mirror of
https://github.com/grocy/grocy.git
synced 2025-04-29 09:39:57 +00:00
83 lines
2.3 KiB
SQL
83 lines
2.3 KiB
SQL
CREATE TABLE quantity_unit_conversions (
|
|
id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
|
|
from_qu_id INT NOT NULL,
|
|
to_qu_id INT NOT NULL,
|
|
factor REAL NOT NULL,
|
|
product_id INT,
|
|
row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
|
|
);
|
|
|
|
CREATE TRIGGER quantity_unit_conversions_custom_unique_constraint_INS BEFORE INSERT ON quantity_unit_conversions
|
|
BEGIN
|
|
-- Necessary because unique constraints don't include NULL values in SQLite, and also because the constraint should include the products default conversion factor
|
|
SELECT CASE WHEN((
|
|
SELECT 1
|
|
FROM quantity_unit_conversions
|
|
WHERE from_qu_id = NEW.from_qu_id
|
|
AND to_qu_id = NEW.to_qu_id
|
|
AND IFNULL(product_id, 0) = IFNULL(NEW.product_id, 0)
|
|
UNION
|
|
SELECT 1
|
|
FROM products
|
|
WHERE id = NEW.product_id
|
|
AND qu_id_purchase = NEW.from_qu_id
|
|
AND qu_id_stock = NEW.to_qu_id
|
|
)
|
|
NOTNULL) THEN RAISE(ABORT, "Unique constraint violation") END;
|
|
END;
|
|
|
|
CREATE TRIGGER quantity_unit_conversions_custom_unique_constraint_UPD BEFORE UPDATE ON quantity_unit_conversions
|
|
BEGIN
|
|
-- Necessary because unique constraints don't include NULL values in SQLite, and also because the constraint should include the products default conversion factor
|
|
SELECT CASE WHEN((
|
|
SELECT 1
|
|
FROM quantity_unit_conversions
|
|
WHERE from_qu_id = NEW.from_qu_id
|
|
AND to_qu_id = NEW.to_qu_id
|
|
AND IFNULL(product_id, 0) = IFNULL(NEW.product_id, 0)
|
|
UNION
|
|
SELECT 1
|
|
FROM products
|
|
WHERE id = NEW.product_id
|
|
AND qu_id_purchase = NEW.from_qu_id
|
|
AND qu_id_stock = NEW.to_qu_id
|
|
)
|
|
NOTNULL) THEN RAISE(ABORT, "Unique constraint violation") END;
|
|
END;
|
|
|
|
CREATE VIEW quantity_unit_conversions_resolved
|
|
AS
|
|
-- First: Product "purchase to stock" conversion factor
|
|
SELECT
|
|
p.id AS product_id,
|
|
p.qu_id_purchase AS from_qu_id,
|
|
p.qu_id_stock AS to_qu_id,
|
|
p.qu_factor_purchase_to_stock AS factor
|
|
FROM products p
|
|
|
|
UNION
|
|
|
|
-- Second: Product specific overrides
|
|
SELECT
|
|
p.id AS product_id,
|
|
p.qu_id_stock AS from_qu_id,
|
|
quc.to_qu_id AS to_qu_id,
|
|
quc.factor AS factor
|
|
FROM products p
|
|
JOIN quantity_unit_conversions quc
|
|
ON p.qu_id_stock = quc.from_qu_id
|
|
AND p.id = quc.product_id
|
|
|
|
UNION
|
|
|
|
-- Third: Default quantity unit conversion factors
|
|
SELECT
|
|
p.id AS product_id,
|
|
p.qu_id_stock AS from_qu_id,
|
|
quc.to_qu_id AS to_qu_id,
|
|
quc.factor AS factor
|
|
FROM products p
|
|
JOIN quantity_unit_conversions quc
|
|
ON p.qu_id_stock = quc.from_qu_id
|
|
AND quc.product_id IS NULL;
|