mirror of
https://github.com/philomena-dev/philomena.git
synced 2024-12-11 03:28:01 +01:00
39 lines
1.1 KiB
Elixir
39 lines
1.1 KiB
Elixir
defmodule PhilomenaWeb.Page.HistoryController do
|
|
use PhilomenaWeb, :controller
|
|
|
|
alias Philomena.StaticPages.StaticPage
|
|
alias Philomena.StaticPages.Version
|
|
alias Philomena.Repo
|
|
import Ecto.Query
|
|
|
|
plug :load_resource, model: StaticPage, id_name: "page_id", id_field: "slug", persisted: true
|
|
|
|
def index(conn, _params) do
|
|
page = conn.assigns.static_page
|
|
|
|
{versions, _last_body} =
|
|
Version
|
|
|> where(static_page_id: ^page.id)
|
|
|> preload(:user)
|
|
|> order_by(desc: :created_at)
|
|
|> Repo.all()
|
|
|> generate_differences(page.body)
|
|
|
|
render(conn, "index.html",
|
|
title: "Revision History for Page `#{page.title}'",
|
|
layout_class: "layout--wide",
|
|
versions: versions
|
|
)
|
|
end
|
|
|
|
defp generate_differences(pages, current_body) do
|
|
Enum.map_reduce(pages, current_body, fn page, previous_body ->
|
|
difference = List.myers_difference(split(page.body), split(previous_body))
|
|
|
|
{%{page | difference: difference}, page.body}
|
|
end)
|
|
end
|
|
|
|
defp split(nil), do: ""
|
|
defp split(body), do: String.split(body, "\n")
|
|
end
|