excel export works

app/Nova/Actions/DownloadExcel.php

@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Nova\Actions;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Arr;
+use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel as BaseDownloadExcel;
+
+// Fixes Nova 5 incompatibility where field names are PendingTranslation objects instead of strings.
+final class DownloadExcel extends BaseDownloadExcel
+{
+    /**
+     * @param  Model|mixed  $row
+     */
+    public function map($row): array
+    {
+        $only   = array_map('strval', $this->getOnly());
+        $except = $this->getExcept();
+
+        if ($row instanceof Model) {
+            if (!$this->onlyIndexFields && $except === null && (!is_array($only) || count($only) === 0)) {
+                $except = $row->getHidden();
+            }
+
+            $row->setHidden([]);
+            $row = $this->replaceFieldValuesWhenOnResource($row, $only);
+        }
+
+        if (is_array($only) && count($only) > 0) {
+            $row = Arr::only($row, $only);
+        }
+
+        if (is_array($except) && count($except) > 0) {
+            $row = Arr::except($row, $except);
+        }
+
+        return $row;
+    }
+
+    protected function replaceFieldValuesWhenOnResource(Model $model, array $only = []): array
+    {
+        $resource = $this->resolveResource($model);
+        $fields   = $this->resourceFields($resource);
+
+        $row = [];
+        foreach ($fields as $field) {
+            if (!$this->isExportableField($field)) {
+                continue;
+            }
+
+            if (\in_array($field->attribute, $only, true)) {
+                $row[$field->attribute] = $field->value;
+            } elseif (\in_array((string) $field->name, $only, true)) {
+                $row[(string) $field->name] = $field->value;
+            }
+        }
+
+        foreach (array_diff($only, array_keys($row)) as $attribute) {
+            if ($model->{$attribute}) {
+                $row[$attribute] = $model->{$attribute};
+            } else {
+                $row[$attribute] = '';
+            }
+        }
+
+        $row = array_merge(array_flip($only), $row);
+
+        return $row;
+    }
+}

app/Nova/AnswerResource.php

@@ -10,7 +10,7 @@
 use Laravel\Nova\Fields\Text;
 use Laravel\Nova\Fields\Textarea;
 use Laravel\Nova\Http\Requests\NovaRequest;
-use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel;
+use App\Nova\Actions\DownloadExcel;
 
 final class AnswerResource extends Resource
 {

app/Nova/CategoryResource.php

@@ -10,7 +10,7 @@
 use Laravel\Nova\Fields\Number;
 use Laravel\Nova\Fields\Text;
 use Laravel\Nova\Http\Requests\NovaRequest;
-use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel;
+use App\Nova\Actions\DownloadExcel;
 
 final class CategoryResource extends Resource
 {

app/Nova/LogResource.php

@@ -10,7 +10,7 @@
 use Laravel\Nova\Fields\ID;
 use Laravel\Nova\Fields\Text;
 use Laravel\Nova\Http\Requests\NovaRequest;
-use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel;
+use App\Nova\Actions\DownloadExcel;
 
 final class LogResource extends Resource
 {

app/Nova/QuestionGroupResource.php

@@ -12,7 +12,7 @@
 use Laravel\Nova\Fields\Text;
 use Laravel\Nova\Fields\Textarea;
 use Laravel\Nova\Http\Requests\NovaRequest;
-use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel;
+use App\Nova\Actions\DownloadExcel;
 
 final class QuestionGroupResource extends Resource
 {

app/Nova/QuestionResource.php

@@ -15,7 +15,7 @@
 use Laravel\Nova\Fields\Text;
 use Laravel\Nova\Fields\Textarea;
 use Laravel\Nova\Http\Requests\NovaRequest;
-use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel;
+use App\Nova\Actions\DownloadExcel;
 
 final class QuestionResource extends Resource
 {

app/Nova/ScreeningResource.php

@@ -11,7 +11,7 @@
 use Laravel\Nova\Fields\ID;
 use Laravel\Nova\Fields\Number;
 use Laravel\Nova\Http\Requests\NovaRequest;
-use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel;
+use App\Nova\Actions\DownloadExcel;
 
 final class ScreeningResource extends Resource
 {

app/Nova/SessionResource.php

@@ -12,7 +12,7 @@
 use Laravel\Nova\Fields\Select;
 use Laravel\Nova\Fields\Textarea;
 use Laravel\Nova\Http\Requests\NovaRequest;
-use Maatwebsite\LaravelNovaExcel\Actions\DownloadExcel;
+use App\Nova\Actions\DownloadExcel;
 
 final class SessionResource extends Resource
 {