i don't know the Brakeman gem but you can use a bijective transformation to append your referencing model attributes to the filename so Brakeman does not worry about. 

Or you can generate some kind of unique hashkey for your model attribute which is stored somewhere (else) along with the model attribute so you can look up later the model attribute then presenting the hashkey.    

Brakeman: model attribute used in file name warnings
Here are some common definitions from a dictionary for ‘literal’:


Being in accordance with, conforming to, or upholding the exact or primary meaning of a word or words.
Word for word; verbatim: a literal translation.
Avoiding exaggeration, metaphor, or embellishment; factual; prosaic: a literal description; a literal mind.


So what does it mean then to ‘take the Bible literally?’ Which definition are we referring to when we say ‘I take the Bible literally?’
