如果数据类型从字符串更改为布尔数据存储，则会引发错误

Question

I am storing my struct values in google data store. Here is my struct:

type Appointment struct {
    ID                    string 
    Appointment Date      string 
    Start Time            string 
    End Time              string 
    Select Specialization string 
    Smoking Status        string
} 

I have stored some data using datastore, but later changed the data type from string to bool for the field "Smoking Status" then the data store is throwing an error:

{"error":{"message":"data store: cannot load field \\"Smoking Status\\" into a \\"simplysthealth.Encounter\\": type mismatch: string versus bool"}}

Is there any feasible solution for this?

Answer 1

package main

// I have corrected all of your method names
type Appointment struct {
        ID                   string
        AppointmentDate      string
        StartTime            string
        EndTime              string
        SelectSpecialization string
        SmokingStatus        string
}

type AllOldData struct {
        Data []Appointment
}
type FixedAppointment struct {
        ID                   string
        AppointmentDate      string
        StartTime            string
        EndTime              string
        SelectSpecialization string
        SmokingStatus        bool
}

type FixedData struct {
        Data []FixedAppointment
}

func TypeFixing() FixedData {

        var OldData AllOldData
        var NewData FixedData

        OldData = GetYourAllOldData()

        for i, v := range OldData.Data {
                if v.SmokingStatus == "true" {
                        // other value exchanging
                        NewData.Data[i].SmokingStatus = true
                } else {
                        // other value exchanging
                        NewData.Data[i].SmokingStatus = false
                }
        }

        return NewData // Save the data in a new table or whatever you call it

}

func GetYourAllOldData() AllOldData {
        // A function that returns all old data
        return AllOldData{} // You must return return your all data
}

This is what you need to do it manually!