function hook_field_storage_delete_field in Drupal 7

Act on deletion of a field.

This hook is invoked from field_delete_field() to ask the field storage module to mark all information stored in the field for deletion.

Parameters

$field: The field being deleted.

Related topics

2 functions implement hook_field_storage_delete_field()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

field_sql_storage_field_storage_delete_field in modules/field/modules/field_sql_storage/field_sql_storage.module

Implements hook_field_storage_delete_field().

field_test_field_storage_delete_field in modules/field/tests/field_test.storage.inc

Implements hook_field_storage_delete_field().

1 invocation of hook_field_storage_delete_field()

field_delete_field in modules/field/field.crud.inc

Marks a field and its instances and data for deletion.

File

modules/field/field.api.php, line 2134

Hooks provided by the Field module.

Code

function hook_field_storage_delete_field($field) {

  // Mark all data associated with the field for deletion.
  $field['deleted'] = 0;
  $table = _field_sql_storage_tablename($field);
  $revision_table = _field_sql_storage_revision_tablename($field);
  db_update($table)
    ->fields(array(
    'deleted' => 1,
  ))
    ->execute();

  // Move the table to a unique name while the table contents are being deleted.
  $field['deleted'] = 1;
  $new_table = _field_sql_storage_tablename($field);
  $revision_new_table = _field_sql_storage_revision_tablename($field);
  db_rename_table($table, $new_table);
  db_rename_table($revision_table, $revision_new_table);
  drupal_get_schema(NULL, TRUE);
}