restructure code, switch from GTK to Web based UI

 - move barcode generation scripts into generation/
 - move code to src/
 - remove database analysis from invoice/graph
 - put database creation sql files into sql/
 - remove glade builder file
 - add new templates/ directory, which contains files
   used by the Web-UI

1 files changed, 27 insertions, 0 deletions

diff --git a/sql/trigger.sql b/sql/trigger.sql
new file mode 100644
index 0000000..8a9bede
--- /dev/null
+++ b/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_sells_insert AFTER INSERT ON sells BEGIN
+	UPDATE products SET amount = products.amount - 1 WHERE products.id = NEW.product;
+END;
+
+CREATE TRIGGER IF NOT EXISTS update_product_amount_on_sells_delete AFTER DELETE ON sells BEGIN
+	UPDATE products SET amount = products.amount + 1 WHERE products.id = OLD.product;
+END;
+
+CREATE TRIGGER IF NOT EXISTS update_product_amount_on_sells_update AFTER UPDATE ON sells 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;