Issue #3450656: Create update hook that will account for most new options

views_bootstrap.install

+<?php
+
+/**
+ * @file
+ * Contains update functions for Views Bootstrap.
+ */
+
+/**
+ * Update Views Bootstrap style configuration for Bootstrap 5 options.
+ */
+function views_bootstrap_update_91001(&$sandbox) {
+  $config_factory = \Drupal::configFactory();
+
+  foreach ($config_factory->listAll('views.view.') as $view_config_name) {
+    $view = $config_factory->getEditable($view_config_name);
+    $save = FALSE;
+    $displays = $view->get('display');
+    foreach ($displays as $display_name => &$display) {
+      if (!empty($display['display_options']['style']) && !empty($display['display_options']['style']['options'])) {
+        $style = (string) $display['display_options']['style']['type'];
+        $options = $display['display_options']['style']['options'];
+
+        // Check cards for set columns value.
+        if ($style == 'views_bootstrap_cards' && !array_key_exists('columns', $options)) {
+          $display['display_options']['style']['options']['columns'] = 1;
+          \Drupal::logger('views_bootstrap')->notice("Updating cards column to default in $display_name for $view_config_name");
+          $save = TRUE;
+        }
+        // Check carousel for new options.
+        if ($style == 'views_bootstrap_carousel' && !array_key_exists('keyboard', $options)) {
+          $display['display_options']['style']['options']['keyboard'] = TRUE;
+          $display['display_options']['style']['options']['ride'] = TRUE;
+          $display['display_options']['style']['options']['use_caption'] = TRUE;
+          $display['display_options']['style']['options']['effect'] = 'slide';
+          \Drupal::logger('views_bootstrap')->notice("Updating options in $display_name for $view_config_name");
+          $save = TRUE;
+        }
+        // Check media object for image placement.
+        if ($style == 'views_bootstrap_media_object' && !array_key_exists('image_placement', $options)) {
+          $display['display_options']['style']['options']['image_placement'] = 'first';
+          \Drupal::logger('views_bootstrap')->notice("Updating image placement in $display_name for $view_config_name");
+          $save = TRUE;
+        }
+      }
+    }
+    if ($save) {
+      $view->set('display', $displays);
+      $view->save(TRUE);
+    }
+  }
+}

views_bootstrap.theme.inc

@@ -361,16 +361,16 @@ function template_preprocess_views_bootstrap_tab(array &$vars): void {
  *   - rows: The raw row data.
  */
 function template_preprocess_views_bootstrap_table(array &$vars): void {
-  $view = $vars['view'];
-  $option_classes = array_filter(explode(' ', $view->style_plugin->options['table_class_custom']));
-  $classes = array_map([Html::class, 'cleanCssIdentifier'], $option_classes);
-
-  $vars['responsive'] = $view->style_plugin->options['responsive'];
-  $vars['attributes']['class'][] = 'table';
-  foreach (array_filter($vars['view']->style_plugin->options['bootstrap_styles']) as $style) {
-    $vars['attributes']['class'][] = 'table-' . $style;
+  $options = $vars['view']->style_plugin->options;
+  $vars['attributes'] = new Attribute(['class' => 'table']);
+  $vars['responsive'] = $options['responsive'];
+  foreach (array_filter($options['bootstrap_styles']) as $style) {
+    $vars['attributes']->addClass('table-' . $style);
   }
-  if (!empty($classes)) {
-    $vars['attributes']['class'] = array_merge($vars['attributes']['class'], $classes);
+  if ($options['table_class_custom']) {
+    $option_classes = array_filter(explode(' ', $options['table_class_custom']));
+    $classes = array_map([Html::class, 'cleanCssIdentifier'], $option_classes);
+    $vars['attributes']->addClass($classes);
   }
+
 }