Welcome to the Ruby on Rails Tutorial! This guide will help you learn how to build web applications using the Ruby on Rails framework. Rails is a popular open-source web application framework that follows the convention over configuration (CoC) principle, making it easy to use and efficient for developers.

What is Ruby on Rails?

Ruby on Rails, often referred to as Rails, is a web application framework written in Ruby. It is designed to make web development easier by providing a structured way to build web applications. Rails is known for its elegant syntax and rich feature set, making it a favorite among developers.

Key Features of Rails

  • Model-View-Controller (MVC) Architecture: Rails follows the MVC pattern, separating the application into three interconnected components: the model, view, and controller.
  • ActiveRecord: Rails includes an ORM (Object-Relational Mapping) layer called ActiveRecord, which simplifies database interactions.
  • Scaffolding: Rails provides a quick way to generate the basic CRUD (Create, Read, Update, Delete) functionality for a model and its corresponding views.
  • Ruby Gems: Rails is built on top of Ruby Gems, a package manager that allows you to easily add and manage additional functionality to your application.

Getting Started

Before you begin, make sure you have Ruby and Rails installed on your system. You can find installation instructions on the official Rails website.

Once you have Rails installed, you can create a new project using the following command:

rails new myapp

This will create a new directory called myapp with all the necessary files and configurations to start a new Rails application.

Building Your First Application

To build your first application, follow these steps:

  1. Define the Model: Create a new model to represent the data you want to store in the database. For example, if you are building a blog, you might create a Post model.
  2. Generate the Controller: Use the Rails generator to create a controller for your model. This will automatically create the necessary actions for CRUD operations.
  3. Create the Views: Define the views for your controller. These are the HTML templates that will display the data from your model.
  4. Run the Server: Start the Rails server using the following command:
rails server

Now, you can access your application by navigating to http://localhost:3000 in your web browser.

Resources

For more information and resources, check out the following links:

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