ninesurvey/src/ninesurvey-1.0/config/packages/one_upload.yaml

oneup_uploader:
    mappings:
        avatar:
            frontend: dropzone
        logo:
            frontend: dropzone               
        document:
            frontend: dropzone   
            namer: app.upload.samename         
            storage:
                directory: "%kernel.project_dir%/uploads/document"