Post not yet marked as solved
I'm trying to setup a filter option for some core data records, but I'm not seeing the expected results.
Essentially, what I want is to have multiple sections. Within each section it would be an OR query, and an AND between each section. I've tried setting it up as below.
func getBasicFilter() -> NSPredicate? {
var predicatesBagsLeft : [NSPredicate] = []
var predicatesDrillType : [NSPredicate] = []
var andPredicates : [NSPredicate] = []
print("Filter List")
print(filters)
// Bags Left
if let show = filters["showFullLeft"] {
if show {
print("Predicates : Show Full")
let predicate = NSPredicate(format: "ANY projectColours.fullLeft > 0")
predicatesBagsLeft.append(predicate)
}
}
if let show = filters["showPartialLeft"] {
if show {
print("Predicates : Show Partial")
let predicate = NSPredicate(format: "ANY projectColours.partialLeft > 0")
predicatesBagsLeft.append(predicate)
}
}
// Drill Types
if let show = filters["showSquareOnly"] {
if show {
print("Predicates : Show Square Only")
let predicate = NSPredicate(format: "ANY projectColours.project.drillType = %@", "Square")
predicatesDrillType.append(predicate)
}
}
// Drill Manufacturers - TO DO
// Combine Predicates
if predicatesBagsLeft.count > 0 {
let predicatesForBagsLeft = NSCompoundPredicate(type: .or, subpredicates: predicatesBagsLeft)
andPredicates.append(predicatesForBagsLeft)
}
if predicatesDrillType.count > 0 {
let predicatesForDrillType = NSCompoundPredicate(type: .or, subpredicates: predicatesDrillType)
andPredicates.append(predicatesForDrillType)
}
if andPredicates.count > 0 {
let predicates = NSCompoundPredicate(type: .and, subpredicates: andPredicates)
return predicates
}
return nil
}
It does filter, but doesn't seem to be applying both correctly. I'm testing with a filter of showFullLeft & showSquareOnly, so it should show only squares which have a a fullest > 0
I'm getting 7 results back, but one of them is unwanted. It is square, but it has 0 for both full & partial
When I look at the query core data is using it looks correct
CoreData: sql: SELECT t0.ZMANU, COUNT (DISTINCT t0.Z_PK) FROM ZCOLOUR t0 JOIN ZPROJECTCOLOUR t1 ON t0.Z_PK = t1.ZCOLOUR JOIN ZPROJECTCOLOUR t2 ON t0.Z_PK = t2.ZCOLOUR JOIN ZPROJECT t3 ON t2.ZPROJECT = t3.Z_PK WHERE ( t1.ZFULLLEFT > ? AND t3.ZDRILLTYPE = ?) GROUP BY t0.ZMANU ORDER BY t0.ZMANU
CoreData: details: SQLite bind[0] = 0
CoreData: details: SQLite bind[1] = "Square"
Post not yet marked as solved
I'm trying to move an app over to swiftui and have run into a couple of issues involving quick actions.
I'm trying to get the app to respond to the action.
I have a CustomSceneDelegate setup, which is receiving the actions.
How do I get it to navigate to a view when the addProject is used, and how do I get a core data query in the addTime?
class CustomSceneDelegate: UIResponder, UIWindowSceneDelegate {
func windowScene(_ windowScene: UIWindowScene, performActionFor shortcutItem: UIApplicationShortcutItem, completionHandler: @escaping (Bool) -> Void) {
handleShortcutItem(shortcutItem)
}
func handleShortcutItem(_ shortcutItem: UIApplicationShortcutItem) {
if shortcutItem.type == "addProject" {
print("Phase: Add Project")
} else if shortcutItem.type == "addTime" {
print("Phase: Add Time")
}
}
}
Post not yet marked as solved
I'm trying to do a mass conversion of images to data so it can be stored in core data.
The conversion part works fine, and if I do it without updating core data it shows memory usage at less that 100MB
If I update the core data object, it just keeps consuming memory until the app crashes.
func updateLocalImages() {
let fetchRequest: NSFetchRequest<Picture> = Picture.fetchRequest()
fetchRequest.predicate = NSPredicate(format: "pictureName != \"\"")
do {
let pictures = try moc.fetch(fetchRequest)
print("Picture Update Count: \(pictures.count)")
for picture in pictures {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let path = paths[0]
if let picName = picture.pictureName {
let imagePath = path.appendingPathComponent(picName)
if let uiImage = UIImage(contentsOfFile: imagePath.path) {
if let imageData = uiImage.jpegData(compressionQuality: 1.0) {
autoreleasepool {
picture.pictureData = imageData
print("Picture Updated")
saveContext()
}
}
}
}
}
} catch {
print("Fetching Failed")
}
}
If I comment out the picture.pictureData = imageData line I don't get the memory issues.
