Instead of using this hack you might want to use MariaDB 10.x which can work with both old and...
Tool to show you which gems are slow to load: ➜ git:(master) ✗ bundle exec bumbler [################################################# ] (49/65) travis-lint...
Stackprof is a sampling call-stack profile for Ruby 2.1+. Instead of tracking all method calls, it will simply collect...
Uses FFI and works all relevant operating systems. If you'd try to do it yourself, you'd have to...
Validations should be covered by a model's spec. This card shows how to test an individual validation. This is...
To install gems Bundler needs to be able to talk to https://api.rubygems.org. If you are behind a proxy you...
I got this error when running Rails 2.3 tests for Rails LTS. More stacktrace: NoMethodError: undefined method `cache' for Gem...
Note The maintenance mode is enabled on all application server as soon as the file /public/system/maintenance.html is present. Installation
The nokogiri gem provides different packages for several platforms. Each platform-specific variant ships pre-built binaries of libxml2, e.g...
Install this gem and stop using bundle exec or even Geordi's handy b. Yay!
When using Sidekiq in your application, you must write thread-safe code. This wiki page also lists gems that are...
I recommend to go straight to 2.1.5+ without intermediate steps. Otherwhise you burden yourself with unnecessary work of encoding problems...
Cucumber raises a Cucumber::Ambiguous if more than one step definitions match a step. Our new cucumber_priority gem provides...
As we get an exception notification, when a cron job fails, we wish to have the full backtrace in this...
When there's a Gemfile.lock in your working directory that you cannot remove by either checkout, reset [--hard], stash, probably...
I had a very frequent cronjob that in rare cases could be relatively slow. To avoid multiple instances of this...
When you're developing a gem, never list the same dependency as both runtime and development dependency in your .gemspec...
Sometimes you want to know exactly how many objects exist within your running Ruby process. Here is how: stats = {} ObjectSpace.each...
Starting with Rails 4.0, when you get an exception reported via the ExceptionNotification gem, you will only see a very...
Rails 5 will introduce ActiveRecord::Relation#or. On Rails 4 and 3.2 you can use the activerecord_any_of gem...
Method lookup Understand all the terms in How Ruby method lookup works, in particular: include extend singleton class
While debugging an intricate issue with failed HTTP requests I have come to appreciate the more advanced features of the...
If you have problems installing a gem and get a error collect2: error: ld returned 1 exit status it's...
Your MovieDB gained traction and is now a popular tool among cineasts. This comes with a downside: You noticed a...