December 2025
Intermediate to advanced
452 pages
9h 7m
English
Content preview from Layered Design for Ruby on Rails Applications - Second Edition
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8
Handling User Input Outside of Models
In this chapter, we’ll continue discussing abstractions related to Rails models. This time, we will talk about user-driven operations and the corresponding design patterns. First, we’ll talk about modifying operations (creating or updating models) and introduce the concept of a form object, which is an object representing a user interface (UI) form in the code base. Then, we’ll discuss how to read (or filter) data based on user-provided parameters with the help of filter objects.
You will learn how to identify functionality that can be moved to form and filter objects, so you can introduce new abstraction layers and reduce the responsibility of the existing ones (especially the model layer).
We will cover ...
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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.