Storing in CoreData from Array of Dictionary objects - ios

Question

I have an array friendsArray of dictionary objects which looks something like this:
(
{
name = "james p";
phone = 345345345;
},
{
name = "sam b";
phone = 345345345;
},
{
name = "aaron s";
phone = 346346456;
}
)
Now I'm storing it to coredata like this
NSMutableDictionary *friends = [[NSMutableDictionary alloc] init];
for (int count = 0; count <[friendsArray count]; count++) {
NSError *error;
NSEntityDescription *entityDesc = [NSEntityDescription entityForName:#"FriendContacts" inManagedObjectContext:context];
NSManagedObject *friendsObject = [[NSManagedObject alloc] initWithEntity:entityDesc insertIntoManagedObjectContext:context];
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setEntity:entityDesc];
friends = [friendsArray objectAtIndex:count];
[friendsObject setValue:[friends objectForKey:#"name"] forKey:#"name"];
[friendsObject setValue:[friends objectForKey:#"phone"] forKey:#"phone"];
[context save:&error];
}
Here is the screenshot of SQL Browser
It is storing data but making duplicate of this dictionary, I don't know why.

Answer 1

Try the following - its a bit cleaner :)
Observe how many times the log statement is outputted and check the object it outputs.
NSEntityDescription *entityDesc = [NSEntityDescription entityForName:#"FriendContacts" inManagedObjectContext:context];
for (NSDictionary *friend in friendsArray) {
NSManagedObject *friendsObject = [[NSManagedObject alloc] initWithEntity:entityDesc insertIntoManagedObjectContext:context];
[friendsObject setValue:[friend objectForKey:#"name"] forKey:#"name"];
[friendsObject setValue:[friend objectForKey:#"phone"] forKey:#"phone"];
NSLog(#"Created new friends object: %#", friendsObject);
if ([context hasChanges]) {
NSError *error;
if (![context save:&error]) {
NSLog(#"Problem saving changes: %#", error);
}
}
}
EDIT:
You might also be better off saving after the loop is finished too (if you have a large data set), just move the if statement outside the loop.