rails
- 27:22ActiveSupport modular
- 28:07ActiveModel validations
- 29:09ActiveModel serializing
- 30:12Q&A
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