Unify and remove #show functionality from middeware controllers.

app/controllers/ems_common.rb

@@ -5,14 +5,14 @@ module EmsCommon
     include Mixins::GenericSessionMixin
     include Mixins::MoreShowActions
 
-    helper_method :textual_group_list
-    private :textual_group_list
-
     # This is a temporary hack ensuring that @ems will be set.
     # Once we use @record in place of @ems, this can be removed
     # together with init_show_ems
     alias_method :init_show_generic, :init_show
     alias_method :init_show, :init_show_ems
+
+    helper_method :textual_group_list
+    private :textual_group_list
   end
 
   def init_show_ems

app/controllers/middleware_domain_controller.rb

@@ -9,13 +9,8 @@ class MiddlewareDomainController < ApplicationController
   after_action :cleanup_action
   after_action :set_session_data
 
-  def show
-    return unless init_show
-    @display = params[:display] unless params[:display].nil?
-    case @display
-    when 'middleware_server_groups' then show_middleware_entities(MiddlewareServerGroup)
-    else show_middleware
-    end
+  def self.display_methods
+    %i(middleware_server_groups)
   end
 
   menu_section :cnt

app/controllers/middleware_server_controller.rb

@@ -154,15 +154,8 @@ def add_datasource
     end
   end
 
-  def show
-    return unless init_show
-    @display = params[:display] unless params[:display].nil?
-    case @display
-    when 'middleware_datasources' then show_middleware_entities(MiddlewareDatasource)
-    when 'middleware_deployments' then show_middleware_entities(MiddlewareDeployment)
-    when 'middleware_messagings' then show_middleware_entities(MiddlewareMessaging)
-    else show_middleware
-    end
+  def self.display_methods
+    %i(middleware_datasources middleware_deployments middleware_messagings)
   end
 
   def button

app/controllers/middleware_server_group_controller.rb

@@ -34,13 +34,8 @@ def self.operations
     OPERATIONS
   end
 
-  def show
-    return unless init_show
-    @display = params[:display] unless params[:display].nil?
-    case @display
-    when 'middleware_servers' then show_middleware_entities(MiddlewareServer)
-    else show_middleware
-    end
+  def self.display_methods
+    %i(middleware_servers)
   end
 
   def textual_group_list

app/controllers/mixins/middleware_common_mixin.rb

@@ -1,53 +1,4 @@
 module MiddlewareCommonMixin
   extend ActiveSupport::Concern
   include Mixins::MiddlewareOperationsMixin
-
-  def show
-    return unless init_show
-    @ems = @record
-    clear_topology_breadcrumb
-
-    show_middleware
-  end
-
-  private
-
-  def display_name(display = nil)
-    if display.blank?
-      ui_lookup(:tables => @record.class.base_class.name)
-    else
-      ui_lookup(:tables => display)
-    end
-  end
-
-  def listicon_image(item, _view)
-    item.decorate.try(:listicon_image)
-  end
-
-  def clear_topology_breadcrumb
-    # fix breadcrumbs - remove displaying 'topology' in breadcrumb when navigating to a middleware related entity summary page
-    if @breadcrumbs.present? && (@breadcrumbs.last[:name].eql? 'Topology')
-      @breadcrumbs.clear
-    end
-  end
-
-  def show_middleware
-    drop_breadcrumb({:name => display_name,
-                     :url  => show_list_link(@record, :page => @current_page, :refresh => 'y')
-                    }, true)
-    case @display
-    when 'main'                          then show_main
-    when 'summary_only'                  then show_download
-    when 'timeline'                      then show_timeline
-    when 'performance'                   then show_performance
-    end
-  end
-
-  def show_middleware_entities(klass)
-    @showtype = @display = params[:display] unless params[:display].nil?
-    breadcrumb_title = _("%{name} (All %{title})") % {:name  => @record.name,
-                                                      :title => display_name(@display)}
-    drop_breadcrumb(:name => breadcrumb_title, :url => show_link(@record, :display => @display))
-    @view, @pages = get_view(klass, :parent => @record)
-  end
 end