---
url: "https://vueda.dev/v3/reference/api/js/utils/reverseForeignKey.md"
title: "utils/reverseForeignKey"
---

# utils/reverseForeignKey

## Overview

Identifies a reverse foreign key in model info, which forms show read-only unless the view expands it.

## Methods

- [isReverseForeignKey](/v3/reference/api/js/utils/reverseForeignKey/functions/isReverseForeignKey.md) - Report whether a field is a reverse foreign key, such as an order's `items` when each item has a foreign key to its order.
- [omitUnexpandedReverseForeignKeys](/v3/reference/api/js/utils/reverseForeignKey/functions/omitUnexpandedReverseForeignKeys.md) - Remove each reverse foreign key that `expand` does not name from a list of field names to submit.

## Source

`client/lib/utils/reverseForeignKey.js:1`