Implements hook_field_load().
function field_test_field_load($entity_type, $entities, $field, $instances, $langcode, &$items, $age) {
$args = func_get_args();
field_test_memorize(__FUNCTION__, $args);
foreach ($items as $id => $item) {
// To keep the test non-intrusive, only act for instances with the
// test_hook_field_load setting explicitly set to TRUE.
if (!empty($instances[$id]['settings']['test_hook_field_load'])) {
foreach ($item as $delta => $value) {
// Don't add anything on empty values.
if ($value) {
$items[$id][$delta]['additional_key'] = 'additional_value';
}
}
}
}
}