Add callbacks to interactions to allow customizing of the fields

routes/api.php

@@ -3,15 +3,4 @@
 use Illuminate\Support\Facades\Route;
 use Maatwebsite\LaravelNovaExcel\Http\Controllers\ExcelController;
 
-/*
-|--------------------------------------------------------------------------
-| Tool API Routes
-|--------------------------------------------------------------------------
-|
-| Here is where you may register API routes for your tool. These routes
-| are loaded by the ServiceProvider of your tool. They are protected
-| by your tool's "Authorize" middleware by default. Now, go build!
-|
-*/
-
 Route::get('download', ExcelController::class . '@download');

src/Interactions/AskForFilename.php

@@ -9,12 +9,20 @@ trait AskForFilename
     /**
      * Ask the user for a filename.
      *
-     * @param string $label Input label
+     * @param string        $label Input label
+     * @param callable|null $callback
+     *
      * @return $this
      */
-    public function askForFilename(string $label = null)
+    public function askForFilename(string $label = null, callable $callback = null)
     {
-        $this->actionFields[] = Text::make($label ?? __('Filename'), 'filename');
+        $field = Text::make($label ?? __('Filename'), 'filename');
+
+        if (is_callable($callback)) {
+            $callback($field);
+        }
+
+        $this->actionFields[] = $field;
 
         return $this;
     }

src/Interactions/AskForWriterType.php

@@ -10,20 +10,27 @@ trait AskForWriterType
     /**
      * Ask the user for a filename.
      *
-     * @param array|null  $options
-     * @param string|null $label
+     * @param array|null    $options
+     * @param string|null   $label
+     * @param callable|null $callback
      *
      * @return $this
      */
-    public function askForWriterType(array $options = null, string $label = null)
+    public function askForWriterType(array $options = null, string $label = null, callable $callback = null)
     {
         $options = $options ?: [
             Excel::XLS  => 'XLS',
             Excel::XLSX => 'XLSX',
             Excel::CSV  => 'CSV',
         ];
 
-        $this->actionFields[] = Select::make(__($label ?: 'Type'), 'writer_type')->options($options);
+        $field = Select::make(__($label ?: 'Type'), 'writer_type')->options($options);
+
+        if (is_callable($callback)) {
+            $callback($field);
+        }
+
+        $this->actionFields[] = $field;
 
         return $this;
     }

src/Requests/ExportActionRequest.php

@@ -2,6 +2,7 @@
 
 namespace Maatwebsite\LaravelNovaExcel\Requests;
 
+use Illuminate\Support\Collection;
 use Laravel\Nova\Lenses\Lens;
 use Laravel\Nova\Http\Requests\ActionRequest;
 use Laravel\Nova\Http\Requests\LensActionRequest;
@@ -25,7 +26,7 @@ public function toExportQuery(bool $onlyIndexFields = false, array $only = [])
             $query->whereKey(explode(',', $this->resources));
         })->when($onlyIndexFields, function ($query) {
             $query->select($this->indexFields());
-        })->when(\count($only) > 0, function ($query) use ($only) {
+        })->when(count($only) > 0, function ($query) use ($only) {
             $query->select($only);
         });
     }
@@ -60,7 +61,7 @@ protected function setLens(Lens $lens)
     protected function indexFields(): array
     {
         $fields = $this->lens
-            ? collect($this->lens->fields($this))
+            ? new Collection($this->lens->fields($this))
             : $this->newResource()->indexFields($this);
 
         return $fields->map->attribute->unique()->all();