function poll_update in Drupal 7

Same name and namespace in other branches

1. 4 modules/poll.module \poll_update()
2. 5 modules/poll/poll.module \poll_update()
3. 6 modules/poll/poll.module \poll_update()

Implements hook_update().

File

modules/poll/poll.module, line 570

Enables your site to capture votes on different topics in the form of multiple choice questions.

Code

function poll_update($node) {

  // Update poll settings.
  db_update('poll')
    ->fields(array(
    'runtime' => $node->runtime,
    'active' => $node->active,
  ))
    ->condition('nid', $node->nid)
    ->execute();

  // Poll choices with empty titles signifies removal. We remove all votes to
  // the removed options, so people who voted on them can vote again.
  foreach ($node->choice as $key => $choice) {
    if (!empty($choice['chtext'])) {
      db_merge('poll_choice')
        ->key(array(
        'chid' => $choice['chid'],
      ))
        ->fields(array(
        'chtext' => $choice['chtext'],
        'chvotes' => (int) $choice['chvotes'],
        'weight' => $choice['weight'],
      ))
        ->insertFields(array(
        'nid' => $node->nid,
        'chtext' => $choice['chtext'],
        'chvotes' => (int) $choice['chvotes'],
        'weight' => $choice['weight'],
      ))
        ->execute();
    }
    else {
      db_delete('poll_vote')
        ->condition('nid', $node->nid)
        ->condition('chid', $key)
        ->execute();
      db_delete('poll_choice')
        ->condition('nid', $node->nid)
        ->condition('chid', $choice['chid'])
        ->execute();
    }
  }
}