Improve the frontend 3

services/inventory/migrations/versions/20251029_1400_add_local_production_support.py

@@ -0,0 +1,77 @@
+"""add_local_production_support
+
+Revision ID: add_local_production_support
+Revises: e7fcea67bf4e
+Create Date: 2025-10-29 14:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = 'add_local_production_support'
+down_revision = 'e7fcea67bf4e'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    """Add local production support columns to ingredients table"""
+
+    # Add produced_locally column
+    op.add_column('ingredients', sa.Column(
+        'produced_locally',
+        sa.Boolean(),
+        nullable=False,
+        server_default='false',
+        comment='If true, ingredient is produced in-house and requires BOM explosion'
+    ))
+
+    # Add recipe_id column for BOM explosion
+    op.add_column('ingredients', sa.Column(
+        'recipe_id',
+        postgresql.UUID(as_uuid=True),
+        nullable=True,
+        comment='Links to recipe for BOM explosion when ingredient is produced locally'
+    ))
+
+    # Create index for efficient querying of locally-produced ingredients
+    op.create_index(
+        'ix_ingredients_produced_locally',
+        'ingredients',
+        ['produced_locally'],
+        unique=False
+    )
+
+    # Create index for recipe_id lookups
+    op.create_index(
+        'ix_ingredients_recipe_id',
+        'ingredients',
+        ['recipe_id'],
+        unique=False
+    )
+
+    # Add check constraint: if produced_locally is true, recipe_id should be set
+    # Note: This is a soft constraint - we allow NULL recipe_id even if produced_locally=true
+    # to support gradual data migration and edge cases
+    # op.create_check_constraint(
+    #     'ck_ingredients_local_production',
+    #     'ingredients',
+    #     'produced_locally = false OR recipe_id IS NOT NULL'
+    # )
+
+
+def downgrade() -> None:
+    """Remove local production support columns from ingredients table"""
+
+    # Drop check constraint
+    # op.drop_constraint('ck_ingredients_local_production', 'ingredients', type_='check')
+
+    # Drop indexes
+    op.drop_index('ix_ingredients_recipe_id', table_name='ingredients')
+    op.drop_index('ix_ingredients_produced_locally', table_name='ingredients')
+
+    # Drop columns
+    op.drop_column('ingredients', 'recipe_id')
+    op.drop_column('ingredients', 'produced_locally')