FetchedResultsController

public class FetchedResultsController<T: NSManagedObject>

A type safe wrapper around an NSFetchedResultsController

fetchRequest
The NSFetchRequest being used by the FetchedResultsController
Declaration
Swift

public var fetchRequest: NSFetchRequest<T>


                    
                    
                    subscript(_:)

Subscript access to the sections

Declaration

Swift

public subscript(indexPath: IndexPath) -> T { return internalController.object(at: indexPath) }

fetchedObjects
The objects that match the fetch request
Declaration
Swift

public var fetchedObjects: [T]?
first
The first object matching the fetch request
Declaration
Swift

public var first: T?
count
The number of objects matching the fetch request
Declaration
Swift

public var count: Int
sectionCount
The number of sections matching the fetch request
Declaration
Swift

public var sectionCount: Int


                    
                    
                    sections

The sections returned by the FetchedResultsController see FetchedResultsSectionInfo

Declaration

Swift

public var sections: LazyMapCollection<[NSFetchedResultsSectionInfo], FetchedResultsSectionInfo<T>>?

cacheName
The name of the file used to cache section information.
Declaration
Swift

public var cacheName: String?
indexPathForObject(_:)
The NSIndexPath for a specific object in the fetchedObjects
Declaration
Swift

public func indexPathForObject(_ object: T) -> IndexPath?

Lifecycle


                    
                    
                    init(fetchRequest:managedObjectContext:sectionNameKeyPath:cacheName:)

Initializer for the FetchedResultsController

Declaration

Swift

public init(fetchRequest: NSFetchRequest<T>, managedObjectContext context: NSManagedObjectContext, sectionNameKeyPath: String? = nil, cacheName: String? = nil)

Public Functions

setDelegate(_:)
Function for setting the FetchedResultsControllerDelegate that will receive callback events.
Declaration
Swift

public func setDelegate<U: FetchedResultsControllerDelegate>(_ delegate: U) where U.T == T
performFetch()
Executes the fetch request tied to the FetchedResultsController

Throws
Any errors produced by the NSFetchResultsControllers performFetch() function.
Declaration
Swift

public func performFetch() throws