Add destroy link in the show template

app/assets/stylesheets/administrate/components/_buttons.scss

@@ -40,6 +40,16 @@ input[type="submit"],
       background-color: $action-color;
     }
   }
+
+  &--danger {
+    @extend .button;
+    background-color: $red;
+
+    &:hover {
+      background-color: mix($black, $red, 20%);
+      color: $white;
+    }
+  }
 }
 
 .button--alt {

app/views/administrate/application/show.html.erb

@@ -29,6 +29,14 @@ as well as a link to its edit page.
       [:edit, namespace, page.resource],
       class: "button",
     ) if valid_action?(:edit) && show_action?(:edit, page.resource) %>
+
+    <%= link_to(
+      t("administrate.actions.destroy"),
+      [namespace, page.resource],
+      class: "button--danger",
+      method: :delete,
+      data: { confirm: t("administrate.actions.confirm") }
+    ) if valid_action?(:destroy) && show_action?(:destroy, page.resource) %>
   </div>
 </header>
 

spec/features/show_page_spec.rb

@@ -198,6 +198,14 @@
     expect(page).to have_header("Edit #{displayed(customer)}")
   end
 
+  it "displays destroy link" do
+    customer = create(:customer)
+
+    visit admin_customer_path(customer)
+
+    expect { click_on "Destroy" }.to change(Customer, :count).from(1).to(0)
+  end
+
   it "displays translated labels" do
     custom_label = "Newsletter Subscriber"
     customer = create(:customer)