Initial commit: svg backend

backend/alembic/versions/20260316_09_create_pricing_tables.py

@@ -0,0 +1,59 @@
+"""create pricing tables
+
+Revision ID: 20260316_09
+Revises: 20260316_08
+Create Date: 2026-03-16 16:40:00
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = "20260316_09"
+down_revision = "20260316_08"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "pricing_categories",
+        sa.Column("id", sa.BigInteger(), primary_key=True, autoincrement=True),
+        sa.Column("pricing_category_id", sa.String(length=32), nullable=False),
+        sa.Column("scheme_id", sa.String(length=32), nullable=False),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column("code", sa.String(length=128), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.ForeignKeyConstraint(["scheme_id"], ["schemes.scheme_id"], ondelete="RESTRICT"),
+    )
+    op.create_index("ix_pricing_categories_pricing_category_id", "pricing_categories", ["pricing_category_id"], unique=True)
+    op.create_index("ix_pricing_categories_scheme_id", "pricing_categories", ["scheme_id"], unique=False)
+
+    op.create_table(
+        "price_rules",
+        sa.Column("id", sa.BigInteger(), primary_key=True, autoincrement=True),
+        sa.Column("price_rule_id", sa.String(length=32), nullable=False),
+        sa.Column("scheme_id", sa.String(length=32), nullable=False),
+        sa.Column("pricing_category_id", sa.String(length=32), nullable=True),
+        sa.Column("target_type", sa.String(length=32), nullable=False),
+        sa.Column("target_ref", sa.String(length=255), nullable=False),
+        sa.Column("amount", sa.Numeric(12, 2), nullable=False),
+        sa.Column("currency", sa.String(length=3), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.ForeignKeyConstraint(["scheme_id"], ["schemes.scheme_id"], ondelete="RESTRICT"),
+        sa.ForeignKeyConstraint(["pricing_category_id"], ["pricing_categories.pricing_category_id"], ondelete="SET NULL"),
+    )
+    op.create_index("ix_price_rules_price_rule_id", "price_rules", ["price_rule_id"], unique=True)
+    op.create_index("ix_price_rules_scheme_id", "price_rules", ["scheme_id"], unique=False)
+    op.create_index("ix_price_rules_pricing_category_id", "price_rules", ["pricing_category_id"], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index("ix_price_rules_pricing_category_id", table_name="price_rules")
+    op.drop_index("ix_price_rules_scheme_id", table_name="price_rules")
+    op.drop_index("ix_price_rules_price_rule_id", table_name="price_rules")
+    op.drop_table("price_rules")
+
+    op.drop_index("ix_pricing_categories_scheme_id", table_name="pricing_categories")
+    op.drop_index("ix_pricing_categories_pricing_category_id", table_name="pricing_categories")
+    op.drop_table("pricing_categories")