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101 lines
3.5 KiB
Swift
101 lines
3.5 KiB
Swift
//
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// MessageModel.swift
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// PushDeer
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//
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// Created by HEXT on 2022/1/15.
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//
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import Foundation
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import CoreData
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extension MessageModel {
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convenience init(id: Int64, uid: String, text: String, desp: String, type: String, pushkey_name: String, created_at: String, context: NSManagedObjectContext = PersistenceController.shared.container.viewContext) {
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self.init(context: context)
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self.id = id
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self.uid = uid
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self.text = text
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self.desp = desp
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self.type = type
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self.pushkey_name = pushkey_name
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self.created_at = created_at
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}
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convenience init(messageItem: MessageItem, context: NSManagedObjectContext = PersistenceController.shared.container.viewContext) {
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self.init(
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id: Int64(messageItem.id),
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uid: messageItem.uid,
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text: messageItem.text,
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desp: messageItem.desp,
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type: messageItem.type,
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pushkey_name: messageItem.pushkey_name,
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created_at: messageItem.created_at,
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context: context)
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}
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var createdDateStr: String {
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dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSSSSZ"
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let createdDate = dateFormatter.date(from: self.created_at ?? "") ?? Date()
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let timeInterval = -createdDate.timeIntervalSinceNow
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let minute = Int(floor(timeInterval / 60))
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if minute == 0 {
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return "刚刚"
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} else if minute <= 30 {
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return "\(minute)分钟前"
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} else if Calendar.current.isDateInToday(createdDate) {
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dateFormatter.dateFormat = "HH:mm:ss"
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} else {
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dateFormatter.dateFormat = "yyyy/MM/dd HH:mm:ss"
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}
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return dateFormatter.string(from: createdDate)
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}
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static let _viewContext = PersistenceController.shared.container.viewContext
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static let _fetchRequest = MessageModel.fetchRequest()
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/// 删除本地持久化的所有消息
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static func deleteAll() throws -> Void {
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// let fetchRequest: NSFetchRequest<NSFetchRequestResult> = MessageModel.fetchRequest()
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// let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
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// try _viewContext.execute(deleteRequest)
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let fetchRequest = MessageModel.fetchRequest()
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let models = try _viewContext.fetch(fetchRequest)
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models.forEach { model in
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_viewContext.delete(model)
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}
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try _viewContext.save()
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}
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/// 持久化保存和更新
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static func saveAndUpdate(messageItems: [MessageItem]) throws -> Void {
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try messageItems.forEach(saveAndUpdate)
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}
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/// 持久化保存和更新
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static func saveAndUpdate(messageItem: MessageItem) throws -> Void {
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_fetchRequest.predicate = NSPredicate(format: "id = \(messageItem.id)")
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let models = try _viewContext.fetch(_fetchRequest)
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if models.isEmpty {
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// 如果本地不存在, 就构建一个新的放进 context
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_ = MessageModel(messageItem: messageItem, context: _viewContext)
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} else {
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// 如果存在, 就更新第一个, 删除其它重复的
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models.enumerated().forEach { element in
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let messageModel = element.element
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let index = element.offset
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if index == 0 {
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messageModel.id = Int64(messageItem.id);
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messageModel.uid = messageItem.uid;
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messageModel.text = messageItem.text;
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messageModel.desp = messageItem.desp;
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messageModel.type = messageItem.type;
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messageModel.pushkey_name = messageItem.pushkey_name;
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messageModel.created_at = messageItem.created_at;
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} else {
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_viewContext.delete(messageModel)
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}
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}
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}
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// 保存 context 中的所有改动
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try _viewContext.save()
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}
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}
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