wiki/lib/wiki_web/controllers/page_controller.ex

94 lines
2.4 KiB
Elixir

defmodule WikiWeb.PageController do
use WikiWeb, :controller
alias Wiki.Content
alias Wiki.Content.Page
plug :get_page when action in [:show, :edit, :update, :delete]
defp get_page(%Plug.Conn{path_params: %{"id" => id}} = conn, _opts) do
case Content.get_page(id) do
nil ->
conn
|> send_resp(404, "Not found")
|> halt()
page ->
key = get_session(conn, :content_encryption_key)
page = %Page{page | content_encryption_key: key}
page =
if action_name(conn) in [:show, :edit] do
Page.decrypt_content(page)
else
page
end
assign(conn, :page, page)
end
end
def index(conn, _params) do
pages = Content.list_pages()
render(conn, "index.html", pages: pages)
end
def new(conn, _params) do
changeset = Content.change_page(%Page{})
render(conn, "new.html", changeset: changeset)
end
def create(conn, %{"page" => page_params}) do
key = get_session(conn, :content_encryption_key)
page_params =
page_params
|> Map.put("user_id", conn.assigns.current_user.id)
|> Map.put("content_encryption_key", key)
case Content.create_page(page_params) do
{:ok, page} ->
conn
|> put_flash(:info, "Page created successfully.")
|> redirect(to: Routes.page_path(conn, :show, page))
{:error, %Ecto.Changeset{} = changeset} ->
render(conn, "new.html", changeset: changeset)
end
end
def show(conn, _params) do
render(conn, "show.html", page: conn.assigns.page)
end
def edit(conn, _params) do
page = conn.assigns.page
changeset = Content.change_page(page)
render(conn, "edit.html", page: page, changeset: changeset)
end
def update(conn, %{"page" => page_params}) do
page = conn.assigns.page
case Content.update_page(page, page_params) do
{:ok, page} ->
conn
|> put_flash(:info, "Page updated successfully.")
|> redirect(to: Routes.page_path(conn, :show, page))
{:error, %Ecto.Changeset{} = changeset} ->
render(conn, "edit.html", page: page, changeset: changeset)
end
end
def delete(conn, _params) do
page = conn.assigns.page
{:ok, _page} = Content.delete_page(page)
conn
|> put_flash(:info, "Page deleted successfully.")
|> redirect(to: Routes.page_path(conn, :index))
end
end