How do I find how many options there are for a select field?

Alchetec

I have the following field defined How do I get the number of options for the select? I'd like to hide the field if there is only 1.

$(document).ready(function() {
    var editor = new $.fn.dataTable.Editor( {
        ajax: 'php/PermissionToEnter.php',
        table: '#PermissionToEnter',
        fields: [
            {
                "label": "Unit",
                "name": "PermissionToEnter.unit",
                "type": "select2",
                "opts": {
                    theme: "classic"
                }
            },
.
.
.

Thanks!

allan

There isn't an API built into Editor for that - however, it is quite possible with a little jQuery to get the number of options:

var field = editor.field( 'PermissionToEnter.unit' );

if ( $('select > option', field.node().length < 2 ) {
  field.hide();
}
else {
  field.show();
}

Allan

edit I've just realised you are using select2. This may or may not work in that case - I'm not 100% certain what select2 does with the select element.

Alchetec

The following worked:

editor.one( 'open', function ( e, type ) {
    var field = editor.field( 'PermissionToEnter.unit' );
    
    if ( $('select > option', field.node()).length < 2 ) {
        field.hide();
    }
} );

a parenthesis was missing after field.nide :)

Thanks again!!!