first commit of module developed by Rosie

css/islandlives.css

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+tr.Unpublished {
+  background-color: #FFF4F4;
+}

islandlives.info.yml

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+name: IslandLives customization module
+description: Hooks and custom elements for IslandLives.
+package: Custom
+
+type: module
+core_version_requirement: ^9.4 || ^10
+
+dependencies: 
+  - pathauto:pathauto

islandlives.libraries.yml

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+unpublished:
+  version: 1.x
+  css:
+    theme:
+      css/islandlives.css: {}
+  

islandlives.module

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+<?php
+
+/**
+ * @file
+ * Custom hooks for Islandlives site.
+ */
+
+use Drupal\pathauto\PathautoPatternInterface;
+use Drupal\views\ViewExecutable;
+
+/**
+ * Implements hook_pathauto_pattern_alter().
+ */
+function islandlives_pathauto_pattern_alter(PathautoPatternInterface $pattern, array $context) {
+  // Only act on the repository_items pattern.
+  if ($pattern->id() == 'repository_items') {
+    // If node has no PID...
+    $node = $context['data']['node'];
+    $pid = $node->get('field_pid')->value;
+    if ($pid == NULL) {
+      // Replace the PID with the NID in the alias.
+      $new_pattern = preg_replace('/\[node:field_pid\]/', '[node:nid]', $pattern->getPattern());
+      $pattern->setPattern($new_pattern);
+    }
+  }
+}
+
+/**
+ * Implements hook_views_pre_render().
+ */
+function islandlives_views_pre_render(ViewExecutable $view) {
+  $applicable_views = [
+    'content',
+    'media',
+    'manage_members',
+    'media_of',
+  ];
+  if (isset($view) && (in_array($view->storage->id(), $applicable_views))) {
+    $view->element['#attached']['library'][] = 'islandlives/unpublished';
+  }
+}