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beige/backend/alembic/versions/004_flywheel_preference_events.py
yangqianqian 6a2632da70 baseline: Clover 独立仓库首次基线提交
将 Clover 从上层产品包旧仓库中独立出来,建立专属版本控制。
当前状态=纵切片端到端已打通(登录→选品→出文出图→审核→下载包),
M1文案质量去套路化已验收。此提交作为后续按核销清单逐条修复的基线。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-16 11:30:22 +08:00

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"""004_flywheel_preference_events
Revision ID: 004
Revises: 003
Create Date: 2026-06-09
Alembic 004: 飞轮信号表
preference_events 一期建表写入
preference_profile 二期预留,一期不建
"""
from typing import Sequence, Union
import sqlalchemy as sa
from alembic import op
revision: str = "004"
down_revision: Union[str, None] = "003"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None
_SIGNAL_TYPE = sa.Enum(
"text_select", "image_select", "approve",
"reject_with_reason", "regenerate",
name="signaltype",
)
_DATA_OWNERSHIP = sa.Enum("client_data", "platform_asset", name="dataownership")
def upgrade() -> None:
op.create_table(
"preference_events",
sa.Column("id", sa.BigInteger(), autoincrement=True, nullable=False),
sa.Column("workspace_id", sa.BigInteger(), nullable=False),
sa.Column("product_id", sa.BigInteger(), nullable=False),
sa.Column("task_id", sa.BigInteger(), nullable=False),
sa.Column("user_id", sa.BigInteger(), nullable=False),
sa.Column("signal_type", _SIGNAL_TYPE, nullable=False),
sa.Column("signal_weight", sa.Integer(), nullable=False),
sa.Column("candidate_id", sa.BigInteger(), nullable=True),
sa.Column("angle_label", sa.String(64), nullable=True),
sa.Column("reason", sa.Text(), nullable=True),
sa.Column("signal_meta", sa.Text(), nullable=True),
sa.Column(
"data_ownership", _DATA_OWNERSHIP,
nullable=False, server_default="client_data",
),
sa.Column(
"created_at", sa.DateTime(),
server_default=sa.text("now()"), nullable=False,
),
sa.ForeignKeyConstraint(["product_id"], ["products.id"]),
sa.ForeignKeyConstraint(["task_id"], ["generation_tasks.id"]),
sa.ForeignKeyConstraint(["user_id"], ["users.id"]),
sa.PrimaryKeyConstraint("id"),
)
op.create_index(
"idx_preference_events_ws_product_created",
"preference_events",
["workspace_id", "product_id", "created_at"],
)
# preference_profile 二期预留,一期不建
def downgrade() -> None:
op.drop_index("idx_preference_events_ws_product_created", "preference_events")
op.drop_table("preference_events")
# MySQL 不支持 DROP TYPE枚举存 VARCHAR 无需清理