openproject/app/controllers/principal_roles_controller.rb

class PrincipalRolesController < ApplicationController
  unloadable (PrincipalRolesController)

  def create
    principal_roles = create_principal_roles_from_params

    respond_to do |format|
      format.js do
        render(:update) do |page|
          principal_roles.each do |role|
            page.remove "principal_role_option_#{role.role_id}"
            page.insert_html :top, 'table_principal_roles_body',
                             :partial => "principal_roles/show_table_row",
                             :locals => {:principal_role => role}
          end
        end
      end
    end
  end

  def update
    @principal_role = PrincipalRole.find(params[:principal_role][:id])
    @principal_role.update_attributes(params[:principal_role])

    respond_to do |format|
      format.js do
        render(:update) do |page|
          if @principal_role.valid?
            page.replace "principal_role-#{@principal_role.id}",
                          :partial => "principal_roles/show_table_row",
                          :locals => {:principal_role => @principal_role}
          else
            page.insert_html :top, "tab-content-global_roles", :partial => 'errors'
          end
        end
      end
    end
  end

  def destroy
    principal_role = PrincipalRole.find(params[:id])
    user = Principal.find(principal_role.principal_id)
    global_roles = GlobalRole.all

    principal_role.destroy

    respond_to do |format|
      format.js do
        render(:update) do |page|
          page.remove "principal_role-#{params[:id]}"
          page.replace "available_principal_roles",
                        :partial => "users/available_global_roles",
                        :locals => {:user => user, :global_roles => global_roles}
        end
      end
    end
  end

  private

  def create_principal_roles_from_params
    role_ids = params[:principal_role][:role_id] ? [params[:principal_role].delete(:role_id)] : params[:principal_role].delete(:role_ids)
    roles = Role.find role_ids
    principal_roles = []
    role_ids.map(&:to_i).each do |role_id|
      role = PrincipalRole.new(params[:principal_role])
      role.role = roles.detect {|r| r.id == role_id}
      role.save
      principal_roles << role
    end
    principal_roles
  end
end