function field_update_7001 in Drupal 7

Fix fields definitions created during the d6 to d7 upgrade path.

Related topics

File

modules/field/field.install, line 411

Install, update and uninstall functions for the field module.

Code

function field_update_7001() {
  $fields = _update_7000_field_read_fields();
  foreach ($fields as $field) {

    // _update_7000_field_create_field() was broken in d7 RC2, and the fields
    // created during a d6 to d7 upgrade do not correcly store the 'index'
    // entry. See http://drupal.org/node/996160.
    module_load_install($field['module']);
    $schema = (array) module_invoke($field['module'], 'field_schema', $field);
    $schema += array(
      'indexes' => array(),
    );

    // 'indexes' can be both hardcoded in the field type, and specified in the
    // incoming $field definition.
    $field['indexes'] += $schema['indexes'];

    // Place the updated entries in the existing serialized 'data' column.
    $data = db_query("SELECT data FROM {field_config} WHERE id = :id", array(
      ':id' => $field['id'],
    ))
      ->fetchField();
    $data = unserialize($data);
    $data['columns'] = $field['columns'];
    $data['indexes'] = $field['indexes'];

    // Save the new data.
    $query = db_update('field_config')
      ->condition('id', $field['id'])
      ->fields(array(
      'data' => serialize($data),
    ))
      ->execute();
  }
}