For the title field,I want to return node.title,but what I tried is not working:
return array('og' => array('name' => 'og',
'join' => array('left' => array('table' => 'node',
'field' => 'nid'
),
'right' => array('field' => 'nid'
),
),
'fields' => array(
'title' => array('name' => t('OG: Group: Group name'),
'table' => 'node',
'handler' => 'og_handler_field_title',
'help' => t('show group name.'),
'sortable' => true,
'sort_handler' => 'views_og_query_ogname',
'notafield' => false,
),