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I bought this entity
understanding that some strings are picker and transformed to string like pickerselectionfromRoad
I bought this persistence controller:
import CoreData
struct PersistenceController {
static let shared = PersistenceController()
static var preview: PersistenceController = {
let outcome = PersistenceController(inMemory: true)
let viewContext = outcome.container.viewContext
for _ in 0..<10 {
let newItem = Merchandise(context: viewContext)
newItem.selectedVehicle = "car"
newItem.tripDate = Date()
newItem.selectedSpace = "house"
newItem.pickerSelectionfromRoad = "from"
newItem.pickerSelectiontoRoad = "to"
newItem.departureTime = Date()
newItem.arrivalTime = Date()
newItem.extraCharge = "cost"
newItem.extraWeight = "weight"
newItem.extraInfo = "information"
}
do {
attempt viewContext.save()
} catch {
// Change this implementation with code to deal with the error appropriately.
// fatalError() causes the applying to generate a crash log and terminate. You shouldn't use this operate in a delivery utility, though it might be helpful throughout growth.
let nsError = error as NSError
fatalError("Unresolved error (nsError), (nsError.userInfo)")
}
return outcome
}()
let container: NSPersistentContainer
init(inMemory: Bool = false) {
container = NSPersistentContainer(title: "MyProject")
if inMemory {
container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null")
}
container.viewContext.automaticallyMergesChangesFromParent = true
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
// Change this implementation with code to deal with the error appropriately.
// fatalError() causes the applying to generate a crash log and terminate. You shouldn't use this operate in a delivery utility, though it might be helpful throughout growth.
/*
Typical causes for an error right here embody:
* The dad or mum listing doesn't exist, can't be created, or disallows writing.
* The persistent retailer is just not accessible, resulting from permissions or knowledge safety when the system is locked.
* The system is out of house.
* The shop couldn't be migrated to the present mannequin model.
Verify the error message to find out what the precise drawback was.
*/
fatalError("Unresolved error (error), (error.userInfo)")
}
})
}
}
and I bought this test2 view the place I wish to place my knowledge in an inventory
import SwiftUI
import CoreData
struct Test2: View {
@Atmosphere(.managedObjectContext) personal var viewContext
@FetchRequest(
sortDescriptors: [NSSortDescriptor(keyPath: Item.pickerSelectionfromRoad, ascending: true)],
animation: .default)
personal var objects: FetchedResults<Merchandise>
var physique: some View {
NavigationView {
Listing {
ForEach(objects) { merchandise in
NavigationLink {
Textual content("Merchandise at (merchandise.tripDate!, formatter: itemFormatter)")
} label: {
Textual content(merchandise.tripDate!, formatter: itemFormatter)
Textual content(merchandise.pickerSelectiontoRoad!)
Textual content(merchandise.pickerSelectionfromRoad!)
}
}
.onDelete(carry out: deleteItems)
}
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
EditButton()
}
}
Textual content("Choose an merchandise")
}
}
personal func addItem() {
withAnimation {
let newItem = Merchandise(context: viewContext)
newItem.selectedVehicle = String()
newItem.tripDate = Date()
newItem.selectedSpace = String()
newItem.pickerSelectionfromRoad = String()
newItem.pickerSelectiontoRoad = String()
newItem.departureTime = Date()
newItem.arrivalTime = Date()
newItem.extraCharge = String()
newItem.extraWeight = String()
newItem.extraInfo = String()
do {
attempt viewContext.save()
} catch {
// Change this implementation with code to deal with the error appropriately.
// fatalError() causes the applying to generate a crash log and terminate. You shouldn't use this operate in a delivery utility, though it might be helpful throughout growth.
let nsError = error as NSError
fatalError("Unresolved error (nsError), (nsError.userInfo)")
}
}
}
personal func deleteItems(offsets: IndexSet) {
withAnimation {
offsets.map { objects[$0] }.forEach(viewContext.delete)
do {
attempt viewContext.save()
} catch {
// Change this implementation with code to deal with the error appropriately.
