tramway.rb in tramway-page-1.5.2

- old
+ new

@@ -1,3 +1,20 @@
 # frozen_string_literal: true
 
 ::Tramway::Admin.set_available_models(::Tramway::Page::Page, project: :page)
+::Tramway::Admin.set_additional_buttons(
+  {
+    ::Tramway::Page::Page => {
+      show: [
+        lambda { |record|
+          {
+            url: Tramway::Page::Engine.routes.url_helpers.preview_path(id: record.id),
+            method: :get,
+            text: 'Preview',
+            color: :primary
+          }
+        }
+      ]
+    }
+  },
+  project: :subberz
+)