Ruby Reports
Ruport’s acts_as_reportable module provides support for using ActiveRecord for data collection. You can use it to get a Ruport::Data::Table from an ActiveRecord model. This cheatsheet covers the basic functionality of acts_as_reportable and some common use cases.
Related cards:
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...
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 RubyGems binary version for all installed Ruby versions
rbenv
To check which rubygems versions your different rbenv rubys are using, you can use this small bash script:
for i in $(rbenv versions --bare); do rbenv shell "${i}"; echo -n "ruby ${i} has gem version: "; gem -v; done
RVM
``...
edgecase's ruby_koans at master - GitHub
The Ruby Koans walk you along the path to enlightenment in order to learn Ruby. The goal is to learn the Ruby language, syntax, structure, and some common functions and libraries. We also teach you culture. Testing is not just something we pay lip...
RubySpec - The Standard You Trust
RubySpec is a project to write a complete, executable specification for the Ruby programming language.
Objective-C for Rubyists | PeepCode Screencasts for Web Developers and Alpha Geeks
If you know Ruby and you want to write applications for Mac OS X or the iPhone, you’re in a great place to start! This concise and content-packed 80-minute screencast will teach you what you need to know to start programming in Objective-C.
RubyMine: Set specific Ruby version per project
If your project uses another version than your default Ruby, RubyMine will give you incorrect inspections, for example.\
Here is how to switch which Ruby you use in RubyMine.
- File → Settings (Or press
Ctrl+Alt+S) - Select "Ruby SDK and Gem...
Installing RubyGems for Ruby 1.8.6
Since version 1.5 RubyGems requires at least Ruby 1.8.7. The last one working with Ruby 1.8.6 was RubyGems 1.4.2.
You get still download it from their servers and [install RubyGems]...
Fix [RubyODBC]Cannot allocate SQLHENV when connecting to MSSQL 2005 with Ruby 1.8.7. on Ubuntu 10.10
I followed this nice guide Connecting to MSSQL with Ruby on Ubuntu - lambie.org until I ran in the following errors:
irb(main):001:0> require "dbi"; ...