Ruby on rails 在生产环境中将列添加到Rails数据库

我正在尝试在生产环境中向Rails应用程序添加列。无法在本地计算机上的开发环境中执行此操作，因为某些捆绑包上存在安装问题

我运行了以下命令：

sudo ruby script/generate migration add_provider_to_spots provider:string provider_price:string provider_ref:string RAILS_ENV=production

但这一错误突然出现：

/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/connection_specification.rb:62:in `establish_connection': development database is not configured (ActiveRecord::AdapterNotSpecified)
from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/connection_specification.rb:55:in `establish_connection'
from /usr/lib/ruby/gems/1.8/gems/rails-2.3.8/lib/initializer.rb:438:in `initialize_database'
.
.
.

有什么想法吗？谢谢。

这样试试

sudo RAILS_ENV=production ruby script/generate migration add_provider_to_spots provider:string provider_price:string provider_ref:string