function prev_next_nid in Previous/Next API 7

Same name and namespace in other branches

1. 6 prev_next.module \prev_next_nid()
2. 7.2 prev_next.module \prev_next_nid()

@todo Please document this function.

See also

http://drupal.org/node/1354

1 call to prev_next_nid()

prev_next_block_view in ./prev_next.module

Implements hook_block_view().

File

./prev_next.module, line 554

Code

function prev_next_nid($nid, $op = 'next') {
  foreach (module_implements('prev_next_nid') as $module) {
    $function = $module . '_prev_next_nid';
    $ret = $function($nid, $op);
    if ($ret !== FALSE) {

      // If the function returns FALSE, keep trying other methods
      return $ret;
    }
  }
  if ($op == 'prev') {
    return prev_next_nid_prev($nid);
  }
  elseif ($op == 'next') {
    return prev_next_nid_next($nid);
  }
  else {
    return 0;
  }
}