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Chris Oliver Rails Plugins in 20 minutes

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😱

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What is a Rails plugin?

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Rails Plugins • Routes • Models • Views • Controllers • Jobs • Etc

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Railtie vs Engine

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Railtie The core of a Rails plugin • Initializers • Configuration • Rake tasks

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Engine Railtie with more features • Models • Controllers • Views • Routes • Locales • Tasks

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Your Rails app is an Engine.

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$ rails plugin new

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Railtie rails plugin new my_railtie

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Engine rails plugin new my_engine —full

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Mountable Engines

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Mountable Engine rails plugin new my_mountable_engine —full —mountable

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\ Mounting Rails Engines in Routes

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Engine helper

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main_app helper

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Dependencies

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gemspec

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Load Order & Hooks

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Rails Plugins Rails Load Order Initializers

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on_load callbacks

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Middleware

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– Thoughtful government employees “The website should work only during business hours. ”

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🤔

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Configuration

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Configuration with Accessors

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Extending Rails Configuration

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Extending Rails Configuration

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Generators

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Extending Rails Generators

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Models & Migrations

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Rails Console

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Thanks!