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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...

Why You Should Avoid Models in Rails Migrations

Why You Should Avoid Models in Rails Migrations Using AR Models in Rails migrations works but can have hidden problems. Learn why to avoid them and what to do instead.

Passenger 6.0.8

Passenger 6.0.8 Version 6.0.8 of the Passenger application server has been released. This release addresses several regressions, and provides better integration with systemd's PrivateTmp.Passenger 6, introduced Generic Language Support, or: the ability to support...

HTTP Caching in Ruby on Rails Applications

HTTP Caching in Ruby on Rails Applications A general way to describe caching is storing some data so that we can quickly retrieve it later. Sometimes, this means storing computed data so that it does not need to be re-computed, but it can also refer to storing data locally to avoid having ...

21 tips for building Rails applications

21 tips for building Rails applications This list is a collection of things I wish I knew when I was starting out as a Ruby on Rails developer. While I won't go in depth, this hopefully gives a good overview of things to look out for and some useful performance tips for anyone building ...

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