Add a document file upload

// Add the document field to the signup form.

add_action( 'wcv_form_input_after__wcv_store_name', 'wcv_doc_uploader');

function wcv_doc_uploader( ){

	if ('signup' == WCVendors_Pro_Store_Form::$form_type ){

		echo '<hr />';

		echo '<h3>Document Uploader</h3>';

		$value = get_user_meta( get_current_user_id(), '_wcv_custom_settings_doc_example', true );

		WCVendors_Pro_Form_Helper::file_uploader( array(

			'id' 	            => '_wcv_custom_settings_doc_example',

			'header_text'		=> __('Document uploader', 'wcvendors-pro' ),

			'add_text' 			=> __('Add document', 'wcvendors-pro' ),

			'remove_text'		=> __('Remove document', 'wcvendors-pro' ),

			'file_meta_key' 	=> '_wcv_custom_settings_doc_example',

			'save_button'		=> __('Add document', 'wcvendors-pro' ),

			'window_title'		=> __('Select a document', 'wcvendors-pro' ),

			'value'				=> $value

			), 'document'

		);

	}

}