# Nested Records

Create and edit associated records right inside the parent form. No page-hopping, no extra clicks.

- Price: $30/month
- Gem: `gem "avo-nested"`
- Web page: https://avohq.io/addons/nested-records
- Pricing: https://avohq.io/pricing.md

Let your team edit a record and its associations on one form. Nested Records renders an associated resource inline inside the parent's new and edit views, so a user fills in an order and its line items, or an author and their profile, in a single save instead of bouncing between screens. Turn it on with one option: `field :line_items, as: :has_many, nested: true`.

It works on `has_one`, `has_many`, and `has_and_belongs_to_many` fields, reusing the associated record's own Avo resource so its fields and permissions carry over. Scope it to `{ on: :new }`, `:edit`, or `:forms`, cap how many rows a user can add with `limit:`, and lean on your existing `accepts_nested_attributes_for`. Nested attributes, dynamic add and remove rows, and the right strong params are already built and vetted; your agent adds one option instead of generating them.

## What you get

- Capture a record and everything attached to it on one form, whether the association is `has_one`, `has_many`, or `has_and_belongs_to_many`
- Nested records reuse their own Avo resource, so the fields, validations, and permissions you already defined apply without restating them
- Users build out rows right on the page, with no reload, so entering an order and its ten line items feels like one task instead of eleven
- Show nesting only where it earns its place by scoping it to `:new`, `:edit`, or `:forms` with `nested: { on: ... }`
- Keep big forms manageable by capping rows with `limit:`, which hides the add button once the cap is reached
- Sits on top of `accepts_nested_attributes_for` and permits the nested strong params for you, so there is no params plumbing left to maintain

## Why it pays off

- Ship edit-the-whole-tree forms this afternoon instead of generating `fields_for`, nested params, and add/remove JavaScript from scratch.
- Nested attributes and strong params are easy to get subtly wrong; here they are built for many apps, reviewed by people, and fixed once for everyone.
- Every Avo release makes it better: it reuses your existing resources and keeps working through upgrades, so the nested forms your agent set up never get stranded.
- Tokens, time, and focus go to your product, not to a form builder generated from scratch in every app.

Included in bundles: Growth ($145/month)