public Order GetOrder(String Id)
{
using (var db = new OrderDB()) {
return(db.Order.Include("Details").
SingleOrDefault(o => o.Id == Id));
}
}
public List <Order> QueryByCustormer(String custormer)
{
using (var db = new OrderDB()) {
return(db.Order.Include("Details")
.Where(o => o.Customer.Equals(custormer)).ToList <Order> ());
}
}
public void Add(Order order)
{
using (var db = new OrderDB()) {
db.Entry(order).State = EntityState.Added;
db.SaveChanges();
}
}
public List <Order> QueryByGoods(String product)
{
using (var db = new OrderDB()) {
var query = db.Order.Include("Details")
.Where(o => o.Details.Where(
item => item.Product.Equals(product)).Count() > 0);
return(query.ToList <Order> ());
}
}
public void Delete(String orderId)
{
using (var db = new OrderDB()) {
var order = db.Order.Include("Details").SingleOrDefault(o => o.Id == orderId);
db.OrderItem.RemoveRange(order.Details);
db.Order.Remove(order);
db.SaveChanges();
}
}
public void Update(Order newOrder)
{
using (var db = new OrderDB()) {
Order oldOrder = db.Order.Include("Details").SingleOrDefault(o => o.Id == newOrder.Id);
db.OrderItem.RemoveRange(oldOrder.Details);
db.SaveChanges();
}
using (var db = new OrderDB()) {
foreach (OrderDetail detail in newOrder.Details)
{
db.Entry(detail).State = EntityState.Added;
}
//db.SaveChanges();//先保存items部分的修改
db.Entry(newOrder).State = EntityState.Modified;
db.SaveChanges(); //保存Order的属性修改
}
}
public void Update(Order order, List <OrderDetail> removed, List <OrderDetail> newItems)
{
using (var db = new OrderDB()) {
order.Details.AddRange(newItems);
foreach (OrderDetail item in order.Details)
{
if (removed.Contains(item))
{
db.Entry(item).State = EntityState.Deleted;
}
else if (newItems.Contains(item))
{
db.Entry(item).State = EntityState.Added;
}
else
{
db.Entry(item).State = EntityState.Modified;
}
}
db.SaveChanges(); //先保存items部分的修改
db.Entry(order).State = EntityState.Modified;
db.SaveChanges(); //保存Order的属性修改
}
}
public List <Order> GetAllOrders()
{
using (var db = new OrderDB()) {
return(db.Order.Include("Details").ToList <Order> ());
}
}