DRY up Ruby ternary

Posted by Reed G. Law on Stack Overflow See other posts from Stack Overflow or by Reed G. Law
Published on 2011-01-07T22:25:24Z Indexed on 2011/01/07 22:53 UTC
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ruby

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conditional

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ternary-operator

I often have a situation where I want to do some conditional logic and then return a part of the condition. How can I do this without repeating the part of the condition in the true or false expression?

For example:

ClassName.method.blank? ? false : ClassName.method

Is there any way to avoid repeating ClassName.method?

Here is a real-world example:

PROFESSIONAL_ROLES.key(self.professional_role).nil? ? 
    948460516 : PROFESSIONAL_ROLES.key(self.professional_role)

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