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我有興趣使用mysql數據庫創建rails應用程序。我是新來的導軌和我只是想開始創建一些簡單：將簡單的rails數據庫遷移到mysql
rails -d mysql MyMoviesSQL
cd MyMoviesSQL
script/generate scaffold Movies title:string rating:integer
rake db:migrate
我看到下面的錯誤：
rake aborted!
NoMethodError: undefined method `ord' for 0:Fixnum: SET NAMES 'utf8'
，如果我做了跟蹤：
** 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
這裏是我的版本：
rails - 2.3.5
ruby - 1.8.6
寶石列表
*** 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)
另外，如果我需要一個補丁添加到Fixnum對象，可有人告訴該文件中添加補丁。
感謝您的幫助
另外，對於script/generate腳手架，您應該使用小寫單數形式的模型名稱。 IOW，腳本/生成電影標題：字符串...而不是電影 – Fred 2010-04-24 21:55:53
另外，你是否安裝了'gem install mysql'的mysql.rb驅動程序？我沒有在寶石列表中看到它，儘管你顯然有一些mysql_adapter存在。 – Fred 2010-04-24 22:11:55