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function comment_update_7000 in Drupal 7

Rename comment display setting variables.

Related topics

Updates from 6.x to 7.x
Update functions from 6.x to 7.x.

File

modules/comment/comment.install, line 108
Install, update and uninstall functions for the comment module.

Code

function comment_update_7000() {
  $types = _update_7000_node_get_types();
  foreach ($types as $type => $type_object) {
    variable_del('comment_default_order' . $type);

    // Drupal 6 had four display modes:
    // - COMMENT_MODE_FLAT_COLLAPSED = 1
    // - COMMENT_MODE_FLAT_EXPANDED = 2
    // - COMMENT_MODE_THREADED_COLLAPSED = 3
    // - COMMENT_MODE_THREADED_EXPANDED = 4
    //
    // Drupal 7 doesn't support collapsed/expanded modes anymore, so we
    // migrate all the flat modes to COMMENT_MODE_FLAT (0) and all the threaded
    // modes to COMMENT_MODE_THREADED (1).
    $setting = variable_get('comment_default_mode_' . $type, 4);
    if ($setting == 3 || $setting == 4) {
      variable_set('comment_default_mode_' . $type, 1);
    }
    else {
      variable_set('comment_default_mode_' . $type, 0);
    }

    // There were only two comment modes in the past:
    // - 1 was 'required' previously, convert into DRUPAL_REQUIRED (2).
    // - 0 was 'optional' previously, convert into DRUPAL_OPTIONAL (1).
    $preview = variable_get('comment_preview_' . $type, 1) ? 2 : 1;
    variable_set('comment_preview_' . $type, $preview);
  }
}