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author | Sebastian Reichel <sre@ring0.de> | 2018-06-29 21:29:16 +0200 |
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committer | Sebastian Reichel <sre@ring0.de> | 2018-07-15 22:59:57 +0200 |
commit | 98dda4beafd082b96c6dc8b3f44e1589a39069c1 (patch) | |
tree | 035c5d79acdddddce6b34dc1a048beef040b8c4f /data/sql/trigger.sql | |
parent | cce1953eb1f8fe8c927a1720c95caed45b71ef1d (diff) | |
download | serial-barcode-scanner-98dda4beafd082b96c6dc8b3f44e1589a39069c1.tar.bz2 |
sql update
Diffstat (limited to 'data/sql/trigger.sql')
-rw-r--r-- | data/sql/trigger.sql | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/data/sql/trigger.sql b/data/sql/trigger.sql new file mode 100644 index 0000000..d26a39d --- /dev/null +++ b/data/sql/trigger.sql @@ -0,0 +1,27 @@ +BEGIN TRANSACTION; +CREATE TRIGGER IF NOT EXISTS update_product_amount_on_restock_insert AFTER INSERT ON restock BEGIN + UPDATE products SET amount = products.amount + NEW.amount WHERE products.id = NEW.product; +END; + +CREATE TRIGGER IF NOT EXISTS update_product_amount_on_restock_delete AFTER DELETE ON restock BEGIN + UPDATE products SET amount = products.amount - OLD.amount WHERE products.id = OLD.product; +END; + +CREATE TRIGGER IF NOT EXISTS update_product_amount_on_restock_update AFTER UPDATE ON restock BEGIN + UPDATE products SET amount = products.amount - OLD.amount WHERE products.id = OLD.product; + UPDATE products SET amount = products.amount + NEW.amount WHERE products.id = NEW.product; +END; + +CREATE TRIGGER IF NOT EXISTS update_product_amount_on_sales_insert AFTER INSERT ON sales BEGIN + UPDATE products SET amount = products.amount - 1 WHERE products.id = NEW.product; +END; + +CREATE TRIGGER IF NOT EXISTS update_product_amount_on_sales_delete AFTER DELETE ON sales BEGIN + UPDATE products SET amount = products.amount + 1 WHERE products.id = OLD.product; +END; + +CREATE TRIGGER IF NOT EXISTS update_product_amount_on_sales_update AFTER UPDATE ON sales BEGIN + UPDATE products SET amount = products.amount + 1 WHERE products.id = OLD.product; + UPDATE products SET amount = products.amount - 1 WHERE products.id = NEW.product; +END; +COMMIT; |