Ruby on Rails is a web-application framework written in Ruby that includes everything needed to create web applications. Let's use Rails to develop a Twitter-like SNS app!

In this lesson, we'll be adding a page to the SNS app we made in the previous lesson to show the timeline. We'll also be learning about databases along the way.

In this lesson, we'll be creating a page to show the details of a post. We'll also add a "New Post" page for the users to create posts.

In this lesson, we'll be adding the "Edit" and "Delete" functionalities to the TweetApp.

In this lesson, we'll learn how to validate data. This will let you prevent saving posts that are empty or too long.

In this lesson, we'll be adding the User model to the TweetApp. It's a good place to review what you've learned in the previous lessons!

In this lesson, we'll add a column to let the users set a profile image.

In this lesson, we'll learn how to add the "Log in/Log out" functionality to our TweetApp.

In this lesson, we'll learn how to associate the Post model and the User model. This will allow us to display which user posted which post.

In this lesson, we'll add the "likes" functionality to our app.

In this lesson, we'll learn how to handle passwords securely in web applications.