我想消除的反模式是：
- if !current_user
# do something
- if !member
# do something else
- if admin
# blah blah blah
- else
# Bored now.
我怀疑答案与视图助手和部分有关，但我想知道一些最佳实践和设计模式是什么。谢谢
我通过我的控制器做了很多事情：
before_filter :require_user
def require_user
unless current_user
store_location
flash[:notice] = "You must be logged in to access this page"
redirect_to login_url
return false
end
end
但根据您的角色（管理员、用户、成员），您可以执行相同的任务。这样，在渲染视图之前，您将重新控制它们的方向。
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