CODEWITHSUNDEEP
iosarraysswiftmodelcodable
Tekhe
Tekhe

Reputation: 149

Finding specific item and change value in model - Swift

I am trying to change value or update value in model but for some unknown reason it's not updating value. I have accurately found the row by matching id's but after that value is not updating. I want to update bgColor in Item model.

Deceleration: var AppDetailData : AppointmentDetail?

My Code:

for var i in AppDetailData?.sectionList ?? [] {
                for j in i.items ?? [] {
                    
                    if let row = i.items?.firstIndex(where: {$0.unitId == id}) {
                        i.items?[row].bgColor = "yellow"
                    }
                }
            }

JSON Model:

struct AppointmentDetail : Codable {
    
    let projectId : Int?
    let projectName : String?
    let projectNo : String?
    let projectType : String?
    let sectionList : [SectionList]?
    
}

struct SectionList : Codable {
    
    let title : String?
    var sectionId: Int?
    var items : [Item]?
}

struct Item : Codable {
    var bgColor : String?
    var unitId : Int?
    var latitude : Double?
    var longitude : Double?
    }

Upvotes: 0

Views: 1044

Answers (2)

Joakim Danielson
Joakim Danielson

Reputation: 51972

Assuming you change your array properties to be var declared and not optional and the unitId (all *Id properties really) to non optional you can use the following

for (index, appointment) in appointments.enumerated() {
    for (index1, section) in appointment.sectionList.enumerated() {
        if let index2 = section.items.firstIndex(where: {$0.unitId == id}) {
            appointments[index].sectionList[index1].items[index2].bgColor = "yellow"
        }
    }
}

Upvotes: 1

goat_herd
goat_herd

Reputation: 589

Because your model is define as Struct, so to modify you must call AppDetailsData..... to change. For example: change your sectionList variable from let to var, and change your code with this

        guard let list = AppDetailData?.sectionList else {
            return
        }
        if let index = list.firstIndex(where: {$0.items?.first?.unitId == 1}) {
            AppDetailData?.sectionList?[index].items?[0].bgColor = "yeallow"
        }

Upvotes: 0

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