feat: deal tags

models/deal_tag.py

@@ -0,0 +1,51 @@
+from typing import TYPE_CHECKING
+
+from sqlalchemy import ForeignKey, Column, Table, Index
+from sqlalchemy.orm import mapped_column, Mapped, relationship
+
+from models import BaseModel
+from models.mixins import IdMixin, SoftDeleteMixin
+
+if TYPE_CHECKING:
+    from models import Project, Deal
+
+deals_deal_tags = Table(
+    "deals_deal_tags",
+    BaseModel.metadata,
+    Column("deal_id", ForeignKey("deals.id"), primary_key=True),
+    Column("deal_tag_id", ForeignKey("deal_tags.id"), primary_key=True),
+)
+
+
+class DealTagColor(BaseModel, IdMixin):
+    __tablename__ = "deal_tag_colors"
+
+    label: Mapped[str] = mapped_column(unique=True)
+    color: Mapped[str] = mapped_column(unique=True)
+    background_color: Mapped[str] = mapped_column(unique=True)
+    is_deleted: Mapped[bool] = mapped_column(default=False)
+
+
+class DealTag(BaseModel, IdMixin, SoftDeleteMixin):
+    __tablename__ = "deal_tags"
+
+    name: Mapped[str] = mapped_column()
+
+    project_id: Mapped[int] = mapped_column(ForeignKey("projects.id"))
+    project: Mapped["Project"] = relationship(
+        back_populates="tags",
+        lazy="noload",
+    )
+
+    deals: Mapped[list["Deal"]] = relationship(
+        secondary="deals_deal_tags",
+        lazy="noload",
+        back_populates="tags",
+    )
+
+    tag_color_id: Mapped[int] = mapped_column(ForeignKey("deal_tag_colors.id"))
+    tag_color: Mapped[DealTagColor] = relationship(lazy="immediate")
+
+    __table_args__ = (
+        Index("idx_deal_name_project_id", "name", "project_id", "is_deleted"),
+    )