Create new services: inventory, recipes, suppliers

services/sales/migrations/versions/003_add_inventory_product_reference.py

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+"""Add inventory product reference and remove redundant product model
+
+Revision ID: 003
+Revises: 002
+Create Date: 2025-01-15 11:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '003'
+down_revision = '002'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Add inventory product reference to sales_data table
+    op.add_column('sales_data', sa.Column('inventory_product_id', 
+        postgresql.UUID(as_uuid=True), nullable=True))
+    
+    # Add product_type column for caching product type from inventory
+    op.add_column('sales_data', sa.Column('product_type', 
+        sa.String(20), nullable=True))
+    
+    # Create indexes for new columns
+    op.create_index('idx_sales_inventory_product', 'sales_data', 
+                   ['inventory_product_id', 'tenant_id'])
+    op.create_index('idx_sales_product_type', 'sales_data', 
+                   ['product_type', 'tenant_id', 'date'])
+    
+    # Drop the redundant products table if it exists
+    op.execute("DROP TABLE IF EXISTS products CASCADE;")
+
+
+def downgrade() -> None:
+    # Drop new indexes
+    op.drop_index('idx_sales_product_type', table_name='sales_data')
+    op.drop_index('idx_sales_inventory_product', table_name='sales_data')
+    
+    # Remove new columns
+    op.drop_column('sales_data', 'product_type')
+    op.drop_column('sales_data', 'inventory_product_id')
+    
+    # Recreate products table (basic version)
+    op.create_table(
+        'products',
+        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('tenant_id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('name', sa.String(255), nullable=False),
+        sa.Column('sku', sa.String(100), nullable=True),
+        sa.Column('category', sa.String(100), nullable=True),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('is_active', sa.Boolean(), default=True),
+        sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+        sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+        sa.PrimaryKeyConstraint('id')
+    )
+    
+    # Recreate basic indexes
+    op.create_index('idx_products_tenant_name', 'products', ['tenant_id', 'name'], unique=True)
+    op.create_index('idx_products_tenant_sku', 'products', ['tenant_id', 'sku'])

services/sales/migrations/versions/004_remove_cached_product_fields.py

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+"""Remove cached product fields - use only inventory_product_id
+
+Revision ID: 004
+Revises: 003
+Create Date: 2025-01-15 12:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '004'
+down_revision = '003'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Make inventory_product_id required (NOT NULL)
+    op.alter_column('sales_data', 'inventory_product_id', nullable=False)
+    
+    # Remove cached product fields - inventory service is single source of truth
+    op.drop_column('sales_data', 'product_name')
+    op.drop_column('sales_data', 'product_category')
+    op.drop_column('sales_data', 'product_sku')
+    op.drop_column('sales_data', 'product_type')
+    
+    # Drop old indexes that referenced removed fields
+    op.execute("DROP INDEX IF EXISTS idx_sales_tenant_product")
+    op.execute("DROP INDEX IF EXISTS idx_sales_tenant_category")
+    op.execute("DROP INDEX IF EXISTS idx_sales_product_date")
+    op.execute("DROP INDEX IF EXISTS idx_sales_sku_date")
+    op.execute("DROP INDEX IF EXISTS idx_sales_product_type")
+    
+    # Create optimized indexes for inventory-only approach
+    op.create_index('idx_sales_inventory_product_date', 'sales_data', 
+                   ['inventory_product_id', 'date', 'tenant_id'])
+    op.create_index('idx_sales_tenant_inventory_product', 'sales_data', 
+                   ['tenant_id', 'inventory_product_id'])
+
+
+def downgrade() -> None:
+    # Drop new indexes
+    op.drop_index('idx_sales_tenant_inventory_product', table_name='sales_data')
+    op.drop_index('idx_sales_inventory_product_date', table_name='sales_data')
+    
+    # Add back cached product fields for downgrade compatibility
+    op.add_column('sales_data', sa.Column('product_name', sa.String(255), nullable=True))
+    op.add_column('sales_data', sa.Column('product_category', sa.String(100), nullable=True))
+    op.add_column('sales_data', sa.Column('product_sku', sa.String(100), nullable=True))
+    op.add_column('sales_data', sa.Column('product_type', sa.String(20), nullable=True))
+    
+    # Make inventory_product_id optional again
+    op.alter_column('sales_data', 'inventory_product_id', nullable=True)
+    
+    # Recreate old indexes
+    op.create_index('idx_sales_tenant_product', 'sales_data', ['tenant_id', 'product_name'])
+    op.create_index('idx_sales_tenant_category', 'sales_data', ['tenant_id', 'product_category'])
+    op.create_index('idx_sales_product_date', 'sales_data', ['product_name', 'date', 'tenant_id'])
+    op.create_index('idx_sales_sku_date', 'sales_data', ['product_sku', 'date', 'tenant_id'])