netbox/netbox/project-static/js/livesearch.js

$(document).ready(function() {
    var search_field = $('#id_livesearch');
    var real_field = $('#id_' + search_field.attr('data-field'));
    var select_fields = $('#select select');
    var search_key = search_field.attr('data-key');
    var label = search_field.attr('data-label');
    if (!label) {
        label = 'name';
    }

    // Update livesearch text when real field changes
    if (real_field.val()) {
        search_field.val(real_field.children('option:selected').text());
    }
    real_field.change(function() {
        if (real_field.val()) {
            search_field.val(real_field.children('option:selected').text());
        } else {
            search_field.val('');
        }
    });

    search_field.autocomplete({
        source: function(request, response) {
            $.ajax({
                type: 'GET',
                url: search_field.attr('data-source'),
                data: search_key + '=' + request.term,
                success: function(data) {
                    var choices = [];
                    $.each(data.results, function (index, choice) {
                        choices.push({
                            value: choice.id,
                            label: choice[label]
                        });
                    });
                    response(choices);
                }
            });
        },
        select: function(event, ui) {
            event.preventDefault();
            search_field.val(ui.item.label);
            select_fields.val('');
            real_field.empty();
            select_fields.attr('disabled', 'disabled');
            real_field.append($("<option></option>").attr('value', ui.item.value).text(ui.item.label));
            real_field.change();
            // Disable parent selection fields
            // $('select[filter-for="' + real_field.attr('name') + '"]').val('');
        },
        minLength: 4,
        delay: 500
    });

    search_field.change(function() {
        if (!search_field.val()) {
            select_fields.removeAttr('disabled');
            select_fields.val('');
        }
    });
});