Fixed the position of lb sections/blocks on Home page.

migrations/layout_builder/uw_body_lb.yml

@@ -59,7 +59,6 @@ migration_dependencies:
     - uw_ct_event
     - uw_ct_profile
     - uw_body_sections_lb
-    - uw_cbl_banner_images_lb
     # Embedded blocks.
     - uw_cbl_copy_text
     - uw_cbl_remote_video

migrations/layout_builder/uw_body_sections_lb.yml

@@ -37,6 +37,7 @@ process:
       message: 'Destination node was not found.'
   layout: layout
   layout_settings: layout_settings
+  section: delta
 destination:
   plugin: layout_builder:section
 migration_dependencies:

migrations/layout_builder/uw_cbl_banner_images_lb.yml

@@ -27,7 +27,7 @@ process:
     default_value: 0
   region:
     plugin: default_value
-    default_value: 'content'
+    default_value: 'first'
   delta:
     plugin: default_value
     default_value: 0
@@ -38,4 +38,5 @@ destination:
   plugin: layout_builder:block
 migration_dependencies:
   optional:
+    - uw_body_lb
     - uw_cbl_banner_images

src/Plugin/migrate/destination/LayoutBuilderSection.php

@@ -86,12 +86,17 @@ class LayoutBuilderSection extends DestinationBase implements ContainerFactoryPl
     $layout = $node->get('layout_builder__layout');
 
     $section = new Section($row->getDestinationProperty('layout'), $row->getDestinationProperty('layout_settings'));
-    $layout->appendSection($section);
+    $delta = $row->getDestinationProperty('section');
+    if (isset($delta)) {
+      $layout->insertSection($delta, $section);
+    }
+    else {
+      $layout->appendSection($section);
+      $delta = $layout->count() - 1;
+    }
 
     $node->changed->preserve = TRUE;
     $node->save();
-
-    $delta = $layout->count() - 1;
     return [$node->id(), $delta];
   }