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Why puma workers constantly hung, and how we fixed by discovering the bug of Ruby v2.5.8 and v2.6.6

Why puma workers constantly hung, and how we fixed by discovering the bug of Ruby v2.5.8 and v2.6.6 While running Rails puma servers in production, we were seeing the incident that some old worker processes suddenly got stuck regardless of no change in the amount or trend of requests.I found out the root cause and reported it to the upstream. Th...

Form objects decoupled from models.

Form objects decoupled from models. Form objects decoupled from your models.Reform gives you a form object with validations and nested setup of models. It is completely framework-agnostic and doesn't care about your database.Although reform can be used in any Ruby framework, it come...

RUBY 494: Reducing Friction at the Authorization Layer with John Nunemaker | Devchat.tv

RUBY 494: Reducing Friction at the Authorization Layer with John Nunemaker | Devchat.tv Dave Kimura, Luke Stutters, and John Epperson talk with John Nunemaker about Rails Authorization. John dives into the Pundit and how he had created a wrapper around the authorization to provide meaningful messages to his application layer.

How and when to use Ruby case statements

How and when to use Ruby case statements Using the case expression in Ruby is a great way to write conditionals in a clear, and succinct way. Despite that, it’s not hard to encounter convoluted if constructs in places where refactoring to the case statement would result in huge improveme...

Should You Use Rails Concerns?

Should You Use Rails Concerns? Concerns are something that every Ruby on Rails developer has probably heard of. Whenever you create a brand new project in ruby on rails, a default directory named `app/controllers/concerns` and `app/models/concerns` is created, yet many people f...

A VCR WebMock "hello world" tutorial - Code with Jason

A VCR WebMock "hello world" tutorial - Code with Jason One of the principles of testing is that tests should be deterministic. The passing or failing of a test should be determined by the content of the application code and nothing else. All the tests in the test suite should pass regardless of what o...

Bundler 2.2.3 and deployment of Ruby apps

Bundler 2.2.3 and deployment of Ruby apps As per the warning it seems that my Gemfile was generated for Mac OS X but I am deploying to Linux and it was raising a flag. Kudos to Heroku buildpack to raise a user friendly error message!A lot of gems such as nokogiri ship platform specific re...

Ruby Shuffle Method

Ruby Shuffle Method Ruby has a bunch of useful built-in methods for manipulating Arrays; here we are looking at the Shuffle method which takes an array and returns a new array with the order of elements shuffled..

HexaPDF - HexaPDF 0.15.0

HexaPDF - HexaPDF 0.15.0 This release brings support for flattening annotations, i.e. making the appearances of annotations part of the page content itself.Since AcroForm fields also use annotations for their visual display, this functionality also allows flattening of fo...

Exploring the super keyword in Ruby

Exploring the super keyword in Ruby It seems that the super keyword in Ruby is a straightforward thing; it simply calls the same method from a parent. However, many developers are still not aware of all the features that the super keyword provides. This article is not a long one, b...

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