Indy Forms

Forms can be simplified using IndyForm. A form can be implemented in just couple of lines.

  use IndyForm.FormComponent, context: Context

  form_component(form_key, create_action, update_action, opts)

• form_key: is your schema name. This is used for finding the form in the params.
• create_action: can be an atom or list of atoms. This is used to determine what action should be performed - create or update.
• update_action: can be an atom or list of atoms. This is used to determine what action should be performed - create or update. create_action or update_action values can be directly mapped to socket.assigns.live_action values.
• opts: change_listeners can be enabled by passing it through opts

  form_component(name, form_key, create_action, update_action, change_listeners: true)

A complete example which reduces around 50 lines of boilerplate code form component to 3 just lines:

defmodule YourAppWeb.UserForm do
  use YourAppWeb, :live_component
  
  alias IndyFormSample.Accounts, as: Context

  use IndyForm.FormComponent, context: Context

  form_component("user", :new, :edit)
end

or can be writen in verbose 7 lines if you prefer this way:

defmodule YourAppWeb.UserForm do
  use YourAppWeb, :live_component
  
  alias IndyFormSample.Accounts, as: Context

  use IndyForm.FormComponent, context: Context

  @form_key "user"
  @create_action :new
  @edit_action :edit

  form_component(@form_key, @create_action, @edit_action)
end

Design goals of this library :

• less code injection through macros.
• less magic and more explicit configuration.
• flexibility to override everything to perform one off customizations.
• reduce boilerplate code in application.

You can read docs about forms and contexts.

And browse sample code here - https://github.com/lkarthee/indy_form_sample