Ruby on rails. How to format errors.full_messages?

I have such validation structures:

validates :upload_file_name,  :presence   => true,
                              :format     =>{:with =>

%r{.(jpg)$}i,:message =>“should have an extension .jpg”}

validates_uniqueness_of :upload_file_name, :message => "is already 

in
the database"

And when I type in rails console and i get the following answer

 > s.errors.full_messages

 => ["Upload file name is already in the database"]

I need the message to be only “is already in the database” without
“Upload
file name”

How can I do it? This second solution of this
problemhttp://stackoverflow.com/questions/4370503/why-doesnt-rails-errors-full-messages-replace-attribute-and-message-variabledid
not help me as I get an error:

en:
  activerecord:
errors:
full_messages:
format:"%{attribute} %{message}"



1.9.3-p286 :002 > s.save()
   (0.2ms)  begin transaction
  Upload Exists (0.3ms)  SELECT 1 AS one FROM "uploads" WHERE

“uploads”.“upload_file_name” = ‘Katja.jpg’ LIMIT 1
(0.3ms) rollback transaction
Psych::SyntaxError:
(/home/katja/Desktop/tors-jquery-fileupload-rails-paperclip-example-b0b9934/config/locales/en.yml):
found character that cannot start any token while scanning for the next
token at line 6 column 1
from
/home/katja/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/1.9.1/psych.rb:203:in
parse' from /home/katja/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/1.9.1/psych.rb:203:inparse_stream’
from
/home/katja/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/1.9.1/psych.rb:151:in
parse' from /home/katja/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/1.9.1/psych.rb:127:inload’
from
/home/katja/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/1.9.1/psych.rb:297:in
block in load_file' from /home/katja/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/1.9.1/psych.rb:297:inopen’
from
/home/katja/.rvm/rubies/ruby-1.9.3-p286/lib/ruby/1.9.1/psych.rb:297:in
load_file' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/base.rb:171:inload_yml’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/base.rb:157:in
load_file' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/base.rb:15:inblock in load_translations’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/base.rb:15:in
each' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/base.rb:15:inload_translations’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/simple.rb:57:in
init_translations' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/simple.rb:71:inlookup’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n/backend/base.rb:26:in
translate' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/i18n-0.6.0/lib/i18n.rb:156:inblock in translate’
… 25 levels…
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/validations.rb:50:in
save' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/attribute_methods/dirty.rb:22:insave’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/transactions.rb:241:in
block (2 levels) in save' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/transactions.rb:295:inblock in with_transaction_returning_status’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in
transaction' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/transactions.rb:208:intransaction’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/transactions.rb:293:in
with_transaction_returning_status' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/transactions.rb:241:inblock in save’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/transactions.rb:252:in
rollback_active_record_state!' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/activerecord-3.2.6/lib/active_record/transactions.rb:240:insave’
from (irb):2
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/railties-3.2.6/lib/rails/commands/console.rb:47:in
start' from /home/katja/.rvm/gems/ruby-1.9.3-p286/gems/railties-3.2.6/lib/rails/commands/console.rb:8:instart’
from
/home/katja/.rvm/gems/ruby-1.9.3-p286/gems/railties-3.2.6/lib/rails/commands.rb:41:in
<top (required)>' from script/rails:6:inrequire’

Thanks in advanced.

I know this is a super late reply, but for anyone else stumbling across
this question: looks like the problem here is that psych is choking on
the
tab characters, which are not valid yaml. You need to use spaces for
indentation.

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