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with_options

#42 with_options

Jun 08, 2007 | 3 minutes | Active Support
Several methods in rails take a hash of options as the last argument. If you are passing the same options to several methods, you can remove this duplication by using with_options. Learn all about it in this episode.
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models/user.rb 
with_options :if => :should_validate_password? do |user|
  user.validates_presence_of :password
  user.validates_confirmation_of :password
  user.validates_format_of :password, :with => /^[^\s]+$/
end

attr_accessor :updating_password

def should_validate_password?
  updating_password || new_record?
end
routes.rb 
map.with_options :controller => 'sessions' do |sessions|
  sessions.login 'login', :action => 'new'
  sessions.logout 'logout', :action => 'destroy'
end