What's the correct way of going about this? There is an unknown number of images (mine current sits at about 5.5GB worth, 800+)
Post not yet marked as solved
I have a SwiftData class which has an attribute of
var dimObject : DIM?
I'm trying to assign a DIM object to that attribute, buts its randomly failing with
Thread 1: EXC_BAD_ACCESS (code=1, address=0x8000000000000010)
Its never the same object, nor do I get any further indications of what's causing it.
I've narrowed it down to
digimon.dimObject = dimFound
in the below function
func insertDigimon(digimon: Digimon) {
Thread.sleep(forTimeInterval: 1)
if let dimFound = getDIMFromID(dimID: digimon.dim) {
print("****************************************************************")
print("Digimon: \(digimon.name) - ID: \(digimon.id)")
print("DIM: \(dimFound.name)")
print("Set DIM Object on Digimon")
digimon.dimObject = dimFound
print("Digimon object set")
print("Add digimon to DIM")
dimFound.addToDigimon(d: digimon)
print("Digimon added to DIM")
}
modelContext.insert(digimon)
}
If I comment out that line, there's no error
Both the digimon and dimFound objects aren't nil and contain the expected object.
Post not yet marked as solved
I have the below fetch request which I want to be able to dynamically change the setup of.
The request is setup initially as
sectionIdentifier: \.level,
sortDescriptors: [NSSortDescriptor(keyPath: \Card.level, ascending: true),
NSSortDescriptor(keyPath: \Card.setID, ascending: true),
NSSortDescriptor(keyPath: \Card.cardID, ascending: true),
NSSortDescriptor(keyPath: \Card.name, ascending: true)],
animation: .default)
private var cards: SectionedFetchResults<Int16, Card>
I've got the predicate change working fine, but get errors with the sort descriptors and the section identifier
On setting the sort descriptors I get the error
Cannot convert value of type 'NSSortDescriptor' to expected element type 'Array<SortDescriptor>.ArrayLiteralElement' (aka 'SortDescriptor')
And setting the section identifier I get
Cannot assign value of type 'SectionedFetchResults<String, Card>.Type' to type 'KeyPath<Card, Int16>'
The code I have is below.
if groupBy == 2 {
cards.nsPredicate = nil
let sortSetID = NSSortDescriptor(keyPath: \Card.setID, ascending: true)
let sortName = NSSortDescriptor(keyPath: \Card.name, ascending: true)
cards.sortDescriptors = [sortSetID, sortName] // This errors
cards.sectionIdentifier = SectionedFetchResults<String, Card> // This errors
}
Post not yet marked as solved
I'm trying to adjust a list so that it can have multiple selection.
It works when I use hard coded data, but when I try and use it with core data, the option to edit the list doesn't bring the checkboxes up.
Working code
struct DIMTest: Identifiable {
let id = UUID()
let name: String
}
struct DimTypeListView: View {
let contacts = [
DIMTest(name: "John"),
DIMTest(name: "Alice"),
DIMTest(name: "Bob")
]
// 2
@State private var multiSelection = Set<DIM>()
var body: some View {
NavigationView {
VStack {
// 3
List(contacts, selection: $multiSelection) { contact in
Text(contact.name)
}
Text("\(multiSelection.count) selections")
}
.navigationTitle("Contacts")
.toolbar {
// 4
EditButton()
}
}
}
}
but when I adjust the code to the below to load from core data, I don't get the checkboxes
@SectionedFetchRequest var dims: SectionedFetchResults<Bool, DIM>
init(dType: DimType) {
_dims = SectionedFetchRequest<Bool, DIM>(
sectionIdentifier: \.favourite,
sortDescriptors: [NSSortDescriptor(keyPath: \DIM.favourite, ascending: false), NSSortDescriptor(keyPath: \DIM.name, ascending: true)],
predicate: NSPredicate(format: "dimType = %@", dType)
)
}
@State private var multiSelection = Set<DIM>()
var body: some View {
VStack {
List(dims, selection: $multiSelection) { section in
Section() {
ForEach(section) { dim in
Text("Name")
}
}
}
Text("\(multiSelection.count) selections")
}
.navigationTitle("DIMs")
.toolbar {
EditButton()
}
}
It shows the correct number of entries, but can't be selected
If i add an onDelete, i get the delete options but only want to be able to select, not delete
Post not yet marked as solved
I have a list with sections headers on two views. One view has the section headers as collapsible, the other doesn't.
