NetNewsWire/Frameworks/Database/AttachmentsTable.swift

57 lines
1.1 KiB
Swift

//
// AttachmentsTable.swift
// Database
//
// Created by Brent Simmons on 7/15/17.
// Copyright © 2017 Ranchero Software. All rights reserved.
//
import Foundation
import RSDatabase
import Data
struct AttachmentsTable: DatabaseTable {
let name: String
let databaseIDKey = DatabaseKey.attachmentID
private let cache = DatabaseObjectCache()
init(name: String) {
self.name = name
}
// MARK: DatabaseTable Methods
func objectWithRow(_ row: FMResultSet) -> DatabaseObject? {
if let attachment = attachmentWithRow(row) {
return attachment as DatabaseObject
}
return nil
}
func save(_ objects: [DatabaseObject], in database: FMDatabase) {
// TODO
}
}
private extension AttachmentsTable {
func attachmentWithRow(_ row: FMResultSet) -> Attachment? {
guard let attachmentID = row.string(forColumn: DatabaseKey.attachmentID) else {
return nil
}
if let cachedAttachment = cache[attachmentID] as? Attachment {
return cachedAttachment
}
guard let attachment = Attachment(attachmentID: attachmentID, row: row) else {
return nil
}
cache[attachmentID] = attachment as DatabaseObject
return attachment
}
}