fix(daily-challenge): fix duplicated top 10%/50% placements

migrations/versions/178873984b22_daily_challenge_add_last_day_streak.py

@@ -0,0 +1,47 @@
+"""daily_challenge: add last_day_streak
+
+Revision ID: 178873984b22
+Revises: 5b76689f6e4b
+Create Date: 2025-08-22 13:34:31.282236
+
+"""
+
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision: str = "178873984b22"
+down_revision: str | Sequence[str] | None = "5b76689f6e4b"
+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.alter_column(
+        "daily_challenge_stats",
+        "last_update",
+        new_column_name="last_day_streak",
+        existing_type=sa.DateTime(),
+        nullable=True,
+    )
+    op.add_column("daily_challenge_stats", sa.Column("last_update", sa.DateTime(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column(
+        "daily_challenge_stats",
+        "last_update",
+        existing_type=sa.DateTime(),
+        nullable=True,
+    )
+    op.alter_column("daily_challenge_stats", "last_day_streak", new_column_name="last_update")
+    # ### end Alembic commands ###