78 lines
1.9 KiB
Swift
78 lines
1.9 KiB
Swift
//
|
|
// Copyright 2019 Signal Messenger, LLC
|
|
// SPDX-License-Identifier: AGPL-3.0-only
|
|
//
|
|
|
|
import Foundation
|
|
import GRDB
|
|
|
|
func convertDateForGrdb(_ value: Date) -> Double {
|
|
return value.timeIntervalSince1970
|
|
}
|
|
|
|
// MARK: - SDSSerializer
|
|
|
|
public protocol SDSSerializer {
|
|
func asRecord() -> SDSRecord
|
|
}
|
|
|
|
// MARK: - SDSSerializer Helpers
|
|
|
|
public extension SDSSerializer {
|
|
|
|
// MARK: - Numeric Primitive
|
|
|
|
func archiveOptionalNSNumber<T>(_ value: NSNumber?, conversion: (NSNumber) -> T) -> T? {
|
|
guard let value = value else {
|
|
return nil
|
|
}
|
|
return conversion(value)
|
|
}
|
|
|
|
func archiveNSNumber<T>(_ value: NSNumber, conversion: (NSNumber) -> T) -> T {
|
|
return conversion(value)
|
|
}
|
|
|
|
// MARK: - Date
|
|
|
|
func archiveOptionalDate(_ value: Date?) -> Double? {
|
|
guard let value = value else {
|
|
return nil
|
|
}
|
|
return archiveDate(value)
|
|
}
|
|
|
|
func archiveDate(_ value: Date) -> Double {
|
|
return convertDateForGrdb(value)
|
|
}
|
|
|
|
// MARK: - Blob
|
|
|
|
func optionalArchive(_ value: Any?) -> Data? {
|
|
guard let value = value else {
|
|
return nil
|
|
}
|
|
return requiredArchive(value)
|
|
}
|
|
|
|
/// Avoid the cost of actually archiving empty string arrays that are
|
|
/// declared optional (e.g. TSInteraction.attachmentIds)
|
|
func optionalArchive(_ value: [String]?) -> Data? {
|
|
guard let value = value, !value.isEmpty else {
|
|
return nil
|
|
}
|
|
return requiredArchive(value)
|
|
}
|
|
|
|
/// Avoide the cost of actually archiving empty message body range objects.
|
|
func optionalArchive(_ value: MessageBodyRanges?) -> Data? {
|
|
guard let value = value, value.hasRanges else {
|
|
return nil
|
|
}
|
|
return requiredArchive(value)
|
|
}
|
|
|
|
func requiredArchive(_ value: Any) -> Data {
|
|
return try! NSKeyedArchiver.archivedData(withRootObject: value, requiringSecureCoding: false)
|
|
}
|
|
}
|