feat: allow arrays for blocksResolver.files

README.md

@@ -256,8 +256,8 @@ return [
         // Blocks that contain files fields
         'files' => [
             // Block name as key, field name as value
-            // Resolve the built-in `image` field of the `image` block
-            'image' => 'image'
+            // Resolve the `image` field of the built-in `image` block
+            'image' => ['image']
         ]
     ]
 ];

src/extensions/fieldMethods.php

@@ -1,7 +1,16 @@
 <?php
 
 $filesResolver = function (\Kirby\Cms\Block $item) {
-    foreach (array_values(option('blocksResolver.files', ['image' => 'image'])) as $key) {
+    $keys = array_values(option('blocksResolver.files', ['image' => 'image']));
+
+    // Flatten keys, since the option values can be arrays
+    $keys = array_reduce(
+        $keys,
+        fn ($acc, $i) => array_merge($acc, is_array($i) ? $i : [$i]),
+        []
+    );
+
+    foreach ($keys as $key) {
         /** @var \Kirby\Cms\Files $images */
         $images = $item->content()->get($key)->toFiles();