Jonathan
486749a890
Full-stack Dutch supermarket price tracker with FastAPI backend, PostgreSQL/SQLAlchemy, Albert Heijn scraper, and Next.js frontend. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
86 lines
3.3 KiB
Python
86 lines
3.3 KiB
Python
"""initial
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Revision ID: 001
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Revises:
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Create Date: 2024-01-01 00:00:00.000000
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"""
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from typing import Sequence, Union
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import sqlalchemy as sa
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from alembic import op
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revision: str = "001"
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down_revision: Union[str, None] = None
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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op.create_table(
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"stores",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("name", sa.String(100), nullable=False),
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sa.Column("slug", sa.String(50), nullable=False),
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sa.Column("country", sa.String(2), server_default="NL"),
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sa.Column("website", sa.String(255)),
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sa.UniqueConstraint("slug", name="uq_stores_slug"),
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)
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op.create_table(
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"products",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("store_id", sa.Integer(), sa.ForeignKey("stores.id"), nullable=False),
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sa.Column("external_id", sa.String(50), nullable=False),
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sa.Column("ean", sa.String(20)),
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sa.Column("name", sa.String(255), nullable=False),
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sa.Column("brand", sa.String(100)),
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sa.Column("category", sa.String(100)),
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sa.Column("unit_size", sa.String(50)),
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sa.Column("url", sa.String(500)),
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sa.Column("created_at", sa.DateTime(), server_default=sa.func.now()),
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sa.Column("updated_at", sa.DateTime(), server_default=sa.func.now()),
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sa.UniqueConstraint("store_id", "external_id", name="uq_products_store_external"),
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)
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op.create_index("ix_products_ean", "products", ["ean"])
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op.create_table(
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"scrape_runs",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("store_id", sa.Integer(), sa.ForeignKey("stores.id"), nullable=False),
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sa.Column("query", sa.String(255), nullable=False),
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sa.Column("started_at", sa.DateTime(), server_default=sa.func.now()),
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sa.Column("finished_at", sa.DateTime()),
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sa.Column("status", sa.String(20), server_default="running"),
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sa.Column("products_found", sa.Integer(), server_default="0"),
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sa.Column("error_message", sa.String(1000)),
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)
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op.create_table(
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"price_snapshots",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("product_id", sa.Integer(), sa.ForeignKey("products.id"), nullable=False),
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sa.Column("scrape_run_id", sa.Integer(), sa.ForeignKey("scrape_runs.id"), nullable=False),
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sa.Column("price", sa.Integer(), nullable=False),
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sa.Column("unit_price", sa.Integer()),
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sa.Column("unit_description", sa.String(50)),
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sa.Column("currency", sa.String(3), server_default="EUR"),
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sa.Column("discount_label", sa.String(100)),
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sa.Column("discount_description", sa.String(255)),
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sa.Column("was_price", sa.Integer()),
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sa.Column("is_on_sale", sa.Boolean(), server_default="false"),
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sa.Column("timestamp", sa.DateTime(), server_default=sa.func.now()),
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)
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op.create_index("ix_price_snapshots_timestamp", "price_snapshots", ["timestamp"])
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op.create_index(
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"ix_price_snapshots_product_timestamp",
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"price_snapshots",
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["product_id", "timestamp"],
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)
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def downgrade() -> None:
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op.drop_table("price_snapshots")
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op.drop_table("scrape_runs")
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op.drop_table("products")
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op.drop_table("stores")
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