engine/core/models.py

@@ -469,16 +469,22 @@ class Category(NiceModel, MPTTModel):
         ).distinct()
 
     @cached_property
-    def min_price(self) -> Decimal:
+    def min_price(self) -> float:
-        return self.products.filter(is_active=True, stocks__is_active=True).aggregate(
+        return (
+            self.products.filter(is_active=True, stocks__is_active=True).aggregate(
                 Min("stocks__price")
-        )["stocks__price__min"] or Decimal("0.00")
+            )["stocks__price__min"]
+            or 0.0
+        )
 
     @cached_property
-    def max_price(self) -> Decimal:
+    def max_price(self) -> float:
-        return self.products.filter(is_active=True, stocks__is_active=True).aggregate(
+        return (
+            self.products.filter(is_active=True, stocks__is_active=True).aggregate(
                 Max("stocks__price")
-        )["stocks__price__max"] or Decimal("0.00")
+            )["stocks__price__max"]
+            or 0.0
+        )
 
     @cached_property
     def seo_description(self) -> str:
@@ -770,7 +776,7 @@ class Product(NiceModel):
         ).order_by("-discount_percent")
 
     @cached_property
-    def discount_price(self) -> Decimal | None:
+    def discount_price(self) -> float | None:
         promo = self.promos.first()
         return (self.price / 100) * promo.discount_percent if promo else None
 
@@ -789,11 +795,11 @@ class Product(NiceModel):
         return Feedback.objects.filter(order_product__product_id=self.pk).count()
 
     @property
-    def price(self: Self) -> Decimal:
+    def price(self: Self) -> float:
         stock = (
             self.stocks.filter(is_active=True).only("price").order_by("-price").first()
         )
-        return Decimal(round(stock.price, 2)) if stock else Decimal("0.00")
+        return round(stock.price, 2) if stock else 0.0
 
     @cached_property
     def quantity(self) -> int:

engine/core/serializers/detail.py

@@ -3,7 +3,7 @@ from contextlib import suppress
 from typing import Any
 
 from drf_spectacular.utils import extend_schema_field
-from rest_framework.fields import DecimalField, JSONField, SerializerMethodField
+from rest_framework.fields import JSONField, SerializerMethodField
 from rest_framework.serializers import ListSerializer, ModelSerializer
 from rest_framework_recursive.fields import RecursiveField
 
@@ -64,12 +64,8 @@ class CategoryDetailSerializer(ModelSerializer):
     description = SerializerMethodField()
     filterable_attributes = SerializerMethodField()
     brands = BrandSimpleSerializer(many=True, read_only=True)
-    min_price = DecimalField(
+    min_price = SerializerMethodField()
-        max_digits=12, decimal_places=2, read_only=True, coerce_to_string=False
+    max_price = SerializerMethodField()
-    )
-    max_price = DecimalField(
-        max_digits=12, decimal_places=2, read_only=True, coerce_to_string=False
-    )
 
     class Meta:
         model = Category
@@ -111,6 +107,12 @@ class CategoryDetailSerializer(ModelSerializer):
             return list(serializer.data)
         return []
 
+    def get_min_price(self, obj: Category) -> float:
+        return obj.min_price
+
+    def get_max_price(self, obj: Category) -> float:
+        return obj.max_price
+
 
 class BrandDetailSerializer(ModelSerializer):
     categories = CategorySimpleSerializer(many=True)
@@ -279,18 +281,10 @@ class ProductDetailSerializer(ModelSerializer):
 
     description = SerializerMethodField()
     rating = SerializerMethodField()
-    price = DecimalField(
+    price = SerializerMethodField()
-        max_digits=12, decimal_places=2, read_only=True, coerce_to_string=False
-    )
     quantity = SerializerMethodField()
     feedbacks_count = SerializerMethodField()
-    discount_price = DecimalField(
+    discount_price = SerializerMethodField()
-        max_digits=12,
-        decimal_places=2,
-        read_only=True,
-        allow_null=True,
-        coerce_to_string=False,
-    )
     personal_orders_only = SerializerMethodField()
 
     class Meta:
@@ -325,6 +319,9 @@ class ProductDetailSerializer(ModelSerializer):
     def get_rating(self, obj: Product) -> float:
         return obj.rating
 
+    def get_price(self, obj: Product) -> float:
+        return obj.price
+
     def get_feedbacks_count(self, obj: Product) -> int:
         return obj.feedbacks_count
 
@@ -334,6 +331,9 @@ class ProductDetailSerializer(ModelSerializer):
     def get_quantity(self, obj: Product) -> int:
         return obj.quantity
 
