# `Narabe.Ordered`
[🔗](https://github.com/hattoriai/narabe/blob/v0.1.0/lib/narabe/ordered.ex#L1)

A schema's order, declared once: the options of `Narabe.Ecto` that every
call on the schema then takes.

    defmodule MyApp.Board.Card do
      use Ecto.Schema

      schema "cards" do
        field :title, :string
        field :position, :string
        belongs_to :column, MyApp.Board.Column
      end

      use Narabe.Ordered, group: :column_id
    end

    defmodule MyApp.Docs.Page do
      use Ecto.Schema

      schema "pages" do
        field :title, :string
        field :kind, :string
        field :position, :string
        belongs_to :parent, __MODULE__
      end

      use Narabe.Ordered,
        group: :parent_id,
        tree: true,
        kind: :kind,
        rules: [nest: true, max_depth: 8, leaves: ["file"]]
    end

Then `Narabe.Ecto.move(Repo, Page, move)` knows the rest, and an option
given to a call wins over the schema's.

Options: those of `Narabe.Ecto` (`:group`, `:tree`, `:position`,
`:rules`, `:kind`, `:group_kind`, `:lock`, `:rebalance_at`).

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*Consult [api-reference.md](api-reference.md) for complete listing*