feat(sector-radar): add weighted scores and rank-change views

2026-09-21 23:57:55 +08:00
parent 669e89d3c3
commit b9981aa48d
45 changed files with 2468 additions and 320 deletions
@@ -0,0 +1,27 @@
+"""Keep weighted ranking scores separate from raw flow values."""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "0010_radar_weighted_score"
+down_revision = "0009_radar_sector_detail"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    """Preserve existing publication rows with an unknown (NULL) score."""
+    op.add_column(
+        "sector_radar_ranking", sa.Column("weighted_score", sa.Numeric(28, 12), nullable=True)
+    )
+    op.create_check_constraint(
+        "ck_radar_weighted_score_finite",
+        "sector_radar_ranking",
+        "weighted_score IS NULL OR weighted_score NOT IN "
+        "('NaN'::numeric, 'Infinity'::numeric, '-Infinity'::numeric)",
+    )
+
+
+def downgrade() -> None:
+    """Remove the additional score projection without changing raw values."""
+    op.drop_column("sector_radar_ranking", "weighted_score")