Create Controller for Post Pagination

lib/diskuy_web/controllers/post_pages_controller.ex

+defmodule DiskuyWeb.PostPagesController do
+  use DiskuyWeb, :controller
+  alias Diskuy.ForumPostPage
+  alias Diskuy.Repo
+
+
+  # Pages Per threads
+  def pages_thread(conn, %{"thread_id" => thread_id, "page" => page_num}) do
+    page = ForumPostPage.page_per_thread(thread_id) |> Repo.paginate(page: page_num)
+    with %{entries: _entries} <- page do
+      render(conn, "pages.json", %{page: page})
+    end
+  end
+
+  def pages_thread(conn, %{"thread_id" => thread_id}) do
+    page = ForumPostPage.page_per_thread(thread_id) |> Repo.paginate()
+    with %{entries: _entries} <- page do
+      render(conn, "pages.json", %{page: page})
+    end
+  end
+
+end