$this->widgetSchema['drugs'] = new sfWidgetFormDoctrineJQueryAutocompleter(array(
            'label'     => 'Médicament',
            'model'     => 'Drug',
            'method'    => '__toString',
            'url'       => sfContext::getInstance()->getRouting()->generate('drug_autocomplete'),
            'config'    => '{ max: 100 }'
        ),
        array(
            'size'     => 50
        ));

// Erreur js retournee:
/*
jQuery("#autocomplete_pillbox_drugs").autocomplete("/frontend_dev.php/drug/autocomplete", jQuery.extend({}, {dataType: "json", parse: function (data) {var parsed = [];for (key in data) {parsed[parsed.length] = {data: [data[key], key], value: data[key], result: data[key]};}return parsed;}}, {max: 100})).result is not a function
[Break On This Error] (29 out of range 18)
jquery.min.js (line 29)
*/