public ActionResult Edit(int?id, CustomerEditContactInfo newItem)
{
// Validate the input
if (!ModelState.IsValid)
{
// Our "version 1" approach is to display the "edit form" again
return(RedirectToAction("edit", new { id = newItem.CustomerId }));
}
if (id.GetValueOrDefault() != newItem.CustomerId)
{
// This appears to be data tampering, so redirect the user away
return(RedirectToAction("index"));
}
// Attempt to do the update
var editedItem = m.CustomerEditContactInfo(newItem);
if (editedItem == null)
{
// There was a problem updating the object
// Our "version 1" approach is to display the "edit form" again
return(RedirectToAction("edit", new { id = newItem.CustomerId }));
}
else
{
// Show the details view, which will have the updated data
return(RedirectToAction("details", new { id = newItem.CustomerId }));
}
}
// GET: Customers
public ActionResult Index()
{
// Attention - Error - object reference not set to an instance of an object
// Just as it says... an object is null, and you're trying to use it
// Set a breakpoint on line 24 above, then "step over" to get to the error
// Inspect the variable values as you step through the lines of code
// Create a new CustomerEditContactInfo object
// Intentionally leave out some property values
var newCust = new CustomerEditContactInfo
{
//Fax = "(416) 661-4034",
//Email = "*****@*****.**",
CustomerId = 2,
Phone = "(416) 491-5050"
};
// Now, attempt to use some values that are not set
var email = newCust.Email;
var emailLength = email.Length;
// Fetch the collection
var c = m.CustomerGetAll();
// Pass the collection to the view
return(View(c));
}
// GET: Customers
public ActionResult Index()
{
// Attention - Error - object reference not set to an instance of an object
// Just as it says... an object is null, and you're trying to use it
// Set a breakpoint on line 24 above, then "step over" to get to the error
// Inspect the variable values as you step through the lines of code
// Create a new CustomerEditContactInfo object
// Intentionally leave out some property values
var newCust = new CustomerEditContactInfo
{
//Fax = "(416) 661-4034",
//Email = "*****@*****.**",
CustomerId = 2,
Phone = "(416) 491-5050"
};
// Now, attempt to use some values that are not set
var email = newCust.Email;
var emailLength = email.Length;
// Fetch the collection
var c = m.CustomerGetAll();
// Pass the collection to the view
return View(c);
}
// ProductEdit()
public CustomerBase CustomerEditContactInfo(CustomerEditContactInfo newItem)
{
var o = ds.Customers.Find(newItem.CustomerId);
if (o == null)
{
return(null);
}
else
{
ds.Entry(o).CurrentValues.SetValues(newItem);
ds.SaveChanges();
return(mapper.Map <Customer, CustomerBase>(o));
}
}
public ActionResult Edit(int?id, CustomerEditContactInfo newItem)
{
// Validate the input
if (!ModelState.IsValid)
{
// Our "version 1" approach is to display the "edit form" again
return(RedirectToAction("edit", new { id = newItem.CustomerId }));
}
if (id.GetValueOrDefault() != newItem.CustomerId)
{
// This appears to be data tampering, so redirect the user away
return(RedirectToAction("index"));
}
// Attention 03 (web app) - Error - cause a validation error when saving to the store
// At this point in the method, newItem has passed the initial validation test
// Set a breakpoint at line 139 below
// So, let's invalidate some of its values (null or string too long),
// and pass it to the manager, which will attempt to save it to the data store
// Then, BOOM!, a DbEntity validation error will appear
// Set a required value to null
newItem.Email = null;
// Set another to a too-long value
newItem.Phone = "This string is too long. It exceeds the 24-character limit.";
// Attempt to do the update
var editedItem = m.CustomerEditContactInfo(newItem);
if (editedItem == null)
{
// There was a problem updating the object
// Our "version 1" approach is to display the "edit form" again
return(RedirectToAction("edit", new { id = newItem.CustomerId }));
}
else
{
// Show the details view, which will have the updated data
return(RedirectToAction("details", new { id = newItem.CustomerId }));
}
}
public CustomerBase CustomerEditContactInfo(CustomerEditContactInfo newItem)
{
// Attempt to fetch the object
var o = ds.Customers.Find(newItem.CustomerId);
if (o == null)
{
// Problem - item was not found, so return
return(null);
}
else
{
// Update the object with the incoming values
ds.Entry(o).CurrentValues.SetValues(newItem);
ds.SaveChanges();
// Prepare and return the object
return(mapper.Map <CustomerBase>(o));
}
}
public CustomerBase CustomerEditContactInfo(CustomerEditContactInfo newItem)
{
// Attempt to fetch the object
var o = ds.Customers.Find(newItem.CustomerId);
if (o == null)
{
// Problem - item was not found, so return
return null;
}
else
{
// Update the object with the incoming values
ds.Entry(o).CurrentValues.SetValues(newItem);
ds.SaveChanges();
// Prepare and return the object
return Mapper.Map<CustomerBase>(o);
}
}
public ActionResult Edit(int?id, CustomerEditContactInfo newItem)
{
if (!ModelState.IsValid)
{
return(RedirectToAction("edit", new { id = newItem.CustomerId }));
}
if (id.GetValueOrDefault() != newItem.CustomerId)
{
return(RedirectToAction("index"));
}
var editedItem = m.CustomerEditContactInfo(newItem);
if (editedItem == null)
{
return(RedirectToAction("edit", new { id = newItem.CustomerId }));
}
else
{
return(RedirectToAction("details", new { id = newItem.CustomerId }));
}
}
public ActionResult Edit(int? id, CustomerEditContactInfo newItem)
{
// Validate the input
if (!ModelState.IsValid)
{
// Our "version 1" approach is to display the "edit form" again
return RedirectToAction("edit", new { id = newItem.CustomerId });
}
if (id.GetValueOrDefault() != newItem.CustomerId)
{
// This appears to be data tampering, so redirect the user away
return RedirectToAction("index");
}
// Attention - Error - cause a validation error when saving to the store
// At this point in the method, newItem has passed the initial validation test
// Set a breakpoint at line 139 below
// So, let's invalidate some of its values (null or string too long),
// and pass it to the manager, which will attempt to save it to the data store
// Then, BOOM!, a DbEntity validation error will appear
// Set a required value to null
newItem.Email = null;
// Set another to a too-long value
newItem.Phone = "This string is too long. It exceeds the 24-character limit.";
// Attempt to do the update
var editedItem = m.CustomerEditContactInfo(newItem);
if (editedItem == null)
{
// There was a problem updating the object
// Our "version 1" approach is to display the "edit form" again
return RedirectToAction("edit", new { id = newItem.CustomerId });
}
else
{
// Show the details view, which will have the updated data
return RedirectToAction("details", new { id = newItem.CustomerId });
}
}
public ActionResult Edit(int? id, CustomerEditContactInfo newItem)
{
// Validate the input
if (!ModelState.IsValid)
{
// Our "version 1" approach is to display the "edit form" again
return RedirectToAction("edit", new { id = newItem.CustomerId });
}
if (id.GetValueOrDefault() != newItem.CustomerId)
{
// This appears to be data tampering, so redirect the user away
return RedirectToAction("index");
}
// Attempt to do the update
var editedItem = m.CustomerEditContactInfo(newItem);
if (editedItem == null)
{
// There was a problem updating the object
// Our "version 1" approach is to display the "edit form" again
return RedirectToAction("edit", new { id = newItem.CustomerId });
}
else
{
// Show the details view, which will have the updated data
return RedirectToAction("details", new { id = newItem.CustomerId });
}
}
