Initial commit

backend/app/crud/__init__.py

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+"""CRUD operations package."""
+
+from app.crud.user import user
+from app.crud import settings
+
+__all__ = ["user", "settings"]

backend/app/crud/base.py

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+"""Base CRUD operations for database models."""
+
+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 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]):
+        """
+        CRUD object with default methods to Create, Read, Update, Delete (CRUD).
+
+        **Parameters**
+
+        * `model`: A SQLAlchemy model class
+        * `schema`: A Pydantic model (schema) class
+        """
+        self.model = model
+
+    def get(self, db: Session, id: Any) -> Optional[ModelType]:
+        """Get a single record by ID."""
+        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 records with pagination."""
+        return db.query(self.model).offset(skip).limit(limit).all()
+
+    def create(self, db: Session, *, obj_in: CreateSchemaType) -> ModelType:
+        """Create a new record."""
+        obj_in_data = jsonable_encoder(obj_in)
+        db_obj = self.model(**obj_in_data)
+        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 a record."""
+        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 delete(self, db: Session, *, id: Any) -> ModelType:
+        """Delete a record."""
+        obj = db.query(self.model).get(id)
+        db.delete(obj)
+        db.commit()
+        return obj
+
+    def remove(self, db: Session, *, id: Any) -> ModelType:
+        """Remove a record (alias for delete)."""
+        return self.delete(db, id=id)

backend/app/crud/settings.py

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+"""CRUD operations for Settings."""
+
+from typing import Optional
+from sqlalchemy.orm import Session
+
+from app.models.settings import Settings
+
+
+def get_setting(db: Session, key: str) -> Optional[Settings]:
+    """Get a setting by key."""
+    return db.query(Settings).filter(Settings.key == key).first()
+
+
+def get_setting_value(db: Session, key: str, default: any = None) -> any:
+    """Get a setting value by key, with optional default."""
+    setting = get_setting(db, key)
+    if setting:
+        return setting.get_value()
+    return default
+
+
+def update_setting(db: Session, key: str, value: any) -> Settings:
+    """Update or create a setting."""
+    setting = get_setting(db, key)
+    
+    if setting is None:
+        setting = Settings(key=key)
+        db.add(setting)
+    
+    # Determine if value is bool or string
+    if isinstance(value, bool):
+        setting.value_bool = value
+        setting.value_str = None
+    elif isinstance(value, str) and value.lower() in ('true', 'false'):
+        setting.value_bool = value.lower() == 'true'
+        setting.value_str = None
+    else:
+        setting.value_str = str(value)
+        setting.value_bool = None
+    
+    db.commit()
+    db.refresh(setting)
+    return setting
+
+
+def get_all_settings(db: Session) -> list[Settings]:
+    """Get all settings."""
+    return db.query(Settings).all()

backend/app/crud/user.py

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+"""CRUD operations for User model."""
+
+from typing import Optional
+from sqlalchemy.orm import Session
+
+from app.crud.base import CRUDBase
+from app.models.user import User
+from app.schemas.user import UserCreate, UserUpdate
+from app.core.security import get_password_hash, verify_password
+
+
+class CRUDUser(CRUDBase[User, UserCreate, UserUpdate]):
+    """CRUD operations for User model."""
+
+    def get_by_email(self, db: Session, *, email: str) -> Optional[User]:
+        """Get user by email."""
+        return db.query(User).filter(User.email == email).first()
+
+    def get_by_username(self, db: Session, *, username: str) -> Optional[User]:
+        """Get user by username."""
+        return db.query(User).filter(User.username == username).first()
+
+    def create(self, db: Session, *, obj_in: UserCreate) -> User:
+        """Create a new user with hashed password."""
+        db_obj = User(
+            username=obj_in.username,
+            email=obj_in.email,
+            hashed_password=get_password_hash(obj_in.password),
+            is_active=obj_in.is_active,
+            is_superuser=obj_in.is_superuser,
+        )
+        # Set permissions if provided
+        if obj_in.permissions is not None:
+            db_obj.permissions = obj_in.permissions
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+        return db_obj
+
+    def update(
+        self, db: Session, *, db_obj: User, obj_in: UserUpdate
+    ) -> User:
+        """Update user, hashing password if provided."""
+        update_data = obj_in.model_dump(exclude_unset=True)
+
+        if "password" in update_data and update_data["password"]:
+            hashed_password = get_password_hash(update_data["password"])
+            del update_data["password"]
+            update_data["hashed_password"] = hashed_password
+
+        # Handle permissions separately since it uses a property setter
+        if "permissions" in update_data:
+            db_obj.permissions = update_data.pop("permissions")
+
+        return super().update(db, db_obj=db_obj, obj_in=update_data)
+
+    def authenticate(
+        self, db: Session, *, username: str, password: str
+    ) -> Optional[User]:
+        """Authenticate a user by username and password."""
+        user = self.get_by_username(db, username=username)
+        if not user:
+            return None
+        if not verify_password(password, user.hashed_password):
+            return None
+        return user
+
+    def is_active(self, user: User) -> bool:
+        """Check if user is active."""
+        return user.is_active
+
+    def is_superuser(self, user: User) -> bool:
+        """Check if user is superuser."""
+        return user.is_superuser
+
+
+# Create instance
+user = CRUDUser(User)