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/MySQL/304_tri_Shop_General.sql

@@ -0,0 +1,41 @@
+
+# Shop General
+
+USE PARTSLTD_PROD;
+
+DROP TRIGGER IF EXISTS before_insert_Shop_General;
+DROP TRIGGER IF EXISTS before_update_Shop_General;
+
+DELIMITER //
+CREATE TRIGGER before_insert_Shop_General
+BEFORE INSERT ON Shop_General
+FOR EACH ROW
+BEGIN
+	SET NEW.created_on = NOW();
+    SET NEW.created_by = CURRENT_USER();
+END //
+DELIMITER ;
+
+DELIMITER //
+CREATE TRIGGER before_update_Shop_General
+BEFORE UPDATE ON Shop_General
+FOR EACH ROW
+BEGIN
+	IF OLD.id_change_set <=> NEW.id_change_set THEN
+		SIGNAL SQLSTATE '45000'
+        SET MESSAGE_TEXT = 'New change Set ID must be provided.';
+    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
+	;
+END //
+DELIMITER ;