Core Data - failing to load data, entity not found - ios

Question

I have created a simple 1 entity data model through Core Data. I add an entity in "didFinishLaunchingWithOptions" of "AppDelegate". Then, I am trying to load the data of the model to an array and then a table view.
I am aware that there are similar post, but I still can't find out whats wrong with my code.
List of things I have tried and checked:
The entity is added properly into the model
I have already checked the entity names and they are correct.
I have tried deleting the app and clean rebuilding it but still nothing.
So there must be a more major issue with my code. Any help is appreciated.
Here is my error:
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '+entityForName: could not locate an NSManagedObjectModel for entity name 'FavoritesInfo'
AppDelegate.h
#import <UIKit/UIKit.h>
#import "favTable.h"
#interface AppDelegate : UIResponder <UIApplicationDelegate>
#property (strong, nonatomic) UIWindow *window;
#property (strong, nonatomic) favTable *viewController;
#property (strong, nonatomic) UINavigationController *navController;
#property (nonatomic, retain, readonly) NSManagedObjectModel *managedObjectModel;
#property (nonatomic, retain, readonly) NSManagedObjectContext *managedObjectContext;
#property (nonatomic, retain, readonly) NSPersistentStoreCoordinator *persistentStoreCoordinator;
- (NSURL *)applicationDocumentsDirectory; // reference files for core data
#end
AppDelegate.m
#import "AppDelegate.h"
#implementation AppDelegate
#synthesize window = _window;
#synthesize viewController = _viewController;
#synthesize navController = _navController;
#synthesize managedObjectContext = _managedObjectContext;
#synthesize managedObjectModel = _managedObjectModel;
#synthesize persistentStoreCoordinator = _persistentStoreCoordinator;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
NSManagedObjectContext *context = [self managedObjectContext];
NSManagedObject *favoritesInfo = [NSEntityDescription
insertNewObjectForEntityForName:#"FavoritesInfo"
inManagedObjectContext:context];
[favoritesInfo setValue:#"Product 1" forKey:#"name"];
[favoritesInfo setValue:[NSNumber numberWithInt:15] forKey:#"score"];
NSError *error;
if (![context save:&error]) {
NSLog(#"Whoops, couldn't save: %#", [error localizedDescription]);
}
return YES;
}
Then in the class of the table viewcontroller favtable.h
#import <UIKit/UIKit.h>
#interface favTable : UITableViewController <NSFetchedResultsControllerDelegate>
{
NSFetchedResultsController *fetchedResultsController;
NSManagedObjectContext *managedObjectContext;
NSArray *favArr;
int num;
}
#property (nonatomic, strong) NSArray *favArr;
#property (nonatomic, retain) NSManagedObjectContext *managedObjectContext;
#property (nonatomic, retain) NSFetchedResultsController *fetchedResultsController;
#end
favtable.m viewdidload
#import "favTable.h"
#import "AppDelegate.h"
#interface favTable ()
#end
#implementation favTable
#synthesize favArr;
#synthesize spVC;
#synthesize managedObjectContext = _managedObjectContext;
#synthesize fetchedResultsController;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = #"Favorites";
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription
entityForName:#"FavoritesInfo" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSError *error=nil;
self.favArr=[managedObjectContext executeFetchRequest:fetchRequest error:&error];
if (error!=nil) {
NSLog(#" fetchError=%#,details=%#",error,error.userInfo);
}
}

Answer 1

Your managedObjectContext is not set in your ViewController.
Set it in your AppDelegate didFinishLaunchingWithOptions, usually looks like:
ViewControllerClass *controller = (ViewControllerClass*)self.window.rootViewController;
or with a navigation controller:
UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
ViewControllerClass *controller = (ViewControllerClass *)navigationController.topViewController;
And then:
controller.managedObjectContext = self.managedObjectContext;

Answer 2

In my favtable.m class I added this to set the managedObjectContext and it works properly.
self.managedObjectContext = ((AppDelegate *) [UIApplication sharedApplication].delegate).managedObjectContext;