function Combine::validate

Overrides FilterPluginBase::validate

File

core/modules/views/src/Plugin/views/filter/Combine.php, line 104

Class

Combine

Filter handler which allows to search on multiple fields.

Namespace

Code

public function validate() {
    $errors = parent::validate();
    if ($this->displayHandler
        ->usesFields()) {
        $fields = $this->displayHandler
            ->getHandlers('field');
        foreach ($this->options['fields'] as $id) {
            if (!isset($fields[$id])) {
                // Combined field filter only works with fields that are in the field
                // settings.
                $errors[] = $this->t('Field %field set in %filter is not set in display %display.', [
                    '%field' => $id,
                    '%filter' => $this->adminLabel(),
                    '%display' => $this->displayHandler->display['display_title'],
                ]);
                break;
            }
            elseif (!$fields[$id]->clickSortable()) {
                // Combined field filter only works with simple fields. If the field
                // is not click sortable we can assume it is not a simple field.
                // @todo change this check to isComputed. See
                // https://www.drupal.org/node/2349465
                $errors[] = $this->t('Field %field set in %filter is not usable for this filter type. Combined field filter only works for simple fields.', [
                    '%field' => $fields[$id]->adminLabel(),
                    '%filter' => $this->adminLabel(),
                ]);
            }
        }
    }
    else {
        $errors[] = $this->t('%display: %filter can only be used on displays that use fields. Set the style or row format for that display to one using fields to use the combine field filter.', [
            '%display' => $this->displayHandler->display['display_title'],
            '%filter' => $this->adminLabel(),
        ]);
    }
    return $errors;
}