public IActionResult Edit([Bind("BeekeeperID,FirstName,LastName,Address,City,State,Zipcode,Phone,Email")] Beekeeper beekeeper)
{
if (ModelState.IsValid)
{
_context.Entry(beekeeper).State = EntityState.Modified;
_context.SaveChanges();
return(RedirectToAction("Beekeepers"));
}
return(View(beekeeper));
}
public IActionResult Edit([Bind("BeekeeperIDFK,HiveName,InstallDate,Notes,HoneyProduction")] Beehive beehive)
{
if (ModelState.IsValid)
{
_context.Entry(beehive).State = EntityState.Modified;
_context.SaveChanges();
try
{
// Attempt to save changes to the database
_context.SaveChanges();
}
catch (DbUpdateConcurrencyException ex)
{
foreach (var entry in ex.Entries)
{
if (entry.Entity is Beehive)
{
// Using a NoTracking query means we get the entity but it is not tracked by the context
// and will not be merged with existing entities in the context.
var databaseEntity = _context.Beehives.AsNoTracking().Single(p => p.BeehiveID == ((Beehive)entry.Entity).BeehiveID);
var databaseEntry = _context.Entry(databaseEntity);
foreach (var property in entry.Metadata.GetProperties())
{
var proposedValue = entry.Property(property.Name).CurrentValue;
var originalValue = entry.Property(property.Name).OriginalValue;
var databaseValue = databaseEntry.Property(property.Name).CurrentValue;
// TODO: Logic to decide which value should be written to database
// entry.Property(property.Name).CurrentValue = <value to be saved>;
// Update original values to
entry.Property(property.Name).OriginalValue = databaseEntry.Property(property.Name).CurrentValue;
}
}
else
{
throw new NotSupportedException("Don't know how to handle concurrency conflicts for " + entry.Metadata.Name);
}
}
// Retry the save operation
_context.SaveChanges();
}
return(RedirectToAction("Beehives", routeValues: new
{
id = beehive.BeekeeperIDFK
}));
}
return(View(beehive));
}