RoR environment in Ruby standalone script
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22-07-2019 - |
Question
I want to run a standalone ruby script in which I need my RoR environment to be used. Specifically, I need my models extending ActionMailer and ActiveRecord. I also need to read the database configuration from my database.yml. How do I go about it?
Solution
The easiest way is to change the shebang of your script from :
#!/usr/bin/ruby
to
#!/path/to/your/rails/script/runner
Et voilà, your script will be run with the full rails environment loaded. You can also run your script as ./my_script -e production
to have it run with the production database.
OTHER TIPS
Check out this thread: How do I run Ruby tasks that use my Rails models?
Essentially it boils down to:
require "#{ENV['RAILS_ROOT']}/config/environment.rb"
Have fun!
I think the best way to do this is to make it a rake task.
# lib/tasks/mystuff.rake
desc 'do my stuff'
task :my_stuff => [:environment] do
# do my stuff
end
The [:environment] stanza loads the rails environment.