Objectives

1. Giving Lists many items.
2. Showing items of a list.
3. Building a Nested Resource Form for Creating Items in a List
4. Creating an Item associated with a list.
5. Adding validations.
6. Looking at ActiveModel::Errors
7. Rendering an invalid instance from a controller action.
8. Showing custom errors behavior.

Video

<iframe width="100%" height="720" src="https://www.youtube.com/embed/OsinhhQLmRk?rel=0&showinfo=0" frameborder="0" allowfullscreen></iframe>

MP4

This video is meant to be a review of the second set of topics in Ruby on Rails.

There will be more vidoes building out the rest of TODOMVC.

Code:

• Start of Lecture
• End of Lecture

View TodoMVC 2: Lists have Items on Learn.co and start learning to code for free.