yesod-dsl-0.1.1.19: codegen/default-filter-field.cg

                "~{fieldName f}" -> case (PP.fromPathPiece $ filterJsonMsg_value fjm) of 
                    (Just v) -> where_ $ defaultFilterOp (filterJsonMsg_comparison fjm) (~{vn} ~{projectField isMaybe} ~{entityFieldTypeName e f}) (~{makeJust maybeLevel "(val v)"})
                    _        -> return ()