Ruby on Rails项目与Mysql数据库

我是ror的初学者。我正在研究Ubuntu。Ruby on Rails项目与Mysql数据库

我可以用默认数据库创建一个新的ror项目，没有任何问题，一切都是okey ..但我想创建一个具有mysql数据库的项目。

我使用这个命令：

railse new myproject -d mysql

然后，我把我的MySQL用户名和passwork在database.myl文件，但是当我尝试启动服务器，因此它不工作，我收到此错误信息：

=> Booting WEBrick 
=> Rails 3.2.13 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
Exiting 
/home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/mysql2-0.3.11/lib/mysql2/client.rb:44:in `connect': no implicit conversion of Fixnum into String (TypeError) 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/mysql2-0.3.11/lib/mysql2/client.rb:44:in `initialize' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/mysql2_adapter.rb:16:in `new' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/mysql2_adapter.rb:16:in `mysql2_connection' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_connection' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels) in checkout' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `loop' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout' 
    from /home/mehmet/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/monitor.rb:211:in `mon_synchronize' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:239:in `checkout' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:102:in `block in connection' 
    from /home/mehmet/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/monitor.rb:211:in `mon_synchronize' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:101:in `connection' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connection' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve_connection' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/connection_specification.rb:145:in `connection' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/railtie.rb:88:in `block in <class:Railtie>' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing' 
    from /home/mehmet/Desktop/ror/neistersin/config/environment.rb:5:in `<top (required)>' 
    from /home/mehmet/Desktop/ror/neistersin/config.ru:3:in `require' 
    from /home/mehmet/Desktop/ror/neistersin/config.ru:3:in `block in <main>' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize' 
    from /home/mehmet/Desktop/ror/neistersin/config.ru:in `new' 
    from /home/mehmet/Desktop/ror/neistersin/config.ru:in `<main>' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:40:in `eval' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:40:in `parse_file' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/server.rb:200:in `app' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands/server.rb:46:in `app' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/server.rb:304:in `wrapped_app' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/server.rb:254:in `start' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands/server.rb:70:in `start' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap' 
    from /home/mehmet/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>'

来源

2013-04-22 Mehmet

它可能在你的database.yml文件错字的错误，我可以看到你的database.yml文件 – bernabas 2013-04-22 20:55:48

是，请您出示的database.yml内容 - 但不要告诉我们你的真实用户名和密码 – weltschmerz 2013-04-22 20:57:37

'测试：适配器：mysql2 编码：UTF8 重新连接：假数据库：neistersin_test 池：5 用户名：root密码：123456 插座：在/ var /运行/ mysqld的/ mysqld.sock' 同为生产和测试 – Mehmet 2013-04-22 21:06:07

在database.yml中：

密码：123

应该是

密码： '123'

注：“

这可能不是最终的解决方案，但对接近问题的第一步。

来源

2013-09-11 01:20:22

Ruby on Rails项目与Mysql数据库

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