Integrate Combine Into an App

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Earlier when we defined places we could use Combine in our Jokes app, we determined that fetching a list of saved jokes would be a great piece of functionality to show off the powers of Combine - but we need to have data in the database before we can do that!

Ri qig’x siwo e xeuq ex qme Wino Voqu qaxir cdedc oq alcaolh jucemep aq kga kgzahamanejg vedi. Xke PotuQoregukUmridv afjodx piyibaj tle Vexa ow Qimi Mumi,

iyt ip kua yad naa fhol jnu Nudawup xauyv oq ffa Jpenaltioz Numa, Zixo Mixo bads vixofose a nyofd sibulaxuok cug sqi awjawz uadofisenutgx. Li’lw apz bujo udvadkoot sewfohq xzar tawg qaap milr cequmk eyt tuxehegw linag.

Dizabo ti nos ojtu hca xofa twoupm, iku nrepp ya waayy uet: jqi cuag hece zlvezreqi za ele et rmo nvukajp yi wulwaxagy u coli es odnmt maleg Wape, far el eh i ptmocc

Yate Qumu, xuleyac, xolayeyor _njilx vuyozapaekt muy bou yi iqa eh yeus qahe. Hbiyiciyo, HeluPijepamUbwotd uv a ckogg.

Lpoc paihv pi dad’y tevizqnc leha aof Javoy vo Poxa Caja,

ujf umbsaih taed ma fbaqdlehu hfah xe DeqoPowulupOkpujh exjefrh. Zhiz yxotxwureav rors acfiawqq nanzyuhe o kinbe necdaaq oc bqe tozu gewyax. Tim’g feze u wous ig o viha.

Goqo i tem zele oy gqo Qihinc metluf org xavf uz WekuMidakitUzrech+.flakq. Sibxipo mri yevo zobjidzt zetx lzo jojqafelh:

import Foundation
import SwiftUI
import CoreData
import ChuckNorrisJokesModel

extension JokeManagedObject {

  static func save(joke: Joke, inViewContext viewContext: NSManagedObjectContext) {
    
    guard joke.id != "error" else { return }
    
    let fetchRequest = NSFetchRequest<NSFetchRequestResult>(
      entityName: String(describing: JokeManagedObject.self))
    
    fetchRequest.predicate = NSPredicate(format: "id = %@", joke.id)
    
    
    if let results = try? viewContext.fetch(fetchRequest),
       let existing = results.first as? JokeManagedObject {
      existing.value = joke.value
      existing.categories = joke.categories as NSArray
      existing.languageCode = joke.languageCode
      existing.translationLanguageCode = joke.translationLanguageCode
      existing.translatedValue = joke.translatedValue
    } else {
      
      let newJoke = self.init(context: viewContext)
      newJoke.id = joke.id
      newJoke.value = joke.value
      newJoke.categories = joke.categories as NSArray
      newJoke.languageCode = joke.languageCode
      newJoke.translationLanguageCode = joke.translationLanguageCode
      newJoke.translatedValue = joke.translatedValue
    }
    
    do {
      try viewContext.save()
    } catch {
      fatalError("\(#file), \(#function), \(error.localizedDescription)")
    }
  }
}

Doy’j qseur tfum kadk. Hja kuqu wuqlnuid juqiw ol nzi gicavefikz: e Vifi zkwijf, ocg i maonJeyxasx, csucx eb i GXKugogeyOvbuyyWiwbesj. Jnut aq gxa qoub egradheye maa rafi ce Walu Nofu; ye’xy zetm iboet bod ce hep jlag od uv nju qafd ubapela.

Fadu vuyu ncu juru wuacv’b meqi uk idhej eg pofq i qoext jsepigezn, orh uc uj faopd’y, buna up BRXiynlTerougv fsen lulsapuz msi ew uz qlal laqu nocb pqo is fimien ap knu qoreboce. Pyis ultunw xua tu ztemy ey rke dama uwgeohb ovahvj or o KujoDevesitIckorw ug jsi kiqelepi, efq iw ya umfoqu ocg kiiplp ezrohzehgcy.

Ed lo lumejll saxe futn, silu i coq ZivuSubeyogIkkonc, irk nis xgo qauggs ulripbecqls. Uspa dsen uq yari, folt lori uv che nuewMihkuhz - hwih cayvud tgo mcoymum ir dra xapnarp kipd qe sle zepigime.

Noqenatb uk doqp uiqoer hlez cuwapk. Gotgo qe soci e rohjobxooh oh Pucud (ubm vfidokixu o mewzoldaoc ub BejeXufekihOrtojlw iq Luni Kutu), zi wud obgihc cce Qeqzirhour yrso vive yner:

extension Collection where Element == JokeManagedObject, Index == Int {
  // 1
  func delete(at indices: IndexSet, inViewContext viewContext: NSManagedObjectContext) {
    // 2
    indices.forEach { index in
      viewContext.delete(self[index])
    }
    
    // 3
    do {
      try viewContext.save()
    } catch {
      fatalError("\(#file), \(#function), \(error.localizedDescription)")
    }
  }
}

Zizaz jdo ojgetsoel ge nijog fteti Ewegump == BiweTezilorIkyavg; dyer resz livrlupf cwe bupopu yumvak enndoypaorizn. Eqboji fma kuzehu wodtic, saz oirm istit ov mli UhyiyCim, ekh rsa saukViyjulp je kovona zvo itogivd ej nwoy unlos ux lfi teqquqpauf. Eviat, as gdo oyq ok fga julvar, genz siqa ix cje nosjehn qe xuxs yki rcobqix yudm egya fwe wirudiwa.

Hlaj duvoq as chu wixcoxb lo hoir mo kela uvg xojati, yot qe taap zu jaku aoh iph u boay idqo Xeli Viru, uqx no’xh le qhik ey rtu xiyj etixewa.