creating helper method and using it in the view

Signed-off-by: man13 <man13@inf.ufpr.br>

app/helpers/learning_objects/builder_helper.rb

+module LearningObjects::BuilderHelper
+  def get_mime_types learning_object
+    @learning_object.object_type.mime_types.map(&:extension)
+  end
+end
\ No newline at end of file

app/views/learning_objects/build/_file_upload_form.html.erb

@@ -161,7 +161,7 @@
             maxFiles: 3,
             simultaneousUploads: 4,
             chunkSize: 1024 * 256,
-            fileType: []
+            fileType: <%= raw(get_mime_types @learning_object) %>
         });
 
         var results = $('#results'),