COPersistence.m

//
//  COPersistence.m
//  Correspondence
//
//  Created by Marco Paga on 18.05.11.
//  Copyright 2011 The Correspondence Team. All rights reserved.
//

#import "COPersistence.h"


@implementation COPersistence

- (id)init
{
    self = [super init];
    if (self) {
        // Initialization code here.
    }
    
    return self;
}

- (NSManagedObjectModel *)managedObjectModel {
    
    if (managedObjectModel != nil) {
        return managedObjectModel;
    }
	
    managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles:nil] retain];    
    return managedObjectModel;
}

- (NSPersistentStoreCoordinator *) persistentStoreCoordinator {
    
    if (persistentStoreCoordinator != nil) {
        return persistentStoreCoordinator;
    }
    
    NSFileManager *fileManager;
    NSString *applicationSupportFolder = nil;
    NSURL *url;
    NSError *error;
    
    fileManager = [NSFileManager defaultManager];
    applicationSupportFolder = [[[NSApplication sharedApplication] delegate] applicationSupportFolder];
    if ( ![fileManager fileExistsAtPath:applicationSupportFolder isDirectory:NULL] ) {
        [fileManager createDirectoryAtPath:applicationSupportFolder withIntermediateDirectories:YES attributes:nil error:&error];
    }
    
    NSString* coreDataFile = [APP_NAME stringByAppendingString:@".sqlite"];
    url = [NSURL fileURLWithPath: [applicationSupportFolder stringByAppendingPathComponent: coreDataFile]];
    persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectModel]];
    if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:url options:nil error:&error]){
        [[NSApplication sharedApplication] presentError:error];
    }    
    
    return persistentStoreCoordinator;
}

- (NSManagedObjectContext *) managedObjectContext {
    
    if (managedObjectContext != nil) {
        return managedObjectContext;
    }
    
    NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];
    if (coordinator != nil) {
        managedObjectContext = [[NSManagedObjectContext alloc] init];
        [managedObjectContext setPersistentStoreCoordinator: coordinator];
    }
    
    return managedObjectContext;
}

- (void)dealloc
{
    [managedObjectContext release];
    managedObjectContext = nil;
    
    [persistentStoreCoordinator release];
    persistentStoreCoordinator = nil;
    
    [managedObjectModel release];
    managedObjectModel = nil;
    
    [super dealloc];
}

@end