Implements \Drupal\Core\Entity\Query\ConditionAggregateInterface::condition().
Overrides ConditionAggregateInterface::condition
public function condition($field, $function = NULL, $value = NULL, $operator = NULL, $langcode = NULL) {
$this->conditions[] = array(
'field' => $field,
'function' => $function,
'value' => $value,
'operator' => $operator,
'langcode' => $langcode,
);
return $this;
}