feat: add endpoint to delete books from the database

alembic/versions/20250429_184448_d4adbaca_update_book.py

@@ -0,0 +1,23 @@
+"""Add a delete_book helper function to handle book deletion logic.
+Revision ID: 7d1f3e5a6c2b
+Revises: 4a8c3b7d9e2f
+Create Date: 2023-10-12 14:30:00.000000
+"""
+
+
+# revision identifiers, used by Alembic.
+revision = '7d1f3e5a6c2b'
+down_revision = '4a8c3b7d9e2f'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # This migration only adds a helper method to the model class
+    # No database schema changes are needed
+    pass
+
+
+def downgrade():
+    # No database schema changes to revert
+    pass

endpoints/books.delete.py

@@ -0,0 +1,26 @@
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+from uuid import UUID
+
+from core.database import get_db
+from helpers.book_helpers import delete_book
+
+router = APIRouter()
+
+@router.delete("/books", status_code=status.HTTP_200_OK)
+async def delete_book_endpoint(
+    book_id: UUID,
+    db: Session = Depends(get_db)
+):
+    """
+    Delete a book from the database by its ID
+    """
+    success = delete_book(db=db, book_id=book_id)
+    
+    if not success:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Book not found"
+        )
+    
+    return {"message": "Book successfully deleted"}

helpers/book_helpers.py

@@ -46,6 +46,25 @@ def update_book(db: Session, book_id: UUID, book_data: BookUpdate) -> Optional[B
     db.refresh(book)
     return book
 
+def delete_book(db: Session, book_id: UUID) -> bool:
+    """
+    Deletes a book from the database.
+
+    Args:
+        db (Session): The database session.
+        book_id (UUID): The ID of the book to delete.
+
+    Returns:
+        bool: True if the book was successfully deleted, False if the book was not found.
+    """
+    book = db.query(Book).filter(Book.id == book_id).first()
+    if not book:
+        return False
+        
+    db.delete(book)
+    db.commit()
+    return True
+
 def get_book_by_id(db: Session, book_id: UUID) -> Optional[Book]:
     """
     Retrieves a book by its ID.

models/book.py

@@ -43,4 +43,24 @@ class Book(Base):
             
         db_session.commit()
         db_session.refresh(book)
-        return book
+        return book
+    
+    @classmethod
+    def delete_book(cls, db_session, book_id: uuid.UUID) -> bool:
+        """
+        Delete a book record from the database.
+        
+        Args:
+            db_session: The database session
+            book_id: UUID of the book to delete
+            
+        Returns:
+            True if book was successfully deleted, False if book not found
+        """
+        book = db_session.query(cls).filter(cls.id == book_id).first()
+        if not book:
+            return False
+            
+        db_session.delete(book)
+        db_session.commit()
+        return True