rubygems

问题 Best practice to Override a class method of the gem in rails Application ? . I need to override the behaviour of the find method of a gem. following is the code in the gem module Youtube class display attr_accessor :base def find(id, options = {}) detailed = convert_to_number(options.delete(:detailed)) options[:detailed] = detailed unless detailed.nil? base.send :get, "/get_youtube", options.merge(:youtube_id => id) end end end How do i override the above find method in my YoutubeSearch

问题 Might sound like a simple question, but I'm stumped. I've created a gem that essentially contains a generator. It contains the following structure: lib - generators - my_generator my_generator_generator.rb (see below) - templates my_template_files... - my_generator.rb (empty file) test -test files GemFile etc.. However when I add this Gem to my gem file and run rails g, it's not listed. Is there any additional config that I need to do? My generator roughly looks like this... class

问题 I am using ActiveAdmin gem in my project. I have 2 models using has_many through association. The database schema looks exactly the same as the example in RailsGuide. http://guides.rubyonrails.org/association_basics.html#the-has_many-through-association (source: rubyonrails.org) How can I use ActiveAdmin to ... show appointment date of each patient in physicians page? edit appointment date of each patient in physicians page? Thanks all. :) 回答1: For 1) show do panel "Patients" do table_for

问题 Say I have two versions of a gem installed (somegem versions 0.10.6 and 0.10.5) and I want to run the earlier version from the commandline. Do I have to uninstall the newer version? Is there a way I can use a flag to specify which version I want to use? Something like... somegem /path/to/dir --version 0.10.5 I checked the rubygems documentation, and it only describes how to use a specific version when you require a gem from a file, but nothing about how to do it from the commandline. 回答1:

问题 How can i override current_user of devise gem. Actually I need to add web services for mobile-app. Currently devise is managing session and 'current_user' for web-application. Now Mobile app will send user_id to the server. I need to override current user like this def current_user if params[:user_id].blank? current_user else User.find(params[:user_id]) end end Should I need to modify devise gem as plugin ? or something else ? Kindly explain in detail as I am new in rails. Kind regards, 回答1:

问题 I've just moved over to Ubuntu 8.10 as my dev box; it's my first serious foray into Linux as a daily-use OS, and I'm having a hard time getting Rails going. I have followed a number of tutorials which all seem to work fine, but when I try and use gem install or gem update on anything, I get an error that looks like this: /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- zlib (LoadError) from /usr/local/lib/ruby/site_ruby/1.8

问题 I have recently run updates: gem update --system gem update Now, I come with a lot of deprecation warnings each time I load a gem. For example, rails console : NOTE: Gem::Specification#default_executable= is deprecated with no replacement. It will be removed on or after 2011-10-01. Gem::Specification#default_executable= called from /Users/user/.rvm/gems/ruby-1.9.2-p180@global/specifications/rake-0.8.7.gemspec:10. NOTE: Gem::Specification#default_executable= is deprecated with no replacement.

问题 I have installed a gem on my Rails application (devise). After I installed the gem, I realized that I don't need it. I want to remove the gem, its dependencies and the files it created on my application. In other words, I want to restore the system to what it used to be before the gem. How can I do this? (I'm using Ruby on Rails 3.) 回答1: Devise uses some generators to generate views and stuff it needs into your application. If you have run this generator, you can easily undo it with rails

问题 Is possible have a git branch dependency, inside mygem.gemspec? I'm thinking something similar to the following: gem.add_runtime_dependency 'oauth2', :git => 'git@github.com:lgs/oauth2.git' ... but it doesn't work. 回答1: This is not possible, and likely never will be because it would be rather heavy-handed for RubyGems to allow gem developers to require that users have a specific version control system installed to access a gem. Gems should be self-contained with a minimal number of

问题 I'm getting an error after compiling Ruby 1.8.7 using RVM on Lion 10.7.1 with Xcode 4.2 GM (new MacBook). It compiles fine but when I try to install any gem I get the following: gem install bundler /Users/me/.rvm/rubies/ruby-1.8.7-p352/lib/ruby/1.8/timeout.rb:60: [BUG] Bus Error ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-darwin11.1.0] Abort trap: 6 Update : In the end I hope to have Xcode 4.2 installed, RVM with Ruby 1.8.7, 1.9.x installed and all working properly. 回答1: Since I had to parse