Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Phoenix Web Development

You're reading from   Phoenix Web Development Create rich web applications using functional programming techniques with Phoenix and Elixir

Arrow left icon
Product type Paperback
Published in Apr 2018
Publisher Packt
ISBN-13 9781787284197
Length 406 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Brandon Richey Brandon Richey
Author Profile Icon Brandon Richey
Brandon Richey
Arrow right icon
View More author details
Toc

Table of Contents (14) Chapters Close

Preface 1. A Brief Introduction to Elixir and Phoenix 2. Building Controllers, Views, and Templates FREE CHAPTER 3. Storing and Retrieving Vote Data with Ecto Pages 4. Introducing User Accounts and Sessions 5. Validations, Errors, and Tying Loose Ends 6. Live Voting with Phoenix 7. Improving Our Application and Adding Features 8. Adding Chat to Your Phoenix Application 9. Using Presence and ETS in Phoenix 10. Working with Elixir's Concurrency Model 11. Implementing OAuth in Our Application 12. Building an API and Deploying 13. Other Books You May Enjoy

Creating our Option schema

We'll need to create an Option schema, just like we have the Poll schema, but we'll need to do some additional legwork to make sure our representation makes sense. We'll also need to go back and fix up one thing we omitted from our Poll schema! First, we want to name our module Vocial.Votes.Option instead of Vocial.Votes.Poll (for obvious reasons). Next, we'll need to alias both Vocial.Votes.Poll and Vocial.Votes.Option. This is because we need the sanity helper for referencing the struct of our Option schema, and also because we'll need to reference the Poll schema as well to define our relationship to that table. We'll also need to create a :votes column on the schema; this one should be an integer with a default value of 0. Let's take a look at the finished file with all of those bells and whistles:

defmodule Vocial...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime