Build the options form.
Overrides ArgumentPluginBase::buildOptionsForm
public function buildOptionsForm(&$form, &$form_state) {
parent::buildOptionsForm($form, $form_state);
// allow + for or, , for and
$form['break_phrase'] = array(
'#type' => 'checkbox',
'#title' => t('Allow multiple values'),
'#description' => t('If selected, users can enter multiple values in the form of 1+2+3 (for OR) or 1,2,3 (for AND).'),
'#default_value' => !empty($this->options['break_phrase']),
'#fieldset' => 'more',
);
$form['add_table'] = array(
'#type' => 'checkbox',
'#title' => t('Allow multiple filter values to work together'),
'#description' => t('If selected, multiple instances of this filter can work together, as though multiple values were supplied to the same filter. This setting is not compatible with the "Reduce duplicates" setting.'),
'#default_value' => !empty($this->options['add_table']),
'#fieldset' => 'more',
);
$form['require_value'] = array(
'#type' => 'checkbox',
'#title' => t('Do not display items with no value in summary'),
'#default_value' => !empty($this->options['require_value']),
'#fieldset' => 'more',
);
$this->helper
->buildOptionsForm($form, $form_state);
}