feat: Add product kit views.

Remove custom delete() and hard_delete() methods that referenced
non-existent is_deleted/deleted_at fields. ProductKit now uses
the correct implementation from BaseProductEntity which uses
status='discontinued' for soft delete.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

myproject/products/models/kits.py

@@ -340,17 +340,6 @@ class ProductKit(BaseProductEntity):
         self.save(update_fields=['is_temporary', 'order'])
         return True
 
-    def delete(self, *args, **kwargs):
-        """Soft delete вместо hard delete - марк как удаленный"""
-        self.is_deleted = True
-        self.deleted_at = timezone.now()
-        self.save(update_fields=['is_deleted', 'deleted_at'])
-        return 1, {self.__class__._meta.label: 1}
-
-    def hard_delete(self):
-        """Полное удаление из БД (необратимо!)"""
-        super().delete()
-
     def create_snapshot(self):
         """
         Создает снимок текущего состояния комплекта.

myproject/products/templates/products/productkit_edit.html

@@ -506,6 +506,9 @@
             <a href="{% url 'products:productkit-detail' object.pk %}" class="btn btn-outline-secondary">
                 Отмена
             </a>
+            <a href="{% url 'products:productkit-create' %}?copy_from={{ object.pk }}" class="btn btn-warning text-white mx-2">
+                <i class="bi bi-files me-1"></i>Копировать комплект
+            </a>
             <button type="submit" class="btn btn-primary px-4">
                 <i class="bi bi-check-circle me-1"></i>Сохранить изменения
             </button>

myproject/products/views/productkit_views.py

@@ -9,9 +9,10 @@ from django.shortcuts import redirect
 from django.db import transaction, IntegrityError
 
 from user_roles.mixins import ManagerOwnerRequiredMixin
-from ..models import ProductKit, ProductCategory, ProductTag, ProductKitPhoto, Product, ProductVariantGroup, BouquetName
+from ..models import ProductKit, ProductCategory, ProductTag, ProductKitPhoto, Product, ProductVariantGroup, BouquetName, ProductSalesUnit
 from ..forms import ProductKitForm, KitItemFormSetCreate, KitItemFormSetUpdate
 from .utils import handle_photos
+import os
 
 
 class ProductKitListView(LoginRequiredMixin, ManagerOwnerRequiredMixin, ListView):
@@ -97,6 +98,37 @@ class ProductKitCreateView(LoginRequiredMixin, ManagerOwnerRequiredMixin, Create
     form_class = ProductKitForm
     template_name = 'products/productkit_create.html'
 
+    def get_initial(self):
+        initial = super().get_initial()
+        copy_id = self.request.GET.get('copy_from')
+        if copy_id:
+            try:
+                kit = ProductKit.objects.get(pk=copy_id)
+                
+                # Generate unique name
+                base_name = f"{kit.name} (Копия)"
+                new_name = base_name
+                counter = 1
+                while ProductKit.objects.filter(name=new_name).exists():
+                    counter += 1
+                    new_name = f"{base_name} {counter}"
+                
+                initial.update({
+                    'name': new_name,
+                    'description': kit.description,
+                    'short_description': kit.short_description,
+                    'categories': list(kit.categories.values_list('pk', flat=True)),
+                    'tags': list(kit.tags.values_list('pk', flat=True)),
+                    'sale_price': kit.sale_price,
+                    'price_adjustment_type': kit.price_adjustment_type,
+                    'price_adjustment_value': kit.price_adjustment_value,
+                    'external_category': kit.external_category,
+                    'status': 'active',  # Default to active for new kits
+                })
+            except ProductKit.DoesNotExist:
+                pass
+        return initial
+
     def post(self, request, *args, **kwargs):
         """
         Обрабатываем POST данные и очищаем ID товаров/комплектов от префиксов.
@@ -132,7 +164,6 @@ class ProductKitCreateView(LoginRequiredMixin, ManagerOwnerRequiredMixin, Create
             context['kititem_formset'] = KitItemFormSetCreate(self.request.POST, prefix='kititem')
 
