170 lines
5.2 KiB
Python
170 lines
5.2 KiB
Python
from __future__ import annotations
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from collections.abc import Sequence
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from .specs import BRAND_SYNC_TARGETS
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DEFAULT_SYNC_TARGET = BRAND_SYNC_TARGETS[0]
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def _quote_sql_literal(value: str) -> str:
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return "'" + value.replace("'", "''") + "'"
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def _format_warehouse_keys(warehouse_keys: Sequence[int | str]) -> str:
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cleaned_keys = tuple(int(key) for key in warehouse_keys)
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if not cleaned_keys:
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raise ValueError("warehouse_keys 不能为空")
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return ", ".join(str(key) for key in cleaned_keys)
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def build_postgres_query(
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brand_name: str = DEFAULT_SYNC_TARGET.brand_name,
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warehouse_keys: Sequence[int | str] = DEFAULT_SYNC_TARGET.warehouse_keys,
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) -> str:
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brand_filter = _quote_sql_literal(brand_name)
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warehouse_key_filter = _format_warehouse_keys(warehouse_keys)
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return f"""
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WITH inventory_latest AS (
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SELECT
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t."统一规格编码",
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t."仓库主键",
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t."物理总库存"
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FROM (
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SELECT
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f."统一规格编码",
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f."仓库主键",
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f."快照时间",
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f."物理总库存",
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ROW_NUMBER() OVER (
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PARTITION BY f."统一规格编码", f."仓库主键"
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ORDER BY f."快照时间" DESC
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) AS rn
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FROM analytics_layer.fact_inventory_snapshot f
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WHERE f."数据来源系统" = '旺店通'
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AND NULLIF(TRIM(f."统一规格编码"), '') IS NOT NULL
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) t
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WHERE t.rn = 1
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),
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inventory_summary AS (
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SELECT
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"统一规格编码",
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SUM("物理总库存") AS "总库存"
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FROM inventory_latest
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WHERE "仓库主键" IN ({warehouse_key_filter})
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GROUP BY "统一规格编码"
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),
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shop_stock_latest AS (
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SELECT
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t."统一规格编码",
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t."店铺主键",
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SUM(t."可发库存") AS "可发库存"
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FROM (
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SELECT
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f."统一规格编码",
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f."店铺主键",
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f."仓库主键",
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f."快照时间",
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f."可发库存",
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f."状态",
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ROW_NUMBER() OVER (
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PARTITION BY
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f."统一规格编码",
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f."店铺主键",
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f."仓库主键"
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ORDER BY f."快照时间" DESC
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) AS rn
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FROM analytics_layer.fact_shop_stock_snapshot f
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WHERE f."数据来源系统" = '旺店通店铺'
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AND NULLIF(TRIM(f."统一规格编码"), '') IS NOT NULL
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) t
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WHERE t.rn = 1
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AND t."状态" <> '已失效'
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GROUP BY
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t."统一规格编码",
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t."店铺主键"
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),
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sales_summary AS (
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SELECT
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fs."统一规格编码",
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fs."店铺主键",
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SUM(
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CASE
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WHEN fs."发货时间" >= date_trunc('month', now())
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AND fs."发货时间" < date_trunc('month', now()) + INTERVAL '1 month'
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THEN fs."销售数量"
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ELSE 0
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END
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) AS "本月销售数量",
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SUM(
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CASE
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WHEN fs."发货时间" >= date_trunc('month', now()) - INTERVAL '1 month'
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AND fs."发货时间" < date_trunc('month', now())
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THEN fs."销售数量"
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ELSE 0
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END
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) AS "上月销售数量",
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SUM(
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CASE
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WHEN fs."发货时间" >= date_trunc('month', now()) - INTERVAL '2 month'
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AND fs."发货时间" < date_trunc('month', now()) - INTERVAL '1 month'
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THEN fs."销售数量"
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ELSE 0
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END
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) AS "上上月销售数量"
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FROM analytics_layer.fact_sales fs
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WHERE NULLIF(TRIM(fs."统一规格编码"), '') IS NOT NULL
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AND fs."发货时间" >= date_trunc('month', now()) - INTERVAL '2 month'
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AND fs."发货时间" < date_trunc('month', now()) + INTERVAL '1 month'
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GROUP BY fs."统一规格编码", fs."店铺主键"
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),
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product_dim AS (
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SELECT DISTINCT ON ("统一规格编码")
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"统一规格编码",
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"品牌名称",
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"货品简称",
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"一级分类",
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"商品名称",
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"条形码",
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"零售价"
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FROM analytics_layer.dim_product
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WHERE NULLIF(TRIM("统一规格编码"), '') IS NOT NULL
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ORDER BY "统一规格编码"
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)
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SELECT
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sl."统一规格编码",
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pd."品牌名称",
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pd."货品简称",
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pd."一级分类",
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pd."商品名称",
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pd."条形码",
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pd."零售价",
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ds."店铺名称",
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COALESCE(sl."可发库存", 0) AS "店铺挂单量",
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COALESCE(inv."总库存", 0) AS "总库存",
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COALESCE(ss."本月销售数量", 0) AS "本月销售数量",
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COALESCE(ss."上月销售数量", 0) AS "上月销售数量",
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COALESCE(ss."上上月销售数量", 0) AS "上上月销售数量"
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FROM shop_stock_latest sl
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LEFT JOIN inventory_summary inv
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ON sl."统一规格编码" = inv."统一规格编码"
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LEFT JOIN analytics_layer.dim_shop ds
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ON sl."店铺主键" = ds."店铺主键"
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LEFT JOIN sales_summary ss
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ON sl."统一规格编码" = ss."统一规格编码"
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AND sl."店铺主键" = ss."店铺主键"
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LEFT JOIN product_dim pd
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ON sl."统一规格编码" = pd."统一规格编码"
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WHERE pd."品牌名称" = {brand_filter}
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ORDER BY sl."统一规格编码", sl."店铺主键"
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"""
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POSTGRES_QUERY = build_postgres_query()
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