Book p19: ruby service.rb -p 3000 -e test

Hi Paul,

After getting the my previous issue to work (yay), the next command on p19 is to start the Sinatra test environment:

    ruby service.rb -p 3000 -e test

Every time it gave me an error of 'unknown adapter' or something (forgive my unspecificity here). Going back and forth and a lot of googling, I finally managed to narrow it down to ARGV. In service.rb, this sets up the environment:

    # setting up our environment
    env_arg = ARGV.index("-e")
    env = env_arg || ENV["SINATRA_ENV"] || "development"
    databases = YAML.load_file("config/database.yml")
    ActiveRecord::Base.establish_connection(databases[env])

Please correct me if I'm wrong, but my limited knowledge of Ruby tells me (or actually ruby-lang.org does) that the line

    env_arg = ARGV.index("-e")

returns an integer value. Then the line

    ActiveRecord::Base.establish_connection(databases[env])

cannot connect to the database, as it is expecting a string. I adjusted the culprit to

    env_arg = ARGV[ARGV.index("-e") + 1]

and now everything seems to be working copacetic.

I'd love to know if this is the right workaround, or that I should change something else.

Rgdz,
Oscar

P.S. after having adjusted the file as above, it gives me another error... if I change the line back to the original, then it works as expected:

    env_arg = ARGV.index("-e")

    with

    ruby service.rb -p 3000 SINATRA_ENV=test