module CmAdmin::Models::DslMethod

def tab(tab_name, custom_action, associated_model: nil, layout_type: nil, layout: nil, partial: nil, &block)
  if custom_action.to_s == ''
    @current_action = CmAdmin::Models::Action.find_by(self, name: 'show')
    @available_tabs << CmAdmin::Models::Tab.new(tab_name, '', &block)
  else
    action = CmAdmin::Models::Action.new(name: custom_action.to_s, verb: :get, path: ':id/'+custom_action,
                layout_type: layout_type, layout: layout, partial: partial, child_records: associated_model,
                action_type: :custom, display_type: :page)
    @available_actions << action
    @current_action = action
    @available_tabs << CmAdmin::Models::Tab.new(tab_name, custom_action, &block)
  end
  yield if block
end