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mastodon-app-ufficiale-ipho.../CoreDataStack/Entity/PollOption.swift

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//
// PollOption.swift
// CoreDataStack
//
// Created by MainasuK Cirno on 2021-3-2.
//
import Foundation
import CoreData
public final class PollOption: NSManagedObject {
@NSManaged public private(set) var index: NSNumber
@NSManaged public private(set) var title: String
@NSManaged public private(set) var votesCount: NSNumber?
@NSManaged public private(set) var createdAt: Date
@NSManaged public private(set) var updatedAt: Date
// many-to-one relationship
@NSManaged public private(set) var poll: Poll
// many-to-many relationship
@NSManaged public private(set) var votedBy: Set<MastodonUser>?
}
extension PollOption {
public override func awakeFromInsert() {
super.awakeFromInsert()
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setPrimitiveValue(Date(), forKey: #keyPath(PollOption.createdAt))
}
@discardableResult
public static func insert(
into context: NSManagedObjectContext,
property: Property,
votedBy: MastodonUser?
) -> PollOption {
let option: PollOption = context.insertObject()
option.index = property.index
option.title = property.title
option.votesCount = property.votesCount
option.updatedAt = property.networkDate
if let votedBy = votedBy {
option.mutableSetValue(forKey: #keyPath(PollOption.votedBy)).add(votedBy)
}
return option
}
public func update(votesCount: Int?) {
if self.votesCount?.intValue != votesCount {
self.votesCount = votesCount.flatMap { NSNumber(value: $0) }
}
}
public func update(voted: Bool, by: MastodonUser) {
if voted {
if !(self.votedBy ?? Set()).contains(by) {
self.mutableSetValue(forKey: #keyPath(PollOption.votedBy)).add(by)
}
} else {
if (self.votedBy ?? Set()).contains(by) {
self.mutableSetValue(forKey: #keyPath(PollOption.votedBy)).remove(by)
}
}
}
public func didUpdate(at networkDate: Date) {
self.updatedAt = networkDate
}
}
extension PollOption {
public struct Property {
public let index: NSNumber
public let title: String
public let votesCount: NSNumber?
public let networkDate: Date
public init(index: Int, title: String, votesCount: Int?, networkDate: Date) {
self.index = NSNumber(value: index)
self.title = title
self.votesCount = votesCount.flatMap { NSNumber(value: $0) }
self.networkDate = networkDate
}
}
}
extension PollOption: Managed {
public static var defaultSortDescriptors: [NSSortDescriptor] {
return [NSSortDescriptor(keyPath: \PollOption.createdAt, ascending: false)]
}
}