function hook_field_storage_delete_field

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

File

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

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);
}