Скачать или смотреть Ep 4. Active Record explained | Rails New Tutorial with Typecraft

In this episode, we're cracking open one of Rails' most powerful features - Active Record.

If you've been following along so far, you've built a solid foundation for your productivity app, Doable. But behind every .find, .all, and .destroy, something magical has been happening. Today, ‪@typecraft_dev‬ explains what's happening behind the scenes.

What you’ll learn in this video:
What Active Record actually is and why it matters
How your Ruby methods turn into real SQL queries
The inheritance chain: from ActiveRecord::Base to your models
How to safely evolve your schema with migrations
Adding and querying new fields like completed, priority, and active
Using .to_sql and find_by_sql for power-user querying

Plus: Some very complex, scientific diagrams and a strong warning about Little Bobby Tables.

Find the GitHub repo for this episode here: https://github.com/typecraft-dev/doab...

Next up: We’ll connect our Project and ToDo models using associations to make our app even smarter in Ep. 5 Connecting Projects & To-Dos    • Ep 5. Connecting Projects & To-Dos | Rails...  

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Learn more about Rails at: https://rubyonrails.org/

Subtitles (Japanese, Spanish, and Brazilian Portuguese) thanks to Happy Scribe, a transcription service built on Rails. https://www.happyscribe.com/