From fa013166df45ebc0f23eff5328c9051454cd3d01 Mon Sep 17 00:00:00 2001
From: Domenico Garofoli <d.garofoli@cantierecreativo.net>
Date: Fri, 9 Jul 2021 17:58:59 +0200
Subject: [PATCH] Add filters

---
 lib/todo_app/todos.ex              |  4 ++++
 lib/todo_app_web/live/todo_live.ex | 16 ++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/lib/todo_app/todos.ex b/lib/todo_app/todos.ex
index efa616a..4128b71 100644
--- a/lib/todo_app/todos.ex
+++ b/lib/todo_app/todos.ex
@@ -21,6 +21,10 @@ defmodule TodoApp.Todos do
     Repo.all(Todo)
   end
 
+  def list_completed_todos do
+    from(t in Todo, where: t.completed) |> Repo.all
+  end
+
   @doc """
   Gets a single todo.
 
diff --git a/lib/todo_app_web/live/todo_live.ex b/lib/todo_app_web/live/todo_live.ex
index 1f0a185..b77a91b 100644
--- a/lib/todo_app_web/live/todo_live.ex
+++ b/lib/todo_app_web/live/todo_live.ex
@@ -43,6 +43,14 @@ defmodule TodoAppWeb.TodoLive do
           </li>
         <% end %>
       </ul>
+      <footer>
+        <%= live_patch "All",
+            to: Routes.live_path(@socket, TodoAppWeb.TodoLive),
+            class: "button" %>
+        <%= live_patch "Completed",
+            to: Routes.live_path(@socket, TodoAppWeb.TodoLive, %{filter: "completed"}),
+            class: "button" %>
+      </footer>
       <%= if @show_edit_modal do %>
         <%= live_modal @socket,
             TodoAppWeb.FormComponent,
@@ -106,6 +114,14 @@ defmodule TodoAppWeb.TodoLive do
     end
   end
 
+  def handle_params(%{"filter" => filter}, _uri, socket) do
+    {:noreply,
+     socket
+     |> assign(:todos, Todos.list_completed_todos())
+     |> assign(:filter, filter)
+    }
+  end
+
   def handle_params(_params, _uri, socket) do
     {:noreply, fetch(socket)}
   end