             # При ошибке валидации: извлекаем выбранные товары для предзагрузки в Select2
-            from ..models import Product, ProductVariantGroup, ProductSalesUnit
             selected_products = {}
             selected_variants = {}
             selected_sales_units = {}
@@ -195,7 +226,97 @@ class ProductKitCreateView(LoginRequiredMixin, ManagerOwnerRequiredMixin, Create
             context['selected_variants'] = selected_variants
             context['selected_sales_units'] = selected_sales_units
         else:
-            context['kititem_formset'] = KitItemFormSetCreate(prefix='kititem')
+            # COPY KIT LOGIC
+            copy_id = self.request.GET.get('copy_from')
+            initial_items = []
+            selected_products = {}
+            selected_variants = {}
+            selected_sales_units = {}
+
+            if copy_id:
+                try:
+                    source_kit = ProductKit.objects.get(pk=copy_id)
+                    for item in source_kit.kit_items.all():
+                        item_data = {
+                            'quantity': item.quantity,
+                            # Delete flag is false by default
+                        }
+                        
+                        form_prefix = f"kititem-{len(initial_items)}"
+                        
+                        if item.product:
+                            item_data['product'] = item.product
+                            # Select2 prefill
+                            product = item.product
+                            text = product.name
+                            if product.sku:
+                                text += f" ({product.sku})"
+                            actual_price = product.sale_price if product.sale_price else product.price
+                            selected_products[f"{form_prefix}-product"] = {
+                                'id': product.id,
+                                'text': text,
+                                'price': str(product.price) if product.price else None,
+                                'actual_price': str(actual_price) if actual_price else '0'
+                            }
+                            
+                        if item.sales_unit:
+                            item_data['sales_unit'] = item.sales_unit
+                            # Select2 prefill
+                            sales_unit = item.sales_unit
+                            text = f"{sales_unit.name} ({sales_unit.product.name})"
+                            actual_price = sales_unit.sale_price if sales_unit.sale_price else sales_unit.price
+                            selected_sales_units[f"{form_prefix}-sales_unit"] = {
+                                'id': sales_unit.id,
+                                'text': text,
+                                'price': str(sales_unit.price) if sales_unit.price else None,
+                                'actual_price': str(actual_price) if actual_price else '0'
+                            }
+
+                        if item.variant_group:
+                            item_data['variant_group'] = item.variant_group
+                            # Select2 prefill
+                            variant_group = ProductVariantGroup.objects.prefetch_related(
+                                'items__product'
+                            ).get(id=item.variant_group.id)
+                            variant_price = variant_group.price or 0
+                            count = variant_group.items.count()
+                            selected_variants[f"{form_prefix}-variant_group"] = {
+                                'id': variant_group.id,
+                                'text': f"{variant_group.name} ({count} вариантов)",
+                                'price': str(variant_price),
+                                'actual_price': str(variant_price),
+                                'type': 'variant',
+                                'count': count
+                            }
+
+                        initial_items.append(item_data)
+                except ProductKit.DoesNotExist:
+                    pass
+
+            if initial_items:
+                context['kititem_formset'] = KitItemFormSetCreate(
+                    prefix='kititem',
+                    initial=initial_items
+                )
+                context['kititem_formset'].extra = len(initial_items)
+            else:
+                context['kititem_formset'] = KitItemFormSetCreate(prefix='kititem')
+
+            # Pass Select2 data to context
+            context['selected_products'] = selected_products
+            context['selected_variants'] = selected_variants
+            context['selected_sales_units'] = selected_sales_units
+            
+            # Pass source photos if copying
+            if copy_id:
+                try:
+                    source_kit = ProductKit.objects.prefetch_related('photos').get(pk=copy_id)
+                    photos = source_kit.photos.all().order_by('order')
+                    print(f"DEBUG: Found {photos.count()} source photos for kit {copy_id}")
+                    context['source_photos'] = photos
+                except ProductKit.DoesNotExist:
+                    print(f"DEBUG: Source kit {copy_id} not found")
+                    pass
 
         # Количество названий букетов в базе
         context['bouquet_names_count'] = BouquetName.objects.count()
@@ -235,6 +356,48 @@ class ProductKitCreateView(LoginRequiredMixin, ManagerOwnerRequiredMixin, Create
                 # Обработка фотографий
                 handle_photos(self.request, self.object, ProductKitPhoto, 'kit')
 
+                # Handle copied photos
+                copied_photo_ids = self.request.POST.getlist('copied_photos')
+                print(f"DEBUG: copied_photo_ids in POST: {copied_photo_ids}")
+                
+                if copied_photo_ids:
+                    from django.core.files.base import ContentFile
+                    original_photos = ProductKitPhoto.objects.filter(id__in=copied_photo_ids)
+                    print(f"DEBUG: Found {original_photos.count()} original photos to copy")
+                    
+                    # Get max order from existing photos (uploaded via handle_photos)
+                    from django.db.models import Max
+                    max_order = self.object.photos.aggregate(Max('order'))['order__max']
+                    next_order = 0 if max_order is None else max_order + 1
+                    print(f"DEBUG: Starting order for copies: {next_order}")
+
+                    for photo in original_photos:
+                        try:
+                            # Open the original image file
+                            if photo.image:
+                                print(f"DEBUG: Processing photo {photo.id}: {photo.image.name}")
+                                with photo.image.open('rb') as f:
+                                    image_content = f.read()
+                                    
+                                # Create a new ContentFile
+                                new_image_name = f"copy_{self.object.id}_{os.path.basename(photo.image.name)}"
+                                print(f"DEBUG: New image name: {new_image_name}")
+                                
+                                # Create new photo instance
+                                new_photo = ProductKitPhoto(kit=self.object, order=next_order)
+                                # Save the image file (this also saves the model instance)
+                                new_photo.image.save(new_image_name, ContentFile(image_content))
+                                print(f"DEBUG: Successfully saved copy for photo {photo.id}")
+                                
+                                next_order += 1
+                            else:
+                                print(f"DEBUG: Photo {photo.id} has no image file")
+                        except Exception as e:
+                            print(f"Error copying photo {photo.id}: {e}")
+                            import traceback
+                            traceback.print_exc()
+                            continue 
+
                 messages.success(
                     self.request,
                     f'Комплект "{self.object.name}" успешно создан!'