function RowPluginBase::buildOptionsForm

Provide a form for setting options.

Overrides PluginBase::buildOptionsForm

File

core/modules/views/src/Plugin/views/row/RowPluginBase.php, line 88

Class

RowPluginBase

Base class for Views row plugins.

Namespace

Code

public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);
    if (isset($this->base_table)) {
        $executable = $form_state->get('view')
            ->getExecutable();
        // A whole bunch of code to figure out what relationships are valid for
        // this item.
        $relationships = $executable->display_handler
            ->getOption('relationships');
        $relationship_options = [];
        foreach ($relationships as $relationship) {
            $relationship_handler = Views::handlerManager('relationship')->getHandler($relationship);
            // If this relationship is valid for this type, add it to the list.
            $data = Views::viewsData()->get($relationship['table']);
            $base = $data[$relationship['field']]['relationship']['base'];
            if ($base == $this->base_table) {
                $relationship_handler->init($executable, $this->displayHandler, $relationship);
                $relationship_options[$relationship['id']] = $relationship_handler->adminLabel();
            }
        }
        if (!empty($relationship_options)) {
            $relationship_options = array_merge([
                'none' => $this->t('Do not use a relationship'),
            ], $relationship_options);
            $rel = empty($this->options['relationship']) ? 'none' : $this->options['relationship'];
            if (empty($relationship_options[$rel])) {
                // Pick the first relationship.
                $rel = key($relationship_options);
            }
            $form['relationship'] = [
                '#type' => 'select',
                '#title' => $this->t('Relationship'),
                '#options' => $relationship_options,
                '#default_value' => $rel,
            ];
        }
        else {
            $form['relationship'] = [
                '#type' => 'value',
                '#value' => 'none',
            ];
        }
    }
}