ruby-on-rails – 神秘的ruby语法错误

class Contact < ActionMailer::Base


  def contact a_name,a_company,a_phone,a_email,a_comments
    subject    "Contact request from #{name}"
    recipients "some@address.com"
    from       "some_other@address.com"
    sent_on    Time.now
    body       { :name => a_name,:company => a_company,:phone => a_phone,:email => a_email,:comments => a_comments }
  end

end

错误是：

app/models/contact.rb:9: syntax error,unexpected tASSOC,expecting '}' body { :name => a_name,:company => a_company... ^ app/models/contact.rb:9: syntax error,expecting tCOLON2 or '[' or '.' ...{ :name => a_name,... ^ app/models/contact.rb:9: syntax error,expecting tCOLON2 or '[' or '.' ...ompany => a_company,:... ^ app/models/contact.rb:9: syntax error,expecting tCOLON2 or '[' or '.' ...,:comments => a_comme... ^ app/models/contact.rb:9: syntax error,expecting tCOLON2 or '[' or '.' ...email => a_email,:comments => a_comments,} ^

有任何想法吗？我不知道我在这里做错了什么