March 2025
Intermediate to advanced
472 pages
12h 10m
English
Content preview from Agile Web Development with Rails 7.2Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Iteration F1: Moving the Cart
Currently, our cart is rendered by the show action in the CartController and the corresponding html.erb template. We’d like to move that rendering into the sidebar. This means it’ll no longer be in its own page. Instead, we’ll render it in the layout that displays the overall catalog. You can do that using partial templates.
Partial Templates
Programming languages let you define methods. A method is a chunk of code with a name: invoke the method by the name, and the corresponding chunk of code gets run. And, of course, you can pass parameters to a method, which lets you write a piece of code that can be used in many different circumstances.
Think of Rails partial templates (partials for short) like a method for ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.