Rename media sources (#25)

* Renamed MediaSource to Sources

* Renamed MediaItem controller namespace

lib/pinchflat_web/controllers/media_items/media_item_controller.ex

@@ -0,0 +1,30 @@
+defmodule PinchflatWeb.MediaItems.MediaItemController do
+  use PinchflatWeb, :controller
+
+  alias Pinchflat.Media
+
+  def show(conn, %{"id" => id}) do
+    media_item = Media.get_media_item!(id)
+
+    render(conn, :show, media_item: media_item)
+  end
+
+  def delete(conn, %{"id" => id} = params) do
+    delete_files = Map.get(params, "delete_files", false)
+    media_item = Media.get_media_item!(id)
+
+    if delete_files do
+      {:ok, _} = Media.delete_media_item_and_attachments(media_item)
+
+      conn
+      |> put_flash(:info, "Record and files deleted successfully.")
+      |> redirect(to: ~p"/sources/#{media_item.source_id}")
+    else
+      {:ok, _} = Media.delete_media_item(media_item)
+
+      conn
+      |> put_flash(:info, "Record deleted successfully. Files were not deleted.")
+      |> redirect(to: ~p"/sources/#{media_item.source_id}")
+    end
+  end
+end