JQuery CSV Autocomplete

csv_autocomplete

/* Symptoms */
// shuttlebox : http://blog.jeremymartin.name/2008/02/easy-multi-select-transfer-with-jquery.html
// another shuttlebox : http://stackoverflow.com/questions/4255946/dynamic-shuttlebox-implementation-using-javascript
function split(val) {
    return val.split(/,\s*/);
}

function extractLast(term) {
    return split(term).pop();
}
$("#symptoms")
// don't navigate away from the field on tab when selecting an item
.bind("keydown", function (event) {
        if (event.keyCode === $.ui.keyCode.TAB &&
            $(this).data("ui-autocomplete").menu.active) {
            event.preventDefault();
        }
    })
    .autocomplete({
        minLength: 1,
        source: function (request, response) {
            $.getJSON(viprDemoURL + "/search/symptoms", {
                    term: extractLast(request.term)
                }, response);
        },
        search: function () {
            // custom minLength
            var term = extractLast(this.value);
            if (term.length < 2) {
                return false;
            }
        },
        focus: function () {
            // prevent value inserted on focus
            return false;
        },
        select: function (event, ui) {
            var terms = split(this.value);
            // remove the current input
            terms.pop();
            // add the selected item
            terms.push(ui.item.value);
            // add placeholder to get the comma-and-space at the end
            terms.push("");
            this.value = terms.join(", ");
            symptomsList.push({
                    "reference": ui.item.id
                });
            console.log("Added symptom " + ui.item.id + "; symptoms are " + JSON.stringify(symptomsList));
            return false;
        }
    });