ruby-on-rails - 来自 rake 任务的抽象逻辑

Question

这里是业余 ruby​​-ist...

我有一组看起来像这样的 rake 任务:

namespace :download do
  task :only do
     config = ActiveRecord::Base.configurations[Rails.env]

     username = config['username'] 
     password = config['password'] ? "-p#{config['password']}" : nil
  end
  task :environment do
     config = ActiveRecord::Base.configurations[Rails.env]

     username = config['username'] 
     password = config['password'] ? "-p#{config['password']}" : nil
  end
end

如何抽象“配置”逻辑(包括用户名和密码) 还是全局定义？

感谢您的帮助!

Answer 1

在你的任务添加之后

def config
  ActiveRecord::Base.configurations[Rails.env]
end

但你也可以这样做

def username
  config['username']
end

def password
  config['password'] ? "-p#{config['password']}" : nil
end