Logging is important in any software development project because it helps to understand how the application is behaving and identify issues when they occur. The errors of an application cannot all be treated in the same way, as they have different levels of importance. Depending on where the error occurs in your application, it can be fatal to a process or just a warning.

Docker has become an industry standard. It allows developers to create, deploy, and run applications inside containers. In Rails 7.1, Dockerfiles are included by default. This makes it easier than ever to deploy Rails applications using Docker.

ActionMailer previews can now display all email headers. This allows developers to check all headers, when testing locally.

Polymorphic associations allow a single association to reference multiple models. In a polymorphic association, the association name is used to store the name of the associated model, and the _id and _type attributes are used to store the ID and type of the associated record. However, polymorphic associations can be challenging to work with when it comes to using select fields, especially when there are multiple types of associated models.

When working with dates in Rails, it’s common to want to find records that fall within a certain range of dates. For example, you might want to find all orders placed between two dates, or all events scheduled for a certain week.

In January, 2021 a bug was reported in Turbo that caused duplicate DOM elements. In this post we’ll explain the bug and how it was fixed.

ActiveRecord’s regroup method is a shorthand for using unscope to remove existing groups.

Rails makes a counter variable available within partials that are rendered with a collection. This variable follows the name of the collection. A @users collection has a counter called user_counter. The counter works like the index on an each loop. It counts the number of times a partial has been rendered. Let’s look at an example.

In the latest version of Rails, the production config file comes with logging which is configurable based on an environment variable.

Ruby 3.2 introduces the new feature syntax_suggest, formerly known as the gem dead_end, now integrated into Ruby. Catch and fix syntax errors are now more robust helping you to find the position of errors such as missing extra parentheses, commas, superfluous ends, errors such as missing or extra curly braces related to string interpolation, and semicolons.

Heroku recieved some negative press for the removal of it’s free tier. Render is a cheaper alternative that boasts many benefits over Heroku. We believe Heroku is still the quickest way to spin up a Rails app but Render is close behind and less than half the price.

Ruby 3.2 brings a convenient new addition that enables combining elements from various arrays or enumerable objects with ease. Enumerator::Product, one of the most convenient new methods, can be especially useful when working with large data sets or when generating combinations for testing purposes.

ActiveRecord is a core part of Rails, an ORM layer that sits on top of relational databases like Postgres or MySQL. However, it doesn’t natively support DynamoDB. Recently, we worked on a project to migrate part of a Rails app to Lambda functions. We began the migration by adding logic for writing to DynamoDB. Here’s how we did it.

As a Ruby developer, you have probably used the map method to transform arrays and other collections of data. But have you ever needed to transform an array and flatten the result in one go? This is where the flat_map method comes in.

In Ruby 2.4, a new method called transform_values was introduced to help transform hash values using a block. This method can be particularly useful when you need to modify the values in a hash without changing the keys.

In Rails 6.1, a new method called compact_blank was introduced to help filter out nil and blank elements from an array. This method can be particularly useful when working with form parameters, where some fields may be left blank or undefined.

Building a Rails controller is simple and well documented. Follow the ‘Rails way’ and your life is easy. However, webhook endpoints require a different approach. In this post you’ll learn how to build maintainable and secure webhook endpoints.

This tutorial explains how to send Slack messages from a Rails application.

This post explains how to iterate over the contents of an AWS S3 bucket and generate download links for each object. This example uses aws-sdk version 2. At the time of writing, version 3 is the latest but there’s still a lot of legacy apps that use v2.

Recently, we worked on deploying a legacy Rails app to Heroku. The minimum Ruby version that Heroku supports is 2.7.6. Apps running older versions must be upgraded before they can be deployed. Thankfully, this problem can be solved by deploying the app as a container. This post explains how to containerize an application and deploy it to Heroku.

In part 1 we built an admin panel and used Turbo Streams to make revenue dynamic. In this post we’ll continue building out the admin panel. We’ll implement tabs, using Turbo Frames, then finish up by making ‘real time orders’ dynamic.

In this series we are building an admin panel, using Hotwire. The admin panel will have multiple tabs and plenty of interactivity. Let’s get started.

Recently, we encountered a bug with some Stimulus code. We were trying to stream updates for a small partial and found that data only refreshed on the first update.

A dedicated software development team is a collaborating model in which a client engages an outsourced team of project managers, software developers, QA testers, and other specialists offered by the software development vendor.

In part 1 we built a Stimulus controller that tests a regex, however, there is a problem with that solution. Ruby and JavaScript regex implementations are slightly different. In our case, we want users to verify their regex using Ruby’s regex implementation. To do that, we need to evaluate the regex on the server side.