1. PostgreSQL copy of all MySQL created and tested.\n 2. Purchase Orders and Sales Orders and stock level management added to MySQL, PostgreSQL, and server and front end code.

static/PostgreSQL/304_tri_Shop_General.sql

@@ -0,0 +1,47 @@
+
+-- Shop General
+
+CREATE OR REPLACE FUNCTION before_insert_Shop_General()
+RETURNS TRIGGER AS $$
+BEGIN
+	NEW.created_on = CURRENT_TIMESTAMP;
+    NEW.created_by = CURRENT_USER;
+
+	RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE OR REPLACE TRIGGER tri_before_insert_Shop_General
+BEFORE INSERT ON Shop_General
+FOR EACH ROW
+EXECUTE FUNCTION before_insert_Shop_General();
+
+
+CREATE OR REPLACE FUNCTION before_update_Shop_General()
+RETURNS TRIGGER AS $$
+BEGIN
+	IF OLD.id_change_set IS NOT DISTINCT FROM NEW.id_change_set THEN
+		RAISE EXCEPTION 'New change Set ID must be provided.'
+			USING ERRCODE = '45000';
+    END IF;
+    
+    INSERT INTO Shop_General_Audit (
+		id_general,
+        name_field,
+        value_prev,
+        value_new,
+        id_change_set
+    )
+    -- Changed quantity max
+	SELECT NEW.id_general, 'quantity_max', CONVERT(OLD.quantity_max, CHAR), CONVERT(NEW.quantity_max, CHAR), NEW.id_change_set
+		WHERE NOT OLD.quantity_max <=> NEW.quantity_max
+	;
+
+	RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE OR REPLACE TRIGGER tri_before_update_Shop_General
+BEFORE UPDATE ON Shop_General
+FOR EACH ROW
+EXECUTE FUNCTION before_update_Shop_General();