Merge pull request #16 from wafflestudio/feature/auction

add top_bidder_id on ProductResponse

Author: snu-BuMinSeong

carrot/app/auction/models.py

@@ -23,7 +23,8 @@ class Auction(Base):
 
     id: Mapped[str] = mapped_column(String(36), primary_key=True, index=True, default=lambda: str(uuid.uuid4()))
     product_id: Mapped[str] = mapped_column(String(36), ForeignKey("product.id", ondelete="CASCADE"), nullable=False, unique=True, index=True)
-
+    top_bidder_id: Mapped[Optional[str]] = mapped_column(String(36), ForeignKey("user.id", ondelete="SET NULL"), nullable=True, index=True)
+    
     # starting_price: Mapped[int] = mapped_column(Integer, nullable=False)    # 시작가
     current_price: Mapped[int] = mapped_column(Integer, nullable=False)     # 현재가
     # is_sold: Mapped[bool] = mapped_column(Boolean, default=False)         # Product의 is_sold와 중복

carrot/app/auction/schemas.py

@@ -61,6 +61,7 @@ class Config:
 class AuctionResponse(BaseModel):
     id: str
     product_id: str
+    top_bidder_id: Optional[str]
     current_price: int
     end_at: datetime
     bid_count: int

carrot/app/auction/services.py

@@ -45,6 +45,7 @@ async def place_bid(self, auction_id: str, bidder_id: str, bid_price: int) -> Bi
         await self.repository.add_bid_without_commit(new_bid)
 
         auction.current_price = bid_price
+        auction.top_bidder_id = bidder_id
         auction.bid_count += 1
         await self.repository.update_auction_without_commit(auction)
 

carrot/db/migrations/versions/4033bf20b748_.py

@@ -0,0 +1,36 @@
+"""empty message
+
+Revision ID: 4033bf20b748
+Revises: 7fa611714908
+Create Date: 2026-02-04 03:33:33.744532
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '4033bf20b748'
+down_revision: Union[str, Sequence[str], None] = '7fa611714908'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('auction', sa.Column('top_bidder_id', sa.String(length=36), nullable=True))
+    op.create_index(op.f('ix_auction_top_bidder_id'), 'auction', ['top_bidder_id'], unique=False)
+    op.create_foreign_key(None, 'auction', 'user', ['top_bidder_id'], ['id'], ondelete='SET NULL')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'auction', type_='foreignkey')
+    op.drop_index(op.f('ix_auction_top_bidder_id'), table_name='auction')
+    op.drop_column('auction', 'top_bidder_id')
+    # ### end Alembic commands ###