CoreData 예제

//
//  RootViewController.m
//  coretest
//
//  Created by jinwoo choi on 12. 12. 12..
//  Copyright (c) 2012년 jinwoo choi. All rights reserved.
//

#import "RootViewController.h"
#import "AppDelegate.h"
#import "Person.h"

@interface RootViewController ()

@end

@implementation RootViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


#pragma mark - tableView delegate

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 10;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
    if( cell == nil ){
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"];
    }
    
    cell.textLabel.text = @"test";
    
    return cell;
}


#pragma mark - textField
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField resignFirstResponder];
    [self saveToCoredata];
    return YES;
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
    [self saveToCoredata];
}


#pragma mark - coredata

- (void)saveToCoredata
{
    NSError *error;
    
    AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
    NSManagedObjectContext *context = appDelegate.managedObjectContext;
    NSManagedObjectModel *model = appDelegate.managedObjectModel;
    
    NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
    NSEntityDescription *dataEntity = [NSEntityDescription entityForName:@"Person" inManagedObjectContext:context];
    [fetchRequest setEntity:dataEntity];
    
    Person *obj = [NSEntityDescription insertNewObjectForEntityForName:@"Person" inManagedObjectContext:context];
    obj.pid = [NSNumber numberWithInt:1];
    obj.name = @"test";
    
    [context insertObject:obj];
    [context save:&error];
}

@end