migration de la base de données de rails simples vers mysql

Question

Je suis intéressé par la création d'une application rails avec une base de données mysql. Je suis nouveau sur les rails et je suis juste en train de commencer à créer quelque chose de simple:

rails -d mysql MyMoviesSQL 
cd MyMoviesSQL 
script/generate scaffold Movies title:string rating:integer 
rake db:migrate 

je vois l'erreur suivante:

rake aborted! 
NoMethodError: undefined method `ord' for 0:Fixnum: SET NAMES 'utf8' 

si je fais une trace:

** Invoke db:migrate (first_time) 
** Invoke environment (first_time) 
** Execute environment 
** Execute db:migrate 
rake aborted! 
NoMethodError: undefined method `ord' for 0:Fixnum: SET NAMES 'utf8' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract_adapter.rb:219:in `log' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:323:in `execute' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:599:in `configure_connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:594:in `connect' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:203:in `initialize' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:75:in `new' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:75:in `mysql_connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout' 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve_connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve_connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:435:in `initialize' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:400:in `new' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:400:in `up' 
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:383:in `migrate' 
/Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/tasks/databases.rake:116 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain' 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run' 
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/bin/rake:31 
/usr/bin/rake:19:in `load' 
/usr/bin/rake:19 

ici sont mes versions:

rails - 2.3.5 
ruby - 1.8.6 

Liste des pierres précieuses

*** LOCAL GEMS *** 

actionmailer (2.3.5, 1.3.6) 
actionpack (2.3.5, 1.13.6) 
actionwebservice (1.2.6) 
activerecord (2.3.5, 1.15.6) 
activeresource (2.3.5) 
activesupport (2.3.5, 1.4.4) 
acts_as_ferret (0.4.1) 
capistrano (2.0.0) 
cgi_multipart_eof_fix (2.5.0) 
daemons (1.0.9) 
dbi (0.4.3) 
deprecated (2.0.1) 
dnssd (0.6.0) 
fastthread (1.0.1) 
fcgi (0.8.7) 
ferret (0.11.4) 
gem_plugin (0.2.3) 
highline (1.2.9) 
hpricot (0.6) 
libxml-ruby (0.9.5, 0.3.8.4) 
mongrel (1.1.4) 
needle (1.3.0) 
net-sftp (1.1.0) 
net-ssh (1.1.2) 
rack (1.0.1) 
rails (2.3.5) 
rake (0.8.7, 0.7.3) 
RedCloth (3.0.4) 
ruby-openid (1.1.4) 
ruby-yadis (0.3.4) 
rubygems-update (1.3.6) 
rubynode (0.1.3) 
sqlite3-ruby (1.2.1) 
termios (0.9.4) 

aussi, si je dois ajouter un patch pour FIXNUM, quelqu'un peut-il s'il vous plaît dire quel fichier pour ajouter le patch.

Merci pour votre aide

Answer 1

installé le joyau mysql

*** LOCAL GEMS *** 

actionmailer (2.3.5, 1.3.6) 
actionpack (2.3.5, 1.13.6) 
actionwebservice (1.2.6) 
activerecord (2.3.5, 1.15.6) 
activeresource (2.3.5) 
activesupport (2.3.5, 1.4.4) 
acts_as_ferret (0.4.1) 
autotest (4.2.9) 
autotest-fsevent (0.2.2) 
autotest-growl (0.2.3) 
autotest-rails (4.1.0) 
capistrano (2.0.0) 
cgi_multipart_eof_fix (2.5.0) 
daemons (1.0.9) 
dbi (0.4.3) 
deprecated (2.0.1) 
dnssd (0.6.0) 
fastthread (1.0.1) 
fcgi (0.8.7) 
ferret (0.11.4) 
gem_plugin (0.2.3) 
highline (1.2.9) 
hpricot (0.6) 
libxml-ruby (0.9.5, 0.3.8.4) 
mongrel (1.1.4) 
mysql (2.8.1) 
needle (1.3.0) 
net-sftp (1.1.0) 
net-ssh (1.1.2) 
rack (1.0.1) 
rails (2.3.5) 
rake (0.8.7, 0.7.3) 
RedCloth (3.0.4) 
rspec (1.3.0) 
rspec-rails (1.3.2) 
ruby-openid (1.1.4) 
ruby-yadis (0.3.4) 
rubygems-update (1.3.6) 
rubynode (0.1.3) 
sqlite3-ruby (1.2.1) 
sys-uname (0.8.4) 
termios (0.9.4) 
ZenTest (4.3.1) 

se produisant encore

rake db: migrate

râteau avorté! NoMethodError: méthode indéfinie `ord 'pour 0: Fixnum: SET NAMES' utf8 '