Select2 add image icon to option dynamically

Question

This is what select2.github.io gives you:

function addIcons(opt) {
    if (!opt.id) {
        return opt.text;
    }
    var $opt = $(
            '<span><img src="/images/flags/' + opt.element.value.toLowerCase() + '.png" class="img-flag" /> ' + opt.text + '</span>'
            );
    return $opt;
}

I'd like to add a data-image attribute to my options:

<option value="flag" data-image="/images/flags/flag.png">Country 1</option>

and log it in the function:

function addIcons(opt) {
    if (!opt.id) {
        return opt.text;
    }

    var optimage = opt.attr('data-image');
    var $opt = $(
            '<span><img src="/images/flags/' + optimage + '" class="img-flag" /> ' + opt.text + '</span>'
            );
    return $opt;
}

Sadly, a simple console.log(opt); doesn't return anything in the function, so I can't see if I can access my data-image attribute. The above block of code returns an error, so this obviously doesn't work. Any suggestions on this matter?

Answer 1

If optimage returns "undefined" try my sample: its working fine:

$("#selectUserForChat").select2({
		templateResult: addUserPic,
        templateSelection: addUserPic
});
	
function addUserPic (opt) {
	if (!opt.id) {
		return opt.text;
	}               
	var optimage = $(opt.element).data('image'); 
	if(!optimage){
		return opt.text;
	} else {
		var $opt = $(
		'<span class="userName"><img src="' + optimage + '" class="userPic" /> ' + $(opt.element).text() + '</span>'
		);
		return $opt;
	}
};