Dashboard audit improvements

lib/rails_admin/config/actions/dashboard.rb

@@ -12,9 +12,13 @@ class Dashboard < RailsAdmin::Config::Actions::Base
           nil
         end
 
+        register_instance_option :auditing_versions_limit do
+          50
+        end
+
         register_instance_option :controller do
           proc do
-            @history = @auditing_adapter && @auditing_adapter.latest || []
+            @history = @auditing_adapter && @auditing_adapter.latest(@action.auditing_versions_limit) || []
             if @action.statistics?
               @abstract_models = RailsAdmin::Config.visible_models(controller: self).collect(&:abstract_model)
 

lib/rails_admin/extensions/history/auditing_adapter.rb

@@ -8,8 +8,8 @@ def initialize(controller, user_class = User)
           require 'rails_admin/extensions/history/history'
         end
 
-        def latest
-          ::RailsAdmin::History.latest
+        def latest(count = 100)
+          ::RailsAdmin::History.latest(count)
         end
 
         def delete_object(object, model, user)

lib/rails_admin/extensions/history/history.rb

@@ -11,8 +11,8 @@ class History < ActiveRecord::Base
     default_scope { order('id DESC') }
 
     class << self
-      def latest
-        limit(100)
+      def latest(count = 100)
+        limit(count)
       end
 
       def create_history_item(message, object, abstract_model, user)

lib/rails_admin/extensions/paper_trail/auditing_adapter.rb

@@ -63,8 +63,10 @@ def initialize(controller, user_class = 'User', version_class = '::Version')
           end
         end
 
-        def latest
-          @version_class.order('id DESC').limit(100).collect { |version| VersionProxy.new(version, @user_class) }
+        def latest(count = 100)
+          @version_class.
+            order(id: :desc).includes(:item).limit(count).
+            collect { |version| VersionProxy.new(version, @user_class) }
         end
 
         def delete_object(_object, _model, _user)