#91 Refactoring Long Methods
Feb 03, 2008 | 7 minutes | Active Record, Refactoring
In this episode I walk you through an exercise in refactoring by taking a long method and making it more concise.
Form Objects
Models have a tendency to become a complex mess as an application grows. In this episode you will learn a couple of techniques to extract form-behavior out into its own class.
(18 minutes)
Batch API Requests
Here I demonstrate how to perform bulk API operations though a single request using Rack middleware. This is great if you need to trigger multiple actions at once such as if the user goes offline.
(18 minutes)
Eager Loading (revised)
One way to improve performance is to reduce the number of database queries through eager loading. Here I demonstrate this and compare the difference between the "includes" and "joins" methods.
(7 minutes)
Active Model Serializers
The ActiveModel::Serializers gem can help you build JSON APIs through serializer objects. This provides a dedicated place to fully customize the JSON output.
(10 minutes)
Edit Multiple (revised)
Editing one record at a time can be tedious work. Here you will learn three different ways to edit multiple records at once using checkboxes.
(15 minutes)
