public void UpdateSpecialEvent(SpecialEvent Entities)
{
using(RestaurantContext specialEventDBContext = new RestaurantContext())
{ var updating = specialEventDBContext.SpecialEvents.Attach(Entities);
var matchingWithExistingValues = specialEventDBContext.Entry<SpecialEvent>(updating);
matchingWithExistingValues.State = System.Data.Entity.EntityState.Modified;
specialEventDBContext.SaveChanges();
}
}
public void UpdateSpecialEvent(SpecialEvent item)
{
using ( RestaurantContext context = new RestaurantContext())
{
//First attach the item to the dbContext collection
var attached = context.SpecialEvents.Attach(item);
//Second,get the entry for existing data that should match for
//this specific special event
var existing = context.Entry<SpecialEvent>(attached);
//Third,mark that the object's values have changed
existing.State = System.Data.Entity.EntityState.Modified;
//Lastly,save the changes in the database
context.SaveChanges();
}
}
public void DeactivateSpecialEvent(SpecialEvent item)
{
using (var context = new RestaurantContext())
{
// First, get a reference to the actual item in the Db
// Find() is a method to look up an item by it's primary key.
var existing = context.SpecialEvents.Find(item.EventCode);
// Second, remove the item from the database context
existing.Active = false; // Modifies the property on the SpecialEvent
var updatable = context.Entry(existing); // Get a reference to the special event as an Entity in the database context
// Specify a particular property as being changed.
updatable.Property(x => x.Active).IsModified = true;
// Lastly, save the changes to the database
context.SaveChanges();
}
}
public void UpdateSpecialEvent(SpecialEvent item)
{
using (RestaurantContext context = new RestaurantContext())
{
//First attach the item to the dbContext collection
var attached = context.SpecialEvents.Attach(item);
// var matchingWithExistingValues = context.Entry<SpecialEvent>(attached);
//matchingWithExistingValues.State = System.Data.Entity.EntityState.Modified;
//context.SaveChanges();
var existing = context.Entry<SpecialEvent>(attached);
existing.State = System.Data.Entity.EntityState.Modified;
context.SaveChanges();
}
//First attacj the item to the dbContext collection
}
public void SeatCustomer(DateTime when, int reservationId, List<byte> tables, int waiterId)
{
var availableSeats = AvailableSeatingByDateTime(when.Date, when.TimeOfDay);
using (var context = new RestaurantContext())
{
List<string> errors = new List<string>();
// Rule checking:
// - Reservation must be in Booked status
// - Table must be available - typically a direct check on the table, but proxied based on the mocked time here
// - Table must be big enough for the # of customers
var reservation = context.Reservations.Find(reservationId);
if (reservation == null)
errors.Add("The specified reservation does not exist");
else if (reservation.ReservationStatus != Reservation.Booked)
errors.Add("The reservation's status is not valid for seating. Only booked reservations can be seated.");
var capacity = 0;
foreach (var tableNumber in tables)
{
if (!availableSeats.Exists(x => x.Table == tableNumber))
errors.Add("Table " + tableNumber + " is currently not available");
else
capacity += availableSeats.Single(x => x.Table == tableNumber).Seating;
}
if (capacity < reservation.NumberInParty)
errors.Add("Insufficient seating capacity for number of customers. Alternate tables must be used.");
if (errors.Count > 0)
throw new Exception("Unable to seat customer");
// 1) Create a blank bill with assigned waiter
Bill seatedCustomer = new Bill()
{
BillDate = when,
NumberInParty = reservation.NumberInParty,
WaiterID = waiterId,
ReservationID = reservation.ReservationID
};
context.Bills.Add(seatedCustomer);
// 2) Add the tables for the reservation and change the reservation's status to arrived
foreach (var tableNumber in tables)
reservation.Tables.Add(context.Tables.Single(x => x.TableNumber == tableNumber));
reservation.ReservationStatus = Reservation.Arrived;
var updatable = context.Entry(context.Reservations.Attach(reservation));
updatable.Property(x => x.ReservationStatus).IsModified = true;
//updatable.Reference(x=>x.Tables).
// 3) Save changes
context.SaveChanges();
}
//string message = String.Format("Not yet implemented. Need to seat reservation {0} for waiter {1} at tables {2}", reservationId, waiterId, string.Join(", ", tables));
//throw new NotImplementedException(message);
}
