ive been trying to upload a file using pop up and i cant figure it out.

model

public $attachOne = [
    'input_file' => ['System\Models\File', 'public' => false]
]; 

the anchor to trigger popup

<a href="#"
    data-control="popup"
    data-handler="onUploadForm"
    data-request-data="upload_mode: 1"
    class="btn btn-primary oc-icon-plus">
    New Upload</a>

controller

public function onUploadForm() //pop up
{
    $this->asExtension('FormController')->create();

    return $this->makePartial('upload_form');
}
public function onUpload()
{
    return $this->asExtension('FormController')->create_onSave();
}

config_form.yaml.

fields:
input_file:
    label: 
    type: fileupload
    mode: file
    fileTypes: ['txt', 'csv']
    mimeTypes: 'txt,csv'
    span: auto

upload_form.html

<?= Form::open(['id' => 'uploadForm', 'files' => true, 'data-request' => "onUpload"]) ?>
<input type="hidden" name="upload_mode" value="1" />
<div class="modal-body">
        <?= $this->formRender() ?>
</div>
<div class="modal-footer">
        <button
            type="submit"
            data-request-data="redirect:1"
            data-hotkey="ctrl+s, cmd+s"
            data-popup-load-indicator
            class="btn btn-primary">
            Upload File
        </button>
</div>
<?= Form::close() ?>

everytime i upload something.. its not being saved in the system file table. am i missing something to make the popup/ajax work using file upload?

thanks

I'm with the same problem, could you solve it?

I have found the solution.

https://github.com/octobercms/october/issues/2852#issuecomment-301292260