function IndexTidDepthModifier::preQuery

Overrides HandlerBase::preQuery

File

core/modules/taxonomy/src/Plugin/views/argument/IndexTidDepthModifier.php, line 26

Class

IndexTidDepthModifier

Argument handler for to modify depth for a previous term.

Namespace

Drupal\taxonomy\Plugin\views\argument

Code

public function preQuery() {
    // We don't know our argument yet, but it's based upon our position:
    $argument = $this->view->args[$this->position] ?? NULL;
    if (!is_numeric($argument)) {
        return;
    }
    if ($argument > 10) {
        $argument = 10;
    }
    if ($argument < -10) {
        $argument = -10;
    }
    // Figure out which argument preceded us.
    $keys = array_reverse(array_keys($this->view->argument));
    $skip = TRUE;
    foreach ($keys as $key) {
        if ($key == $this->options['id']) {
            $skip = FALSE;
            continue;
        }
        if ($skip) {
            continue;
        }
        if (empty($this->view->argument[$key])) {
            continue;
        }
        $handler =& $this->view->argument[$key];
        if (empty($handler->definition['accept depth modifier'])) {
            continue;
        }
        // Finally!
        $handler->options['depth'] = $argument;
    }
}