Select2 Ajax Laravel - results not showing - php

Question

JS
$("#location").select2({
ajax: {
url: "/search/locations",
dataType: 'json',
delay: 250,
data: function (params) {
return {
q: params.term, // search term
};
},
processResults: function (data) {
return {
results: data
};
},
cache: true
},
minimumInputLength: 1,
placeholder: function(){
$(this).data('placeholder');
}
});
Controller
public function searchLocations()
{
$q = Input::get('q');
$results = Location::where('suburb', 'LIKE', '%'. $q . '%')
->orWhere('state', 'LIKE', '%'. $q . '%')
->orWhere('postcode', 'LIKE', '%'. $q . '%')
->get();
return Response::json( $results );
}
I can see the ajax request being made, and recieving data back, but it doesn't show the results. I'm using the latest version of Select2 (v4.0.2)

Answer 1

When you're loading custom data from a remote source, Select2 doesn't typically know what to do with them. You'll need to specify how each result is formatted by setting a templateSelection for the options and a templateResult for the selected option like so:
function locationResultTemplater(location) {
return location.suburb + " " + location.state + " " + location.postcode;
}
function locationSelectionTemplater(location) {
if (typeof location.suburb !== "undefined") {
return locationResultTemplater(location);
}
return location.text; // I think its either text or label, not sure.
}
$("#location").select2({
ajax: {
url: "/search/locations",
dataType: 'json',
delay: 250,
data: function (params) {
return {
q: params.term, // search term
};
},
processResults: function (data) {
return {
results: data
};
},
cache: true
},
minimumInputLength: 1,
placeholder: function(){
$(this).data('placeholder');
},
templateResult: locationResultTemplater,
templateSelection: locationSelectionTemplater
});
Note that in order to return HTML mark-up instead just plain text you'll need to have the template function return a jQuery object selector e.g. return $("<div class='styleme'>Content</div>);