{"id":4166,"date":"2023-11-04T23:14:06","date_gmt":"2023-11-04T23:14:06","guid":{"rendered":"http:\/\/localhost:10003\/building-web-applications-with-ruby-on-rails\/"},"modified":"2023-11-05T05:47:58","modified_gmt":"2023-11-05T05:47:58","slug":"building-web-applications-with-ruby-on-rails","status":"publish","type":"post","link":"http:\/\/localhost:10003\/building-web-applications-with-ruby-on-rails\/","title":{"rendered":"Building web applications with Ruby on Rails"},"content":{"rendered":"

Ruby on Rails is a popular web application framework that allows developers to build web applications quickly and efficiently using the Ruby programming language. In this tutorial, we will cover the basics of building a web application using Ruby on Rails. This tutorial assumes that you have basic knowledge of Ruby programming language and web development.<\/p>\n

Setting Up the Development Environment<\/h2>\n

Before we start building our application, we need to set up our development environment. Follow these steps to set up your development environment.<\/p>\n

Install Ruby<\/h3>\n

First, we need to install Ruby on our machine. Ruby is available on multiple platforms, and you can download it from the official website https:\/\/www.ruby-lang.org\/en\/downloads\/<\/a>.<\/p>\n

Install Rails<\/h3>\n

Once you have installed Ruby, we need to install Rails. Open your terminal and enter the following command to install Rails.<\/p>\n

gem install rails\n<\/code><\/pre>\n
Verify Installation<\/h3>\n
After installing Ruby and Rails, we need to verify their installation to ensure that everything is working as expected.<\/p>\n
To verify Ruby installation, open your terminal and enter the following command.<\/p>\n
ruby --version\n<\/code><\/pre>\n
This command will display the version of installed Ruby.<\/p>\n
To verify the Rails installation, enter the following command.<\/p>\n
rails --version\n<\/code><\/pre>\n
This command will display the version of installed Rails.<\/p>\n
If everything is working correctly, you should see the version of installed Ruby and Rails.<\/p>\n
Creating a New Rails Application<\/h2>\n
Now that we have our development environment set up, we can create a new Rails application. Rails provides a command-line tool, rails<\/code>, which we can use to create a new application.<\/p>\n
Open your terminal and navigate to the directory where you want to create your application. Then, enter the following command to create a new Rails application.<\/p>\n
rails new myapp\n<\/code><\/pre>\n
This command will create a new Rails application in a directory called myapp<\/code>. It will also install all the necessary dependencies.<\/p>\n
Once the command has completed, navigate to the newly created directory.<\/p>\n
cd myapp\n<\/code><\/pre>\n
Understanding the Rails File Structure<\/h2>\n
Before we start building our application, let’s take a look at the file structure of a Rails application. Understanding the structure will help us navigate through the different files and directories in our application.<\/p>\n
myapp\/\n\u251c\u2500\u2500 app\/\n\u2502   \u251c\u2500\u2500 assets\/\n\u2502   \u2502   \u251c\u2500\u2500 stylesheets\/\n\u2502   \u2502   \u2514\u2500\u2500 javascripts\/\n\u2502   \u251c\u2500\u2500 controllers\/\n\u2502   \u251c\u2500\u2500 helpers\/\n\u2502   \u251c\u2500\u2500 mailers\/\n\u2502   \u2514\u2500\u2500 views\/\n\u251c\u2500\u2500 bin\/\n\u251c\u2500\u2500 config\/\n\u2502   \u251c\u2500\u2500 initializers\/\n\u2502   \u251c\u2500\u2500 locales\/\n\u2502   \u251c\u2500\u2500 application.rb\n\u2502   \u251c\u2500\u2500 boot.rb\n\u2502   \u251c\u2500\u2500 database.yml\n\u2502   \u251c\u2500\u2500 environment.rb\n\u2502   \u2514\u2500\u2500 routes.rb\n\u251c\u2500\u2500 db\/\n\u251c\u2500\u2500 lib\/\n\u251c\u2500\u2500 log\/\n\u251c\u2500\u2500 public\/\n\u251c\u2500\u2500 test\/\n\u251c\u2500\u2500 tmp\/\n\u251c\u2500\u2500 vendor\/\n\u251c\u2500\u2500 Gemfile\n\u2514\u2500\u2500 README.md\n<\/code><\/pre>\n
Here is the description of some of the directories and files:<\/p>\n