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function hook_field_purge_instance in Drupal 7

Acts when a field instance is being purged.

In field_purge_instance(), after the field instance has been removed from the database, the field storage module has had a chance to run its hook_field_storage_purge_instance(), and the field info cache has been cleared, this hook is invoked on all modules to allow them to respond to the field instance being purged.

Parameters

$instance: The instance being purged.

Related topics

Field CRUD API
Create, update, and delete Field API fields, bundles, and instances.
Hooks
Allow modules to interact with the Drupal core.
1 invocation of hook_field_purge_instance()
field_purge_instance in modules/field/field.crud.inc
Purges a field instance record from the database.

File

modules/field/field.api.php, line 2651
Hooks provided by the Field module.

Code

function hook_field_purge_instance($instance) {
  db_delete('my_module_field_instance_info')
    ->condition('id', $instance['id'])
    ->execute();
}