search for: s3_permiss

I am able to use Paperclip to save files to Amazon''s S3 storage. Once saved, the files are available using a URL associated with the bucket and filename. I have not been able to find a good tutorial which clearly explains how to save a file to S3 (using Paperclip) whereby it can only be retrieved using https, and only for a limited time period (which I understand is a function of S3).

Hi, I have been trying to do this for a few days now and cannot figure it out. I would be very grateful is anyone can help me I am trying to upload an attachment to AWS, S3 using paperclip, however every time I keep getting this error: ActiveRecord::AssociationTypeMismatch in ProjectController#create_notice Graphic(#37649720) expected, got Tempfile(#27280470) RAILS_ROOT: