Hi guys,

I am setting an optionsetfield in page's setting tab. As I save click save and publish it brings me back to the default option

$fields->addFieldsToTab('Root.Settings', array(
$options = OptionsetField::create('DisplayBanner', 'Display banner', array(
'1' => "Parent",
'2' => "Custom",
'3' => "Global"
), '1'),
DisplayLogicWrapper::create(
$banner = UploadField::create('Banner')
)->displayIf('DisplayBanner')->isEqualTo('2')->end()

));

It is not saving my option, thanks in advance

Try removing the 4th parameter from the OptionSet Field as that is setting the value to 1 every time.
OptionSet Field inherits the constructor form DropdownField which uses the 4th parameter as the value

    /**
     * @param string $name The field name
     * @param string $title The field title
     * @param array $source An map of the dropdown items
     * @param string $value The current value
     * @param Form $form The parent form
     * @param string|bool $emptyString Add an empty selection on to of the {@link $source}-Array (can also be
     *                  boolean, which  results in an empty string).  Argument is deprecated
     *                  in 3.1, please use{@link setEmptyString()} and/or
     *                  {@link setHasEmptyDefault(true)} instead.
     */