fix issue with BelongsTo field, close #16

Author: milewski

src/ConditionalContainer.php

@@ -5,6 +5,8 @@
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Str;
+use Laravel\Nova\Contracts\RelatableField;
+use Laravel\Nova\Fields\BelongsTo;
 use Laravel\Nova\Fields\Field;
 use Laravel\Nova\Http\Controllers\ResourceUpdateController;
 use Laravel\Nova\Http\Controllers\UpdateFieldController;
@@ -287,6 +289,7 @@ public function resolveDependencyFieldUsingRequest($resource, NovaRequest $reque
                 if ($field instanceof Field &&
                     !blank($field->attribute) &&
                     !$field->isReadonly($request) &&
+                    !$field instanceof RelatableField &&
                     !$field instanceof \Whitecube\NovaFlexibleContent\Flexible) {
 
                     $resource->setAttribute($field->attribute, $field->value);

src/HasConditionalContainer.php

@@ -8,6 +8,8 @@
 use Laravel\Nova\Fields\Field;
 use Laravel\Nova\Fields\FieldCollection;
 use Laravel\Nova\Http\Controllers\ActionController;
+use Laravel\Nova\Http\Controllers\AssociatableController;
+use Laravel\Nova\Http\Controllers\AttachableController;
 use Laravel\Nova\Http\Controllers\CreationFieldController;
 use Laravel\Nova\Http\Controllers\FieldController;
 use Laravel\Nova\Http\Controllers\MorphableController;
@@ -220,8 +222,8 @@ private function flattenDependencies(NovaRequest $request, array $fields)
                  * If instance of any associative type flatten out all the fields
                  */
                 if (
-//                    $controller instanceof AssociatableController ||
-//                    $controller instanceof AttachableController ||
+                    $controller instanceof AssociatableController ||
+                    $controller instanceof AttachableController ||
                     $controller instanceof MorphableController ||
                     $controller instanceof ResourceAttachController ||
                     $controller instanceof FieldController) {