private static void showPage(String custId, String errMsg) {
// Obviously this is inefficient -- the list of customer and products never changes,
// so we could cache it.
List<Customer> customers = Customer.find("order by name").fetch();
List<Product> products = Product.find("order by name").fetch();
Customer currentCustomer;
if (custId == null || custId.trim().length() == 0) currentCustomer = customers.get(0);
else currentCustomer = Customer.findById(new Long(custId));
renderTemplate("Application/index.html", customers, currentCustomer, products, errMsg);
}
private static void processUpdate(String type, String id, String att, String value) {
if (type == null || type.trim().length() == 0) return;
if ("Order".equals(type)) {
PurchaseOrder order = PurchaseOrder.findById(new Long(id));
if ("paid".equals(att)) {
Boolean oldValue = order.paid;
if (oldValue == null) oldValue = Boolean.FALSE;
order.paid = !oldValue;
if (oldValue) setCurrentUseCaseName("Order unpaid");
else setCurrentUseCaseName("Order paid");
} else if ("customer".equals(att)) {
if (value == null
|| value.startsWith(
"- ")) // Do nothing if somehow the "- select a customer -" item was selected
return;
Customer customer = Customer.findById(new Long(value));
order.customer = customer;
Flash.current().success("The order has been reassigned to customer " + customer.name);
setCurrentUseCaseName("Order reassigned");
} else if ("notes".equals(att)) {
order.notes = value;
setCurrentUseCaseName("Order notes updated");
}
order.save();
} else if ("Customer".equals(type)) {
Customer customer = Customer.findById(new Long(id));
if ("creditLimit".equals(att)) {
BigDecimal val = NumberFormat.parseMoney(value);
customer.creditLimit = val;
setCurrentUseCaseName("Customer credit limit updated");
}
customer.save();
} else if ("LineItem".equals(type)) {
LineItem lineitem = LineItem.findById(new Long(id));
if ("quantity".equals(att)) {
Integer val = NumberFormat.parseNumber(value);
lineitem.qtyOrdered = val;
setCurrentUseCaseName("Line Item quantity updated");
} else if ("unitPrice".equals(att)) {
BigDecimal val = NumberFormat.parseMoney(value);
lineitem.productPrice = val;
setCurrentUseCaseName("Line Item unit price updated");
} else if ("product".equals(att)) {
Product product = Product.findById(new Long(value));
lineitem.product = product;
setCurrentUseCaseName("Line Item product changed");
}
lineitem.save();
}
}
private static void processInsert(
String custId, String type, String id, String att, String value) {
if (type == null || type.trim().length() == 0) return;
if ("LineItem".equals(type)) {
PurchaseOrder order = PurchaseOrder.findById(new Long(id));
Product product = Product.findById(new Long(1));
LineItem newItem = new LineItem();
newItem.purchaseOrder = order;
order.lineItems.add(newItem);
newItem.product = product;
product.lineItems.add(newItem);
newItem.qtyOrdered = 1;
setCurrentUseCaseName("New Line Item created");
newItem.save();
} else if ("Order".equals(type)) {
Customer customer = Customer.findById(new Long(custId));
PurchaseOrder newOrder = new PurchaseOrder();
newOrder.customer = customer;
newOrder.paid = Boolean.FALSE;
newOrder.notes = "";
setCurrentUseCaseName("New Order created");
newOrder.save();
}
}