public CustomerBase CustomerAdd(CustomerAdd newItem)
{
// Attempt to add the object
var addedItem = ds.Customers.Add(Mapper.Map <Customer>(newItem));
ds.SaveChanges();
// Return the result, or null if there was an error
return(CustomerGetById(addedItem.CustomerId));
}
// Attention 26 - Customer add new, returns extra data
// Must do a bit more than a normal "add new", because of the association
// First, check whether an identifier (for Employee) was provided
// It may or may not be there - it's optional
// If present, validate, and if valid, must do one extra fetch before return
// so that the associated data comes back; if invalid, set it to null
// Please be aware that there could be alternative coding plans -
// the following plan is not authoritative, and others could work
public CustomerWithData CustomerAdd(CustomerAdd newItem)
{
// Employee object (support rep)
Employee associatedItem = null;
// Is there a SupportRepId value?
if (newItem.SupportRepId != null)
{
// Attempt to get the associated item
associatedItem = ds.Employees.Find(newItem.SupportRepId.GetValueOrDefault());
// If the attempt fails, must remove the invalid support rep identifier
if (associatedItem == null)
{
newItem.SupportRepId = null;
}
}
// Attempt to add the object
var addedItem = ds.Customers.Add(Mapper.Map <Customer>(newItem));
ds.SaveChanges();
if (addedItem == null)
{
return(null);
}
else
{
// If associated item is null, just return the added item
// Else, do the extra fetch
if (associatedItem == null)
{
return(Mapper.Map <CustomerWithData>(addedItem));
}
else
{
// Set the association
addedItem.Employee = associatedItem;
ds.SaveChanges();
// Fetch the just-added object, with extra data
var o = ds.Customers.Include("Employee")
.SingleOrDefault(c => c.CustomerId == addedItem.CustomerId);
// Return the result
return(Mapper.Map <CustomerWithData>(o));
}
}
}
/// <summary>
/// Add new customer info
/// </summary>
/// <param name="newItem">Json structured customer information see tempate for details</param>
/// <returns>Newly created custoemr information</returns>
// POST: api/Customers
public IHttpActionResult Post([FromBody] CustomerAdd newItem)
{
// Ensure that the URI is clean (and does not have an id parameter)
if (Request.GetRouteData().Values["id"] != null)
{
return(BadRequest("Invalid request URI"));
}
// Ensure that a "newItem" is in the entity body
if (newItem == null)
{
return(BadRequest("Must send an entity body with the request"));
}
// Ensure that we can use the incoming data
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
// Attempt to add the new object
var addedItem = m.CustomerAdd(newItem);
// Continue?
if (addedItem == null)
{
return(BadRequest("Cannot add the object"));
}
// HTTP 201 with the new object in the entity body
// Notice how to create the URI for the Location header
var uri = Url.Link("DefaultApi", new { id = addedItem.CustomerId });
// Create a hypermedia representation
// ****** Error during automapping *******
//CustomerLinked result = new CustomerLinked(Mapper.Map<CustomerWithLink>(addedItem));
//return Created(uri, result);
// ******** error end ************
return(Created(uri, addedItem));
}
