You can define methods using def or define_method. In the real world, there is no performance difference.
You can download .gem files using gem fetch: gem fetch activesupport consul This will produce files like active-support-5.0.0.gem and consul-0.12.1.gem...
#dig lets you easily traverse nested hashes, arrays, or even a mix of them. It returns nil if any intermediate...
As your Rails project grows, you will accumulate a number of small patches. These will usually fix a bug in...
This gem gives you a rake task db:seed:dump do create a db/seeds.rb from your current database state.
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...