function nodereference_update_6000 in Content Construction Kit (CCK) 6.2

Same name and namespace in other branches

1. 6.3 modules/nodereference/nodereference.install \nodereference_update_6000()
2. 6 modules/nodereference/nodereference.install \nodereference_update_6000()

All fields must allow NULL values to indicate empty fields.

File

modules/nodereference/nodereference.install, line 47

Implementation of hook_install().

Code

function nodereference_update_6000(&$sandbox) {
  include_once './' . drupal_get_path('module', 'content') . '/content.install';
  drupal_load('module', 'content');
  $ret = array();
  if (!isset($sandbox['progress'])) {
    if ($abort = content_check_update('nodereference')) {
      return $abort;
    }

    // Get the latest cache values and schema.
    content_clear_type_cache(TRUE, TRUE);
    $types = content_types_install();
    if (empty($types)) {
      return $ret;
    }
    $sandbox['fields'] = array();
    foreach ($types as $type_name => $fields) {
      foreach ($fields as $field) {
        if ($field['type'] == 'nodereference') {
          $sandbox['fields'][] = $field;
        }
      }
    }
    if (empty($sandbox['fields'])) {
      return $ret;
    }
    $sandbox['progress'] = 0;
    $sandbox['visited'] = array();
  }
  $field = $sandbox['fields'][$sandbox['progress']];

  // We only want to process a field once -- if we hit it a second time,
  // that means it's its own table and it should have already been updated.
  if (!in_array($field['field_name'], $sandbox['visited'])) {
    $db_info = content_database_info($field);
    $table = $db_info['table'];
    $attributes = $db_info['columns']['nid'];
    $column = $attributes['column'];
    $attributes['not null'] = FALSE;
    db_change_field($ret, $table, $column, $column, array(
      'type' => 'int',
      'not null' => FALSE,
    ));
    db_field_set_no_default($ret, $db_info['table'], $column);
    $ret[] = update_sql("UPDATE {" . $db_info['table'] . "} SET " . $column . " = NULL WHERE " . $column . " = 0");
    $sandbox['visited'][] = $field['field_name'];
  }
  $sandbox['progress']++;
  $ret['#finished'] = $sandbox['progress'] / count($sandbox['fields']);
  return $ret;
}