Ruby On Rails

Tutorials

How to delete polymorphic models cascade

How to delete polymorphic models cascade You will not be able to add the usual foreign keys for cascading delete records. But this can be implemented using a database.To do this, you need to write a trigger in the database that will run the delete function for each record.clas...

Dependency Injection in Ruby 🌈

Dependency Injection in Ruby 🌈 I once wrote an article on Medium about dependency injection - Dependency Injection is not Scary!. Recently joined dev.to, I thought I'd bring my thoughts here as well.Okay Eli, I know how to dependency inject now thanks to the medium article. BUT...

Token Authentication with Rails, Vue, GraphQL and Devise

Token Authentication with Rails, Vue, GraphQL and Devise You’ve likely heard about the new kid on the block.

Use image files from S3 in WickedPdf

Use image files from S3 in WickedPdf If you need to use image files from S3 in your generated pdf file using WickedPdf, then you need first to download the image. You can create method that does this and add it to the helper.

Build Messaging Between Ruby/Rails Applications with ActiveMQ

Build Messaging Between Ruby/Rails Applications with ActiveMQ One of the tools that are rarely covered in the Ruby/Rails world are the message brokers (probably because they mostly written in Java). Everyone are familiar mostly with background jobs processing, but message brokers offer a more flexible approa...

How to TDD when TDD is hard

How to TDD when TDD is hard When test-driven development works well, it’s smooth and fluid, guiding you back and forth between test code and application code. It hints at what you need to do next—what to add, what to change, what to remove. And it does so quickly. The proces...

Upgrading Ruby on Rails from 3.2 to 4.2

Upgrading Ruby on Rails from 3.2 to 4.2 At work we’ve recently finished upgrading the Rails version from 3.2 to 4.2 of our legacy application created in 2011.I collected here the experience and the lessons I learned during the process along with some undocumented changes and solutions f...

RR 420: Stimulus

RR 420: Stimulus Today’s topic is the Stimulus library. Stimulus is actually a JavaScript framework and library, but it’s also built by Basecamp, so it works really well in Rails. There is a demand for rich client side interactions, and Stimulus fills in some of t...

Rails 6 adds hooks to Active Job around retries and discards

Rails 6 adds hooks to Active Job around retries and discards Before Rails 6Before Rails 6, we have to provide a custom block to perform custom logging and monitoring around retries and discards of the jobs defined using Active Job framework.

How to test Ruby methods that involve puts or gets

How to test Ruby methods that involve puts or gets What makes the ask_for_number method challenging to test is a dependency. Most methods can be tested by saying, “When I pass in argument X, I expect return value Y.” This one isn’t so straightforward though. This is more like “When the user sees o...

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