Support for nested request data when using the ConvertsBase64ToFiles trait

Author: pascalbaljet

README.md

@@ -324,6 +324,25 @@ $jpgFile = $request->file('jpg_image');
 $jpgFile->getClientOriginalName();
 ```
 
+This trait supports nested data as well. You can either reference the keys by a nested array, or with a [dotted notation](https://laravel.com/docs/master/helpers#method-array-dot):
+
+```php
+class ImageRequest extends FormRequest
+{
+    use ConvertsBase64ToFiles;
+
+    protected function base64FileKeys(): array
+    {
+        return [
+            'company.logo' => 'Logo.jpg',
+            'user' => [
+                'avatar' => 'Avatar.jpg',
+            ],
+        ];
+    }
+}
+```
+
 Want to know more about this trait? Check out the [blog post](https://protone.media/blog/convert-and-store-base64-encoded-files-in-laravel-use-validation-rules-and-access-the-decoded-files-from-the-request-instance).
 
 ### Testing

src/Request/ConvertsBase64ToFiles.php

@@ -3,8 +3,11 @@
 namespace ProtoneMedia\LaravelMixins\Request;
 
 use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Arr;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Str;
+use Symfony\Component\HttpFoundation\FileBag;
+use Symfony\Component\HttpFoundation\ParameterBag;
 
 trait ConvertsBase64ToFiles
 {
@@ -13,6 +16,26 @@ protected function base64FileKeys(): array
         return [];
     }
 
+    /**
+     * Helper method to get the body parameters bag.
+     *
+     * @return \Symfony\Component\HttpFoundation\ParameterBag
+     */
+    private function bodyParametersBag(): ParameterBag
+    {
+        return $this->request;
+    }
+
+    /**
+     * Helper method to get the uploaded files bag.
+     *
+     * @return FileBag
+     */
+    private function uploadFilesBag(): FileBag
+    {
+        return $this->files;
+    }
+
     /**
      * Pulls the Base64 contents for each image key and creates
      * an UploadedFile instance from it and sets it on the
@@ -22,7 +45,9 @@ protected function base64FileKeys(): array
      */
     protected function prepareForValidation()
     {
-        Collection::make($this->base64FileKeys())->each(function ($filename, $key) {
+        $flattened = Arr::dot($this->base64FileKeys());
+
+        Collection::make($flattened)->each(function ($filename, $key) {
             rescue(function () use ($key, $filename) {
                 $base64Contents = $this->input($key);
 
@@ -48,8 +73,13 @@ protected function prepareForValidation()
 
                 $uploadedFile = new UploadedFile($tempFilePath, $filename, null, null, true);
 
-                $this->request->remove($key);
-                $this->files->set($key, $uploadedFile);
+                $body = $this->bodyParametersBag()->all();
+                Arr::forget($body, $key);
+                $this->bodyParametersBag()->replace($body);
+
+                $files = $this->uploadFilesBag()->all();
+                Arr::set($files, $key, $uploadedFile);
+                $this->uploadFilesBag()->replace($files);
             }, null, false);
         });
     }

tests/Request/ConvertsBase64ToFilesTest.php

@@ -3,6 +3,7 @@
 namespace ProtoneMedia\Mixins\Tests\Request;
 
 use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Routing\Redirector;
 use Orchestra\Testbench\TestCase;
 use ProtoneMedia\LaravelMixins\Request\ConvertsBase64ToFiles;
 use ZipArchive;
@@ -28,6 +29,30 @@ public function rules()
     }
 }
 
+class NestedImageRequest extends FormRequest
+{
+    use ConvertsBase64ToFiles;
+
+    protected function base64FileKeys(): array
+    {
+        return [
+            'company' => [
+                'logo' => 'company_logo.jpeg',
+            ],
+
+            'user.avatar' => 'user_avatar.png',
+        ];
+    }
+
+    public function rules()
+    {
+        return [
+            'company.logo' => ['required', 'file', 'image'],
+            'user.avatar'  => ['required', 'file', 'image'],
+        ];
+    }
+}
+
 class ZipRequest extends FormRequest
 {
     use ConvertsBase64ToFiles;
@@ -49,6 +74,13 @@ public function rules()
 
 class ConvertsBase64ToFilesTest extends TestCase
 {
+    private function validateRequest(FormRequest $request)
+    {
+        $request->setContainer($this->app);
+        $request->setRedirector($this->app->make(Redirector::class));
+        $request->validateResolved();
+    }
+
     /** @test */
     public function it_converts_the_base64_images_to_illuminate_file_uploads()
     {
@@ -57,8 +89,7 @@ public function it_converts_the_base64_images_to_illuminate_file_uploads()
             'jpeg_image' => file_get_contents(__DIR__ . '/base64_jpeg'),
         ]);
 
-        $request->setContainer($this->app);
-        $request->validateResolved();
+        $this->validateRequest($request);
 
         $pngFile  = $request->file('png_image');
         $jpegFile = $request->file('jpeg_image');
@@ -81,15 +112,49 @@ public function it_converts_the_base64_images_to_illuminate_file_uploads()
         $this->assertEquals('width="300" height="300"', $jpegSize[3]);
     }
 
+    /** @test */
+    public function it_handles_nested_files()
+    {
+        $request = NestedImageRequest::create('/', 'POST', [
+            'company' => [
+                'logo' => file_get_contents(__DIR__ . '/base64_jpeg'),
+            ],
+            'user' => [
+                'avatar' => file_get_contents(__DIR__ . '/base64_png'),
+            ],
+        ]);
+
+        $this->validateRequest($request);
+
+        $pngFile  = $request->file('user.avatar');
+        $jpegFile = $request->file('company.logo');
+
+        $this->assertNotNull($pngFile);
+        $this->assertNotNull($jpegFile);
+
+        $this->assertEquals($pngFile, $request->validated()['user']['avatar']);
+        $this->assertEquals($jpegFile, $request->validated()['company']['logo']);
+
+        //
+
+        $pngSize  = getimagesize($pngFile->getRealPath());
+        $jpegSize = getimagesize($jpegFile->getRealPath());
+
+        $this->assertEquals('user_avatar.png', $pngFile->getClientOriginalName());
+        $this->assertEquals('company_logo.jpeg', $jpegFile->getClientOriginalName());
+
+        $this->assertEquals('width="300" height="300"', $pngSize[3]);
+        $this->assertEquals('width="300" height="300"', $jpegSize[3]);
+    }
+
     /** @test */
     public function it_converts_a_base64_zip_to_an_illuminate_file_upload()
     {
         $request = ZipRequest::create('/', 'POST', [
             'zip' => file_get_contents(__DIR__ . '/base64_zip'),
         ]);
 
-        $request->setContainer($this->app);
-        $request->validateResolved();
+        $this->validateRequest($request);
 
         $zipFile = $request->file('zip');