From a709cd04794543e7bf160ee79ee9e1caf82fbabb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sen=C3=A9n=20Rodero=20Rodr=C3=ADguez?=
 <senenrodero@gmail.com>
Date: Mon, 24 Jul 2017 16:19:35 +0200
Subject: [PATCH] Add accept HTML attribute to documents form file input.

---
 app/helpers/documentables_helper.rb | 6 ++++++
 app/views/documents/_form.html.erb  | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/app/helpers/documentables_helper.rb b/app/helpers/documentables_helper.rb
index 77d1cbdf7..a9da06506 100644
--- a/app/helpers/documentables_helper.rb
+++ b/app/helpers/documentables_helper.rb
@@ -16,6 +16,12 @@ module DocumentablesHelper
     documentable.class.accepted_content_types
   end
 
+  def accepted_content_types_extensions(documentable)
+    documentable.class.accepted_content_types
+                .collect{ |content_type| ".#{content_type.split("/").last}" }
+                .join(",")
+  end  
+
   def humanized_accepted_content_types(documentable)
     documentable.class.accepted_content_types
                 .collect{ |content_type| content_type.split("/").last }
diff --git a/app/views/documents/_form.html.erb b/app/views/documents/_form.html.erb
index 6cb596a3a..11abe37f5 100644
--- a/app/views/documents/_form.html.erb
+++ b/app/views/documents/_form.html.erb
@@ -16,7 +16,9 @@
 
     <div class="small-12 column">
       <div class="file-name">
-        <%= f.file_field :attachment, label: false, class: 'show-for-sr' %>
+        <%= f.file_field :attachment,
+                         accept: accepted_content_types_extensions(@document.documentable),
+                         label: false, class: 'show-for-sr' %>
         <%= f.label :attachment, t("documents.form.attachment_label"), class: 'button hollow' %>
         <p><%= document_attachment_file_name(@document) %></p>
       </div>