feat: initial commit

2026-03-05 22:12:38 +01:00
commit bce762a783
380 changed files with 51955 additions and 0 deletions
@@ -0,0 +1,87 @@
+"""Product variants — per-product material variant support
+
+Revision ID: 022
+Revises: 021
+Create Date: 2026-03-03
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects.postgresql import UUID, JSONB
+
+revision = "022"
+down_revision = "021"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # --- New table: product_variants ---
+    op.create_table(
+        "product_variants",
+        sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
+        sa.Column("product_id", UUID(as_uuid=True), sa.ForeignKey("products.id", ondelete="CASCADE"), nullable=False, index=True),
+        sa.Column("name", sa.String(500), nullable=False),
+        sa.Column("gewuenschte_bildnummer", sa.String(500), nullable=True),
+        sa.Column("components", JSONB, nullable=False, server_default="[]"),
+        sa.Column("is_default", sa.Boolean, nullable=False, server_default="false"),
+        sa.Column("source_excel", sa.String(1000), nullable=True),
+        sa.Column("created_at", sa.DateTime, server_default=sa.func.now(), nullable=False),
+        sa.Column("updated_at", sa.DateTime, server_default=sa.func.now(), nullable=False),
+    )
+    # Unique constraint: (product_id, lower(name))
+    op.create_index(
+        "uq_product_variants_product_name",
+        "product_variants",
+        [sa.text("product_id"), sa.text("lower(name)")],
+        unique=True,
+    )
+
+    # --- Alter products ---
+    op.add_column("products", sa.Column("arbeitspaket", sa.String(500), nullable=True))
+
+    # Drop existing unique constraint on pim_id — PIM-ID is a class-level
+    # identifier shared by many products so it must NOT be unique.
+    op.drop_constraint("products_pim_id_key", "products", type_="unique")
+    op.create_index(
+        "uq_products_produkt_baureihe",
+        "products",
+        [sa.text("lower(produkt_baureihe)")],
+        unique=True,
+        postgresql_where=sa.text("produkt_baureihe IS NOT NULL AND is_active = true"),
+    )
+
+    # --- Alter order_lines ---
+    op.add_column(
+        "order_lines",
+        sa.Column(
+            "variant_id",
+            UUID(as_uuid=True),
+            sa.ForeignKey("product_variants.id", ondelete="SET NULL"),
+            nullable=True,
+        ),
+    )
+
+    # --- Backfill: create default variants for existing products ---
+    op.execute("""
+        INSERT INTO product_variants (id, product_id, name, components, is_default, source_excel, created_at, updated_at)
+        SELECT
+            gen_random_uuid(),
+            p.id,
+            COALESCE(p.name, p.pim_id),
+            COALESCE(p.components, '[]'::jsonb),
+            true,
+            p.source_excel,
+            NOW(),
+            NOW()
+        FROM products p
+        WHERE p.name IS NOT NULL OR p.pim_id IS NOT NULL
+    """)
+
+
+def downgrade() -> None:
+    op.drop_column("order_lines", "variant_id")
+    op.drop_index("uq_products_produkt_baureihe", "products")
+    op.create_unique_constraint("products_pim_id_key", "products", ["pim_id"])
+    op.drop_column("products", "arbeitspaket")
+    op.drop_index("uq_product_variants_product_name", "product_variants")
+    op.drop_table("product_variants")