// fatalError() causes the applying to generate a crash log and terminate. You shouldn't use this operate in a delivery utility, though it might be helpful throughout growth.
let nsError = error as NSError
fatalError("Unresolved error (nsError), (nsError.userInfo)")
}
}
}
}
personal let itemFormatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateStyle = .brief
formatter.timeStyle = .medium
return formatter
}()
struct Test_Previews: PreviewProvider {
static var previews: some View {
Check().setting(.managedObjectContext, PersistenceController.preview.container.viewContext)
}
}
I would like the button in one other test1 view to do the add course of in an inventory to test2 view passing additionally test2 these variables
struct Test1: View {
@Atmosphere(.managedObjectContext) personal var viewContext
@FetchRequest(sortDescriptors: []) var objects: FetchedResults<Merchandise>
let variable = Test2()
var physique: some View{
Button(motion: {
self.variable.addItem()
}) {
Textual content("Submit")
.font(.system(measurement: 17))
.fontWeight(.daring)
.foregroundColor(.white)
.padding()
.background(
RoundedRectangle(cornerRadius: 25)
.fill(Colour("Colour"))
.shadow(shade: .grey, radius: 2, x: 0, y: 2)
)
}
}
}
struct Test1_Previews: PreviewProvider {
static var previews: some View {
Test1().setting(.managedObjectContext, PersistenceController.preview.container.viewContext)
}
}
however in any case this difficult work I find yourself having the issue right here in my terminal that error
2022-03-05 19:41:26.375211+0200 MyProject[30774:285444] [error] warning: View context accessed for persistent container MyProject with no shops loaded
CoreData: warning: View context accessed for persistent container MyProject with no shops loaded
2022-03-05 19:41:26.577667+0200 MyProject[30774:285444] [error] error: addPersistentStoreWithType:configuration:URL:choices:error: returned error NSCocoaErrorDomain (134140)
CoreData: error: addPersistentStoreWithType:configuration:URL:choices:error: returned error NSCocoaErrorDomain (134140)
CoreData: annotation: userInfo:
CoreData: annotation: destinationModel : (<NSManagedObjectModel: 0x6000005de260>) isEditable 0, entities {
Merchandise = "(<NSEntityDescription: 0x6000011fc840>) title Merchandise, managedObjectClassName Merchandise, renamingIdentifier Merchandise, isAbstract 0, superentity title (null), properties {n arrivalTime = "(<NSAttributeDescription: 0x6000008fb600>), title arrivalTime, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier arrivalTime, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 900 , attributeValueClassName NSDate, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n departureTime = "(<NSAttributeDescription: 0x6000008fb680>), title departureTime, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier departureTime, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 900 , attributeValueClassName NSDate, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n extraCharge = "(<NSAttributeDescription: 0x6000008fb700>), title extraCharge, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier extraCharge, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n extraInfo = "(<NSAttributeDescription: 0x6000008fb780>), title extraInfo, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier extraInfo, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n extraWeight = "(<NSAttributeDescription: 0x6000008fb800>), title extraWeight, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier extraWeight, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n pickerSelectionfromRoad = "(<NSAttributeDescription: 0x6000008fb880>), title pickerSelectionfromRoad, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier pickerSelectionfromRoad, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n pickerSelectiontoRoad = "(<NSAttributeDescription: 0x6000008fb900>), title pickerSelectiontoRoad, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier pickerSelectiontoRoad, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n selectedSpace = "(<NSAttributeDescription: 0x6000008fb980>), title selectedSpace, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier selectedSpace, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n selectedVehicle = "(<NSAttributeDescription: 0x6000008fba00>), title selectedVehicle, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier selectedVehicle, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n tripDate = "(<NSAttributeDescription: 0x6000008fba80>), title tripDate, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier tripDate, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 900 , attributeValueClassName NSDate, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n}, subentities {n}, userInfo {n}, versionHashModifier (null), uniquenessConstraints (n)";
}, fetch request templates {
}
CoreData: annotation: sourceModel : (<NSManagedObjectModel: 0x6000005fcb40>) isEditable 0, entities {
