Data struct not working

Question

Infinite_Loop OP

Created Oct ’21

Replies 6

Boosts 0

Participants 4

Hi! I'm very new to swift and I was having an issue with using data from a data model.

struct Orchard: Identifiable {

    var id = UUID()

    var title: String

    var category: String

    var year: String

    var itemID: Int

    var imageName: String

    var bannerName: String

}

let orchardData: [Orchard] = [

    Orchard(title: "iPhone 12", category: "iPhone", year: "2020", itemID: 1001, imageName: "iphone_12", bannerName: "iphone_12_wallpaper"),

    Orchard(title: "iPhone 12 Pro", category: "iPhone", year: "2020", itemID: 1002, imageName: "iphone_12_pro", bannerName: "iphone_12_pro_wallpaper"),

    Orchard(title: "iPhone 11", category: "iPhone", year: "2019", itemID: 1003, imageName: "iphone_11", bannerName: "iphone_11_wallpaper"),

    Orchard(title: "iPhone 11 Pro", category: "iPhone", year: "2019", itemID: 1004, imageName: "iphone_11_pro", bannerName: "iphone_11_pro_wallpaper"),

    Orchard(title: "iPhone XS", category: "iPhone", year: "2018", itemID: 1005, imageName: "iphone_xs", bannerName: "iphone_xs_wallpaper"),

    Orchard(title: "iPhone SE 2nd Gen", category: "iPhone", year: "2020", itemID: 1006, imageName: "iphone_8", bannerName: "iphone_se_2_wallpaper")

]

I get the error "Global 'var' declaration requires an initializer expression or an explicitly stated getter"

Any help would be greatly appreciated, thanks!

Answered by Claude31 in 690025022

Declare as optional:

var orchard: Orchard?

to solve first error.

Note: photos are great, but code itself is easier to use.

For the second, remove the parameter. You can also declare orchard inside ContentView:

struct ContentView: View {
    @State var orchard: Orchard?

Boost

Answer 1

workingdogintokyo OP

Oct ’21

could you show how you use these, and where/what line you get the error. In other words show the surrounding context of this code. Is this in a View, in a function, etc...?

0

Answer 2

Infinite_Loop OP

Oct ’21

Thanks for responding! Here are some photos https://imgur.com/a/KKXbUMy

I'm trying to add it to a file so I can use the data to dynamically update the UI

0

Answer 3

OOPer OP

Oct ’21

Seems you have not shown all the code you get the error you described. Please do not hesitate to show the whole code, I guess it may be less than a few hundreds of lines.

0

Answer 4

workingdogintokyo OP

Oct ’21

Concur, you do not show enough of your code.

So I can only guess at your issues.

You use ContentView(orchard: Orchard[0]) in ContentView_Previews, note carefully the uppercase Orchard[0]. This is wrong, Orchard is a type not an instance and not an array. It should at least be lowercase, orchard[0]. The other error you get is because you have "var orchard: Orchard " outside of any function or View or class. You cannot declare a variable without initialising, if it's not part of a class/struct etc..

0

Answer 5

Infinite_Loop OP

Oct ’21

Here are some photos of the full thing https://imgur.com/a/Z30HsHC

I really appreciate the help!

0

Answer 6

Claude31 OP

Oct ’21

Accepted Answer

Declare as optional:

var orchard: Orchard?

to solve first error.

Note: photos are great, but code itself is easier to use.

For the second, remove the parameter. You can also declare orchard inside ContentView:

struct ContentView: View {
    @State var orchard: Orchard?

1