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function webform_update_7310 in Webform 7.3

Same name and namespace in other branches
  1. 7.4 webform.install \webform_update_7310()

Remove orphaned and unnecessary rows in the webform table.

File

./webform.install, line 611
Webform module install/schema hooks.

Code

function webform_update_7310() {
  $result = db_query("SELECT nid FROM {webform} WHERE\n    nid NOT IN\n    (SELECT DISTINCT(w1.nid) FROM {webform} w1 INNER JOIN {webform_component} wc ON w1.nid = wc.nid)\n    AND nid NOT IN\n    (SELECT w2.nid FROM {webform} w2 INNER JOIN {node} n ON w2.nid = n.nid WHERE n.type = 'webform')");
  $empty_nids = array();
  foreach ($result as $row) {
    $empty_nids[] = $row->nid;
  }
  if (!empty($empty_nids)) {
    db_delete('webform')
      ->condition('nid', $empty_nids, 'IN')
      ->execute();
  }
}