+    def get_discount_price(self, obj: Product) -> float | None:
+        return obj.discount_price
+
 
 class PromotionDetailSerializer(ModelSerializer):
     products = ProductDetailSerializer(
@@ -416,9 +416,7 @@ class OrderDetailSerializer(ModelSerializer):
     order_products = OrderProductDetailSerializer(
         many=True,
     )
-    total_price = DecimalField(
+    total_price = SerializerMethodField(read_only=True)
-        max_digits=12, decimal_places=2, read_only=True, coerce_to_string=False
-    )
 
     class Meta:
         model = Order
@@ -435,3 +433,6 @@ class OrderDetailSerializer(ModelSerializer):
             "created",
             "modified",
         ]
+
+    def get_total_price(self, obj: Order) -> float:
+        return obj.total_price  # ty: ignore[invalid-return-type]

engine/core/serializers/simple.py

@@ -1,6 +1,6 @@
 from typing import Any
 
-from rest_framework.fields import DecimalField, JSONField, SerializerMethodField
+from rest_framework.fields import JSONField, SerializerMethodField
 from rest_framework.relations import PrimaryKeyRelatedField
 from rest_framework.serializers import ModelSerializer
 
@@ -140,19 +140,11 @@ class ProductSimpleSerializer(ModelSerializer):
 
     description = SerializerMethodField()
     rating = SerializerMethodField()
-    price = DecimalField(
+    price = SerializerMethodField()
-        max_digits=12, decimal_places=2, read_only=True, coerce_to_string=False
-    )
     quantity = SerializerMethodField()
     feedbacks_count = SerializerMethodField()
     personal_orders_only = SerializerMethodField()
-    discount_price = DecimalField(
+    discount_price = SerializerMethodField()
-        max_digits=12,
-        decimal_places=2,
-        read_only=True,
-        allow_null=True,
-        coerce_to_string=False,
-    )
 
     class Meta:
         model = Product
@@ -184,6 +176,9 @@ class ProductSimpleSerializer(ModelSerializer):
     def get_rating(self, obj: Product) -> float:
         return obj.rating
 
+    def get_price(self, obj: Product) -> float:
+        return obj.price
+
     def get_feedbacks_count(self, obj: Product) -> int:
         return obj.feedbacks_count
 
@@ -193,6 +188,9 @@ class ProductSimpleSerializer(ModelSerializer):
     def get_personal_orders_only(self, obj: Product) -> bool:
         return obj.personal_orders_only
 
+    def get_discount_price(self, obj: Product) -> float | None:
+        return obj.discount_price
+
 
 class VendorSimpleSerializer(ModelSerializer):
     class Meta:
@@ -288,9 +286,7 @@ class OrderSimpleSerializer(ModelSerializer):
     billing_address = AddressSerializer(read_only=True, required=False)
     shipping_address = AddressSerializer(read_only=True, required=False)
     attributes = JSONField(required=False)
-    total_price = DecimalField(
+    total_price = SerializerMethodField(read_only=True)
-        max_digits=12, decimal_places=2, read_only=True, coerce_to_string=False
-    )
 
     class Meta:
         model = Order
@@ -309,3 +305,6 @@ class OrderSimpleSerializer(ModelSerializer):
             "created",
             "modified",
         ]
+
+    def get_total_price(self, obj: Order) -> float:
+        return obj.total_price  # ty: ignore[invalid-return-type]

engine/core/utils/seo_builders.py

@@ -56,7 +56,7 @@ def product_schema(product, images, rating=None):
         offers.append(
             {
                 "@type": "Offer",
-                "price": float(round(stock.price, 2)),
+                "price": round(stock.price, 2),
                 "priceCurrency": settings.CURRENCY_CODE,
                 "availability": "https://schema.org/InStock"
                 if stock.quantity > 0

engine/core/views.py

@@ -135,24 +135,6 @@ class CustomGraphQLView(FileUploadGraphQLView):
     def get_context(self, request):
         return request
 
-    @staticmethod
-    def json_encode(request, d, pretty=False):
-        from decimal import Decimal
-
-        import orjson
-
-        def _default(obj):
-            if isinstance(obj, Decimal):
-                return float(obj)
-            raise TypeError(
-                f"Object of type {type(obj).__name__} is not JSON serializable"
-            )
-
-        opts = orjson.OPT_NON_STR_KEYS
-        if pretty or request.GET.get("pretty"):
-            opts |= orjson.OPT_INDENT_2 | orjson.OPT_SORT_KEYS
-        return orjson.dumps(d, default=_default, option=opts).decode("utf-8")
-
 
 @extend_schema_view(**CUSTOM_OPENAPI_SCHEMA)
 class CustomSpectacularAPIView(SpectacularAPIView):