Merchandise = "(<NSEntityDescription: 0x6000011fcd10>) title Merchandise, managedObjectClassName NSManagedObject, renamingIdentifier Merchandise, isAbstract 0, superentity title (null), properties {n arrivalTime = "(<NSAttributeDescription: 0x6000008ed400>), title arrivalTime, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier arrivalTime, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 900 , attributeValueClassName NSDate, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n departureTime = "(<NSAttributeDescription: 0x6000008ed380>), title departureTime, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier departureTime, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 900 , attributeValueClassName NSDate, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n extraCharge = "(<NSAttributeDescription: 0x6000008ed800>), title extraCharge, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier extraCharge, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 200 , attributeValueClassName NSNumber, defaultValue 0, preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n extraInfo = "(<NSAttributeDescription: 0x6000008ed780>), title extraInfo, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier extraInfo, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n extraWeight = "(<NSAttributeDescription: 0x6000008ed300>), title extraWeight, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier extraWeight, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 200 , attributeValueClassName NSNumber, defaultValue 0, preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n id = "(<NSAttributeDescription: 0x6000008ed480>), title id, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier id, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 1100 , attributeValueClassName NSUUID, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n pickerSelectionfromRoad = "(<NSAttributeDescription: 0x6000008ed700>), title pickerSelectionfromRoad, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier pickerSelectionfromRoad, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n pickerSelectiontoRoad = "(<NSAttributeDescription: 0x6000008ed500>), title pickerSelectiontoRoad, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier pickerSelectiontoRoad, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n selectedSpace = "(<NSAttributeDescription: 0x6000008ed580>), title selectedSpace, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier selectedSpace, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n selectedVehicle = "(<NSAttributeDescription: 0x6000008ed600>), title selectedVehicle, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier selectedVehicle, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 700 , attributeValueClassName NSString, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n tripDate = "(<NSAttributeDescription: 0x6000008ed680>), title tripDate, isOptional 1, isTransient 0, entity Merchandise, renamingIdentifier tripDate, validation predicates (n), warnings (n), versionHashModifier (null)n userInfo {n}, attributeType 900 , attributeValueClassName NSDate, defaultValue (null), preservesValueInHistoryOnDeletion NO, allowsCloudEncryption NO";n}, subentities {n}, userInfo {n}, versionHashModifier (null), uniquenessConstraints (n)";
}, fetch request templates {
}
CoreData: annotation: motive : Cannot discover mapping mannequin for migration
CoreData: annotation: storeType: SQLite
CoreData: annotation: configuration: (null)
CoreData: annotation: URL: file:///Customers/consumer/Library/Developer/CoreSimulator/Gadgets/F1494E7C-CD8A-4151-8BDC-667933BB7D43/knowledge/Containers/Knowledge/Software/BB2F4DE6-F7BF-4093-B891-672021F99982/Library/Applicationpercent20Support/MyProject.sqlite
CoreData: annotation: choices:
CoreData: annotation: NSInferMappingModelAutomaticallyOption : 1
CoreData: annotation: NSMigratePersistentStoresAutomaticallyOption : 1
CoreData: annotation: <NSPersistentStoreCoordinator: 0x600000dfe840>: Trying restoration from error encountered throughout addPersistentStore: Error Area=NSCocoaErrorDomain Code=134140 "Persistent retailer migration failed, lacking mapping mannequin." UserInfo={destinationModel=(<NSManagedObjectModel: 0x6000005de260>) isEditable 0, entities {
}, fetch request templates {
}, motive=Cannot discover mapping mannequin for migration}
MyProject/Persistence.swift:61: Deadly error: Unresolved error Error Area=NSCocoaErrorDomain Code=134140 "Persistent retailer migration failed, lacking mapping mannequin." UserInfo={destinationModel=(<NSManagedObjectModel: 0x6000005de260>) isEditable 0, entities {
}, fetch request templates {
}, motive=Cannot discover mapping mannequin for migration}, ["sourceModel": (<NSManagedObjectModel: 0x6000005fcb40>) isEditable 0, entities {
}, fetch request templates {
}, "reason": Can't find mapping model for migration, "destinationModel": (<NSManagedObjectModel: 0x6000005de260>) isEditable 0, entities {
}, fetch request templates {
}]
2022-03-05 19:41:26.606803+0200 MyProject[30774:285444] Space_Book/Persistence.swift:61: Deadly error: Unresolved error Error Area=NSCocoaErrorDomain Code=134140 "Persistent retailer migration failed, lacking mapping mannequin." UserInfo={destinationModel=(<NSManagedObjectModel: 0x6000005de260>) isEditable 0, entities {
}, fetch request templates {
}, motive=Cannot discover mapping mannequin for migration}, ["sourceModel": (<NSManagedObjectModel: 0x6000005fcb40>) isEditable 0, entities {
}, fetch request templates {
}, "reason": Can't find mapping model for migration, "destinationModel":
}, fetch request templates {
}]
Please I wish to know what precipitated this drawback as a result of my work stopped not too long ago due to it !
Thanks very a lot !!
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