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 problem did 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:in `parse_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:in `load’

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:in `open’

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:in `load_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:in `block 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:in `load_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:in `lookup’

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:in `block 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:in `save’

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:in `block 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:in `transaction’

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:in `block 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:in `save’

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:in `start’

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:in `require’

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.