Files

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Python

"""FastAPI CRUD — yksi endpoint-setti per entiteetti."""
from fastapi import FastAPI, Depends, HTTPException
from sqlalchemy.orm import Session
from models import SessionLocal, Todo
from schemas import TodoCreate, TodoResponse
app = FastAPI()
def get_db():
"""Tietokantasessio per pyyntö."""
db = SessionLocal()
try:
yield db
finally:
db.close()
@app.post("/todos/", response_model=TodoResponse, status_code=201)
def create_todo(item: TodoCreate, db: Session = Depends(get_db)):
db_item = Todo(**item.model_dump())
db.add(db_item)
db.commit()
db.refresh(db_item)
return db_item
@app.get("/todos/", response_model=list[TodoResponse])
def list_todos(db: Session = Depends(get_db)):
return db.query(Todo).all()
@app.get("/todos/{item_id}", response_model=TodoResponse)
def get_todo(item_id: int, db: Session = Depends(get_db)):
item = db.query(Todo).filter(Todo.id == item_id).first()
if not item:
raise HTTPException(status_code=404, detail="Todo not found")
return item
@app.put("/todos/{item_id}", response_model=TodoResponse)
def update_todo(item_id: int, item: TodoCreate, db: Session = Depends(get_db)):
db_item = db.query(Todo).filter(Todo.id == item_id).first()
if not db_item:
raise HTTPException(status_code=404, detail="Todo not found")
for key, value in item.model_dump().items():
setattr(db_item, key, value)
db.commit()
db.refresh(db_item)
return db_item
@app.delete("/todos/{item_id}", status_code=204)
def delete_todo(item_id: int, db: Session = Depends(get_db)):
db_item = db.query(Todo).filter(Todo.id == item_id).first()
if not db_item:
raise HTTPException(status_code=404, detail="Todo not found")
db.delete(db_item)
db.commit()