iOS error unrecognized selector sent to instance 0x6ea9090 - core-data

Question

I used core data to set up all of my entities. But when I try to create a new customer entity and send it to the modal addCustomer view controller I keep getting this error.
* Terminating app due to uncaught exception
'NSInvalidArgumentException', reason: '-[UINavigationController
setCustomer:]: unrecognized selector sent to instance 0x8854700'
The error occurs in AccountListTableViewController.m when the program gets to addController.customer = newCustomer in the prepareForSegue.
Here is the code:
AccountListTableViewController.h
#import <UIKit/UIKit.h>
#import "CustomerAddViewController.h"
#class Customer;
#interface AccountListTableViewController : UITableViewController <CustomerAddDelegate, NSFetchedResultsControllerDelegate> {
#private
NSFetchedResultsController *fetchedResultsController;
NSManagedObjectContext *managedObjectContext;
}
#property (nonatomic, retain) NSFetchedResultsController *fetchedResultsController;
#property (nonatomic, retain) NSManagedObjectContext *managedObjectContext;
#end
AccountListTableViewController.m
#import "AccountListTableViewController.h"
#import "AccountListCell.h"
#import "Customer.h"
#import "AppDelegate.h"
#implementation AccountListTableViewController
#synthesize managedObjectContext, fetchedResultsController;
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if ([[segue identifier] isEqualToString:#"AddAccountSegue"] ) {
CustomerAddViewController *addController = [segue destinationViewController];
addController.delegate = self;
Customer *newCustomer = [NSEntityDescription insertNewObjectForEntityForName:#"Customer" inManagedObjectContext:self.managedObjectContext];
addController.customer = newCustomer;
}
}
-(void)customerAddViewController:(CustomerAddViewController *)customerAddViewController didAddCustomer:(Customer *)customer{
[self dismissModalViewControllerAnimated:YES];
}
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
//I added this to keep from crashing
if (managedObjectContext == nil)
{
managedObjectContext = [(AppDelegate *)[[UIApplication sharedApplication] delegate] managedObjectContext];
NSLog(#"After managedObjectContext: %#", managedObjectContext);
}
[super viewDidLoad];
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
//#warning Potentially incomplete method implementation.
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
//#warning Incomplete method implementation.
// Return the number of rows in the section.
id <NSFetchedResultsSectionInfo> sectionInfo = [[self.fetchedResultsController sections] objectAtIndex:section];
return [sectionInfo numberOfObjects];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//Customer *customer = [self.fetchedResultsController objectAtIndexPath:indexPath];
AccountListCell *cell = [tableView dequeueReusableCellWithIdentifier:#"AccountCellReuseIdentifier"];
Customer *aCustomer = (Customer *)[fetchedResultsController objectAtIndexPath:indexPath];
cell.customer = aCustomer;
// static NSString *CellIdentifier = #"Cell";
//
// UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// if (cell == nil) {
// cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
// }
// Configure the cell...
return cell;
}
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
*/
}
- (NSFetchedResultsController *)fetchedResultsController {
// Set up the fetched results controller if needed.
if (fetchedResultsController == nil) {
// Create the fetch request for the entity.
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
// Edit the entity name as appropriate.
NSEntityDescription *entity = [NSEntityDescription entityForName:#"Customer" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
// Edit the sort key as appropriate.
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:#"lastName" ascending:YES];
NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil];
[fetchRequest setSortDescriptors:sortDescriptors];
// Edit the section name key path and cache name if appropriate.
// nil for section name key path means "no sections".
NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:nil cacheName:#"Root"];
aFetchedResultsController.delegate = self;
self.fetchedResultsController = aFetchedResultsController;
// [aFetchedResultsController release];
// [fetchRequest release];
// [sortDescriptor release];
// [sortDescriptors release];
}
return fetchedResultsController;
}
/**
Delegate methods of NSFetchedResultsController to respond to additions, removals and so on.
*/
- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller {
// The fetch controller is about to start sending change notifications, so prepare the table view for updates.
