Use heroku pgbackups to restore local database with staging/production data.

heroku.rake

APP_NAME = 'INSERT_DEVIL_WORSHIPPING_APP_NAME_HERE'

namespace :heroku do
  namespace :db do
    namespace :pull do
      desc "Pulls staging db to local."
      task :staging => :environment do
        pull_db_locally("#{APP_NAME}-staging", "#{APP_NAME}_development")
      end
      desc "Pulls production db to local."
      task :production => :environment do
        pull_db_locally("#{APP_NAME}-production", "#{APP_NAME}_development")
      end
    end
  end
end

def pull_db_locally(app_name, db_name)
  # capture db
  puts "Capturing backup of '#{app_name}' from heroku."
  `heroku pgbackups:capture -e -a "#{app_name}"`
  # grab the url
  url = `heroku pgbackups:url -a "#{app_name}"`
  # curl the db file locally
  puts "Copy db '#{url}' to 'db.dump'."
  `curl -o db.dump "#{url}"`
  # restore localhost from dump file
  puts "Restoring local db '#{db_name}' from 'db.dump'."
  `pg_restore -v -c -O -h localhost -d "#{db_name}" db.dump`
  # remove dump file
  puts "Removing temporary 'db.dump' file."
  `rm db.dump`
end