生产数据库不是由rake db创建的：创建命令

Question

Im a Rails初学者，并且在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 

然后我切换到项目文件夹，运行命令：

rake db:create 

但是，只有project_dev和创建project_test数据库。 project_production数据库在mysql中不存在。这里有什么问题？

请帮助 谢谢

Answer 1

也就是说它旨在方式。要创建生产数据库做：

RAILS_ENV=production rake db:create 

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

Answer 2

这是按照@iain的建议设计的。要创建所有数据库，请运行rake db:create:all。