Add success message when creating/updating banners

app/controllers/admin/banners_controller.rb

@@ -16,7 +16,7 @@ class Admin::BannersController < Admin::BaseController
   def create
     @banner = Banner.new(banner_params)
     if @banner.save
-      redirect_to admin_banners_path
+      redirect_to admin_banners_path, notice: t("admin.banners.create.notice")
     else
       render :new
     end
@@ -24,7 +24,7 @@ class Admin::BannersController < Admin::BaseController
 
   def update
     if @banner.update(banner_params)
-      redirect_to admin_banners_path
+      redirect_to admin_banners_path, notice: t("admin.banners.update.notice")
     else
       render :edit
     end

config/locales/en/admin.yml

@@ -36,12 +36,16 @@ en:
           budgets: Participatory budgeting
           help_page: Help page
           sdg: SDG
+      create:
+        notice: "Banner created successfully"
       edit:
         editing: Edit banner
         form:
           submit_button: Save changes
       new:
         creating: Create banner
+      update:
+        notice: "Banner updated successfully"
     activity:
       show:
         action: Action

config/locales/es/admin.yml

@@ -36,12 +36,16 @@ es:
           budgets: Presupuestos participativos
           help_page: Página de ayuda
           sdg: ODS
+      create:
+        notice: "Banner creado correctamente"
       edit:
         editing: Editar el banner
         form:
           submit_button: Guardar cambios
       new:
         creating: Crear banner
+      update:
+        notice: "Banner actualizado correctamente"
     activity:
       show:
         action: Acción

spec/system/admin/banners_spec.rb

@@ -88,7 +88,7 @@ describe "Admin banners magement", :admin do
 
     click_button "Save changes"
 
-    expect(page).to have_content "Such banner"
+    expect(page).to have_content "Banner created successfully"
 
     visit proposals_path
 
@@ -158,7 +158,8 @@ describe "Admin banners magement", :admin do
 
     click_button "Save changes"
 
-    visit admin_banners_path
+    expect(page).to have_content "Banner updated successfully"
+
     expect(page).to have_content "Modified title"
     expect(page).to have_content "Edited text"