Column sort doesn't work with get function

[tcjr]

Given this data:

  var data = [
    { first: "Bob", last: "Barker", age: 89 },
    { first: "Vanna", last: "White", age: 55 },
    { first: "Pat", last: "Sajak", age: 65 }
  ]; 

And this columns definition:

  [
     { label: "Name", get: function(d){ return d.first + ' ' + d.last; } },
     { label: "Age", field: "age" }
  ]

The grid displays properly, but the "Name" column is not sortable. The asc/desc sort triangle flips, but the rows do not sort.

[ghost]

The thing is, sorting happens against the data (or store, if one is involved), whereas get happens during the rendering process which is later in the chain of events. However, there's nothing preventing you from also specifying a field to your column definition with a custom getter, like so:

[
  { label: "Name", field: "first", get: function(d){ return d.first + ' ' + d.last; } },
  { label: "Age", field: "age" }
]

Sort directly correlates to columns' designated fields, so this will have the effect of sorting by first name when you click the Name column's header, even though your get function results in a more aggregated form of data being displayed. (Alternatively, if you'd like it to sort by last name instead, you could naturally specify field: "last" there instead.)

Sorry for the delay on this reply. Let us know if you have any other related questions; otherwise we can close this out. Thanks!

[tcjr]

The data I used in the issue was just illustrative. The actual usage I have is more like this:

var data = [
    { name: "Bob", total: 10, correct: 7 },
    { name: "Vanna", total: 12, correct: 11 },
    { name: "Pat", total: 6, correct: 6 }
  ];

  [
    { label: "Name", field: "name" },
    { label: "Average", get: function(d){ return Math.round(d.correct/d.total) + "%"; } }
  ]

There is obviously no field I can specify to get the desired order. I am working around it by modifying the underlying data to have an additional column.

Perhaps the sort arrows shouldn't be present if the data cannot be sorted (that is, if a 'field' has not been specified in the column definition.)

[ghost]

Good point RE disabling sort for fieldless columns; I've fixed that in 4b55763.