2 replies to this topic

[Dennis]

Hi 

 

When using the dataFetchOptions to sort a section...

 

 

self.tableModel.dataFetchOptions.sort = YES;

self.tableModel.dataFetchOptions.sortAscending = YES;

self.tableModel.dataFetchOptions.sortKey = @"title";

 

...results in a sortDescriptor using the compare: selector

 

 

self.tableModel.dataFetchOptions.sortDescriptors NSArray: (title, ascending, compare:)

 

 

I would like to set up the sortDescriptor to use the caseInsensitiveCompare: selector.

How can I do that?

 

 

NB: I am a aware I can also sort the items myself in section.sectionActions.didFetchItemsFromStore, but that would mean having to change a quite a lot of code. I would be *much* more straightforward to be able to set the sortDescriptor (or its compare selector) on the dataFetchOptions.

 

Thanks

Dennis

 

 

 

 

[Tarek]

Hi Dennis,

 

The current way to further customize sorting, other than implementing 'didFetchItemsFromStore', is to subclass your relevant data fetch options class and provide your own custom 'sortDescriptors' method override. For instance, if you're working with SCCoreDataFetchOptions:

 

@interface MyFetchOptions : SCCoreDataFetchOptions
@end

@implementation MyFetchOptions
- (NSArray *)sortDescriptors
{
  return myCustomDescriptors;
}
@end


...
// later in your ViewController
...

SCCoreDataFetchOptions *oldOptions = myArrayOfObjectsSection.dataFetchOptions;
MyFetchOptions *myFetchOptions = [MyFetchOptions optionsWithSortKey:oldOptions.sortKey sortAscending:YES filterPredicate:nil];
myFetchOptions.orderAttributeName = oldOptions.orderAttributeName; // only required if you're setting 'orderAttributeName'
myArrayOfObjectsSection.dataFetchOptions = myFetchOptions;

Edited by Tarek, 10 August 2016 - 10:09 AM.
Fixed typo

[Dennis]

Many, thanks. Will try that  (somehow missed your reply). 

 

Edit: That took 5 minutes and works perfectly!

 

Dennis

Edited by Dennis, 25 September 2016 - 11:39 AM.