Ruby on Rails is software code built on top of Ruby. Technically, it is defined as a package library called RubyGem, installed using the command line interface of the operating system. Ruby on Rails is an open-source web development framework, which provides Ruby developers a timesaving alternative to develop code. It is a collection of code libraries, which offer a ready-made solution for repetitive tasks like developing tables, forms or menus on the website.
Key characteristics of Ruby on Rails
1. MVC Architecture
Ruby on Rails is based on the Model, View and Controller pattern, the widely used web application architecture. Hence, developers who are familiar with other frameworks using MVC patterns can find ease using Ruby on Rails. With this architecture, it separates codes of different functions, i.e. presentation layer, data layer and maintaining a resource layer.
2. Active Record
Ruby on Rails relies on the robust and powerful library called active record, which makes it easy for developers design the database interaction queries. This is because they are writing the query in Ruby programming language itself, which is then automatically converted into a SQL query, that receives the output and returns an object. The active record library can accomplish most of the task; hence, it is very rare to develop a query in SQL.
3. Convention over Configuration
Ruby on Rails avoids configuration files to spare conventions, reflection as well as dynamic runtime extensions. The idea behind the “Convention over Configuration” is assigning value automatically without user intervention. Some software systems, including Java web application frameworks, require multiple config files, each with several settings which is very tedious. The convention feature increases productivity since you don’t need to spend time setting up config files. It saves you from spending time on thinking about where stuff goes & what name to assign.
4. Simple Testing Tool
Ruby on Rails also comes with a unit testing setup called RSpec, which is very easy to learn. Since it is plain Ruby, you can use it to test the functions employed in the application by separately calling them. It helps you to ensure your application has been tested properly.
5. Automated Deployment
Ruby on Rails includes libraries to allow the code to proceed to production with less efforts & reduced time. With just an initial one-time setup, it deploys every change you have done to the production with just a single line on command interface.
6. Simple Programming Language
The Syntax of Ruby on rail is simple, concise, closer to English language & flexible. Ruby is an object-oriented programming language, which allows you to create virtual objects in your code. The figure below compares a simple Hello World code in Ruby with the same with PHP, another similar scripting language:
echo “Hello World”;
puts “Hello World”
In PHP, to print the word, Hello World on your browser screen, you have to use a semicolon as well as the command “echo”.
To achieve the same thing, Ruby allows you to use the more spoken-language like “puts” command and no need of the semicolon. In the same way, Ruby programming language saves your time and enhances efficiency in writing long and complex functions.
Limitations of Ruby on Rails
Just as with other programming languages and frameworks, Ruby on Rails also includes some negative factors and drawbacks. Here are some of the limitations with Ruby on Rails:
1. Obscurity due to Convention
One of the major delights of coding is that it explains everything that happens in an app. If you are aware of where to explore, you will find the source of any action. Besides the advantages of convention over configuration to beginners, it adds obscurity to skilled programmers. For example, with the absence of the configuration file, there is no code, which discloses that data from a class named “chapter” is saved to a table named “book”.
2. Boot Speed
Most developers who are working in Ruby on Rails state that the boot speed of the framework is not up to the expectation. Based on the number of files and dependencies, Ruby on Rails requires a substantial amount of time to start. This problem influences the performance of the developers.
Ruby on Rails supports Multithreading. Hence, if you are not cautious, requests will be queued up at the back of the active request. This can cause performance issues.
By understanding, what is Ruby on Rails, you can get a clearer picture of why it is the ideal choice for several companies developing web apps. It is still competing with the popular programming languages available today. Therefore, it is worth to look out for Ruby on Rails programming language, as it still ranks among the popular frameworks. And with the developments it is showing, even in the future, it will remain a great choice for your development requirements.