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Google Summer of Code winner: ActiveModel for Ruby on Rails
Finish the remainder of the ActiveModel todo list (observers, callbacks, validations, scoping, and serialization) in addition to associations. Also wire up ActiveModel up to ActiveRecord and ActiveResource.
Rubygems: Installing the last version of rubygems that has no rubyforge_project deprecation warning
You can install rubygems 3.0.8 (released on February 18, 2020) to keep all the Gem::Specification#rubyforge_project deprecation warnings away from your development log. With Rubygems >= 3.1 this deprecation warning was introduced. While main...
List of handy Ruby scripts to transcode different file types (often by using GPT)
It's 2024 and we have tools like ffmpeg, imagemagick and GPT readily available. With them, it's easy to convert texts, images, audio and video clips into each other.
For the everyday use without any parameter tweaking I'm using a collection of ti...
Use the "retry" keyword to process a piece of Ruby code again.
Imagine you have a piece of code that tries to send a request to a remote server. Now the server is temporarily not available and raises an exception. In order to re-send the request you could use the following snippet:
def remote_request
...
Precedence of Ruby operators
[ ] [ ]=**! ~ + -* / %+ ->> <<&^ |<= < > >=<=> == === != =~ !~&&||.. ...? := %= { /= -= += |= &= >>= <<= *= &&= ||= **=defined?not- `or...
List of Helpful RubyMine Shortcuts
Navigation
CTRL + SHIFT + ALT + N
: Search for any symbol in your application, like CSS classes, Ruby classes, methods, helpers etc.
CTRL + SHIFT + N
: Search for filename in your application (also dependencies)
CTRL + E
: Open...
Running external commands with Open3
There are various ways to run external commands from within Ruby, but the most powerful ones are Open3.capture3 and Open3.popen3. Since those can do almost everything you would possibly need in a clean way, I prefer to simply...
Debug Ruby code
This is an awesome gadget in your toolbox, even if your test coverage is great.
-
gem install ruby-debug(Ruby 1.8) orgem install debugger(Ruby 1.9) - Start your server with
script/server --debugger - Set a breakpoint by invoking `debugge...
Missing certificates for rubygems and bundler in Ruby 1.8.7
Using Ruby 1.8.7 you will not be able to use the maximum versions Rubygems 1.8.30 and Bundler 1.17.3 with https://rubygems.org/ anymore. This is a result of a server certificate on December 5th, 2020. The resulting errors will...