Question

The .capitalize! function doesn’t seem to work inside a model in Rails.

Is there a way around this? I have a valid business case for using this in a model by the way.

Here’s the code that’s throwing me an error:

def something
    ...
    str.strip
    str.capitalize!
end

Error I get is can't convert nil into String

Everything works find if I remove the last line.

Edit: Sorry, I had a brain fart! Fixed it.

Answer 1

What’s wrong with writing just
"string".capitalize! ?

It’s just a ruby String method, http://www.ruby-doc.org/core-1.9.3/String.html#method-i-capitalize-21

upd

and as it’s obvious now, the problem was the string you were trying to update was nil