Home

Welcome to the ruby1 wiki!

Ruby on Rails Tutorial

Learn Web Development with Rails

Michael Hartl

https://www.railstutorial.org/book

Chapter 2: A toy app

2.1 Planning the application

2.3.5 Deploying the toy app

Screenshots

Finished App

2.4.1 What we learned in this chapter

• Scaffolding automatically creates code to model data and interact with it through the web.
• Scaffolding is good for getting started quickly but is bad for understanding.
• Rails uses the Model-View-Controller (MVC) pattern for structuring web applications.
• As interpreted by Rails, the REST architecture includes a standard set of URLs and controller actions for interacting with data models.
• Rails supports data validations to place constraints on the values of data model attributes.
• Rails comes with built-in functions for defining associations between different data models.
• We can interact with Rails applications at the command line using the Rails console.

Previous Chapter <-----------> Next Chapter