stretchkennedy

# Add postgresql repo and update apt listing
echo "deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main" | sudo tee /etc/apt/sources.list.d/pgdg.list > /dev/null
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get install postgresql-9.4 -y

# Stop all running postgresql servers -- needed for migration of 9.3 data to 9.4 (pg_upgrade execution)
sudo /etc/init.d/postgresql stop

stretchkennedy

# First configure your models to use Amazon s3 as storage option and setup the associated S3 config.
# Then add the classes your want to migrate in the klasses array below.
# Then run rake paperclip_migration:migrate_to_s3
# Should work but this is untested and may need some tweaking - but it did the job for me.

namespace :paperclip do
  desc "migrate files from local filesystem to s3"
  task :migrate_to_s3 => :environment do

    Rails.application.eager_load!