如何在新机器上为旧应用程序安装mysql？

Question

不太确定该怎么做。

我的应用程序的database.yml

development:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: application-dev
  pool: 5
  username: root
  password: angles123
  socket: /tmp/mysql.sock

我认为明智的做法是继续执行mysqladmin -u root --password=angles123，然后在内部创建数据库application-dev，但是-dev部分，mysql不满意。但我可以创建一个简单的应用程序数据库。

我可能还缺少其他东西吗？

我提出这个问题的原因是因为每当我尝试 rake db:migrate 或 script/server 时都会收到此错误

rake db:test:prepare
(in /Users/macuser/Sites/hq_channel)
rake aborted!
uninitialized constant Geocode

所以我假设我设置了错误的数据库，因为我显然已经安装了该 gem。

这是完整的堆栈跟踪：

rake aborted!
uninitialized constant Geocode
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:443:in `load_missing_constant'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:80:in `const_missing_not_from_s3_library'
/Users/macuser/Sites/hq_channel/vendor/gems/aws-s3-0.6.2/lib/aws/s3/extensions.rb:206:in `const_missing'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:92:in `const_missing'
/Users/macuser/Sites/hq_channel/config/initializers/geocode.rb:1
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:145:in `load_without_new_constant_marking'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:145:in `load'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:145:in `load'
/Users/macuser/Sites/hq_channel/config/../vendor/rails/railties/lib/initializer.rb:622:in `load_application_initializers'
/Users/macuser/Sites/hq_channel/config/../vendor/rails/railties/lib/initializer.rb:621:in `each'
/Users/macuser/Sites/hq_channel/config/../vendor/rails/railties/lib/initializer.rb:621:in `load_application_initializers'
/Users/macuser/Sites/hq_channel/config/../vendor/rails/railties/lib/initializer.rb:176:in `process'
/Users/macuser/Sites/hq_channel/config/../vendor/rails/railties/lib/initializer.rb:113:in `send'
/Users/macuser/Sites/hq_channel/config/../vendor/rails/railties/lib/initializer.rb:113:in `run'
/Users/macuser/Sites/hq_channel/config/environment.rb:21
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
/Users/macuser/Sites/hq_channel/vendor/rails/activesupport/lib/active_support/dependencies.rb:156:in `require'
/Users/macuser/Sites/hq_channel/vendor/rails/railties/lib/tasks/misc.rake:4
/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:607:in `invoke_prerequisites'
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each'
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites'
/Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:596: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

Answer 1

我安装的 mysql 不允许在数据库名称中使用下划线或破折号。

您可以尝试将数据库名称更改为 application，然后运行 ​​rake db:create 以查看它是否创建您的数据库。

另外，您可以尝试使用 --trace 运行 rake，以更好地了解导致该错误的位置所包含的内容。