Upload field type in Config pages

Need Help
#1

Hello,

I am trying to add a config page from the tutorial

(https://docs.octobercms.com/2.x/plugin/settings.html#database-settings)

The field definition in fields.yaml is

        intro_image:
            label: 'File upload'
            span: auto
            mode: file
            useCaption: true
            thumbOptions:
                mode: crop
                extension: auto
            type: fileupload

However the upload type is not working in this.

I have also added the relation in the model as

    public $attachOne = [
        'intro_image' => 'System\Models\File'
    ];

but still there is the follwoing error

Call to undefined method My\Settings\Controllers\MySettingsController::hasRelation()

I know it has not database value to relate to but there is a key defined in MySettings::get(‘value’). Is there any possibility to relate this value to the upload image $attachOne relationship?

Thank you in advance.

#2

It’s not clear from this post why this is happening. We would need to see the full stack trace to understand where the error comes from.