Both use pretty much the same code, what defines if a section header is collapsible?
Code for the one that doesn't collapse
ForEach(cards) { section in
let header: String = nameForSectionHeader(sectionID: section.id)
Section(header: Text(header)) {
ForEach(section) { card in
NavigationLink(destination: CardView(card: card)) {
HStack {
Image(card.imageName ?? "")
.renderingMode(.original)
.resizable()
.scaledToFit()
.frame(width: 50.0)
VStack(alignment: .leading) {
if let name = card.name, let id = card.cardID {
Text("\(id) - \(name)")
}
Text("Owned: \(card.owned)")
}
}
}
}
}
}
}
and the code for the one that does
ForEach(cards) { section in
let header: String = nameForSectionHeader(sectionID: section.id)
Section(header: Text(header)) {
ForEach(section) { card in
NavigationLink(destination: CardView(card: card)) {
VStack(alignment: .leading) {
if let name = card.name, let id = card.cardID {
Text("\(id) - \(name)")
}
if let set = card.set, let setName = set.name {
Text("Set: \(setName)")
}
if card.owned > 0 {
Text("Owned: \(card.owned)")
}
}
}
}
}
}
.listRowBackground(lightGreen)
}
Post not yet marked as solved
I have a list view created from core data, and it's sectioned by a property called favourite. In the detail view a user is able to either add an item or remove it as a favourite.
When the property is updated, it causes the detail view to pop back to the list view, which I don't want it to do, and don't know how to get it to not do that
The creation of the list
@SectionedFetchRequest var dims: SectionedFetchResults<Int16, DIM>
init() {
_dims = SectionedFetchRequest<Int16, DIM>(
sectionIdentifier: \.favourite,
sortDescriptors: [NSSortDescriptor(keyPath: \DIM.favourite, ascending: false), NSSortDescriptor(keyPath: \DIM.name, ascending: true)]
)
}
List {
ForEach(dims) { section in
let header: String = nameForSectionHeader(sectionID: section.id)
Section(header: Text(header)) {
ForEach(section) { dim in
NavigationLink(destination: DIMListView(dim: dim)) {
}
}
}
}
}
and then on the detail view there's a toolbar with an option to add/remove favourite.
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
Button("Options") {
showingAlertFav = true
}
.alert("Choose an option", isPresented: $showingAlertFav) {
if dim.favourite == 0 {
Button("Favourite", role: .none) {
setFav(fav: 1)
}
} else {
Button("Unfavourite", role: .none) {
setFav(fav: 0)
}
}
}
}
}
func setFav(fav : Int16) {
dim.favourite = fav
saveContext()
}
Post not yet marked as solved
Xcode keeps complaining about changes when I try and commit, I get the error "The local repository is out of date."
When I try and pul changes from the remote, I get the message "Your local repository has uncommitted changes that need to be stashed before you can continue. "
When I try and commit, every time it shows a UserInterfaceState.xcuserstate file. if I try and commit it I get the local repository error.
Post not yet marked as solved
I'm looking to see if its possible to change the background colour of a cell, but fill it based on a percentage
I'm creating the cell in a List {}
let gradient = LinearGradient(colors: [.green, .white], startPoint: .leading, endPoint: .trailing)
List {
Section(header: Text("Total")) {
Text("Total Obtained: \(totalObtained) - \(totalComplete)%")
.listRowBackground(gradient)
}
}
totalComplete has the percentage variable
Post not yet marked as solved
I'm currently using a navigationview and am now getting an warning
'init(destination:tag:selection:label:)' was deprecated in iOS 16.0: use NavigationLink(value:label:) inside a List within a NavigationStack or NavigationSplitView
I'm trying to move to another view from a button (there will be several hence using tags) but I can't seem to get my head around how to do it.
