Save attachments to custom table

[olegsobchuk]

I have separate table for attachment files with polymorphic association. Is it possible save attachment from messages to custom table like in my case?

[olegsobchuk]

Or maybe it is possible to save the original filename? according to CarrierWave documentation
https://github.com/carrierwaveuploader/carrierwave/wiki/how-to:-create-random-and-unique-filenames-for-all-versioned-files#saving-the-original-filename