生產數據庫不是由rake db創建的：創建命令

Question

Im a Rails初學者，並且在Ubuntu 10.10上使用Rails 3。我的database.yml如下。

development: 
    adapter: mysql 
    database: project_dev 
    username: root 
    password: rootpassword 
    host: localhost 

# Warning: The database defined as "test" will be erased and 
# re-generated from your development database when you run "rake". 
# Do not set this db to the same as development or production. 
test: 
    adapter: mysql 
    database: project_test 
    username: root 
    password: rootpassword 
    host: localhost 

production: 
    adapter: mysql 
    database: project_production 
    username: root 
    password: rootpassword 
    host: localhost 

然後我切換到項目文件夾，運行命令：

rake db:create 

但是，只有project_dev和創建project_test數據庫。 project_production數據庫在mysql中不存在。這裏有什麼問題？

請幫助 謝謝

Answer 1

也就是說它旨在方式。要創建生產數據庫做：

RAILS_ENV=production rake db:create 

而且，看看rake db:setup將運行任何程序放在db/seeds.rb。

Answer 2

這是按照@iain的建議設計的。要創建所有數據庫，請運行rake db:create:all。