[self.tableView beginUpdates];
}
- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath {
UITableView *tableView = self.tableView;
switch(type) {
case NSFetchedResultsChangeInsert:
[tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade];
break;
case NSFetchedResultsChangeDelete:
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
break;
// case NSFetchedResultsChangeUpdate:
// [self configureCell:(AccountListCell *)[tableView cellForRowAtIndexPath:indexPath] atIndexPath:indexPath];
// break;
case NSFetchedResultsChangeMove:
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
[tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade];
break;
}
}
- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type {
switch(type) {
case NSFetchedResultsChangeInsert:
[self.tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade];
break;
case NSFetchedResultsChangeDelete:
[self.tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade];
break;
}
}
- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller {
// The fetch controller has sent all current change notifications, so tell the table view to process all updates.
[self.tableView endUpdates];
}
#end
CustomerAddViewController.h
#import <UIKit/UIKit.h>
#import "Customer.h"
#class Customer;
#protocol CustomerAddDelegate;
#interface CustomerAddViewController : UITableViewController{
Customer *customer;
UITextField *firstName;
UITextField *lastName;
UITextField *address;
UITextField *city;
UITextField *state;
UITextField *zip;
UITextField *homePhone;
UITextField *cellPhone;
UITextField *email;
id <CustomerAddDelegate> delegate;
}
#property (nonatomic, strong) Customer *customer;
#property (nonatomic, strong) IBOutlet UITextField *firstName;
#property (nonatomic, strong) IBOutlet UITextField *lastName;
#property (nonatomic, strong) IBOutlet UITextField *address;
#property (nonatomic, strong) IBOutlet UITextField *city;
#property (nonatomic, strong) IBOutlet UITextField *state;
#property (nonatomic, strong) IBOutlet UITextField *zip;
#property (nonatomic, strong) IBOutlet UITextField *homePhone;
#property (nonatomic, strong) IBOutlet UITextField *cellPhone;
#property (nonatomic, strong) IBOutlet UITextField *email;
#property (nonatomic, strong) id <CustomerAddDelegate> delegate;
- (IBAction) saveCustomer;
- (IBAction) cancel;
#end
#protocol CustomerAddDelegate <NSObject>
-(void)customerAddViewController:(CustomerAddViewController *)customerAddViewController didAddCustomer:(Customer *)customer;
#end
CustomerAddView.m
#define NAME 0
#define ADDRESS 1
#define CONTACT 2
#import "CustomerAddViewController.h"
#import "Customer.h"
#implementation CustomerAddViewController
#synthesize firstName, lastName, address, city, state, zip, homePhone, cellPhone, email, customer, delegate;
//- (id)initWithStyle:(UITableViewStyle)style
//{
// self = [super initWithStyle:style];
// if (self) {
// // Custom initialization
// }
// return self;
//}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
// [super viewDidLoad];
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
//This stuff not needed because we are setting static sections and rows in storyboard
//- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
//{
// return 3;
//}
//
//- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
//{
// NSInteger rows = 0;
// switch (section) {
// case NAME:
// rows = 2;
// break;
// case ADDRESS:
// rows = 4;
// break;
// case CONTACT:
// rows = 3;
// break;
// }
//
// return rows;
//}
//- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
//{
// static NSString *CellIdentifier = #"Cell";
//
// UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// if (cell == nil) {
// cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
// }
//
// // Configure the cell...
//
// return cell;
//}
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
*/
}
#end

Answer 1

CustomerAddViewController *addController = [segue destinationViewController];
Are you sure your destination view controller is a CustomerAddViewController?
It looks like it's actually a navigation controller. Hence the [UINavigationController setCustomer:]: unrecognized selector sent to instance 0x8854700 when you do addController.customer = newCustomer

Answer 2

In continuation to the first answer, the correct way to then reach the destination view controller when a navigation controller is between is as follows
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"AddAccountSegue"])
{
UINavigationController *navigationController = segue.destinationViewController;
CustomerAddViewController *addController = (id)[[navigationController viewControllers] objectAtIndex:0];
[addController setCustomer:yourObject];
}
}