feat: вфыв

services/position.py

@@ -1,8 +1,8 @@
 from typing import Union
 
-from sqlalchemy import select, insert
+from sqlalchemy import select, insert, delete
 
-from models import Position
+from models import Position, user_position
 from schemas.position import *
 from services.base import BaseService
 
@@ -19,7 +19,6 @@ class PositionService(BaseService):
         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):
@@ -30,3 +29,30 @@ class PositionService(BaseService):
             return CreatePositionResponse(ok=True, message='Должность успешно создана')
         except Exception as e:
             return CreatePositionResponse(ok=False, message=str(e))
+
+    async def delete(self, request: DeletePositionRequest) -> DeletePositionResponse:
+        try:
+            # Prevent deleting if existing on users
+            stmt = (
+                select(
+                    user_position
+                )
+                .where(
+                    user_position.c.position_key == request.position_key
+                )
+            )
+            if await self.session.scalar(stmt):
+                return DeletePositionResponse(ok=False, message='Должность привязана к существующим сотрудникам')
+            delete_stmt = (
+                delete(
+                    Position
+                )
+                .where(
+                    Position.key == request.position_key
+                )
+            )
+            await self.session.execute(delete_stmt)
+            await self.session.commit()
+            return DeletePositionResponse(ok=True, message="Должность успешно удалена!")
+        except Exception as e:
+            return DeletePositionResponse(ok=False, message=str(e))