feat: a lot of a lot

models/product.py

@@ -1,8 +1,14 @@
+from typing import TYPE_CHECKING
+
 from sqlalchemy import Column, Integer, String, ForeignKey, Sequence
-from sqlalchemy.orm import relationship
+from sqlalchemy.orm import relationship, Mapped
+from sqlalchemy.testing.schema import mapped_column
 
 from models import BaseModel
 
+if TYPE_CHECKING:
+    from models import Marketplace
+
 
 class Product(BaseModel):
     __tablename__ = 'products'
@@ -30,11 +36,12 @@ class Product(BaseModel):
                           cascade="all, delete-orphan")
 
 
+
 class ProductImage(BaseModel):
     __tablename__ = 'product_images'
     id = Column(Integer, autoincrement=True, primary_key=True, index=True)
     product_id = Column(Integer, ForeignKey('products.id'), nullable=False)
-    product = relationship('Product', back_populates='images')
+    product: Mapped["Product"] = relationship(back_populates='images')
 
     image_url = Column(String, nullable=False)
 
@@ -42,6 +49,6 @@ class ProductImage(BaseModel):
 class ProductBarcode(BaseModel):
     __tablename__ = 'product_barcodes'
     product_id = Column(Integer, ForeignKey('products.id'), nullable=False, comment='ID товара', primary_key=True)
-    product = relationship('Product', back_populates='barcodes')
+    product: Mapped["Product"] = relationship(back_populates='barcodes')
 
     barcode = Column(String, nullable=False, index=True, comment='ШК товара', primary_key=True)