Miles to go ...
Arun Gupta is a GlassFish Evangelist focusing on Web Tier at Sun. He was the spec lead for APIs in the Java platform, committer in multiple Open Source projects, participated in standard bodies and contributed to Java EE and SE releases.
Tuesday October 16, 2007
TOTD #14: How to generate JRuby-on-Rails Controller on Windows (#9893)
The current Rails Gem (version 1.2.5) gives an error when creating a Controller in a JRuby-on-Rails application on Windows. It gives the following error during controller creation as shown below:
C:/testbed/ruby/jruby-1.0.1/lib/ruby/1.8/pathname.rb:420:in
`realpath_rec': No such file or directory -C:/testbed/ruby/jruby-1.0.1/samples/rails/hello/C:
(Errno::ENOENT)
from C:/testbed/ruby/jruby-1.0.1/lib/ruby/1.8/pathname.rb:453:in
`realpath'
from C:/testbed/ruby/jruby-1.0.1/lib/ruby/gems/1.8/gems/rails-1.2.4/lib/initializer.rb:543:in
`set_root_path!'
from C:/testbed/ruby/jruby-1.0.1/lib/ruby/gems/1.8/gems/rails-1.2.4/lib/initializer.rb:509:in
`initialize'
from ./script/../config/boot.rb:35:in `new'
from ./script/../config/boot.rb:35:in `run'
from ./script/../config/boot.rb:35
from :1:in `require'
from :1
and Rails 1.2.4 gives exactly the same error. This is Ticket #9893. This actually happens because of JRUBY-1401.
The workaround is to use Rails 1.2.3. If you have already installed the latest Rails plugin, then you can uninstall it using the command:
C:\testbed\ruby\jruby-1.0.1\bin>gem uninstall rails
Successfully uninstalled rails version 1.2.5
Remove executables and scripts for
'rails' in addition to the gem? [Yn] y
Removing rails
And then install Rails 1.2.3 as:
gem install rails --include-dependencies --version 1.2.3
--no-ri --no-rdoc
Successfully installed rails-1.2.3
Successfully installed activesupport-1.4.2
Successfully installed activerecord-1.15.3
Successfully installed actionpack-1.13.3
Successfully installed actionmailer-1.3.3
Successfully installed actionwebservice-1.2.3
Now create a new application as shown below:
jruby -S rails hello
And then create a controller as:
jruby script\generate controller say hello
exists app/controllers/
exists app/helpers/
create app/views/say
exists test/functional/
create app/controllers/say_controller.rb
create test/functional/say_controller_test.rb
create app/helpers/say_helper.rb
create app/views/say/hello.rhtml
Hope you find it useful and this bug is fixed in the next version of Rails.
Please leave suggestions on other TOTD that you'd like to see. A complete archive is available here.
Technorati: totd rubyonrails jruby windows
Posted by Arun Gupta in web2.0 | Comments[1]
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This is a personal weblog, I do not speak for my employer.
Posted by Arun Gupta's Blog on November 09, 2007 at 07:17 AM PST #