Symfony $request->files is empty

Question

I have a form in symfony with a <input type="file" id="appbundle_evento_brochure_upload" name="img_uploader_brochure" class="image_upload"> which is generated dynamically with javascript.

When debugging my request I can see

+request: ParameterBag {#9 ▼
    #parameters: array:3 [▼
      "par_1" => array:14 [▶]
      "img_uploader_brochure" => "file_name.jpg"
    ]
  }
  +query: ParameterBag {#10 ▶}
  +server: ServerBag {#14 ▶}
  +files: FileBag {#13 ▼
    #parameters: []
  }

I'm using Symfony form builder like this: $form = $this->createForm(EventoType::class, $evento, [*custom options here*]); where EventoType is my custom type generated on my Evento entity.

Why aren't my files in the request->files section?

The problem here seems to be that this file is not passed in the request as a file but simply as a parameter.

How should I proceed in order to manage them as UploadedFile ?

Answer 1

表单是否具有 enctype="multipart/form-data" 属性？

Answer 2

You have to set this property in your form html tag:

enctype="multipart/form-data"

Or this way with twig:

{{ form_start(form, {'multipart': true}) }}

That way, you are allowing the form to upload files