Rake task to reprocesses all attachments for given class

reprocess_paperclip_attachments.rake

namespace :paperclip do
  desc "Reprocesses all attachments for given class"
  # rake paperclip:reprocess[User,800,'where','some_sort_of_scope_or_filter IS true']
  task :reprocess, [:class, :batch_size, :where, :clause] => :environment do |t, args|
    klass = args[:class].constantize
    batch_size = args[:batch_size]&.to_i || 100
    records = klass.all
    records = klass.send(args[:where], args[:clause]) if args[:where] && args[:clause]

    records.find_in_batches(batch_size: batch_size) do |group|
      PaperclipReprocessWorker.perform_async(klass, group.map(&:id))
    end
  end
end