feat: modules, products, services, services kits

modules/fulfillment_base/models/deal_product.py

@@ -0,0 +1,60 @@
+from typing import TYPE_CHECKING
+
+from sqlalchemy import ForeignKey, ForeignKeyConstraint
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from models.base import BaseModel
+from models.mixins import PriceMixin
+
+if TYPE_CHECKING:
+    from models import Deal, Service, Product
+
+
+class DealProduct(BaseModel):
+    __tablename__ = "fulfillment_base_deal_products"
+
+    deal_id: Mapped[int] = mapped_column(ForeignKey("deals.id"), primary_key=True)
+    product_id: Mapped[int] = mapped_column(
+        ForeignKey("fulfillment_base_products.id"), primary_key=True
+    )
+
+    quantity: Mapped[int] = mapped_column(default=1)
+    comment: Mapped[str] = mapped_column(comment="Комментарий к товару")
+
+    deal: Mapped["Deal"] = relationship(backref="deal_products")
+    product: Mapped["Product"] = relationship()
+
+    product_services: Mapped[list["DealProductService"]] = relationship(
+        back_populates="deal_product",
+        primaryjoin="and_(DealProduct.deal_id==DealProductService.deal_id, DealProduct.product_id==DealProductService.product_id)",
+    )
+
+
+class DealProductService(BaseModel, PriceMixin):
+    __tablename__ = "fulfillment_base_deal_products_services"
+
+    deal_id: Mapped[int] = mapped_column(primary_key=True)
+    product_id: Mapped[int] = mapped_column(primary_key=True)
+    service_id: Mapped[int] = mapped_column(
+        ForeignKey("fulfillment_base_services.id"), primary_key=True
+    )
+
+    is_fixed_price: Mapped[bool] = mapped_column(
+        default=False, server_default="0", comment="Фиксированная цена"
+    )
+
+    deal_product: Mapped["DealProduct"] = relationship(
+        back_populates="product_services",
+        primaryjoin="and_(DealProductService.deal_id==DealProduct.deal_id, DealProductService.product_id==DealProduct.product_id)",
+    )
+    service: Mapped["Service"] = relationship()
+
+    __table_args__ = (
+        ForeignKeyConstraint(
+            ["deal_id", "product_id"],
+            [
+                "fulfillment_base_deal_products.deal_id",
+                "fulfillment_base_deal_products.product_id",
+            ],
+        ),
+    )