Get path to ActiveStorage file on disk

Question

I need to get the path to the file on disk which is using ActiveStorage. The file is stored locally.

When I was using paperclip, I used the path<

Answer 1

You can download the attachment to a local dir and then process it.

Supposing you have in your model:

has_one_attached :pdf_attachment

You can define:

def process_attachment      
   # Download the attached file in temp dir
   pdf_attachment_path = "#{Dir.tmpdir}/#{pdf_attachment.filename}"
   File.open(pdf_attachment_path, 'wb') do |file|
       file.write(pdf_attachment.download)
   end   

   # process the downloaded file
   # ...
end