Enforce parameter binding requirement for ConfigurableKitProduct variants

Changes:
1. Removed unused attributesMetadata container from configurablekit_form.html
   - Dead code from old formset-based attribute system
   - 10 lines of unused HTML and templating removed

2. Enhanced formset validation in BaseConfigurableKitOptionFormSet.clean():
   - If product HAS parameters: variants MUST select values for ALL parameters
   - If product HAS NO parameters: variants MUST NOT be created
   - Error message guides user to add parameters first

Business logic:
- ConfigurableKitProduct variants (options) are ALWAYS bound to attribute values
- You cannot create orphan variants without parameter selections
- Each variant must have a value for every product parameter

User experience:
- Clear error message if trying to add variant without parameters
- Enforces proper product structure: parameters first, then variants

🤖 Generated with Claude Code

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

check_kit_bindings.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+"""
+Check existing kit bindings in database
+"""
+import os
+import sys
+import django
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
+django.setup()
+
+from products.models.kits import ConfigurableKitProduct, ConfigurableKitProductAttribute
+from django_tenants.utils import tenant_context
+from tenants.models import Client
+
+try:
+    client = Client.objects.get(schema_name='grach')
+except Client.DoesNotExist:
+    print("Tenant 'grach' not found")
+    sys.exit(1)
+
+with tenant_context(client):
+    print("=" * 80)
+    print("Current ConfigurableKitProduct items in database:")
+    print("=" * 80)
+    
+    for product in ConfigurableKitProduct.objects.all().order_by('-id')[:5]:
+        attrs_count = product.parent_attributes.count()
+        kit_bound = product.parent_attributes.filter(kit__isnull=False).count()
+        
+        print(f"\nID {product.id}: {product.name} (SKU: {product.sku})")
+        print(f"  Total attributes: {attrs_count}")
+        print(f"  Kit-bound attributes: {kit_bound}")
+        
+        if attrs_count > 0:
+            print("  Attribute breakdown:")
+            params = product.parent_attributes.values('name').distinct()
+            for param in params:
+                param_name = param['name']
+                values = product.parent_attributes.filter(name=param_name).values_list('option', 'kit__name')
+                print(f"    - {param_name}:")
+                for value, kit_name in values:
+                    kit_info = f"Kit: {kit_name}" if kit_name else "(no kit)"
+                    print(f"        * {value} -> {kit_info}")

myproject/check_kit_bindings.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+import os, sys, django
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings')
+django.setup()
+
+from products.models.kits import ConfigurableKitProduct
+from django_tenants.utils import tenant_context
+from tenants.models import Client
+
+client = Client.objects.get(schema_name='grach')
+with tenant_context(client):
+    print("=" * 80)
+    print("ConfigurableKitProduct items with kit bindings:")
+    print("=" * 80)
+    
+    for product in ConfigurableKitProduct.objects.all().order_by('-id')[:5]:
+        attrs = product.parent_attributes.all()
+        if attrs.exists():
+            kit_bound = attrs.filter(kit__isnull=False).count()
+            print(f"\nID {product.id}: {product.name}")
+            print(f"  Total attrs: {attrs.count()} | Kit-bound: {kit_bound}")
+            for param_name in attrs.values_list('name', flat=True).distinct():
+                vals = attrs.filter(name=param_name)
+                print(f"  {param_name}:")
+                for attr in vals:
+                    kit = attr.kit.name if attr.kit else "(no kit)"
+                    print(f"    - {attr.option} -> {kit}")

myproject/products/forms.py

@@ -722,7 +722,7 @@ class BaseConfigurableKitOptionFormSet(forms.BaseInlineFormSet):
             parent = self.instance
             if parent and parent.pk:
                 # Получаем все уникальные названия атрибутов родителя
-                attribute_names = (
+                attribute_names = list(
                     parent.parent_attributes
                     .all()
                     .order_by('position', 'name')
@@ -730,6 +730,8 @@ class BaseConfigurableKitOptionFormSet(forms.BaseInlineFormSet):
                     .values_list('name', flat=True)
                 )
 
+                # Если у товара есть параметры, вариант ОБЯЗАН иметь значения для них
+                if attribute_names:
                     # Проверяем что каждый атрибут выбран
                     missing_attributes = []
                     for attr_name in attribute_names:
@@ -742,6 +744,11 @@ class BaseConfigurableKitOptionFormSet(forms.BaseInlineFormSet):
                         raise forms.ValidationError(
                             f'Вариант {idx + 1}: необходимо заполнить атрибут(ы) {attrs_str}.'
                         )
+                else:
+                    # Если у товара нет параметров, вариант без привязки к параметрам бессмысленен
+                    raise forms.ValidationError(
+                        f'Вариант {idx + 1}: сначала добавьте параметры товара в разделе "Параметры товара".'
+                    )
 
         # Проверяем, что не более одного "is_default"
         if default_count > 1:

myproject/products/templates/products/configurablekit_form.html

@@ -258,17 +258,6 @@ input[name*="DELETE"] {
                             {% endfor %}
                         </div>
 
-                        <!-- Скрытый контейнер с информацией об атрибутах для JavaScript -->
-                        <div id="attributesMetadata" style="display: none;">
-                            {% for attr in attribute_formset %}
-                                {% if attr.cleaned_data or attr.instance.pk %}
-                                    <div data-attr-name="{{ attr.cleaned_data.name|default:attr.instance.name }}"
-                                         data-attr-id="{{ attr.instance.id }}">
-                                    </div>
-                                {% endif %}
-                            {% endfor %}
-                        </div>
-
                         <button type="button" class="btn btn-sm btn-outline-primary" id="addOptionBtn">
                             <i class="bi bi-plus-circle me-1"></i>Добавить вариант
                         </button>