Unable to get value from model

Question

I receive a SIGABRT when I try to get a non-null variable. Code: NSLog(@"%@", appDelegate.xmlData.magDictionary); for (Magazine *ibb in appDelegate.xmlData.magDictionary) { NSLog(@"%@", [ibb title]); } Output: { 1 = ""; 2 = ""; 3 = ""; 4 = ""; 5 = ""; 6 = ""; 7 = ""; 8 = ""; } and SIGABRT on NSLog(@"%@", [ibb title]); The Magazine model: @synthesize title, key, teaser, tags, items, progressBar; JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

According to the comments, it appears that you do wrong in your Magazine initializer. Using retain mode for the property doesn't really matter, but I would have used copy instead for string. Anyway, the title string coming from originalMag isn't retained, or copied at all when assigned to the title ivar of your Magazine, thus I bet it is deallocated before you try to print any value, causing the crash. Another point, doing : title = [[NSString alloc] init]; title = [originalMag title]; generates a memory leak (and you still don't retain the original title). Rewrite the initializer like so : -(id)initWithMagazine:(Magazine *)originalMag { ..... title = [[originalMag title] copy]; // or title = [[NSString alloc] initWithString:[originalMag title]]; .... } and this should solve your app crash.