function HandlerBase::getField

Overrides ViewsHandlerInterface::getField

File

core/modules/views/src/Plugin/views/HandlerBase.php, line 174

Class

HandlerBase

Base class for Views handler plugins.

Namespace

Code

public function getField($field = NULL) {
    if (!isset($field)) {
        if (!empty($this->formula)) {
            $field = $this->getFormula();
        }
        else {
            $field = $this->tableAlias . '.' . $this->realField;
        }
    }
    // If grouping, check to see if the aggregation method needs to modify the field.
    if ($this->view->display_handler
        ->useGroupBy()) {
        $this->view
            ->initQuery();
        if ($this->query) {
            $info = $this->query
                ->getAggregationInfo();
            if (!empty($info[$this->options['group_type']]['method'])) {
                $method = $info[$this->options['group_type']]['method'];
                if (method_exists($this->query, $method)) {
                    return $this->query
                        ->{$method}($this->options['group_type'], $field);
                }
            }
        }
    }
    return $field;
}