Drupal - Dispaly block if term page has no tagged nodes and no child terms?

How can I show a block on term pages if no nodes are tagged with that term an开发者_开发知识库d also there are no child terms?

Im using Drupal 6. Thanks

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Tricky one but you could use custom PHP code for your block display, something like this (assuming Drupal 6 here):

if (strstr($_GET['q'], 'taxonomy/term/')) {
  $parts = explode('/', $_GET['q']);
  $term = taxonomy_get_term($parts(2));
  if ($term && $term->tid) {
    $node_count = db_result(db_query('SELECT COUNT(nid) FROM {term_node} WHERE tid = %d', $term->tid));
    if ($node_count == 0) {
      return FALSE;
    }
    if (count(taxonomy_get_children($term->tid)) == 0) {
      return FALSE;
    }
    return TRUE;
  }
}

return TRUE;

And for Drupal 7:

if (arg(0) == 'taxonomy' && arg(1) == 'term' && is_numeric($arg(2))) {
  $term = taxonomy_term_load(arg(2));
  if ($term && $term->tid) {
    if (db_query('SELECT COUNT(nid) FROM {taxonomy_index} WHERE tid = :tid', array(':tid' => $term->tid))->fetchField() == 0) {
      return FALSE;
    }
    if (count(taxonomy_get_children($term->tid)) == 0) {
      return FALSE;
    }
    return TRUE;
  }
}
return TRUE;