Ruby symbol to class Ruby symbol to class ruby ruby

Ruby symbol to class


ruby class transform symbols

There are many ways to do this. Your lack of context makes it impossible to elect a "best" way. Here's a few ayways.

Kernel.const_get(:Bob)eval(:Bob.to_s)Kernel.const_get(:bob.to_s.capitalize)

ruby class transform symbols

Rails

For use with Rails only.

With a string:

"Module".constantize #=> Module"Class".constantize #=> Class

With a symbol:

:module.to_s.classify.constantize #=> Module:open_struct.to_s.classify.constantize #=> OpenStruct

If you are dealing with a multi-word symbol, then you'll want to add #classify to the chain to properly handle the capitalization of all the parts of the constant.

http://api.rubyonrails.org/classes/ActiveSupport/Inflector.html#method-i-constantize

ruby class transform symbols

None of the solutions I've seen work if you want to turn :foo_bar into FooBar. If that's what you're looking for:

:foo_bar.to_s.split("_").collect(&:capitalize).join.constantize
=> FooBar

hope that helps someone.

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