category list filter created at field of products

in_stuck filter created at filter has discount filter

backend/product/migrations/0011_productmodel_created_at.py

@@ -0,0 +1,20 @@
+# Generated by Django 5.1.2 on 2025-01-14 17:41
+
+import django.utils.timezone
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('product', '0010_remove_productmodel_link_of_metas'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='productmodel',
+            name='created_at',
+            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now, verbose_name='زمان ثبت محصول'),
+            preserve_default=False,
+        ),
+    ]

backend/product/migrations/0012_productmodel_category.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1.2 on 2025-01-14 18:31
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('product', '0011_productmodel_created_at'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='productmodel',
+            name='category',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='product.categorymodel'),
+        ),
+    ]

backend/product/models.py

@@ -112,7 +112,8 @@ class ProductModel(models.Model):
     meta_description = models.CharField(max_length=300, blank=True, null=True, help_text='این فیلد را حتما پر کنید')
     meta_keywords = models.CharField(max_length=300, blank=True, null=True, help_text='این فیلد را حتما پر کنید')
     meta_rating = models.FloatField(default=5, help_text='امتیاز محصول')
-
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name='زمان ثبت محصول')
+    category = models.ForeignKey(CategoryModel, blank=True, null=True, on_delete=models.SET_NULL)
     def format_discount_price(self):
         discount_price = int(self.price * (100 - self.discount) / 100)
         formatted_num = "{:,.0f}".format(discount_price)

backend/product/views.py

@@ -12,6 +12,17 @@ from drf_spectacular.utils import extend_schema, OpenApiParameter
 from drf_spectacular.types import OpenApiTypes
 from rest_framework.permissions import AllowAny
 
+
+# class CustomAPIView(APIView):
+#     def __init__(self, *args, **kwargs):
+#         super().__init__(*args, **kwargs)
+#         print('here')
+#         print(self.permission_classes)
+#         if not getattr(self, 'permission_classes')[0] != AllowAny or not self.permission_classes:
+#             print('asdf')
+#             self.authentication_classes = []
+
+
 class AllCategories(APIView):
     serializer_class = CategorySerializer
     authentication_classes = []
@@ -29,10 +40,17 @@ class ProductView(APIView):
         product_ser = self.serializer_class(instance=product, many=False)
         return Response(product_ser.data, status=status.HTTP_200_OK)
 
+from rest_framework.response import Response
+from rest_framework.views import APIView
+from rest_framework import status
+from drf_spectacular.utils import extend_schema, OpenApiParameter, OpenApiTypes
+from django.db.models import Q
+
 class AllProductsView(APIView):
     serializer_class = ProductSerializer
     pagination_class = StructurePagination
-    authentication_classes = []
+    authentication_classes = []  # Add authentication if required
+
     @extend_schema(
         parameters=[
             OpenApiParameter(
@@ -43,10 +61,12 @@ class AllProductsView(APIView):
             ),
             OpenApiParameter(
                 name="category",
-                description="Filter by category ID.",
+                type={'type': 'array', 'items': {'type': 'number'}},
+                location=OpenApiParameter.QUERY,
                 required=False,
-                type=OpenApiTypes.INT,
-            ),
+                style='form',
+                explode=False,
+                ),
             OpenApiParameter(
                 name="price_gte",
                 description="Filter products with price greater than or equal to this value.",
@@ -63,7 +83,7 @@ class AllProductsView(APIView):
                 name="sort",
                 description=(
                     "Sort results by one of the following fields:\n"
-                    "`name`, `-name`, `price`, `-price`, `discount`, `-discount`."
+                    "`name`, `-name`, `price`, `-price`, `discount`, `-discount`, `created_at`, `-created_at`."
                     "\nPrefix with `-` for descending order."
                 ),
                 required=False,
@@ -81,32 +101,56 @@ class AllProductsView(APIView):
                 required=False,
                 type=OpenApiTypes.INT,
             ),
+            OpenApiParameter(
+                name="in_stock",
+                description="Filter products that are in stock (positive stock).",
+                required=False,
+                type=OpenApiTypes.BOOL,
+            ),
+            OpenApiParameter(
+                name="has_discount",
+                description="Filter products that have a discount.",
+                required=False,
+                type=OpenApiTypes.BOOL,
+            )
         ],
         description=(
             "Retrieve products with optional filters and sorting. "
-            "Provide a category ID to filter products in that category and its subcategories."
+            "Provide a list of category IDs to filter products by those categories and their subcategories."
         ),
         responses={
             200: ProductSerializer(many=True),
             404: OpenApiTypes.OBJECT,
         },
     )
-    def get(self, request, pk=None):
+    def get(self, request):
         try:
-            if pk:
-                category = Category.objects.get(pk=pk)
-                products = ProductModel.objects.filter(category__in=category.get_descendants(include_self=True))
+            # Get list of category IDs from query parameters
+            category_ids = request.query_params.getlist('category', [])
+            if category_ids:
+                # Convert category IDs to integers and filter products by these categories
+                category_ids = [int(id) for id in category_ids]
+                
+                products = ProductModel.objects.filter(category__id__in=category_ids)
             else:
                 products = ProductModel.objects.all()
 
+            # Filter by stock status if `in_stock` is specified
+            in_stock = request.query_params.get('in_stock', "false") == 'true'
+            if in_stock:
+                products = products.filter(in_stock__gt=0)
+
+            # Filter by discount if `has_discount` is specified
+            has_discount = request.query_params.get('has_discount', "false") == 'true'
+            if has_discount:
+                products = products.filter(discount__gt=0)
+
+            # Search filter
             search_query = request.query_params.get('search', None)
             if search_query:
                 products = products.filter(Q(name__icontains=search_query) | Q(description__icontains=search_query))
 
-            category_filter = request.query_params.get('category', None)
-            if category_filter:
-                products = products.filter(category__id=category_filter)
-
+            # Price filters
             price_gte = request.query_params.get('price_gte', None)
             price_lte = request.query_params.get('price_lte', None)
             if price_gte:
@@ -114,18 +158,20 @@ class AllProductsView(APIView):
             if price_lte:
                 products = products.filter(price__lte=price_lte)
 
+            # Sorting
             sort_by = request.query_params.get('sort', None)
-            if sort_by in ['name', '-name', 'price', '-price', 'discount', '-discount']:
+            if sort_by in ['name', '-name', 'price', '-price', 'discount', '-discount', 'created_at', '-created_at']:
                 products = products.order_by(sort_by)
             else:
                 products = products.order_by('name')
 
+            # Pagination
             paginator = self.pagination_class()
             paginated_products = paginator.paginate_queryset(products, request)
             serializer = self.serializer_class(paginated_products, many=True)
             return paginator.get_paginated_response(serializer.data)
 
-        except Category.DoesNotExist:
+        except CategoryModel.DoesNotExist:
             return Response({"detail": "Category not found."}, status=status.HTTP_404_NOT_FOUND)