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RuntimeError (can't modify frozen String)

Joe Guerra asked in Rails

got this runtime error on heroku, it had been working fine...

I traced it down to this

add_breadcrumb 'category / ' << @title, categories_path

in my category controller (I've commented it out for now). Is there an alternative way to concat this so it doesn't cause an error?

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yes, i'm using that gem. Just stopped liking the way I concatenated the breadcrumb.

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What should add_breadcrumb 'category / ' << @title, categories_path output?

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it should add / category / + category title to my breadcrumb.

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How about something like this?

add_breadcrumb "category / #{@title}", categories_path

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