Add event duplication feature with ticket types cloning

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

app/controllers/promoter/events_controller.rb

@@ -5,7 +5,7 @@
 class Promoter::EventsController < ApplicationController
   before_action :authenticate_user!
   before_action :ensure_can_manage_events!
-  before_action :set_event, only: [ :show, :edit, :update, :destroy, :publish, :unpublish, :cancel, :mark_sold_out ]
+  before_action :set_event, only: [ :show, :edit, :update, :destroy, :publish, :unpublish, :cancel, :mark_sold_out, :duplicate ]
 
   # Display all events for the current promoter
   def index
@@ -93,6 +93,17 @@ class Promoter::EventsController < ApplicationController
     end
   end
 
+  # Duplicate an event and all its ticket types
+  def duplicate
+    @new_event = @event.duplicate
+
+    if @new_event
+      redirect_to edit_promoter_event_path(@new_event), notice: "Événement dupliqué avec succès! Vous pouvez maintenant modifier les détails de l'événement copié."
+    else
+      redirect_to promoter_event_path(@event), alert: "Erreur lors de la duplication de l'événement."
+    end
+  end
+
   private
 
   def ensure_can_manage_events!