Coupon Carl
27fe957074
Consolidate API gateway service into monorepo. Squashed from https://github.com/cartsnitch/api main (89bacb1). Co-Authored-By: Paperclip <noreply@paperclip.ing>
24 lines
810 B
Python
24 lines
810 B
Python
"""Shared query helpers for service layer."""
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from uuid import UUID
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from sqlalchemy import func, select
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def latest_price_per_store(product_ids: list[UUID] | None = None):
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"""Subquery returning the latest observed_date per product+store.
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Optionally filtered to a list of product IDs. Returns a subquery with
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columns: normalized_product_id, store_id, max_date.
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"""
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from cartsnitch_api.models import PriceHistory
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query = select(
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PriceHistory.normalized_product_id,
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PriceHistory.store_id,
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func.max(PriceHistory.observed_date).label("max_date"),
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).group_by(PriceHistory.normalized_product_id, PriceHistory.store_id)
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if product_ids is not None:
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query = query.where(PriceHistory.normalized_product_id.in_(product_ids))
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return query.subquery()
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