Save dictionary to local file please help!
Save dictionary to local file please help!
- Subject: Save dictionary to local file please help!
- From: Ben Spam <email@hidden>
- Date: Mon, 11 May 2009 09:10:10 +0000 (GMT)
Please help me, I'm in serious trouble if I do not sort this out!
I am trying to save a dictionary to a local file, but inserting a new record crashes my app and I can not fathom why, here is my code...please let me know if you see anything im doing wrong..
PS: the random key is purely for testing.
#import "MyTestClass.h"
@implementation MyTestClass
- (id) init
{
self = [super init];
//get path
NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
destinationPath = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"filePath.plist"];
//
dataDict = [NSMutableDictionary dictionaryWithContentsOfFile:destinationPath];
if(!dataDict){ NSLog(@"No File"); dataDict = [[NSMutableDictionary alloc] init];} else{[dataDict retain];}
return self;
}
- (void) insertNewRecord:(NSMutableDictionary*)newRecord{
[newRecord retain];
[dataDict setValue: newRecord forKey: [NSString stringWithFormat:@"test%d", (arc4random() % 1000)] ];
bool didSave = [dataDict writeToFile:destinationPath atomically:YES];
}
//singleton
static MyTestClass *myInstance = NULL;
+ (MyTestClass *)myTestClass
{
@synchronized(self)
{
if (myInstance == NULL)
myInstance = [[self alloc] init];
}
return(myInstance);
}
@end
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