I have a UserModel in my app which has an array of EntryModel. Whilst all the entry types will have the same properties I do want them to be of specific entry types that make them unique from each other and that then automatically get given a specific colour to match their type. I then want each specific entry type to always display in its respective colour throughout the app.

This is what I have done so far:

@Model
class EntryModel {

var who: UserModel
var what: String
var note: String
@Attribute(.externalStorage) var image: [Data]?
var when: Date = Date.now

Initially I had a separate enum which broke down entry types into different possible cases which would then return custom colours. This enum was declared outside of the class but in the same file, as such:

enum EntryType: String, CaseIterable, Identifiable, Codable {
   case appointment = "appointment"
   case measurement = "measurement"

   var color: Color {
      switch self {
          case .appointment:
              return Color.customOrange

          case .measurement:
              return Color.customPurple
      }

I then created a view for the Entry but was unable to get the custom colours to show up.

So my two questions would be as such:

1. How would I make it so that each EntryModel can get given a specific entry type and thus it's assigned colour.
2. How do I then attach those colours to views that display those entries?

Thanks in advance for your help.

I have a UserModel in my app which has an array of EntryModel. Whilst all the entry types will have the same properties I do want them to be of specific entry types that make them unique from each other and that then automatically get given a specific colour to match their type. I then want each specific entry type to always display in its respective colour throughout the app.

This is what I have done so far:

@Model
class EntryModel {

var who: UserModel
var what: String
var note: String
@Attribute(.externalStorage) var image: [Data]?
var when: Date = Date.now

Initially I had a separate enum which broke down entry types into different possible cases which would then return custom colours. This enum was declared outside of the class but in the same file, as such:

enum EntryType: String, CaseIterable, Identifiable, Codable {
   case appointment = "appointment"
   case measurement = "measurement"

   var color: Color {
      switch self {
          case .appointment:
              return Color.customOrange

          case .measurement:
              return Color.customPurple
      }

I then created a view for the Entry but was unable to get the custom colours to show up.

So my two questions would be as such:

1. How would I make it so that each EntryModel can get given a specific entry type and thus it's assigned colour.
2. How do I then attach those colours to views that display those entries?

Thanks in advance for your help.

• swiftui
• swiftdata

• So you mean, remove the var color from the enum and place an @Transient var color computed property into the EntryModel directly which contains the switch statement on the colours to use? – user30115770 Commented yesterday
• Sorry, I was just updating my comment. No, leave the var color: Color {...} in your EntryType. Then in your EntryModel add var type: EntryType and that is it. The color part of the EntryType is a computed property and so will not be stored by SwiftData, and that is what you want. No need for @Transient. Wherever you want the color, just use it, for example .background(entry.type.color) and it will work. Note, remove the Identifiable from EntryType, not required. – workingdog support Ukraine Commented yesterday
• Just updated my code. Works beautifully. Thanks so much for the help. – user30115770 Commented yesterday

1 Answer 1

Color is a View, it does not belong in a model.

You can use UIColor, RGB values, Hex values or any other data type that represents what makes a Color.

In your case you can add a variable to the model.

class EntryModel {

    var who: UserModel
    var what: String
    var note: String
    @Attribute(.externalStorage) var image: [Data]?
    var when: Date = Date.now
    var type: EntryType

It should work if you add Codable to EntryType.