dynamic-nested-attributes

What problem does it solve?

This Skill helps Rails developers implement dynamic nested forms that manage has_many associations within a single view, reducing boilerplate and errors when creating or editing related records.

Core Features & Use Cases

• Dynamic nested form fields for has_many associations with add/remove controls.
• Turbo Streams-based updates to append or remove nested items without page reloads.
• Clear guidance for model, form object, views, controller actions, and strong parameters to support bulk operations.

Quick Start

Set up a Rails project, add the turbo-rails and simple_form gems, define a parent model with accepts_nested_attributes_for for the child association, create partials for item fields and a Turbo Stream template that inserts new nested fields, and wire a Stimulus controller to handle client-side removal.