993e1df71e
- Set up project structure with app modules - Configure SQLite database connection - Set up Alembic for database migrations - Implement Item model with CRUD operations - Create API endpoints for items management - Add health check endpoint - Add API documentation - Add comprehensive README
121 lines
3.1 KiB
Python
121 lines
3.1 KiB
Python
"""
|
|
Base CRUD operations.
|
|
"""
|
|
from typing import Any, Dict, Generic, List, Optional, Type, TypeVar, Union
|
|
|
|
from fastapi.encoders import jsonable_encoder
|
|
from pydantic import BaseModel
|
|
from sqlalchemy.orm import Session
|
|
|
|
from app.db.base_class import Base
|
|
|
|
ModelType = TypeVar("ModelType", bound=Base)
|
|
CreateSchemaType = TypeVar("CreateSchemaType", bound=BaseModel)
|
|
UpdateSchemaType = TypeVar("UpdateSchemaType", bound=BaseModel)
|
|
|
|
|
|
class CRUDBase(Generic[ModelType, CreateSchemaType, UpdateSchemaType]):
|
|
"""Base class for CRUD operations."""
|
|
|
|
def __init__(self, model: Type[ModelType]):
|
|
"""
|
|
Initialize with SQLAlchemy model class.
|
|
|
|
Args:
|
|
model: SQLAlchemy model class
|
|
"""
|
|
self.model = model
|
|
|
|
def get(self, db: Session, id: Any) -> Optional[ModelType]:
|
|
"""
|
|
Get an object by ID.
|
|
|
|
Args:
|
|
db: Database session
|
|
id: Object ID
|
|
|
|
Returns:
|
|
Optional object
|
|
"""
|
|
return db.query(self.model).filter(self.model.id == id).first()
|
|
|
|
def get_multi(
|
|
self, db: Session, *, skip: int = 0, limit: int = 100
|
|
) -> List[ModelType]:
|
|
"""
|
|
Get multiple objects.
|
|
|
|
Args:
|
|
db: Database session
|
|
skip: Number of objects to skip
|
|
limit: Maximum number of objects to return
|
|
|
|
Returns:
|
|
List of objects
|
|
"""
|
|
return db.query(self.model).offset(skip).limit(limit).all()
|
|
|
|
def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
|
|
"""
|
|
Create a new object.
|
|
|
|
Args:
|
|
db: Database session
|
|
obj_in: Object to create
|
|
|
|
Returns:
|
|
Created object
|
|
"""
|
|
obj_in_data = jsonable_encoder(obj_in)
|
|
db_obj = self.model(**obj_in_data) # type: ignore
|
|
db.add(db_obj)
|
|
db.commit()
|
|
db.refresh(db_obj)
|
|
return db_obj
|
|
|
|
def update(
|
|
self,
|
|
db: Session,
|
|
*,
|
|
db_obj: ModelType,
|
|
obj_in: Union[UpdateSchemaType, Dict[str, Any]]
|
|
) -> ModelType:
|
|
"""
|
|
Update an object.
|
|
|
|
Args:
|
|
db: Database session
|
|
db_obj: Object to update
|
|
obj_in: Object data to update with
|
|
|
|
Returns:
|
|
Updated object
|
|
"""
|
|
obj_data = jsonable_encoder(db_obj)
|
|
if isinstance(obj_in, dict):
|
|
update_data = obj_in
|
|
else:
|
|
update_data = obj_in.model_dump(exclude_unset=True)
|
|
for field in obj_data:
|
|
if field in update_data:
|
|
setattr(db_obj, field, update_data[field])
|
|
db.add(db_obj)
|
|
db.commit()
|
|
db.refresh(db_obj)
|
|
return db_obj
|
|
|
|
def remove(self, db: Session, *, id: Any) -> ModelType:
|
|
"""
|
|
Delete an object.
|
|
|
|
Args:
|
|
db: Database session
|
|
id: Object ID
|
|
|
|
Returns:
|
|
Deleted object
|
|
"""
|
|
obj = db.query(self.model).get(id)
|
|
db.delete(obj)
|
|
db.commit()
|
|
return obj |