refactor(database): use alembic to maintain the whole database

app/dependencies/database.py

@@ -30,11 +30,6 @@ async def get_db():
         yield session
 
 
-async def create_tables():
-    async with engine.begin() as conn:
-        await conn.run_sync(SQLModel.metadata.create_all)
-
-
 # Redis 依赖
 def get_redis():
     return redis_client

main.py

@@ -4,7 +4,7 @@ from contextlib import asynccontextmanager
 from datetime import datetime
 
 from app.config import settings
-from app.dependencies.database import create_tables, engine, redis_client
+from app.dependencies.database import engine, redis_client
 from app.dependencies.fetcher import get_fetcher
 from app.dependencies.scheduler import init_scheduler, stop_scheduler
 from app.router import (
@@ -21,7 +21,6 @@ from fastapi import FastAPI
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     # on startup
-    await create_tables()
     await get_fetcher()  # 初始化 fetcher
     init_scheduler()
     await daily_challenge_job()

migrations/versions/1178d0758ebf_beatmapset_support_favourite_count.py

@@ -1,40 +0,0 @@
-"""beatmapset: support favourite count
-
-Revision ID: 1178d0758ebf
-Revises:
-Create Date: 2025-08-01 04:05:09.882800
-
-"""
-
-from __future__ import annotations
-
-from collections.abc import Sequence
-
-from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import mysql
-
-# revision identifiers, used by Alembic.
-revision: str = "1178d0758ebf"
-down_revision: str | Sequence[str] | None = None
-branch_labels: str | Sequence[str] | None = None
-depends_on: str | Sequence[str] | None = None
-
-
-def upgrade() -> None:
-    """Upgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column("beatmapsets", "favourite_count")
-    # ### end Alembic commands ###
-
-
-def downgrade() -> None:
-    """Downgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column(
-        "beatmapsets",
-        sa.Column(
-            "favourite_count", mysql.INTEGER(), autoincrement=False, nullable=False
-        ),
-    )
-    # ### end Alembic commands ###

migrations/versions/58a11441d302_relationship_fix_unique_relationship.py

@@ -1,54 +0,0 @@
-"""relationship: fix unique relationship
-
-Revision ID: 58a11441d302
-Revises: 1178d0758ebf
-Create Date: 2025-08-01 04:23:02.498166
-
-"""
-
-from __future__ import annotations
-
-from collections.abc import Sequence
-
-from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import mysql
-
-# revision identifiers, used by Alembic.
-revision: str = "58a11441d302"
-down_revision: str | Sequence[str] | None = "1178d0758ebf"
-branch_labels: str | Sequence[str] | None = None
-depends_on: str | Sequence[str] | None = None
-
-
-def upgrade() -> None:
-    """Upgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column(
-        "relationship",
-        sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
-    )
-    op.drop_constraint("PRIMARY", "relationship", type_="primary")
-    op.create_primary_key("pk_relationship", "relationship", ["id"])
-    op.alter_column(
-        "relationship", "user_id", existing_type=mysql.BIGINT(), nullable=True
-    )
-    op.alter_column(
-        "relationship", "target_id", existing_type=mysql.BIGINT(), nullable=True
-    )
-    # ### end Alembic commands ###
-
-
-def downgrade() -> None:
-    """Downgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_constraint("pk_relationship", "relationship", type_="primary")
-    op.create_primary_key("PRIMARY", "relationship", ["user_id", "target_id"])
-    op.alter_column(
-        "relationship", "target_id", existing_type=mysql.BIGINT(), nullable=False
-    )
-    op.alter_column(
-        "relationship", "user_id", existing_type=mysql.BIGINT(), nullable=False
-    )
-    op.drop_column("relationship", "id")
-    # ### end Alembic commands ###

migrations/versions/d0c1b2cefe91_playlist_index_playlist_id.py

@@ -1,89 +0,0 @@
-"""playlist: index playlist id
-
-Revision ID: d0c1b2cefe91
-Revises: 58a11441d302
-Create Date: 2025-08-06 06:02:10.512616
-
-"""
-
-from __future__ import annotations
-
-from collections.abc import Sequence
-
-from alembic import op
-import sqlalchemy as sa
-
-# revision identifiers, used by Alembic.
-revision: str = "d0c1b2cefe91"
-down_revision: str | Sequence[str] | None = "58a11441d302"
-branch_labels: str | Sequence[str] | None = None
-depends_on: str | Sequence[str] | None = None
-
-
-def upgrade() -> None:
-    """Upgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_index(
-        op.f("ix_room_playlists_id"), "room_playlists", ["id"], unique=False
-    )
-    op.create_table(
-        "playlist_best_scores",
-        sa.Column("user_id", sa.BigInteger(), nullable=True),
-        sa.Column("score_id", sa.BigInteger(), nullable=False),
-        sa.Column("room_id", sa.Integer(), nullable=False),
-        sa.Column("playlist_id", sa.Integer(), nullable=False),
-        sa.Column("total_score", sa.BigInteger(), nullable=True),
-        sa.ForeignKeyConstraint(
-            ["playlist_id"],
-            ["room_playlists.id"],
-        ),
-        sa.ForeignKeyConstraint(
-            ["room_id"],
-            ["rooms.id"],
-        ),
-        sa.ForeignKeyConstraint(
-            ["score_id"],
-            ["scores.id"],
-        ),
-        sa.ForeignKeyConstraint(
-            ["user_id"],
-            ["lazer_users.id"],
-        ),
-        sa.PrimaryKeyConstraint("score_id"),
-    )
-    op.create_index(
-        op.f("ix_playlist_best_scores_playlist_id"),
-        "playlist_best_scores",
-        ["playlist_id"],
-        unique=False,
-    )
-    op.create_index(
-        op.f("ix_playlist_best_scores_room_id"),
-        "playlist_best_scores",
-        ["room_id"],
-        unique=False,
-    )
-    op.create_index(
-        op.f("ix_playlist_best_scores_user_id"),
-        "playlist_best_scores",
-        ["user_id"],
-        unique=False,
-    )
-    # ### end Alembic commands ###
-
-
-def downgrade() -> None:
-    """Downgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_index(
-        op.f("ix_playlist_best_scores_user_id"), table_name="playlist_best_scores"
-    )
-    op.drop_index(
-        op.f("ix_playlist_best_scores_room_id"), table_name="playlist_best_scores"
-    )
-    op.drop_index(
-        op.f("ix_playlist_best_scores_playlist_id"), table_name="playlist_best_scores"
-    )
-    op.drop_table("playlist_best_scores")
-    op.drop_index(op.f("ix_room_playlists_id"), table_name="room_playlists")
-    # ### end Alembic commands ###