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Introduction: In the world of Ruby on Rails and Ruby, two deceptively similar methods, includes and include?, have entirely different roles. This blog post aims to shed light on their differences with concise examples to help you optimize your code effectively. Optimizing Queries with includes: includes is a powerful method in Ruby on Rails. Its…
Introduction: Ruby on Rails is renowned for its rapid development capabilities, but as your application grows, performance issues may arise. Caching is a powerful solution to enhance performance, and in this blog post, we’ll delve into how to harness the potential of Memcached, an in-memory caching system, to optimize your Rails application. Step 1: Installing…
n Ruby, you can easily check whether a variable is nil or an empty value for different data types, including strings, arrays, and hashes. Here are some common ways to perform null and empty checks: Checking for nil Checking for Empty Strings Checking for Empty Arrays Checking for Empty Hashes Using blank? In Ruby, the…
Distributed Denial of Service (DDoS) attacks can wreak havoc on web applications, causing server overload and unavailability. As a Ruby on Rails developer, you can bolster your application’s defenses against such attacks using the Rack::Attack gem. In this blog, we’ll explore what DDoS attacks are, why Rack::Attack is a vital tool, and how to implement…
One of the most common performance bottlenecks in Ruby on Rails applications is the N+1 query problem. This issue occurs when your application makes multiple unnecessary database queries when a more efficient approach could be used. Bullet is a gem that helps identify and address N+1 query problems in your Rails application. What is the…
If you are using Rails chances are you must be using ActiveRecord extensively. Let’s explore how Active record internally creates queries. How SQL query is created in Active Record? In Active Record, the sql statement generation is handled by Arel, All the commands written in active record is passed to Arel, Arel constructs the query…
The devise gem and the devise_token_auth gem are both authentication solutions for Ruby on Rails applications, but they serve different purposes. Here’s a brief explanation of the difference between devise and devise_token_auth: Devise: Devise is a popular authentication solution for Ruby on Rails applications. It provides a comprehensive set of features for user authentication, including…
Active Record is a pattern used in software engineering that represents the database in an object-oriented manner. In other words, it’s a way to use objects to interact with a database instead of writing SQL queries directly. In Ruby on Rails, Active Record is the default ORM (Object-Relational Mapping) that allows developers to define database…
In ROR, the lifecycle of an object is attached to the database of the application. Objects are created in memory first then later stored in the database. An object have following lifecycle Creation Validation Save Update Deletion These lifecycle have callbacks attached to each of them by which we can inject our custom logic. Creation…
Rubocop is a linter and code formatter for ruby, it enforces to follow the ruby style guide to improve readability and maintainability of the code https://rubystyle.guide/. To enforce this across an organisation one of the best way is to add this as a mandatory step for merging the PRs which can be done using Github…