From 00ac935367e6940bc9d81b26341b5bfd4f084105 Mon Sep 17 00:00:00 2001 From: Bernd Bestel Date: Sun, 17 Apr 2022 21:28:58 +0200 Subject: [PATCH] Enforce a conversion factor of 1 between QU stock/purchase when they are the same (references #1862) --- migrations/0189.sql | 116 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 migrations/0189.sql diff --git a/migrations/0189.sql b/migrations/0189.sql new file mode 100644 index 00000000..b795f25d --- /dev/null +++ b/migrations/0189.sql @@ -0,0 +1,116 @@ +DROP VIEW quantity_unit_conversions_resolved; +CREATE VIEW quantity_unit_conversions_resolved +AS + +SELECT * +FROM ( + +-- 1. Product "purchase to stock" conversion factor +SELECT + -1 AS id, -- Dummy, LessQL needs an id column + p.id AS product_id, + p.qu_id_purchase AS from_qu_id, + qu_from.name AS from_qu_name, + qu_from.name_plural AS from_qu_name_plural, + p.qu_id_stock AS to_qu_id, + qu_to.name AS to_qu_name, + qu_to.name_plural AS to_qu_name_plural, + CASE WHEN p.qu_id_stock = p.qu_id_purchase THEN 1.0 ELSE p.qu_factor_purchase_to_stock END AS factor, -- Enforce a factor of 1 when QU stock = QU purchase + '1 product purchase to stock factor' AS source +FROM products p +JOIN quantity_units qu_from + ON p.qu_id_purchase = qu_from.id +JOIN quantity_units qu_to + ON p.qu_id_stock = qu_to.id +UNION -- Inversed +SELECT + -1 AS id, -- Dummy, LessQL needs an id column + p.id AS product_id, + p.qu_id_stock AS from_qu_id, + qu_to.name AS from_qu_name, + qu_to.name_plural AS from_qu_name_plural, + p.qu_id_purchase AS to_qu_id, + qu_from.name AS to_qu_name, + qu_from.name_plural AS to_qu_name_plural, + 1 / p.qu_factor_purchase_to_stock AS factor, + '1 product purchase to stock factor (inversed)' AS source +FROM products p +JOIN quantity_units qu_from + ON p.qu_id_purchase = qu_from.id +JOIN quantity_units qu_to + ON p.qu_id_stock = qu_to.id +WHERE p.qu_id_stock != p.qu_id_purchase -- => Only when QU stock st not the same as QU purchase + +UNION + +-- 2. Product specific QU overrides +SELECT + -1 AS id, -- Dummy, LessQL needs an id column + p.id AS product_id, + quc.from_qu_id AS from_qu_id, + qu_from.name AS from_qu_name, + qu_from.name_plural AS from_qu_name_plural, + quc.to_qu_id AS to_qu_id, + qu_to.name AS to_qu_name, + qu_to.name_plural AS to_qu_name_plural, + quc.factor AS factor, + '2 product override' AS source +FROM products p +JOIN quantity_unit_conversions quc + ON p.id = quc.product_id +JOIN quantity_units qu_from + ON quc.from_qu_id = qu_from.id +JOIN quantity_units qu_to + ON quc.to_qu_id = qu_to.id + +UNION + +-- 3. Default (direct) QU conversion factors +SELECT + -1 AS id, -- Dummy, LessQL needs an id column + p.id AS product_id, + p.qu_id_stock AS from_qu_id, + qu_from.name AS from_qu_name, + qu_from.name_plural AS from_qu_name_plural, + quc.to_qu_id AS to_qu_id, + qu_to.name AS to_qu_name, + qu_to.name_plural AS to_qu_name_plural, + quc.factor AS factor, + '3 default direct factor' AS source +FROM products p +JOIN quantity_unit_conversions quc + ON p.qu_id_stock = quc.from_qu_id + AND quc.product_id IS NULL +JOIN quantity_units qu_from + ON quc.from_qu_id = qu_from.id +JOIN quantity_units qu_to + ON quc.to_qu_id = qu_to.id + +UNION + +-- 4. Default (indirect) QU conversion factors +SELECT + -1 AS id, -- Dummy, LessQL needs an id column + p.id AS product_id, + (SELECT from_qu_id FROM quantity_unit_conversions WHERE to_qu_id = quc.to_qu_id AND product_id = p.id) AS from_qu_id, + qu_from.name AS from_qu_name, + qu_from.name_plural AS from_qu_name_plural, + quc.from_qu_id AS to_qu_id, + qu_to.name AS to_qu_name, + qu_to.name_plural AS to_qu_name_plural, + (SELECT factor FROM quantity_unit_conversions WHERE to_qu_id = quc.to_qu_id AND product_id = p.id) / quc.factor AS factor, + '4 default indirect factor' AS source +FROM products p +JOIN product_qu_relations pqr + ON p.id = pqr.product_id +JOIN quantity_unit_conversions quc + ON pqr.qu_id = quc.from_qu_id + AND quc.product_id IS NULL +JOIN quantity_units qu_from + ON (SELECT from_qu_id FROM quantity_unit_conversions WHERE to_qu_id = quc.to_qu_id AND product_id = p.id) = qu_from.id +JOIN quantity_units qu_to + ON quc.from_qu_id = qu_to.id +WHERE NOT EXISTS(SELECT 1 FROM quantity_unit_conversions qucx WHERE qucx.product_id = p.id AND qucx.from_qu_id = pqr.qu_id) -- => Product override exists + +) x +ORDER BY source;