我试图使用只有被称为在我的控制器的具体方法一些验证:是否可以验证自定义方法?
validates_presence_of :reasons, :on => :update_description
但是我得到这个错误:
TypeError in RegistrationsController#create
nil is not a symbol
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/validations.rb:586:in `send'
/Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/validations.rb:586:in `validates_presence_of'
/Users/blah/Desktop/testApp/app/models/registration.rb:6
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in `load_without_new_constant_marking'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in `load_file'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:379:in `load_file'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:259:in `require_or_load'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:425:in `load_missing_constant'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in `const_missing'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:92:in `const_missing'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:437:in `load_missing_constant'
/Library/Ruby/Gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:96:in `const_missing'
/Users/blah/Desktop/testApp/app/controllers/registrations_controller.rb:81:in `create'
/Library/Ruby/Gems/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:1331:in `send'
我要对这个错误的方式?基本上我有一个多页面的表单,我已经把这些页面分成了他们提交的多个更新方法。在这种情况下,我使用我定义的名为update_description的方法更新注册对象。我只希望在调用此方法时进行验证。可能?
更新: 添加错误行:
def create
@registration = Registration.new(params[:registration]) //error is here
[nav logic]
end
请发布什么在这里:registrations_controller.rb:81:在'创建' – marcgg 2010-01-29 16:15:35
我加上了 – Jeff 2010-01-29 16:34:09