/// <summary>
/// When deleteing a menu category set it's is_deleted to true,as well as cascade to menu items.
/// only allow this if the menu category is not active
/// </summary>
/// <param name="menu_cat">menu category to delete</param>
/// <returns>number of rows affected</returns>
/// <exception cref="ItemActiveException">Item is currently set to active</exception>
/// <exception cref="InvalidOperationException"></exception>
public override int delete(int id)
{
menu_category menu_cat = db.menu_category.Find(id);
int result = 0;
MenuItemOM om = new MenuItemOM(db);
if (!menu_cat.is_active)
{
menu_cat.is_deleted = true;
IList<menu_item> menu_item_list = menu_cat.menu_item.ToList();
for (int i = 0; i < menu_item_list.Count; i++)
{
menu_item mi = menu_item_list.ElementAt(i);
mi.is_active = false;
om.delete(mi.id);
}
db.Entry(menu_cat).State = EntityState.Modified;
result = db.SaveChanges();
//Calling edit will update the version
edit(menu_cat);
}
else
{
throw new ItemActiveException("This category is currently active! Cannot delete it.");
}
return result;
}
public void DeleteItemActiveExceptionTest()
{
//Arrange
db = new touch_for_foodEntities();
MenuItemOM target = new MenuItemOM(db);
menuItem1.is_active = true;
db.Entry(menuItem1).State = EntityState.Modified;
db.SaveChanges();
//Act
int actual = target.delete(menuItem1.id);
//Assert
db = new touch_for_foodEntities();
Assert.IsFalse(db.menu_item.Find(menuItem1.id).is_deleted);
Assert.IsNotNull(db.order_item.Find(orderItem1.id));
}
public int RemoveMenuItem(int id)
{
int result = 0;
MenuItemOM om = new MenuItemOM(db);
try
{
result = om.delete(id);
}
catch (Exceptions.ItemActiveException e)
{
ViewBag.error = e.Message;
}
return result;
}
public void DeleteTest()
{
//Arrange
db = new touch_for_foodEntities();
MenuItemOM target = new MenuItemOM(db);
int expected = 1;
int version = menuItem1.version;
//Check-Setup
Assert.IsFalse(db.menu_item.Find(menuItem1.id).is_deleted);
Assert.IsNotNull(db.order_item.Find(orderItem1.id));
//Act
int actual = target.delete(menuItem1.id);
//Assert
db = new touch_for_foodEntities();
menu_item mi = db.menu_item.Find(menuItem1.id);
Assert.IsTrue(mi.is_deleted);
Assert.AreEqual(mi.version, ++version);
Assert.AreEqual(expected, actual);
}
