New column created from Object datatype

Hello. This will be sound more like question than issue. So sorry in advance for posting this here How I able to create new column with value from Object ? Code of my setting and data below for more clearly understanding private settings = {

columns: {
      firstName: {
        title: 'First name',
        type: 'text'
      },
      lastName: {
        title: 'Last name',
        type: 'text'
      },
      userType: {  
        // This is correct way only when there is string in response from API named - userType
        // But when I'm trying to type something like - userType.value i get an error 
        title: 'User type',
        type: 'text'
      },
}

data from API:

.......
    {
      firstName: 'Jacob',
      lastName: '',
      middleName: '',
      userType: {value: 'superAdmin', display: 'Super Administrator'},
      login: '',
      password: '',
      phoneNumber: '066-233-77-34',
      city: 'Roma',
      address: 'someStreet',
      salary: '0',
    },
......

[SantaUA]

@yadoble sure

private settings = {
    hideHeader: true,
    columns: {
      EntryDate: {
        title: 'Date',
        type: 'text',
        valuePrepareFunction: (value) => {
          return this.transformDate(value);
        },
        filterFunction: (value, search) => {
          let match = this.transformDate(value).indexOf(search) > -1
          if (match || search === '') { return true; }
          else { return false; }
        }
      }
}

methods:

  transformDate(value) {
    let newValue;
    newValue = this.datePipe.transform(value, 'dd.MM.yyyy');
    return newValue;
  }

Here is are a few important things:

• valuePrepareFunction() change value for for view on html
• filterFunction() for working filter after value was changed Why ? because ngSmartTable filter will sort column by value from your js code, not for view data Exp: if you will have data by ID and change view to name be ID(ID: 1 will be changed to NY) filter will working by ID not the view data if you won’t use the custom filter func

[SantaUA]

@KostyaDanovsky The night brings counsel ☺️ I got an idea invoke myCustomFunc in valuePrepareFunction. By myCustomFunc I parse value and return what should be