nicer search error message

lib/philomena_web/controllers/search_controller.ex

@@ -24,10 +24,11 @@ defmodule PhilomenaWeb.SearchController do
       conn
       |> render("index.html", images: images, search_query: params["q"])
     else
-      {:error, _msg} ->
+      {:error, msg} ->
         conn
         |> render("index.html",
           images: [],
+          error: msg,
           search_query: params["q"]
         )
     end

lib/philomena_web/templates/search/index.html.slime

@@ -1 +1,10 @@
+= cond do
+  - Enum.any?(@images) ->
     = render PhilomenaWeb.ImageView, "index.html", conn: @conn, images: @images, route: fn p -> Routes.search_path(@conn, :index, p) end, params: [q: @search_query]
+  - assigns[:error] ->
+    p
+      ' Oops, there was an error evaluating your query:
+    pre = assigns[:error]
+  - true ->
+    p
+      ' No images found!