A group of boolean inputs that represent a map, or embedded schema where each value is a boolean. Useful for embedding features, permissions, or roles into a schema.

If the field represents and embedded schema as an embeds_one, the field will set a default set of options based on the fields of the embedded schema. It assumes that every field in the embed is a boolean:

defmodule Permissions do
  use Ecto.Schema

  embedded_schema do
    field :read, :boolean, default: false
    field :write, :boolean, default: false
    field :delete, :boolean, default: false
  end

  def changeset(permissions, attrs) do
    cast(permission, attrs, [:read, :write, :delete])
  end
end

defmodule Post do
  use Ecto.Schema

  schema "posts" do
    field :title, :string
    embeds_one :permissions, Permissions
  end
end


def PostResource do
  use ExTeal.Resource
  def model, do: Post

  def fields, do: [
    Text.make(:title),
    BooleanGroup.make(:permissions)
  ]
end

You can also define a boolean group over a plain map type and manually define the options as a map of keys and labels:

defmodule Post do
  use Ecto.Schema

  schema "posts" do
    field :title, :string
    field :permissions, :map
  end
end

def PostResource do
  use ExTeal.Resource
  def model, do: Post

  def fields, do: [
    Text.make(:title),
    BooleanGroup.make(:permissions)
    |> BooleanGroup.options(%{
      "read" => "Read",
      "write" => "Write"
    })
  ]
end

The options function can also be used to override the default options when used with an embedded schema if the options need to be translated into human readable values.