91 lines
3.1 KiB
Python
91 lines
3.1 KiB
Python
from typing import List, Optional
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from sqlalchemy.orm import Session
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from sqlalchemy.exc import IntegrityError
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from fastapi import HTTPException
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from app.database.models import User
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from app.schemas.user import UserCreate, UserUpdate
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class UserService:
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@staticmethod
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def get_all_users(db: Session) -> List[User]:
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"""获取所有用户"""
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return db.query(User).all()
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@staticmethod
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def get_user_by_id(db: Session, user_id: int) -> Optional[User]:
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"""根据ID获取用户"""
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return db.query(User).filter(User.id == user_id).first()
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@staticmethod
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def create_user(db: Session, user_data: UserCreate) -> User:
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"""创建新用户"""
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try:
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db_user = User(
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username=user_data.username,
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email=user_data.email,
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full_name=user_data.full_name
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)
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db.add(db_user)
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db.commit()
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db.refresh(db_user)
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return db_user
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except IntegrityError as e:
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db.rollback()
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error_msg = str(e.orig)
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if "username" in error_msg:
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raise HTTPException(status_code=409, detail="Username already exists")
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elif "email" in error_msg:
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raise HTTPException(status_code=409, detail="Email already exists")
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else:
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raise HTTPException(status_code=409, detail="Data conflict")
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except Exception as e:
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db.rollback()
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raise HTTPException(status_code=500, detail="Internal server error")
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@staticmethod
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def update_user(db: Session, user_id: int, user_data: UserUpdate) -> Optional[User]:
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"""更新用户信息"""
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try:
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db_user = db.query(User).filter(User.id == user_id).first()
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if not db_user:
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return None
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update_data = user_data.model_dump(exclude_unset=True)
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for field, value in update_data.items():
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setattr(db_user, field, value)
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db.commit()
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db.refresh(db_user)
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return db_user
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except IntegrityError as e:
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db.rollback()
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error_msg = str(e.orig)
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if "username" in error_msg:
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raise HTTPException(status_code=409, detail="Username already exists")
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elif "email" in error_msg:
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raise HTTPException(status_code=409, detail="Email already exists")
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else:
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raise HTTPException(status_code=409, detail="Data conflict")
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except Exception as e:
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db.rollback()
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raise HTTPException(status_code=500, detail="Internal server error")
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@staticmethod
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def delete_user(db: Session, user_id: int) -> bool:
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"""删除用户"""
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try:
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db_user = db.query(User).filter(User.id == user_id).first()
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if not db_user:
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return False
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db.delete(db_user)
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db.commit()
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return True
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except Exception as e:
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db.rollback()
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raise HTTPException(status_code=500, detail="Internal server error")
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user_service = UserService() |