RubyRescue

In attempting to upgrade a Bort app with Rails 2.3.2, i’ve found two errors so far:

1. This OpenIdAuthentication error:

rake aborted!
uninitialized constant Rails::Plugin::OpenIdAuthentication
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:105:in `const_missing'
/home/chadd/foo/vendor/plugins/open_id_authentication/init.rb:16:in `evaluate_init_rb'

The solution is to comment out line 16 in vendor/plugins/open_id_authentication/init.rb when running rake db:migrate.

Updated: Better solution in the comments, thanks!

chadd@ubuntu:~/foo$ rake db:migrate --trace
(in /home/chadd/foo)
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:migrate
==  BortMigration: migrating ==================================================
-- create_table(:sessions)
   -> 0.0017s
-- add_index(:sessions, :session_id)
   -> 0.0004s
-- add_index(:sessions, :updated_at)
   -> 0.0003s
-- create_table(:open_id_authentication_associations, {:force=>true})
   -> 0.0021s
-- create_table(:open_id_authentication_nonces, {:force=>true})
   -> 0.0016s
-- create_table(:users)
   -> 0.0027s
-- add_index(:users, :login, {:unique=>true})
   -> 0.0006s
-- create_table(:passwords)
   -> 0.0017s
-- create_table(:roles)
   -> 0.0007s
-- create_table(:roles_users, {:id=>false})
   -> 0.0007s
==  BortMigration: migrated (0.5497s) =========================================

** Invoke db:schema:dump (first_time)
** Invoke environment
** Execute db:schema:dump
chadd@ubuntu:~/foo$

2. application.rb was renamed to application_controller.rb in Rails 2.3 and if you don’t rename it you get this error:

Loading development environment (Rails 2.3.2)
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:443:in `load_missing_constant':NameError: uninitialized constant ApplicationController

The twitter gem doesn’t do a good job of allowing unauthenticated queries, so I have to make a specific request to the twitter API to do this.

If you pass in Scrap.friendsandfollowers(‘rubyrescue’) you’ll get about 6000 ids. Anything better than a depth of ‘1′ and you’ll need an un-rate-limited account w/Twitter as it will take more than 100 requests and they limit requests to 100/hour.

require 'twitter'
require 'net/http'
require 'json'

class Scrap

  def self.friendsandfollowers(users,depth=0,type = :all)
    users = [users] unless users.is_a?(Array)

    puts "at level #{depth}"

    newusers = []
    [:friends,:followers].each do |t|
      if [:all,t].include?(type)
        users.each() do |u|
          puts "looking for #{t.to_s.pluralize} of #{u}"
          newusers += JSON.parse(Net::HTTP.get(URI.parse("http://twitter.com/#{t}/ids/#{u}.json")))
        end
      end
    end

    newusers.uniq!

    if depth == 0
      return newusers
    else
      newusers.each() do |u|
        users += self.friendsandfollowers(u,depth-1,type)
      end
      return users.uniq
    end

  end

end

http://locosxrails.com

I’m going… Anyone from Brazil other than Akita On Rails?