chamilo / chamilo-lms

     * @param bool   $required

     * @param array  $attributes

     */

    public function addDateRangePicker($name, $label, $required = true, $attributes = array())

    {

        $this->addElement('date_range_picker', $name, $label, $attributes);

        $this->addElement('hidden', $name.'_start');

        $this->addElement('hidden', $name.'_end');

        if ($required) {

            $this->addRule($name, get_lang('ThisFieldIsRequired'), 'required');

        }

    }

    /**

     * @param string $name

     * @param bool $required Optional. Is the form-element required (default=true)

     * @param array $attributes Optional. List of attributes for the form-element

     */

    public function addUrl($name, $label, $required = true, $attributes = array())

    {

        $this->addElement('url', $name, $label, $attributes);

        $this->applyFilter($name, 'trim');

        $this->addRule($name, get_lang('InsertAValidUrl'), 'url');

        if ($required) {

            $this->addRule($name, get_lang('ThisFieldIsRequired'), 'required');

        }

    }

    /**

     * Adds a text field for letters to the form.