NSFetchedResultsController with non unique section name

Question

I am initialising NSFetchedResultsController with following code

self.fetchedResultsController = NSFetchedResultsController(
            fetchRequest: request,
            managedObjectContext: context,
            sectionNameKeyPath: "article.name",cacheName: nil
        )

Here articles can have same name.So article.name sectionNameKeyPath is non unique.In this case fetchedResultsController will have only single section.

How can I handle multiple section with same section name?

then, what is the need for showing them as sections?, why don't you just show them as rows? — Ravi, Feb 10 '17 at 07:10
@raki see I have 5 components ( entity ) in which 2 are related to Article A and rest related to Article B .So my section names will be Article A,Article B.But If I am changing name of both article to X then I will one section thats the problem ! — UIBittu, Feb 10 '17 at 07:28
@jiama What if the section names are non unique.In my case user can change the name, so there is possibility of having two sections with same name. — UIBittu, Feb 10 '17 at 08:46
@jiama I have unique id for article but I need to display the article name as section title.If I am using the NSFetchedResultsController ,how can I achieve that ? — UIBittu, Feb 10 '17 at 10:44
@UIBittu If they are 5 article, you want to display them in 5 sections without grouping them? — Sahana Kini, Feb 16 '17 at 07:27

score 0 · Accepted Answer · answered Feb 16 '17 at 13:14

For the sectionKeyPath return a UUID for the section (article.articleId or the like). Then when you display the title for the header in section don't display the named returned from the fetchedResultsController (self.fetchedResultsController.sections[section].name), rather get the first object in the section and figure out what you really want to display based on that (self.fetchedResultsController.sections[section].objects.firstObject.article.name).

NSFetchedResultsController with non unique section name

1 Answers1