cjcolvar

class RolesController < ApplicationController
  include Hydra::RoleManagement::RolesBehavior

  prepend_before_filter :accept_batches, only: [:destroy]

  def destroy
    @roles.each {|role| role.destroy}
    redirect_to roles_path, notice: "Successfully deleted groups: #{params[:ids].join(", ")}"
  end

mbklein

empty = ActiveFedora::SimpleDatastream.xml_template.to_xml

mf = MasterFile.find(pid)                 # Load the MasterFile.
if mf.workflow_id.present?
  begin
    Rubyhorn.client.stop(mf.workflow_id)  # Stop the existing workflow.
  rescue                                  # Keep going even if stopping the workflow fails.
  end                                     # This means there might be more cleanup later.
end
mf.mhMetadata.content = empty             # Remove all Matterhorn-related fields.