Erste Produktivversion

backend/alembic/versions/0009_prices.py

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+"""Phase 7: Preisdatenbank
+
+Revision ID: 0009
+Revises: 0008
+Create Date: 2026-08-08
+"""
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0009"
+down_revision: str | None = "0008"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "price_point",
+        sa.Column("id", sa.String(36), primary_key=True),
+        sa.Column("list_id", sa.String(36), nullable=False),
+        sa.Column("article_id", sa.String(36), nullable=False),
+        sa.Column("market_id", sa.String(36), nullable=False),
+        sa.Column("price_cents", sa.Integer(), nullable=False),
+        sa.Column("quantity", sa.Numeric(10, 3), nullable=True),
+        sa.Column("unit", sa.String(32), nullable=True),
+        sa.Column("recorded_at", sa.DateTime(), nullable=False,
+                  server_default=sa.func.now()),
+        sa.ForeignKeyConstraint(["list_id"], ["shopping_list.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["article_id"], ["article.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["market_id"], ["market.id"], ondelete="CASCADE"),
+        mysql_engine="InnoDB",
+        mysql_charset="utf8mb4",
+        mysql_collate="utf8mb4_unicode_ci",
+    )
+    op.create_index("ix_price_article_market", "price_point",
+                    ["article_id", "market_id", "recorded_at"])
+    op.create_index("ix_price_list", "price_point", ["list_id", "recorded_at"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_price_list", table_name="price_point")
+    op.drop_index("ix_price_article_market", table_name="price_point")
+    op.drop_table("price_point")