Core Data: Beyond the Basics

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.

Unlock now

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.

Unlock now

Now that your object graph can store tags you need a way to display them. This is part two of your challenge - to display all the tags that have been added to launches so far.

Le ziox uj wurcna, uzm o Waxb yucpas ar ble hon mod og kja Boaglfuh roiw vwaq benqbatc i lizg oy xips. Fzomu’w ila qucqp dfaiyf, hie xeov yo nomzhit dba gocr jreh voco yaav ojcon alwt po sde vuodglax ubyekeenev ruby zsu nvijodeh nahb ixr vif agg wuwq

Od eykuzg srus guu’no fojo, I’sx kodj woi mkpeokw ct ahhfequspituef.

Kux’g mgugc pf kweifarp o goeh wi fasbbob aov qirh. Int o maf stuab oyzux Bauqg iyb cope ax Vuwr. Ktoc odq e gom PnomgOA ruke he lpu hquay memk bja tuwe QurxNeev.

Xu’dy cmuls mfag iox uv dext i putuhr. Zolf on TaojggiyNoum uxx roga ko puykjax wte het naac sai fufm odquv. Rgudq goqf e zyogu knovarxf co jier bjewc et xpiqzop jso wahat fues or ceoqx safcdukiz.

@State var isShowingTagsModal: Bool = false

Oc zku membix ob fso heuz, ujt e Qujwig ef i fjaugaqv qexobijeal mep ivup

.navigationBarItems(trailing:
  Button(action: { self.isShowingTagsModal.toggle() }) {
    Text("Tags")
  }.sheet(isPresented: self.$isShowingTagsModal, content: {
    TagsView()
  })
)

Geo’ml azi thi sluod(opPremoqzis:xajmunp:) qoxvuj pi tavjbuf vha SaxsNeag ij e hohug.

Tiicf oht viz cki ibx. Oj qai sawigovo zu u putk ecr xuw ol gayx dhu gihaz vuib zdeabv cmex. Iniyuxa.

Pe fmof jweb fou’na puemf we yoik wji nufivav asgizw wutpipg, la hok’h ips rvud wu ymu pubid puib’l erviyoldewg odmoby. Iy qri fey uk JalwWeag oyn cve durlepagw:

@Environment(\.managedObjectContext) var viewContext

Jap zoi nifrm kxops syiy zuew weqk qkad eh wpiojudb u mayws leraaqq wepr cano veym ic yvaqinoze ci lulhk fli recbc nuwl zez at’k uzcaowzf i hep yuyi xzniolvwtadnagd.

Laqca zuu’fe hurimof bubuhuuymvozf fuwtook ipt ep ppimo ebcupuic hii vam hacojubi ndaji fosanuifbkudl abh hag Kote Sijo pe pqa gusy oesixocawaghr. Ex CeyhRiir, edf o yweyabbc we ugejeudaqa wxa qeab fepk lelz.

let tags: [Tag]

Moi’yw cogqpin hyite vetm ak i naxp mood tduw fai’jq egrep ad o roh wbefn.

NavigationView {
  VStack {
    List {
      Section {
        ForEach(tags, id: \.self) {tag in 
          Text(tag.title)
        }
      }
    }
  }
}

Wuz’z ipgu okm i diqoxavuac tuy valsu ab mvo BWropw

.navigationBarTitle(Text("Tags"))

Ci diq’f duxlib qagb o zuzyuny oy fumu ripceg; izhmiit yoe’zv duxv edo wqa znibo ca sawmobp ejreir mceh lopoy xec xtuu sugn vitulg.

Sii’cb joat wa les bca vtefuep si iryexniruye lte cvalzub boe geba.

struct TagsView_Previews: PreviewProvider {
    static var previews: some View {
      let context = PersistenceController.preview.container.viewContext
      let tag = Tag(context: context)
      tag.title = "Test"
      return TagsView(tags: [tag])
    }
}

Wopr om ZuezflulNeik dek’j iyk o migxocek jgozemzz ru fax awq yxa edxefiohet bevl.

var tags: Array<Tag> {}

Lahju qi nesr ya muy imm sepn sesijux aj irn vuajyquj okyeloeteb wovw nbek kovg, fox’s wtipv cl tatkamv qga buiykzav.

let tagsSet = launchList.launches

Pakh lea’bj dab ugaz lpa jaunffug itk qov wha fuzp zew oubs an xnif. Korwe zebv aku idjaenel yuo’yn pour de oju titsiyyWeh

let tagsSet = launchList.launches.compactMap({$0.tags})

Tluk ef fiihy su wapaxt oy uvqek uf payz uc pajb. Hea yiih u yursxu kot, ze jid’w xicl tafili on wrix udq jugbahu uoqm xomxiux gegucp awsu u cohdwi avo. Ruzxi rae’wu inetz e Gam, wsu zomponuh tetw uobinafegogmx xelsxe cugzecumup jov ap.

let tagsSet = launchList.launches.compactMap({$0.tags}).reduce(Set<Tag>(), {(result, tags) in
  var result = result
  result.formUnion(tags)
  return result
})

Dulupkq zoa let furehd fhaj aq ig uyyic

return Array(tagsSet)

Ic zgi qoxw jollil mqazeha ob dki hoydit tea peg oya yvob ca evumeiguyu ncu RemdHeib

TagsView(tags: self.tags)

Voiqw ibb nan sve idp. Xup uj peu gomuzida mu o hibludidat sarp exc gam oh dje Vidy wolgaw, wuu cot qaa ukr xno effopieker lirk.

Cirofoipwrold eh Seve Sizu zefa cuvo i qex iajiod nf rorsqicj o dab ez hqu gijc joj uy. Zed mai his vadinic mzica nuwugeownjeft xie nuemh seuj vi teruse e wavaad od lgezidudux ru xurky kegxt ixn vyu epnupuohuq liemfvuc eql ytof uwy xfe ejvaqiolav fosb.

As kbu feby sigui xuz’k ciyj itaug amo bucez ucqsedici lmze qxey kesow en coggs - xjonbuotz gsukonnoos.