ef806f8fbb
Phase 1-3 of decoupling plan: - Shared DB, models, infrastructure, browser, config, utils - Event infrastructure (domain_events outbox, bus, processor) - Structured logging - Generic container concept (container_type/container_id) - Alembic migrations for all schema changes Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
79 lines
2.0 KiB
Python
79 lines
2.0 KiB
Python
"""Add cart_items table for shopping cart"""
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision = "0002_add_cart_items"
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down_revision = "0001_initial_schema"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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op.create_table(
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"cart_items",
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sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
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# Either a logged-in user *or* an anonymous session_id
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sa.Column(
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"user_id",
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sa.Integer(),
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sa.ForeignKey("users.id", ondelete="CASCADE"),
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nullable=True,
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),
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sa.Column("session_id", sa.String(length=128), nullable=True),
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# IMPORTANT: reference products.id (PK), not slug
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sa.Column(
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"product_id",
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sa.Integer(),
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sa.ForeignKey("products.id", ondelete="CASCADE"),
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nullable=False,
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),
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sa.Column(
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"quantity",
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sa.Integer(),
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nullable=False,
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server_default="1",
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),
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sa.Column(
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"created_at",
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sa.DateTime(timezone=True),
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nullable=False,
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server_default=sa.text("now()"),
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),
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sa.Column(
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"updated_at",
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sa.DateTime(timezone=True),
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nullable=False,
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server_default=sa.text("now()"),
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),
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sa.Column(
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"deleted_at",
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sa.DateTime(timezone=True),
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nullable=True,
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),
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)
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# Indexes to speed up cart lookups
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op.create_index(
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"ix_cart_items_user_product",
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"cart_items",
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["user_id", "product_id"],
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unique=False,
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)
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op.create_index(
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"ix_cart_items_session_product",
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"cart_items",
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["session_id", "product_id"],
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unique=False,
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)
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def downgrade() -> None:
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op.drop_index("ix_cart_items_session_product", table_name="cart_items")
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op.drop_index("ix_cart_items_user_product", table_name="cart_items")
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op.drop_table("cart_items")
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