static NSManagedObjectModel *managedObjectModel()
{
static NSManagedObjectModel *model = nil;
if (model != nil) {
return model;
}
NSString *path = @"CoreDataTutorial";
path = [path stringByDeletingPathExtension];
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"coredatatest" withExtension:@"mom"];
model = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];
return model;
}
static NSManagedObjectContext *managedObjectContext()
{
static NSManagedObjectContext *context = nil;
if (context != nil) {
return context;
}
@autoreleasepool {
context = [[NSManagedObjectContext alloc] init];
NSPersistentStoreCoordinator *coordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:managedObjectModel()];
[context setPersistentStoreCoordinator:coordinator];
NSString *STORE_TYPE = NSSQLiteStoreType;
NSString *path = @"coredatatest";
NSURL *url = [NSURL fileURLWithPath:[path stringByAppendingPathExtension:@"sqlite"]];
NSError *error;
NSPersistentStore *newStore = [coordinator addPersistentStoreWithType:STORE_TYPE configuration:nil URL:url options:nil error:&error];
if (newStore == nil) {
NSLog(@"Store Configuration Failure %@", ([error localizedDescription] != nil) ? [error localizedDescription] : @"Unknown Error");
}
}
return context;
}
int main(int argc, const char * argv[])
{
@autoreleasepool {
// Create the managed object context
NSManagedObjectContext *context = managedObjectContext();
// Custom code here...
// Save the managed object context
NSError *error = nil;
if (![context save:&error]) {
NSLog(@"Error while saving %@", ([error localizedDescription] != nil) ? [error localizedDescription] : @"Unknown Error");
exit(1);
}
NSString *dataPath = [[NSBundle mainBundle] pathForResource:@"Banks" ofType:@"json"];
NSArray *Banks = [NSJSONSerialization JSONObjectWithData:[NSData dataWithContentsOfFile:dataPath] options:kNilOptions error:&error];
NSLog(@"Imported Banks : %@", Banks);
[Banks enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
FailedBankInfo *failedBankInfo = [NSEntityDescription insertNewObjectForEntityForName:@"FailedBankInfo" inManagedObjectContext:context];
failedBankInfo.name = [obj objectForKey:@"name"];
failedBankInfo.city = [obj objectForKey:@"city"];
failedBankInfo.state = [obj objectForKey:@"state"];
FailedBankDetails *failedBankDetails = [NSEntityDescription insertNewObjectForEntityForName:@"FailedBankDetails" inManagedObjectContext:context];
failedBankDetails.closeDate = [NSDate dateWithString:[obj objectForKey:@"closeDate"]];
failedBankDetails.updateDate = [NSDate date];
failedBankDetails.zip = [obj objectForKey:@"zip"];
failedBankDetails.info = failedBankInfo;
failedBankInfo.details = failedBankDetails;
NSError *error = nil;
if (![context save:&error]) {
NSLog(@"Whoops, couldn't save: %@", [error localizedDescription]);
}
}];
// Test listing all FailedBankInfos from the store
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"FailedBankInfo" inManagedObjectContext:context];
[fetchRequest setEntity:entity];
NSArray *fetchedObjects = [context executeFetchRequest:fetchRequest error:&error];
for (FailedBankInfo *info in fetchedObjects) {
NSLog(@"Name: %@", info.name);
FailedBankDetails *details = info.details;
NSLog(@"Zip: %@", details.zip);
}
}
return 0;
}
참조 : http://www.raywenderlich.com
