diff --git a/alembic/versions/20250426_081917_d25791a6_update_book.py b/alembic/versions/20250426_081917_d25791a6_update_book.py new file mode 100644 index 0000000..70ae4a5 --- /dev/null +++ b/alembic/versions/20250426_081917_d25791a6_update_book.py @@ -0,0 +1,34 @@ +"""create table for books +Revision ID: 2f7a3d8c2b62 +Revises: 0001 +Create Date: 2023-05-23 12:00:00 +""" +from alembic import op +import sqlalchemy as sa +from sqlalchemy.sql import func + + +# revision identifiers, used by Alembic. +revision = '2f7a3d8c2b62' +down_revision = '0001' +branch_labels = None +depends_on = None + + +def upgrade(): + op.create_table( + 'books', + sa.Column('id', sa.String(36), primary_key=True, server_default=sa.text("uuid_generate_v4()")), + sa.Column('title', sa.String(), nullable=False), + sa.Column('author', sa.String(), nullable=False), + sa.Column('description', sa.String(), nullable=True), + sa.Column('pages', sa.Integer(), nullable=False), + sa.Column('publisher_id', sa.String(36), nullable=False), + sa.Column('created_at', sa.DateTime(), server_default=func.now()), + sa.Column('updated_at', sa.DateTime(), server_default=func.now(), onupdate=func.now()), + sa.ForeignKeyConstraint(['publisher_id'], ['publishers.id'], ), + ) + + +def downgrade(): + op.drop_table('books') \ No newline at end of file diff --git a/endpoints/books.post.py b/endpoints/books.post.py index e69de29..c9a1abd 100644 --- a/endpoints/books.post.py +++ b/endpoints/books.post.py @@ -0,0 +1,17 @@ +from fastapi import APIRouter, status +from schemas.book import BookCreate, BookSchema +from helpers.book_helpers import create_book +from sqlalchemy.orm import Session +from fastapi import Depends +from core.database import get_db + +router = APIRouter() + +@router.post("/books", status_code=status.HTTP_201_CREATED, response_model=BookSchema) +async def create_new_book( + book: BookCreate, + db: Session = Depends(get_db) +): + """Create a new book""" + new_book = create_book(db=db, book_data=book) + return new_book \ No newline at end of file diff --git a/helpers/book_helpers.py b/helpers/book_helpers.py new file mode 100644 index 0000000..58689d3 --- /dev/null +++ b/helpers/book_helpers.py @@ -0,0 +1,35 @@ +from typing import Optional +from uuid import UUID +from sqlalchemy.orm import Session +from models.book import Book +from schemas.book import BookCreate + +def create_book(db: Session, book_data: BookCreate) -> Book: + """ + Creates a new book in the database. + + Args: + db (Session): The database session. + book_data (BookCreate): The data for the book to create. + + Returns: + Book: The newly created book object. + """ + db_book = Book(**book_data.dict()) + db.add(db_book) + db.commit() + db.refresh(db_book) + return db_book + +def get_book_by_id(db: Session, book_id: UUID) -> Optional[Book]: + """ + Retrieves a single book by its ID. + + Args: + db (Session): The database session. + book_id (UUID): The ID of the book to retrieve. + + Returns: + Optional[Book]: The book object if found, otherwise None. + """ + return db.query(Book).filter(Book.id == book_id).first() \ No newline at end of file diff --git a/models/book.py b/models/book.py new file mode 100644 index 0000000..afe6ef1 --- /dev/null +++ b/models/book.py @@ -0,0 +1,21 @@ +from sqlalchemy import Column, String, Integer, DateTime, ForeignKey +from sqlalchemy.dialects.postgresql import UUID +from sqlalchemy.orm import relationship +from sqlalchemy.sql import func +from core.database import Base +import uuid + +class Book(Base): + __tablename__ = "books" + + id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4) + title = Column(String, nullable=False) + author = Column(String, nullable=False) + description = Column(String, nullable=True) + pages = Column(Integer, nullable=False) + publisher_id = Column(UUID(as_uuid=True), ForeignKey("publishers.id"), nullable=False) + + publisher = relationship("Publisher", back_populates="books") + + created_at = Column(DateTime, default=func.now()) + updated_at = Column(DateTime, default=func.now(), onupdate=func.now()) \ No newline at end of file diff --git a/schemas/book.py b/schemas/book.py new file mode 100644 index 0000000..a4bd391 --- /dev/null +++ b/schemas/book.py @@ -0,0 +1,29 @@ +from pydantic import BaseModel, Field +from typing import Optional +from datetime import datetime +from uuid import UUID + +class BookBase(BaseModel): + title: str = Field(..., description="Book title") + author: str = Field(..., description="Book author") + description: Optional[str] = Field(None, description="Book description") + pages: int = Field(..., gt=0, description="Number of pages") + publisher_id: UUID = Field(..., description="Publisher ID") + +class BookCreate(BookBase): + pass + +class BookUpdate(BookBase): + title: Optional[str] = Field(None, description="Book title") + author: Optional[str] = Field(None, description="Book author") + description: Optional[str] = Field(None, description="Book description") + pages: Optional[int] = Field(None, gt=0, description="Number of pages") + publisher_id: Optional[UUID] = Field(None, description="Publisher ID") + +class BookSchema(BookBase): + id: UUID + created_at: datetime + updated_at: datetime + + class Config: + orm_mode = True \ No newline at end of file