function hook_field_attach_purge in Drupal 7

Act on field_purge_data().

This hook is invoked in field_purge_data() and allows modules to act on purging data from a single field pseudo-entity. For example, if a module relates data in the field with its own data, it may purge its own data during this process as well.

Parameters

$entity_type: The type of $entity; for example, 'node' or 'user'.

$entity: The pseudo-entity whose field data is being purged.

$field: The (possibly deleted) field whose data is being purged.

$instance: The deleted field instance whose data is being purged.

See also

Field API bulk data deletion

field_purge_data()

Related topics

1 invocation of hook_field_attach_purge()

field_purge_data in modules/field/field.crud.inc

Purges the field data for a single field on a single pseudo-entity.

File

modules/field/field.api.php, line 1475

Hooks provided by the Field module.

Code

function hook_field_attach_purge($entity_type, $entity, $field, $instance) {

  // find the corresponding data in mymodule and purge it
  if ($entity_type == 'node' && $field->field_name == 'my_field_name') {
    mymodule_remove_mydata($entity->nid);
  }
}