public function views_handler_field::add_additional_fields

Add 'additional' fields to the query.

Parameters

array $fields: An array of fields. The key is an identifier used to later find the field alias used. The value is either a string in which case it's assumed to be a field on this handler's table; or it's an array in the form of

array(
  'table' => $tablename,
  'field' => $fieldname,
);

File

handlers/views_handler_field.inc, line 139

Definition of views_handler_field.

Class

views_handler_field

Base field handler that has no options and renders an unformatted field.

Code

public function add_additional_fields($fields = NULL) {
  if (!isset($fields)) {

    // Notice check.
    if (empty($this->additional_fields)) {
      return;
    }
    $fields = $this->additional_fields;
  }
  $group_params = array();
  if ($this->options['group_type'] != 'group') {
    $group_params = array(
      'function' => $this->options['group_type'],
    );
  }
  if (!empty($fields) && is_array($fields)) {
    foreach ($fields as $identifier => $info) {
      if (is_array($info)) {
        if (isset($info['table'])) {
          $table_alias = $this->query
            ->ensure_table($info['table'], $this->relationship);
        }
        else {
          $table_alias = $this->table_alias;
        }
        if (empty($table_alias)) {
          $t_args = array(
            '@handler' => $this->definition['handler'],
            '@identifier' => $identifier,
            '@table' => $info['table'],
          );
          debug(t('Handler @handler tried to add additional field @identifier but @table could not be added.', $t_args));
          $this->aliases[$identifier] = 'broken';
          continue;
        }
        $params = array();
        if (!empty($info['params'])) {
          $params = $info['params'];
        }
        $params += $group_params;
        $this->aliases[$identifier] = $this->query
          ->add_field($table_alias, $info['field'], NULL, $params);
      }
      else {
        $this->aliases[$info] = $this->query
          ->add_field($this->table_alias, $info, NULL, $group_params);
      }
    }
  }
}