add nicer lookup error handlers

config/config.exs

@@ -44,7 +44,9 @@ config :elastix,
   json_codec: Jason
 
 config :canary,
-  repo: Philomena.Repo
+  repo: Philomena.Repo,
+  unauthorized_handler: {PhilomenaWeb.NotAuthorizedPlug, :call},
+  not_found_handler: {PhilomenaWeb.NotFoundPlug, :call}
 
 # Configures the endpoint
 config :philomena, PhilomenaWeb.Endpoint,

lib/philomena_web/plugs/not_authorized_plug.ex

@@ -0,0 +1,14 @@
+defmodule PhilomenaWeb.NotAuthorizedPlug do
+  alias Phoenix.Controller
+  alias Plug.Conn
+
+  def init([]), do: []
+
+  def call(conn), do: call(conn, nil)
+  def call(conn, _opts) do
+    conn
+    |> Controller.put_flash(:error, "You can't access that page.")
+    |> Controller.redirect(to: conn.assigns.referrer)
+    |> Conn.halt()
+  end
+end

lib/philomena_web/plugs/not_found_plug.ex

@@ -0,0 +1,14 @@
+defmodule PhilomenaWeb.NotFoundPlug do
+  alias Phoenix.Controller
+  alias Plug.Conn
+
+  def init([]), do: []
+
+  def call(conn), do: call(conn, nil)
+  def call(conn, _opts) do
+    conn
+    |> Controller.put_flash(:error, "Couldn't find what you were looking for!")
+    |> Controller.redirect(to: conn.assigns.referrer)
+    |> Conn.halt()
+  end
+end

lib/philomena_web/templates/image/_image_container.html.slime

@@ -38,7 +38,7 @@
         picture
           img alt=hover_text
 
-      - {:filtered_video, hover_text}
+      - {:filtered_video, hover_text} ->
         video autoplay="autoplay" muted="muted" loop="loop" playsinline="playsinline"
         img alt=hover_text
 

lib/search/evaluator.ex

@@ -49,7 +49,7 @@ defmodule Search.Evaluator do
     query_re = wildcard_to_regex(query_val)
 
     wrap(doc[atomify(term)])
-    |> Enum.any?(&Regex.match?(query_re, &1))
+    |> Enum.any?(&Regex.match?(query_re, &1 || ""))
   end
 
   def hits?(doc, %{match_phrase: phrase_query}) do