Implemented notes and Userfields for stock entries (closes #443)

migrations/0178.sql

@@ -0,0 +1,100 @@
+ALTER TABLE stock
+ADD note TEXT;
+
+ALTER TABLE stock_log
+ADD note TEXT;
+
+PRAGMA legacy_alter_table = ON;
+
+ALTER TABLE userfield_values RENAME TO userfield_values_old;
+
+CREATE TABLE userfield_values (
+	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+	field_id INTEGER NOT NULL,
+	object_id TEXT NOT NULL,
+	value TEXT NOT NULL,
+	row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime')),
+
+	UNIQUE(field_id, object_id)
+);
+
+INSERT INTO userfield_values
+	(id, field_id, object_id, value, row_created_timestamp)
+SELECT id, field_id, object_id, value, row_created_timestamp
+FROM userfield_values_old;
+
+DROP TABLE userfield_values_old;
+
+CREATE TRIGGER userfield_values_special_handling AFTER INSERT ON userfield_values
+BEGIN
+	-- Entity stock:
+	-- object_id is the transaction_id on insert -> replace it by the corresponding stock_id
+	INSERT OR REPLACE INTO userfield_values
+		(field_id, object_id, value)
+	SELECT uv.field_id, sl.stock_id, uv.value
+	FROM userfield_values uv
+	JOIN stock_log sl
+		ON uv.object_id = sl.transaction_id
+		AND sl.transaction_type IN ('purchase', 'inventory-correction')
+	WHERE uv.field_id IN (SELECT id FROM userfields WHERE entity = 'stock')
+		AND uv.field_id = NEW.field_id
+		AND uv.object_id = NEW.object_id;
+
+	DELETE FROM userfield_values
+	WHERE field_id IN (SELECT id FROM userfields WHERE entity = 'stock')
+		AND field_id = NEW.field_id
+		AND object_id = NEW.object_id;
+END;
+
+DROP VIEW stock_splits;
+CREATE VIEW stock_splits
+AS
+
+/*
+	Helper view which shows splitted stock rows which could be compacted
+	(a stock_id starting with "x" indicates that this entry shouldn't be compacted)
+*/
+
+SELECT
+	product_id,
+	SUM(amount) AS total_amount,
+	MIN(stock_id) AS stock_id_to_keep,
+	MAX(id) AS id_to_keep,
+	GROUP_CONCAT(id) AS id_group,
+	GROUP_CONCAT(stock_id) AS stock_id_group,
+	id -- Dummy
+FROM stock
+WHERE stock_id NOT LIKE 'x%'
+GROUP BY product_id, best_before_date, purchased_date, price, open, opened_date, location_id, shopping_location_id, IFNULL(note, '')
+HAVING COUNT(*) > 1;
+
+DROP VIEW uihelper_stock_journal;
+CREATE VIEW uihelper_stock_journal
+AS
+SELECT
+	sl.id,
+	sl.row_created_timestamp,
+	sl.correlation_id,
+	sl.undone,
+	sl.undone_timestamp,
+	sl.transaction_type,
+	sl.spoiled,
+	sl.amount,
+	sl.location_id,
+	l.name AS location_name,
+	p.name AS product_name,
+	qu.name AS qu_name,
+	qu.name_plural AS qu_name_plural,
+	u.display_name AS user_display_name,
+	p.id AS product_id,
+	sl.note,
+	sl.stock_id
+FROM stock_log sl
+LEFT JOIN users_dto u
+	ON sl.user_id = u.id
+JOIN products p
+	ON sl.product_id = p.id
+JOIN locations l
+	ON sl.location_id = l.id
+JOIN quantity_units qu
+	ON p.qu_id_stock = qu.id;