How do I run a Ruby script within the Rails framework (like I was in ./script/console)?

Rails
1

Hi,
Anyone know how do I run a Ruby script within the Rails framework (like
I
was in ./script/console)???

That is, I could do the same things I can do in the Rails console (e.g.
./script/console), however I can write a script file for this. I have
scripting some data fixes in mind.

Thanks

2

thanks - so I’m guessing then that “runner” will look in the /lib
directory
to try to find your file where the class exists? i.e. how does it pick
up
your script file path/filename?

3

On Mon, Jul 28, 2008 at 3:56 PM, Greg H.
[email protected] wrote:

Hi,
Anyone know how do I run a Ruby script within the Rails framework (like I
was in ./script/console)???
That is, I could do the same things I can do in the Rails console (e.g.
./script/console), however I can write a script file for this. I have
scripting some data fixes in mind.

script/runner “MyClass.my_data_fixes”

–
Greg D.
http://destiney.com/

4

On Mon, Jul 28, 2008 at 4:13 PM, Greg H.
[email protected] wrote:

thanks - so I’m guessing then that “runner” will look in the /lib directory
to try to find your file where the class exists? i.e. how does it pick up
your script file path/filename?

Magic?

I’d just build the stuff in a model file.

class MyClass < ActiveRecord::Base
def self.my_data_fixes
# do stuff here
end
end

Then run it like: script/runner “MyClass.my_data_fixes”

–
Greg D.
http://destiney.com/

5

Another approach is Rake. I don’t do it in the model un less it’s really
part of the app.

lib/tasks/setup.rake

namespace :setup do
desc “Set up initial roles in the database”
task :roles => :environment do

  # Drop any roles that might already be in the table
  puts "Removing any existing roles"
  Role.all.each do |r|
    r.destroy # forcing callbacks to cascade delete
  end

  puts "Creating roles..."
  Role.create :name => "User"
  Role.create :name => "Admin"

  # some other Ruby / Rails related code

end
end

rake setup:roles

The key here is that => :environment in the test declaration that brings
in
your Rails environment.

6

On Mon, Jul 28, 2008 at 4:13 PM, Greg H.
[email protected] wrote:

thanks - so I’m guessing then that “runner” will look in the /lib directory
to try to find your file where the class exists? i.e. how does it pick up
your script file path/filename?

script/runner --help

Usage: script/runner [options] (‘Some.ruby(code)’ or a filename)

-e, --environment=name           Specifies the environment for the

runner to operate under (test/development/production).
Default: development

-h, --help                       Show this help message.