Book Image

Phoenix Web Development

By : Brandon Richey
Book Image

Phoenix Web Development

By: Brandon Richey

Overview of this book

Phoenix is a modern web development framework that is used to build API’s and web applications. It is built on Elixir and runs on Erlang VM which makes it much faster than other options. With Elixir and Phoenix, you build your application the right way, ready to scale and ready for the increasing demands of real-time web applications. This book covers the basics of the Phoenix web framework, showing you how to build a community voting application, and is divided into three parts. In the first part, you will be introduced to Phoenix and Elixir and understand the core terminologies that are used to describe them. You will also learn to build controller pages, store and retrieve data, add users to your app pages and protect your database. In the second section you will be able to reinforce your knowledge of architecting real time applications in phoenix and not only debug these applications but also diagnose issues in them. In the third and final section you will have the complete understanding of deploying and running the phoenix application and should be comfortable to make your first application release By the end of this book, you'll have a strong grasp of all of the core fundamentals of the Phoenix framework, and will have built a full production-ready web application from scratch.
Table of Contents (14 chapters)
4
Introducing User Accounts and Sessions

Adding user accounts

As mentioned in the introduction for this chapter, we want to add user accounts to our polling application to facilitate linking polls to a user and giving a user ways to control access and information concerning each of the polls that they create. The process of actually tying all of this into our application is going to involve quite a few steps in the long run. We need to do the following:

  • Figure out what the database table should look like
  • Figure out what the code representation should look like
  • Determine if the addition of this table should introduce changes into other models or schemas
  • Write the migration code that introduces the new table
  • Write the migration code that modifies existing tables and data (if necessary)
  • Modify an existing context or create a new context
  • Create a new schema
  • Modify existing schemas that are affected by this addition
  • Tie...