Widget Caching

Add cache information to your widget definition

An example of a widget without caching.

/**
 * hook vsite_widgets
 */
function mymodule_vsite_widgets(){
  $items = array();
  $items['mymodule-block5'] = array(
        'module' => 'mymodule',
        'delta' => 'block5',
        'weight' => -21,
        'region' => false,
        'label' => 'Latest Things',
      );
  return $items;
}

With caching.

/**
 * hook vsite_widgets
 */
function mymodule_vsite_widgets(){
  $items = array();
  $items['mymodule-block5'] = array(
        'module' => 'mymodule',
        'delta' => 'block5',
        'weight' => -21,
        'region' => false,
        'label' => 'Latest Things',
        'cache' => BLOCK_CACHE_CONTENT_CACHE,
        'cache_keys' => array(
          'node' => array('node_type' => 'node_type'),
          'os_og' => array('current' => 'current'),
        ),
      );
  return $items;
}

Where 'cache' defines the type of caching to use, currently 'BLOCK_CACHE_CONTENT_CACHE' is the only option.

'cache_keys' defines when the cache for this block should be cleared. In the example above the cache will be cleared any time a node of type 'node_tpye' is saved within the current site. For more information on avalible keys see the "Views content cache" module.