Haseeb Annadamban

Latest Blog Posts

• Navigating the Maze: How to Start Working on a Legacy Rails Codebase

  Published on 2024/10/06

  Working on a legacy Rails codebase can be challenging. But you can start navigating and working on it effectively with a good strategy. This blog post discusses common steps when working in a legacy codebase. This article does not talk about optimizing the codebase; it is only about understanding and navigating it. Because it does not make any assumptions.

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• Rails 8 Authentication Generator With User Registration

  Published on 2024/10/03

  Before Rails 8 we always used something like the devise gem for authentication. Even though Rails has all the features to build authentication, It was difficult to implement compared to devise gem. Rails 8 addresses this problem with an authentication generator. One good thing about this is that it is completely optional as a generator. You can still go with other authentication providers or build it yourself. The Rails 8 authentication generator includes login, logout, and password reset features. But interestingly it does not include a user registration feature. As per DHH, it is because “those are usually bespoke to each application”. But it is easy to implement. I have created a Rails app template for basic user registration generation. You can easily generate user registration using that.

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• How to Add PostgreSQL Index based on Query Plan as a Rails Developer

  Published on 2024/08/24

  As Rails developers, we often focus on writing clean, efficient Ruby code. However, as the application grows optimizing database performance is equally crucial for creating responsive applications. One of the most powerful tools in our arsenal for database optimization is indexing. Here I will talk about PostgreSQL indexing from a Rails developer’s perspective. The query plan generated by EXPLAIN will help us to make informed decisions about index creation, ensuring our database queries run as efficiently as possible.

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• Understanding The Output of EXPLAIN As a Rails Developer

  Published on 2024/08/05

  Rails Active Record is a powerful ORM that simplifies database operations, but complex queries can sometimes lead to performance issues. We can use EXPLAIN to find out details about why a query is not performing well. In this post, we’ll explore the Active Record Explain feature and how to understand it’s output. We’ll cover the basics of using Explain, interpreting its output, and give you some hints on applying that knowledge to optimize your database queries. EXPLAIN is a database-level feature. We will be using PostgreSQL for this post. EXPLAIN provides insights into how the database executes your queries, helping you identify and resolve performance issues.

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• Cheat Sheet for Rails + PostgreSQL Count Performance

  Published on 2024/07/31

  The convenience and power of Active Record allows you to interact with your database in a more Ruby-like way, making it easier to write efficient and readable code. However, as with any complex system, performance can sometimes take a hit when using Active Record. One common scenario where performance may suffer is when counting records in your database. In any Rails app, A simple count method call can quickly become a bottleneck, especially for larger datasets. In this post, we’ll dive into some optimization techniques for using Active Record’s count method in your Rails app.

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• Building Custom Generators in Rails

  Published on 2024/07/28

  In Ruby on Rails, A generator is a tool that helps create scaffolding (basic code structure). By default, Rails provides several built-in generators like rails generate scaffold, rails generate controller, etc. Many of the gems come with their own Rails generators too.

  A custom generator is used to create a customized scaffolding for your application. Custom generators in Rails allow developers to create their code generators to streamline repetitive tasks and enforce consistency across the codebase.

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