ruby-1.9.3

After createing a brand new rails app Following the official rails blog post , attempting to convert apps to rails 3.2.0.rc2 yields the following Updated Gemfile to depend on rails ~> 3.2.0.rc2 gem 'rails', '~>3.2.0.rc2' Updated Gemfile to depend on sass-rails ~> 3.2.3 gem 'sass-rails', '~> 3.2.3' $ bundle install Fetching source index for http://rubygems.org/ Bundler could not find compatible versions for gem "activesupport": In snapshot (Gemfile.lock): activesupport (3.1.1) In Gemfile: rails (~> 3.2.0.rc2) ruby depends on activesupport (= 3.2.0.rc2) ruby Running `bundle update` will rebuild

I tried this tip: https://github.com/thoughtbot/laptop/pull/14#issuecomment-3192270 . On deploy I see -----> Using RUBY_VERSION: ruby-1.9.3-p0 But my logs show the environment variable is not respected INFO ruby 1.9.2 (2011-07-09) [x86_64-linux] Hacky / experimental solutions accepted! Edit: I am on the cedar stack. Here's an update for everyone referencing this question... Heroku now allows you to specify your ruby version in your Gemfile, thanks to their addition to the latest version of bundler. First run: gem install bundler --pre then add ruby '1.9.3' to your Gemfile as such. source 'http

I have a simple ActiveRecord model called Student with 100 records in the table. I do the following in a rails console session: ObjectSpace.each_object(ActiveRecord::Base).count # => 0 x = Student.all ObjectSpace.each_object(ActiveRecord::Base).count # => 100 x = nil GC.start ObjectSpace.each_object(ActiveRecord::Base).count # => 0 # Good! Now I do the following: ObjectSpace.each_object(ActiveRecord::Base).count # => 0 x = Student.all.group_by(&:last_name) ObjectSpace.each_object(ActiveRecord::Base).count # => 100 x = nil GC.start ObjectSpace.each_object(ActiveRecord::Base).count # => 100 #

Trying to install 1.9.3 using RVM. Getting these errors in my make.log compiling readline.c readline.c:1499:9: error: use of undeclared identifier 'username_completion_function'; did you mean 'rl_username_completion_function'? rl_username_completion_function); ^ readline.c:69:42: note: expanded from macro 'rl_username_completion_function' # define rl_username_completion_function username_completion_function ^ /usr/local/include/readline/readline.h:443:14: note: 'rl_username_completion_function' declared here extern char *rl_username_completion_function PARAMS((const char *, int)); ^ 1 error

When using RBConfig to determine my ruby version, I get the "wrong" teeny version when using ruby 1.9.3: # ruby -v ruby 1.9.3p286 (2012-10-12 revision 37165) [i686-linux] # ruby -rrbconfig -e 'puts RbConfig::CONFIG.fetch(%q(MAJOR))' 1 # ruby -rrbconfig -e 'puts RbConfig::CONFIG.fetch(%q(MINOR))' 9 # ruby -rrbconfig -e 'puts RbConfig::CONFIG.fetch(%q(TEENY))' 1 Using Ruby 1.8.7 - this works fine: $ ruby -v ruby 1.8.7 (2012-06-29 patchlevel 370) [x86_64-linux] $ ruby -rrbconfig -e 'puts Config::CONFIG.fetch(%q(MAJOR))' 1 $ ruby -rrbconfig -e 'puts Config::CONFIG.fetch(%q(MINOR))' 8 $ ruby

Our ruby on rails site has a URI that one of our partners POSTs XML data to. Since we don't want to deal with XML, we literally just stuff the raw data into a database column and don't go any further with processing it. However, one of the posts we received gave us this error in airbrake: ArgumentError: invalid %-encoding ("http://ns.hr-xml.org/2004-08-02" userId="" password=""><BackgroundReportPackage type="report"> <ProviderReferenceId>.... With backtrace: vendor/ruby-1.9.3/lib/ruby/1.9.1/uri/common.rb:898:in `decode_www_form_component' vendor/bundle/ruby/1.9.1/gems/rack-1.4.5/lib/rack/utils

How do the following quantifiers differ - with respect of scenarios, speed, etc. ? , ?? and ?+ all match 0 or 1 times . * , *? and *+` all match 0 or more times . + , +? and ++ all match 1 or more times . ? , * and + are greedy . ?? , *? and +? are reluctant/lazy . ?+ , *+ and ++ are possessive . Can anyone help me to understand what these terms mean? Why are there three variations of each quantifier for the same job? Take the string aaaab and see how the following regexes match it: Regex Submatches group 1 group 2 group3 (a?)(a*)(ab) a aa ab (a??)(a*)(ab) aaa ab (a?+)(a*)(ab) a aa ab (a*)(a?)