adding part colour

app/crud/part_colour.py

@@ -0,0 +1,45 @@
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.part_colour import PartColour
+
+
+async def get(db: AsyncSession, part_colour_id: int) -> PartColour | None:
+    return await db.get(PartColour, part_colour_id)
+
+
+async def get_by_name(db: AsyncSession, name: str) -> PartColour | None:
+    result = await db.execute(
+        select(PartColour).where(PartColour.name == name)
+    )
+    return result.scalar_one_or_none()
+
+
+async def list_all(
+    db: AsyncSession, skip: int = 0, limit: int = 100
+) -> list[PartColour]:
+    result = await db.execute(
+        select(PartColour).order_by(PartColour.name).offset(skip).limit(limit)
+    )
+    return list(result.scalars().all())
+
+
+async def create(db: AsyncSession, *, name: str) -> PartColour:
+    pc = PartColour(name=name)
+    db.add(pc)
+    await db.commit()
+    await db.refresh(pc)
+    return pc
+
+
+async def update(db: AsyncSession, pc: PartColour, data: dict) -> PartColour:
+    for field, value in data.items():
+        setattr(pc, field, value)
+    await db.commit()
+    await db.refresh(pc)
+    return pc
+
+
+async def delete(db: AsyncSession, pc: PartColour) -> None:
+    await db.delete(pc)
+    await db.commit()