SwiftUI: Missing argument for parameter 'x' in call - mvvm

Question

My content view has a StateObject to a data model "Pilot." The complier generates an error of "Missing argument for parameter 'pilot' in call. Xcode offers the following fix: var pilot = Pilot(pilot: [Employee])... however, the complier generates a new error on that fix: "Cannot convert value of type '[Employee].Type' to expected argument type '[Employee]'"
Here is my Content View:
struct ContentView: View {
#StateObject var pilot = Pilot(pilot: [Employee])
var body: some View {
NavigationView {
ZStack {
Color.gray.ignoresSafeArea()
.navigationBarHidden(true)
TabView {
ProfileFormView()
.tabItem {
Image(systemName: "square.and.pencil")
Text("Profile")
}
EmployeeView()
.tabItem {
Image(systemName: "house")
Text("Home")
}
.padding()
}
.environmentObject(pilot)
}
}
}
}
Here is my data model:
class Employee: Identifiable, Codable {
var id = UUID()
var age: Int
var yearGroup: Int
var category: String
init(age: Int, yearGroup: Int, category: String) {
self.age = age
self.yearGroup = yearGroup
self.category = category
}
struct Data {
var age: Int = 35
var yearGroup: Int = 1
var category: String = ""
}
var data: Data {
Data(age: age, yearGroup: yearGroup, category: category)
}
}
#MainActor class Pilot: ObservableObject {
#Published var pilot: [Employee]
init(pilot: [Employee]) {
self.pilot = pilot
}
}
class Data: Employee {
static let sampleData: [Employee] = [
Employee(age: 35, yearGroup: 1, category: "B717")
]
}
I am also getting a similar compiler error in my Content view for the "Employee View()" which states: "Missing argument for parameter 'data' in call"
Here is my EmployeeView code:
struct EmployeeView: View {
#EnvironmentObject var pilot: Pilot
let data: [Employee]
var body: some View {
ZStack {
List {
ForEach(data) {line in
EmployeeCardView(employee: line)
}
}
}
}
}
/// UPDATE1 ///
I tried to pass an instance of Employee to Pilot but I've hit a new wall. Here is my new code.
Here is my data model:
struct Employee: Identifiable, Codable {
var id = UUID()
var age: Int
var yearGroup: Int
var category: String
init(age: Int, yearGroup: Int, category: String) {
self.age = age
self.yearGroup = yearGroup
self.category = category
}
struct UserInfo {
var age: Int = 35
var yearGroup: Int = 1
var category: String = ""
}
var userInfo: UserInfo {
UserInfo(age: age, yearGroup: yearGroup, category: category)
}
}
#MainActor class Pilot: ObservableObject {
#Published var pilot: [Employee]
init(pilot: [Employee]) {
self.pilot = pilot
}
let pilotInfo = Employee(age: 35, yearGroup: 1, category: "B717")
}
And here is my Content view:
struct ContentView: View {
#StateObject var pilot = Pilot(pilotInfo) //<error here>
Now getting an error in the Content view: "Cannot find 'pilotInfo' in scope"
/// UPDATE 2 ///
I removed the UserInfo section of the model data and followed the guidance to take one Employee (not an array) and change the Content view variable. That fixed those associated errors.
In an effort to comply with principles outlined in developer.apple.com/tutorials/app-dev-training/displaying-data-in-a-list, I've tried to match the following from Apple's tutorial:
struct ScrumsView: View {
let scrums: [DailyScrum]
var body: some View {
List {
ForEach(scrums, id: \.title) { scrum in
CardView(scrum: scrum)
.listRowBackground(scrum.theme.mainColor)
}
}
}
}
That's why my Employee view looks like this:
struct EmployeeView: View {
#EnvironmentObject var pilot: Pilot
let userInfo: [Pilot]
var body: some View {
ZStack {
List {
ForEach(userInfo, id: \.age) {line in //ERRORs
EmployeeCardView(employee: line)
}
}
}
}
}
The complier errors are:
Cannot convert value of type '[Pilot]' to expected argument type 'Binding'
Generic parameter 'C' could not be inferred
Key path value type '' cannot be converted to contextual type ''
///UPDATE 3///
struct ProfileFormView: View {
#EnvironmentObject var pilot: Pilot
#StateObject var vm: EmployeeViewModel = EmployeeViewModel()
var body: some View {
NavigationView {
Form {
Section(header: Text("Personal Information")) {
DatePicker("Birthdate", selection: $vm.birthdate, displayedComponents: .date)
DatePicker("New Hire Date", selection: $vm.newHireDate, displayedComponents: .date)
Picker("Your Current Aircraft", selection: $vm.chosenAircraft) {
ForEach(vm.currentAircraft, id: \.self) {
Text ($0)
}
}
}
}
}
}
}
As you can see, my first attempt was much more complex but since I could not get my previous version views to take user input updates, I decided to start over with a more basic app to better learn the fundamentals of data management.