FetchRequest

@available(iOS 10, OSX 10.12, watchOS 3.0, tvOS 10, *)
public final class FetchRequest<T> where T : NSManagedObject

Fetch Request

Create and perform fetch requests.

  • Perform fetch request.

    Returns array of objects that match with the provided object and other specified criteria.

    Declaration

    Swift

    public func get() -> [T]

  • Perform fetch request asynchronously.

    The block takes one parameter, array of objects that match with the provided object and specified criteria, or nil if error occurred.

    Declaration

    Swift

    public func getAsync(_ completion: @escaping (([T]?) -> Void))

    Parameters

    completion

    The block to execute when the request finishes.

  • Delete request.

    Perform delete request on the main context.

    Declaration

    Swift

    func delete()

  • Delete request asynchronously.

    Performs the delete request asynchronously, using the NSBatchDeleteRequest.

    • NSBatchDeleteRequest:

    A request to Core Data to do a batch delete of data in a persistent store without loading any data into memory.

    Declaration

    Swift

    func deleteAsync(_ completion: @escaping ((Bool) -> Void))

    Parameters

    completion

    The block to execute after the request finishes. This block takes one parameter Bool, true if the request is successful or false.