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complex x
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)
Complex Forms Part 3
In this third and final episode on complex forms I will show you how to edit a project and multiple tasks all in one form. This includes removing and adding tasks dynamically as well. See the show notes for updated code.
(16 minutes)
Authorization from Scratch Part 1
Authorization can be difficult to implement and test because it often involves complex logic that exists throughout the entire app. Here I demonstrate how to test and implement authorization from scratch.
(15 minutes)
Ransack
Ransack allows you to easily build complex search forms. It also helps in adding sortable links and building a dynamic advanced search page.
(10 minutes)
Strong Parameters
The strong_parameters gem is an improvement over attr_accessible to securely handle mass assignment even when you have complex authorization logic. The functionality will likely be added to Rails 4 so it is a good idea to learn how it works.
(12 minutes)
Complex Forms Part 1
Complex forms often lead to complex controllers, but that doesn't have to be the case. In this episode see how you can create multiple models through a single form while keeping the controller clean.
(8 minutes)
SimpleForm (revised)
Easily generate complex forms with SimpleForm. Here I show how to convert bulky markup into a concise list of fields, customize it by passing options, and add error handling.
(9 minutes)
Presenters from Scratch
Clean up complex view logic with the help of presenters, and doing this from scratch gives you a lot of flexibility. Here I show not only how to create presenters, but how to test them using Test Unit and RSpec.
(14 minutes)
Draper
Clean up complex view logic using Draper. This gem provides decorators (much like presenters) which bundles view logic in an object oriented fashion. In this episode I do a step-by-step refactoring of a complex template into a decorator.
(12 minutes)
Jbuilder
Jbuilder provides a DSL for generating JSON. It includes a template engine which allows you to create complex responses with helpers and conditions.
(8 minutes)