app/controllers/diagrams_controller.rb

@@ -6,6 +6,7 @@ class DiagramsController < ApplicationController

                     else
              

                       agents = current_user.agents
              

                     end
              

                +    @disabled_agents = agents.inactive
              

                     agents = agents.active unless params[:include_disabled].present?
              

                     @agents = agents.includes(:receivers)
              

                   end
              

app/models/agent.rb

@@ -60,7 +60,8 @@ class Agent < ActiveRecord::Base

                   has_many :scenario_memberships, :dependent => :destroy, :inverse_of => :agent
              

                   has_many :scenarios, :through => :scenario_memberships, :inverse_of => :agents
              

                 
              

                -  scope :active, -> { where(disabled: false) }
              

                +  scope :active,   -> { where(disabled: false) }
              

                +  scope :inactive, -> { where(disabled: true) }
              

                 
              

                   scope :of_type, lambda { |type|
              

                     type = case type
              

app/views/diagrams/show.html.erb

@@ -11,9 +11,9 @@

                       <div class="btn-group">
              

                         <%= link_to icon_tag('glyphicon-chevron-left') + ' Back'.html_safe, (@scenario ? scenario_path(@scenario) : agents_path), class: "btn btn-default" %>
              

                         <% if params[:include_disabled] %>
              

                -          <%= link_to @scenario ? scenario_diagram_path(@scenario) : diagram_path, class: 'btn btn-default' do %><%= icon_tag('glyphicon-eye-close') %> Hide disabled Agents<% end %>
              

                +          <%= link_to @scenario ? scenario_diagram_path(@scenario) : diagram_path, class: 'btn btn-default' do %><%= icon_tag('glyphicon-eye-close') %> Hide <%= pluralize(@disabled_agents.count, 'disabled Agent') %><% end %>
              

                         <% else %>
              

                -          <%= link_to @scenario ? scenario_diagram_path(@scenario, include_disabled: true) : diagram_path(include_disabled: true), class: 'btn btn-default' do %><%= icon_tag('glyphicon-eye-open') %> Show disabled Agents<% end %>
              

                +          <%= link_to @scenario ? scenario_diagram_path(@scenario, include_disabled: true) : diagram_path(include_disabled: true), class: 'btn btn-default' do %><%= icon_tag('glyphicon-eye-open') %> Show <%= pluralize(@disabled_agents.count, 'disabled Agent') %><% end %>
              

                         <% end %>
              

                       </div>