public function views_handler_argument_term_node_tid_depth::query in Views (for Drupal 7) 7.3

Same name and namespace in other branches

1. 6.3 modules/taxonomy/views_handler_argument_term_node_tid_depth.inc \views_handler_argument_term_node_tid_depth::query()
2. 6.2 modules/taxonomy/views_handler_argument_term_node_tid_depth.inc \views_handler_argument_term_node_tid_depth::query()

Set up the query for this argument.

The argument sent may be found at $this->argument.

Parameters

bool $group_by: Whether the query uses a group-by.

Overrides views_handler_argument::query

File

modules/taxonomy/views_handler_argument_term_node_tid_depth.inc, line 99

Definition of views_handler_argument_term_node_tid_depth.

Class

views_handler_argument_term_node_tid_depth

Argument handler for taxonomy terms with depth.

Code

public function query($group_by = FALSE) {
  $this
    ->ensure_my_table();
  if (!empty($this->options['break_phrase'])) {
    $tids = new stdClass();
    $tids->value = $this->argument;
    $tids = views_break_phrase($this->argument, $tids);
    if ($tids->value == array(
      -1,
    )) {
      return FALSE;
    }
    if (count($tids->value) > 1) {
      $operator = 'IN';
    }
    else {
      $operator = '=';
    }
    $tids = $tids->value;
  }
  else {
    $operator = "=";
    $tids = $this->argument;
  }

  // Now build the subqueries.
  $subquery = db_select('taxonomy_index', 'tn');
  $subquery
    ->addField('tn', 'nid');
  $where = db_or()
    ->condition('tn.tid', $tids, $operator);
  $last = "tn";
  if ($this->options['depth'] > 0) {
    $subquery
      ->leftJoin('taxonomy_term_hierarchy', 'th', "th.tid = tn.tid");
    $last = "th";
    foreach (range(1, abs($this->options['depth'])) as $count) {
      $subquery
        ->leftJoin('taxonomy_term_hierarchy', "th{$count}", "{$last}.parent = th{$count}.tid");
      $where
        ->condition("th{$count}.tid", $tids, $operator);
      $last = "th{$count}";
    }
  }
  elseif ($this->options['depth'] < 0) {
    foreach (range(1, abs($this->options['depth'])) as $count) {
      $subquery
        ->leftJoin('taxonomy_term_hierarchy', "th{$count}", "{$last}.tid = th{$count}.parent");
      $where
        ->condition("th{$count}.tid", $tids, $operator);
      $last = "th{$count}";
    }
  }
  $subquery
    ->condition($where);
  $this->query
    ->add_where(0, "{$this->table_alias}.{$this->real_field}", $subquery, 'IN');
}