50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
"""Base repository for common database operations."""
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from typing import Generic, TypeVar, Type, List, Optional
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from sqlalchemy.orm import Session
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ModelType = TypeVar("ModelType")
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class BaseRepository(Generic[ModelType]):
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"""Base repository with common CRUD operations."""
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def __init__(self, model: Type[ModelType], db: Session):
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"""Initialize repository with model and database session."""
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self.model = model
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self.db = db
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def get_by_id(self, id: int) -> Optional[ModelType]:
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"""Get a single record by ID."""
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return self.db.query(self.model).filter(self.model.id == id).first()
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def get_all(self) -> List[ModelType]:
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"""Get all records."""
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return self.db.query(self.model).all()
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def create(self, **kwargs) -> ModelType:
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"""Create a new record."""
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db_obj = self.model(**kwargs)
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self.db.add(db_obj)
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self.db.commit()
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self.db.refresh(db_obj)
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return db_obj
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def update(self, id: int, **kwargs) -> Optional[ModelType]:
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"""Update a record by ID."""
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db_obj = self.get_by_id(id)
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if db_obj:
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for key, value in kwargs.items():
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setattr(db_obj, key, value)
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self.db.commit()
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self.db.refresh(db_obj)
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return db_obj
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def delete(self, id: int) -> bool:
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"""Delete a record by ID."""
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db_obj = self.get_by_id(id)
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if db_obj:
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self.db.delete(db_obj)
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self.db.commit()
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return True
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return False
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