public function shs_handler_filter_term_node_tid_depth::query in Simple hierarchical select 7

Add this filter to the query.

Due to the nature of fapi, the value and the operator have an unintended level of indirection. You will find them in $this->operator and $this->value respectively.

Overrides views_handler_filter_in_operator::query

File

includes/handlers/shs_handler_filter_term_node_tid_depth.inc, line 56

Definition of views_handler_filter_term_node_tid_depth.

Class

shs_handler_filter_term_node_tid_depth

Filter for taxonomy terms with depth (including selection by simple hierarchical select).

Code

public function query() {

  // Check if multiple select allowed.
  if ($this->options['expose']['multiple']) {

    // If no filter values are present, then do nothing.
    if ($this->value == 'All') {
      return;
    }
    else {
      $this->value = explode('+', reset($this->value));
      $this->value = explode(',', end($this->value));
      $operator = 'IN';
    }
  }
  else {

    // If no filter values are present, then do nothing.
    if (count($this->value) == 0) {
      return;
    }
    elseif (count($this->value) == 1) {

      // $this->value is an array with a single element so convert it.
      if (is_array($this->value)) {
        $this->value = current($this->value);
      }
      $operator = '=';
    }
    else {
      $operator = 'IN';
    }
  }

  // The normal use of ensure_my_table() here breaks Views.
  // So instead we trick the filter into using the alias of the base table.
  // See http://drupal.org/node/271833
  // If a relationship is set, we must use the alias it provides.
  if (!empty($this->relationship)) {
    $this->table_alias = $this->relationship;
  }
  elseif (isset($this->query->table_queue[$this->query->base_table]['alias'])) {
    $this->table_alias = $this->query->table_queue[$this->query->base_table]['alias'];
  }
  else {
    return;
  }

  // Now build the subqueries.
  if (module_exists('taxonomy_entity_index')) {
    $subquery = db_select('taxonomy_entity_index', 'tn');
    $subquery
      ->addField('tn', 'entity_id');
  }
  else {
    $subquery = db_select('taxonomy_index', 'tn');
    $subquery
      ->addField('tn', 'nid');
  }
  $where = db_or()
    ->condition('tn.tid', $this->value, $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", $this->value, $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", $this->value, $operator);
      $last = "th{$count}";
    }
  }
  $subquery
    ->condition($where);
  $this->query
    ->add_where($this->options['group'], "{$this->table_alias}.{$this->real_field}", $subquery, 'IN');
}