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POCore Data Edit/Save Attributes in an Entity
 

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    <p>I am struggling with the editing/saving in Core Data and need some help in this. I am using NSFetchedResultsController and have an entity named Golfer with attributes- first_name, last_name, email_id and others in Core Data. So, I know how to add and remove golfers from the database.</p> <p>I am working on one view controller called ViewManager (kinda base view for all my classes) and it has 2-3 Custom UIViews inside it. I animate them in and out whenever I need them.</p> <p>I add a golfer to the tableview, then on didSelectRow tableview method, I present my edit View inside the same ViewManager controller and try to update the textfields in the edit view using the following code, but it's updating at random indexes in the tableview and not working for me. Any help would be greatly appreciated.</p> <pre><code>- (IBAction)saveEditGolfersView:(id)sender { AppDelegate * applicationDelegate = (AppDelegate *) [[UIApplication sharedApplication] delegate]; NSManagedObjectContext * context = [applicationDelegate managedObjectContext]; // Retrieve the entity from the local store -- much like a table in a database NSEntityDescription *entity = [NSEntityDescription entityForName:@"Golfer" inManagedObjectContext:context]; NSFetchRequest *request = [[NSFetchRequest alloc] init]; [request setEntity:entity]; // Set the sorting -- mandatory, even if you're fetching a single record/object NSSortDescriptor *sortDescriptor1 = [[NSSortDescriptor alloc] initWithKey:@"first_name" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor1,nil]; [request setSortDescriptors:sortDescriptors]; [sortDescriptors release]; sortDescriptors = nil; [sortDescriptor1 release]; sortDescriptor1 = nil; NSError * error; NSArray * objects = [context executeFetchRequest:request error:&amp;error]; for(int i = 0; i&lt;[objects count]; i++) { Golfer * golfguy = [objects objectAtIndex:i]; golfguy.first_name = mEditFirstName.text; golfguy.middle_name = mEditMiddleName.text; golfguy.last_name = mEditLastName.text; golfguy.email_id = mEditEmailField.text; golfguy.contactNumber = mEditContactNum.text; golfguy.picture = mEditPictureView.image; NSLog(@"name-%@", golfguy.first_name); } [request release]; request = nil; error = nil; [context save:&amp;error]; [UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^ { mEditGolfersView.frame = CGRectMake(-480, mEditGolfersView.frame.origin.y, mEditGolfersView.frame.size.width, mEditGolfersView.frame.size.height); } completion:^(BOOL finished) { mEditGolfersView.hidden = YES; }]; } </code></pre>
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    1. USAngad Manchanda
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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