Here's a concise tutorial on getting started with [Ruby on Rails](https://rubyonrails.org), a popular web development framework built on the Ruby programming language. This guide assumes you have basic knowledge of programming and focuses on setting up a simple Rails application. ------ ### Ruby on Rails Tutorial: Building a Simple Blog ## 1. Prerequisites Before starting, ensure you have the following installed: - **Ruby** (version 3.0 or later): Check with `ruby -v`. - **Rails** (version 7.0 or later): Check with `rails -v`. - **SQLite3**: Rails uses SQLite by default for development. - **Node.js** and **Yarn**: For JavaScript and asset management. Install Ruby and Rails if you haven't already: ```bash # Install Ruby (use a version manager like rbenv or rvm) $ gem install rails ``` Verify installation: ```bash rails -v # Should output something like: Rails 7.x.x ``` --- ## 2. Create a New Rails Application Run the following command to create a new Rails app called `blog`: ```bash rails new blog cd blog ``` This generates a directory called `blog` with all necessary files for a Rails app. --- ## 3. Start the Rails Server Start the development server to confirm everything is set up: ```bash rails server # or rails s ``` Open your browser and go to `http://localhost:3000`. You should see the Rails welcome page. --- ## 4. Create a Model, Controller, and Routes Let’s create a simple blog with posts that have a `title` and `body`. ### Generate a Model Run the following command to create a `Post` model with `title` (string) and `body` (text): ```bash rails generate model Post title:string body:text ``` This creates: - A `Post` model in `app/models/post.rb`. - A migration file in `db/migrate/` to create the `posts` table. Run the migration to create the table in the database: ```bash rails db:migrate ``` ### Generate a Controller Create a controller to handle requests for posts: ```bash rails generate controller Posts index show new create edit update destroy ``` This creates a `PostsController` in `app/controllers/posts_controller.rb` with actions for CRUD (Create, Read, Update, Delete) operations. ### Set Up Routes Edit `config/routes.rb` to define routes for the `Posts` resource: ```ruby Rails.application.routes.draw do resources :posts root 'posts#index' end ``` The `resources :posts` line creates RESTful routes for posts (e.g., `/posts`, `/posts/new`, `/posts/:id`). The `root` line sets the homepage to the `index` action.

Front-end technologies like HTML, CSS, and JavaScript are essential for building the user interface of a web application. To approach front-end development more easily, consider the following steps: 1. Use [Rails UI](https://github.com/heartcombo/rails_ui). 2. Build to market faster. 3. Profit 💰