Dynamic Nested Attributes

Overview

Implement Rails nested attributes with dynamic add/remove functionality using Turbo Streams and Simple Form. This pattern allows users to add and remove associated records inline within a parent form.

When to Use

• Building forms where users need to manage multiple child records (has_many associations)
• Adding/removing nested items without page refresh
• Bulk creation or editing of associated records
• Forms requiring progressive disclosure of additional fields

Key Components

1. Form Object or Model

• Accepts nested attributes for the association
• Use accepts_nested_attributes_for :association_name in the model or form object