30 lines
875 B
Swift
30 lines
875 B
Swift
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//
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// Collection.swift
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// CoreDataStack
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//
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// Created by Cirno MainasuK on 2020-10-14.
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//
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import Foundation
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import CoreData
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extension Collection where Iterator.Element: NSManagedObject {
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public func fetchFaults() {
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guard !self.isEmpty else { return }
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guard let context = self.first?.managedObjectContext else {
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fatalError("Managed object must have context")
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}
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let faults = self.filter { $0.isFault }
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guard let object = faults.first else { return }
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let request = NSFetchRequest<Iterator.Element>()
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request.entity = object.entity
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request.returnsObjectsAsFaults = false
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request.predicate = NSPredicate(format: "self in %@", faults)
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do {
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let _ = try context.fetch(request)
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} catch {
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assertionFailure(error.localizedDescription)
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}
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}
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}
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