WP posts arguments

  $args = array(
      'post_type' => array('programs', 'presets', 'samples', 'vst', 'vsti'),
      'post_status' => 'publish',
      'showposts' => '5',
      'date_query' => array(
        'after' => '- 1 week'
      ),
      'meta_key' => 'views',
      'orderby' => 'meta_value_num',
      'order' => 'DESC'
  );