Use file template to generate new file content

db/migrate/20160610111602_add_file_template_to_file.rb

@@ -0,0 +1,5 @@
+class AddFileTemplateToFile < ActiveRecord::Migration
+  def change
+    add_reference :files, :file_template
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160609185708) do
+ActiveRecord::Schema.define(version: 20160610111602) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -140,6 +140,7 @@ ActiveRecord::Schema.define(version: 20160609185708) do
     t.string   "feedback_message"
     t.float    "weight"
     t.string   "path"
+    t.integer  "file_template_id"
   end
 
   add_index "files", ["context_id", "context_type"], name: "index_files_on_context_id_and_context_type", using: :btree