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Meal-Planner/backend/alembic/versions/0006_recipe_engine_thin.py
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Python

"""thin phase 4: ingredient.aliases, recipe.calories_per_serving, ingredient_grocery_match
Revision ID: 0006_recipe_engine_thin
Revises: 0005_grocery_item_external_id
Create Date: 2026-05-05
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql
from sqlalchemy.dialects.postgresql import UUID, ARRAY
revision = "0006"
down_revision = "0005"
branch_labels = None
depends_on = None
def upgrade() -> None:
op.add_column(
"ingredient",
sa.Column(
"aliases",
ARRAY(sa.Text()),
nullable=False,
server_default="{}",
),
)
op.add_column(
"recipe",
sa.Column("calories_per_serving", sa.Integer(), nullable=True),
)
op.execute(
"CREATE TYPE ingredient_match_source_enum AS ENUM ('auto', 'manual')"
)
op.create_table(
"ingredient_grocery_match",
sa.Column(
"id",
UUID(as_uuid=True),
primary_key=True,
server_default=sa.text("gen_random_uuid()"),
),
sa.Column(
"ingredient_id",
UUID(as_uuid=True),
sa.ForeignKey("ingredient.id", ondelete="CASCADE"),
nullable=False,
),
sa.Column(
"grocery_item_id",
UUID(as_uuid=True),
sa.ForeignKey("grocery_item.id", ondelete="CASCADE"),
nullable=False,
),
sa.Column("confidence", sa.Numeric(4, 3), nullable=False),
sa.Column(
"source",
postgresql.ENUM(
name="ingredient_match_source_enum",
create_type=False,
),
nullable=False,
),
sa.Column(
"updated_at",
sa.DateTime(timezone=True),
server_default=sa.func.now(),
nullable=False,
),
sa.UniqueConstraint(
"ingredient_id",
"grocery_item_id",
name="uq_ingredient_grocery_match_pair",
),
)
op.create_index(
"ix_ingredient_grocery_match_ingredient_confidence",
"ingredient_grocery_match",
["ingredient_id", sa.text("confidence DESC")],
)
def downgrade() -> None:
op.drop_index(
"ix_ingredient_grocery_match_ingredient_confidence",
table_name="ingredient_grocery_match",
)
op.drop_table("ingredient_grocery_match")
op.execute("DROP TYPE IF EXISTS ingredient_match_source_enum")
op.drop_column("recipe", "calories_per_serving")
op.drop_column("ingredient", "aliases")