Add initial file upload

lib/wiki_web/controllers/page_controller.ex

@@ -65,7 +65,7 @@ defmodule WikiWeb.PageController do
     render(conn, "new.html", changeset: changeset)
   end
 
-  def create(conn, %{"page" => page_params}) do
+  def create(conn, %{"page" => page_params} = params) do
     key = get_session(conn, :content_encryption_key)
 
     page_params =
@@ -75,6 +75,18 @@ defmodule WikiWeb.PageController do
 
     case Content.create_page(page_params) do
       {:ok, page} ->
+        file = Map.get(params, "initial_file")
+
+        unless is_nil(file) do
+          decoded_key = Base.decode16!(key, case: :lower)
+
+          changeset =
+            Upload.create_from_plug(file, decoded_key)
+            |> Upload.changeset(%{page_id: page.id})
+
+          {:ok, _upload} = Repo.insert(changeset)
+        end
+
         conn
         |> put_flash(:info, "Page created successfully.")
         |> redirect(to: Routes.page_path(conn, :show, page))

lib/wiki_web/templates/page/edit.html.eex

@@ -1,6 +1,6 @@
 <h1>Edit Page</h1>
 
-<%= render "form.html", Map.put(assigns, :action, Routes.page_path(@conn, :update, @page)) %>
+<%= render "form.html", assigns |> Map.put(:action, Routes.page_path(@conn, :update, @page)) |> Map.put(:initial_file, false) %>
 
 <h2>Uploaded Files</h2>
 <table>

lib/wiki_web/templates/page/form.html.eex

@@ -1,4 +1,4 @@
-<%= form_for @changeset, @action, fn f -> %>
+<%= form_for @changeset, @action, [multipart: true], fn f -> %>
   <%= if @changeset.action do %>
     <div class="alert alert-danger">
       <p>Oops, something went wrong! Please check the errors below.</p>
@@ -13,6 +13,12 @@
   <%= textarea f, :content %>
   <%= error_tag f, :content %>
 
+
+  <%= if @initial_file do %>
+    <label for="initial_file">File</label>
+    <input type="file" name="initial_file" id="initial_file">
+  <% end %>
+
   <div>
     <%= submit "Save" %>
   </div>

lib/wiki_web/templates/page/new.html.eex

@@ -1,5 +1,5 @@
 <h1>New Page</h1>
 
-<%= render "form.html", Map.put(assigns, :action, Routes.page_path(@conn, :create)) %>
+<%= render "form.html", assigns |> Map.put(:action, Routes.page_path(@conn, :create)) |> Map.put(:initial_file, true) %>
 
 <span><%= link "Back", to: Routes.page_path(@conn, :index) %></span>