：轨道中的常量符号

Rails中有一个方法可以将符号转换为常量吗？ 我希望能够做类似的事情

:monkey.to_constant #=> Monkey 

目前我必须这样做

 :monkey.to_s.camelize.constantize 

这有点拗口。

Answer 1

 class Symbol def to_c self.to_s.camelize.constantize end end :monkey.to_c 

已更新为Rails> = 4

从Rails开始> = 4 .classify比.camelize更好用

 # .camelize with singular and plural symbols/strings :user.to_s.camelize.constantize # => User :users.to_s.camelize.constantize # => NameError: uninitialized constant Users # .classify with singular and plural symbols/strings :user.to_s.classify.constantize # => User :users.to_s.classify.constantize # => User