The code I currently have
var body: some View {
List {
NavigationLink(destination: ProjectColourAddView(project: project), tag: 1, selection: $action) {
EmptyView()
}
Group {
Button(action: { self.showImageMenu = true }) {
Text("New Title Image")
}
.confirmationDialog("Select Image Source", isPresented: $showImageMenu, titleVisibility: .visible) {
Button("Take Photo") {
self.isShowCamera = true
}
Button("Choose from Albums") {
self.isShowPhotoLibrary = true
}
}
Button(action: {
self.action = 3
NSLog("More Images")
}) {
Text("More Images (x)")
}
Button(action: {
self.action = 2
NSLog("Add Image")
}) {
Text("Add Image")
}
Button(action: {
self.action = 1
NSLog("Colour List")
}) {
Text("Colour List")
}
}
}
}
Post not yet marked as solved
My App does some importing when its first setup. I have it set to store core data in cloud kit.
My issue is if you run it on one device, everything imports fine. Run it on a second, and it will import for a second time, duplicating the records.
I'm trying to see if there's a way of checking if there is anything in cloud kit before running the import, but I'm always getting back false, even if I know there are records.
The code I'm using to check is
NSLog("Existance Check")
checkIfExistsInCloudKit() { (result) in
print(result)
if result == false {
NSLog("Does Not Exist")
//let ImportData : ImportData = ImportData(viewContext: viewContext)
//ImportData.importAll()
} else {
NSLog("Does Exist")
}
}
NSLog("Existance Check Complete")
and the function is
func checkIfExistsInCloudKit(_ completion: @escaping (Bool) -> ()) {
var result = false
let container = CKContainer(identifier: "******")
let privateDB = container.privateCloudDatabase
let predicate = NSPredicate(format: "CD_brand = %@", "DMC")
let query = CKQuery(recordType: "CD_Colour", predicate: predicate)
privateDB.perform(query, inZoneWith: nil) { records, error in
//guard let records = records else { return }
result = true
}
completion(result)
}
2023-04-15 14:07:28.092262+0100 Stitchers Companion[4553:113693] Existance Check
false
2023-04-15 14:07:28.092897+0100 Stitchers Companion[4553:113693] Does Not Exist
2023-04-15 14:07:28.092962+0100 Stitchers Companion[4553:113693] Existance Check Complete
Post not yet marked as solved
I'm trying to change the background colour of a row in a list based on a value
I have an Int16 value stored in card.owned and I want to change the background if this value is above 0, otherwise use the normal background.
Previously with a table view I could change it with the cellForRowAtIndexPath method, but not sure how to do it with SwiftUI without changing every row
Currently I have
ForEach(cards) { section in
let header: String = nameForSectionHeader(sectionID: section.id)
Section(header: Text(header)) {
ForEach(section) { card in
NavigationLink(destination: CardView(card: card)) {
VStack(alignment: .leading) {
if let name = card.name, let id = card.cardID {
Text("\(id) - \(name)")
}
if let set = card.set, let setName = set.name {
Text("Set: \(setName)")
}
if card.owned > 0 {
Text("Owned: \(card.owned)")
}
}
}
}
}
}
.listRowBackground(lightGreen)
}
I have the below code for my view's body
Currently when I go to the ItemDetailView View and then press back to return to this view, the filtered list is no longer there, it's back the full view. How to I get it to keep the filtered list when I go back? The text is still in the search bar
NavigationLink(destination: ItemAddView(series: series), isActive: $noItemsShowing) { EmptyView() }
List {
ForEach(items) { item in
NavigationLink(destination: ItemDetailView(item: item)) {
Text(fullItemName(item: item))
}
}
}
.searchable(text: $searchText)
.onSubmit(of: .search) {
items.nsPredicate = NSPredicate(format: "series = %@", series)
if(!searchText.isEmpty) {
items.nsPredicate = NSPredicate(format: "series = %@ AND amount > 0 AND name CONTAINS[cd] %@", series, searchText)
}
}
.onChange(of: searchText) { _ in
items.nsPredicate = NSPredicate(format: "series = %@", series)
if(!searchText.isEmpty) {
items.nsPredicate = NSPredicate(format: "series = %@ AND amount > 0 AND name CONTAINS[cd] %@", series, searchText)
}
}
.navigationBarTitle("\(series.name ?? "Error") Items", displayMode: .inline)
}
Post not yet marked as solved
I'm currently sharing data between devices using core data and cloud kit.Currently I have a "Picture" entity which stores the filename, the date it was added and a relation to another entity.The details in core data successfully syncs, how would I go about syncing the image file. The file is saved in the documents folder and I can get its file path usinglet imagePath = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString).appendingPathComponent(imageName)Research seems to show I need to use CKAsset to upload/download the file but how do I go about doing this?
Desbrina.