feat: вфыв

services/position.py

@@ -0,0 +1,32 @@
+from typing import Union
+
+from sqlalchemy import select, insert
+
+from models import Position
+from schemas.position import *
+from services.base import BaseService
+
+
+class PositionService(BaseService):
+    async def get_all(self) -> GetAllPositionsResponse:
+        stmt = select(Position).order_by(Position.key)
+        positions = (await self.session.scalars(stmt)).all()
+        positions_schemas = [PositionSchema.model_validate(position) for position in positions]
+        response = GetAllPositionsResponse(positions=positions_schemas)
+        return response
+
+    async def get_by_key(self, key: str) -> Union[Position, None]:
+        stmt = select(Position).where(Position.key == key)
+        return await self.session.scalar(stmt)
+
+
+    async def create(self, request: CreatePositionRequest) -> CreatePositionResponse:
+        try:
+            if await self.get_by_key(request.data.key):
+                return CreatePositionResponse(ok=False, message='Должность с таким ключом уже существует')
+            stmt = insert(Position).values(request.data.model_dump())
+            await self.session.execute(stmt)
+            await self.session.commit()
+            return CreatePositionResponse(ok=True, message='Должность успешно создана')
+        except Exception as e:
+            return CreatePositionResponse(ok=False, message=str(e))