function EntityReference::buildExtraOptionsForm

Overrides HandlerBase::buildExtraOptionsForm

File

core/modules/views/src/Plugin/views/filter/EntityReference.php, line 189

Class

EntityReference

Filters a view by entity references.

Namespace

Code

public function buildExtraOptionsForm(&$form, FormStateInterface $form_state) : void {
    $form['sub_handler'] = [
        '#type' => 'select',
        '#title' => $this->t('Reference method'),
        '#options' => $this->getSubHandlerOptions(),
        '#default_value' => $this->options['sub_handler'],
        '#required' => TRUE,
    ];
    // We store the settings from any sub handler in sub_handler_settings, but
    // in this form, we have multiple sub handlers conditionally displayed.
    // Copy the active sub_handler_settings into the handler specific settings
    // to set the defaults to match the saved options on build.
    if (!empty($this->options['sub_handler']) && !empty($this->options['sub_handler_settings'])) {
        $this->options[static::SUBFORM_PREFIX . $this->options['sub_handler']] = $this->options['sub_handler_settings'];
    }
    foreach ($this->getSubHandlerOptions() as $sub_handler => $sub_handler_label) {
        $subform_key = static::SUBFORM_PREFIX . $sub_handler;
        $subform = [
            '#type' => 'fieldset',
            '#title' => $this->t('Reference type "@type"', [
                '@type' => $sub_handler_label,
            ]),
            '#tree' => TRUE,
            '#parents' => [
                'options',
                $subform_key,
            ],
            // Make the sub handler settings conditional on the selected selection
            // handler.
'#states' => [
                'visible' => [
                    'select[name="options[sub_handler]"]' => [
                        'value' => $sub_handler,
                    ],
                ],
            ],
        ];
        // Build the sub form and sub for state.
        $selection_handler = $this->getSelectionHandler($sub_handler);
        if (!empty($this->options[$subform_key])) {
            $selection_config = $selection_handler->getConfiguration();
            $selection_config = NestedArray::mergeDeepArray([
                $selection_config,
                $this->options[$subform_key],
            ], TRUE);
            $selection_handler->setConfiguration($selection_config);
        }
        $subform_state = SubformState::createForSubform($subform, $form, $form_state);
        $sub_handler_settings = $selection_handler->buildConfigurationForm($subform, $subform_state);
        if ($selection_handler instanceof ViewsSelection) {
            if (isset($sub_handler_settings['view']['no_view_help'])) {
                // If there are no views with entity reference displays,
                // ViewsSelection still validates the view.
                // This will prevent form config extra form submission,
                // so we remove it here.
                unset($sub_handler_settings['view']['#element_validate']);
            }
        }
        else {
            // Remove unnecessary and inappropriate handler settings from the
            // filter config form.
            $sub_handler_settings['target_bundles_update']['#access'] = FALSE;
            $sub_handler_settings['auto_create']['#access'] = FALSE;
            $sub_handler_settings['auto_create_bundle']['#access'] = FALSE;
        }
        $subform = NestedArray::mergeDeepArray([
            $subform,
            $sub_handler_settings,
        ], TRUE);
        $form[$subform_key] = $subform;
        $this->cleanUpSubformChildren($form[$subform_key]);
    }
    $form['widget'] = [
        '#type' => 'radios',
        '#title' => $this->t('Selection type'),
        '#default_value' => $this->options['widget'],
        '#options' => [
            static::WIDGET_SELECT => $this->t('Select list'),
            static::WIDGET_AUTOCOMPLETE => $this->t('Autocomplete'),
        ],
        '#description' => $this->t('For performance and UX reasons, the maximum count of selectable entities for the "Select list" selection type is limited to @count. If more is expected, select "Autocomplete" instead.', [
            '@count' => static::WIDGET_SELECT_LIMIT,
        ]),
    ];
}