mirror of
https://github.com/JohnEstropia/CoreStore.git
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90 lines
3.5 KiB
Swift
90 lines
3.5 KiB
Swift
//
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// NSFetchedResultsController+ObjectiveC.swift
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// CoreStore
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//
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// Copyright © 2016 John Rommel Estropia
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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import Foundation
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import CoreData
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// MARK: - CSDataStack
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@available(OSX 10.12, *)
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public extension CSDataStack {
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@available(*, deprecated, message: "CoreStore will obsolete NSFetchedResultsController support in the future in favor of CSListMonitor")
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@objc
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public func createFetchedResultsControllerFrom(_ from: CSFrom, sectionBy: CSSectionBy, fetchClauses: [CSFetchClause]) -> NSFetchedResultsController<NSManagedObject> {
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return createFRC(
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fromContext: self.bridgeToSwift.mainContext,
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from: from,
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sectionBy: sectionBy,
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fetchClauses: fetchClauses
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)
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}
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}
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// MARK: - CSUnsafeDataTransaction
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@available(OSX 10.12, *)
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public extension CSUnsafeDataTransaction {
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@available(*, deprecated, message: "CoreStore will obsolete NSFetchedResultsController support in the future in favor of CSListMonitor")
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@objc
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public func createFetchedResultsControllerFrom(_ from: CSFrom, sectionBy: CSSectionBy, fetchClauses: [CSFetchClause]) -> NSFetchedResultsController<NSManagedObject> {
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return createFRC(
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fromContext: self.bridgeToSwift.context,
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from: from,
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sectionBy: sectionBy,
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fetchClauses: fetchClauses
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)
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}
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}
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// MARK: - Private
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@available(OSX 10.12, *)
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fileprivate func createFRC(fromContext context: NSManagedObjectContext, from: CSFrom? = nil, sectionBy: CSSectionBy?, fetchClauses: [CSFetchClause]) -> NSFetchedResultsController<NSManagedObject> {
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let controller = CoreStoreFetchedResultsController(
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context: context,
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fetchRequest: CoreStoreFetchRequest().dynamicCast(),
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from: from?.bridgeToSwift,
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sectionBy: sectionBy?.bridgeToSwift,
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applyFetchClauses: { (fetchRequest) in
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fetchClauses.forEach { $0.applyToFetchRequest(fetchRequest as! NSFetchRequest<NSFetchRequestResult>) }
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CoreStore.assert(
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fetchRequest.sortDescriptors?.isEmpty == false,
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"An \(cs_typeName(NSFetchedResultsController<NSManagedObject>.self)) requires a sort information. Specify from a \(cs_typeName(CSOrderBy.self)) clause or any custom \(cs_typeName(CSFetchClause.self)) that provides a sort descriptor."
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)
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}
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)
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return controller.dynamicCast()
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}
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