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Managing Dynamic Forms with Elixir and Phoenix LiveView
Source: dockyard.com
The article introduces the concept of managing dynamic forms in the Phoenix LiveView environment for Elixir applications, where users can dynamically add and remove embedded item inputs. It provides a walkthrough of building a sample application, including setting up the project, generating default components with the Phoenix framework, and modifying migrations to use a jsonb field for order items. The author, Benjamin Rosas, shows how to use Ecto v3.10's sort_param and drop_param options to efficiently manage lists of embedded forms for orders and items. These tools allow for adding new items to a list via a sort parameter, and removing items with a drop parameter, making the form reactive and interactive without any JavaScript. The article also includes a cleanup step for existing views to prevent rendering errors.
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