严重困难:没有使用fields_for触发嵌套资源的验证

Question

我严重关注我有用户和个人资料模型的问题.无论我尝试什么,似乎都没有触发任何Profile属性的验证

• 配置文件模型属于User.用户has_one个人资料
• 在注册表单上使用fields_for显示一些个人资料字段(性别,城市和国家/地区)
• 无论我尝试了什么,我都无法让性别和城市的验证工作(fields_for个人资料字段)

我的表格:

- title t(:title, :scope => :register)
%h1= yield(:title)

  = simple_form_for(resource, :as => resource_name, :html => { :class => 'form-horizontal' } , :validate => true , :url => registration_path(resource_name)) do |f|

    = f.input :username,                  :label  => t(:username)
    = f.input :email,                     :label  => t(:email),
                                          :hint   => t(:hint_email_visible)
    = f.input :password,                  :label  => t(:password), :require => true
    = f.input :password_confirmation,     :label  => t(:password_confirm)


    - resource.build_profile
    = f.fields_for :profile do |f|

      #div

        = f.hidden_field :form, :value => "signup"

        .clear

        = f.input :gender,                :collection => [['Male', 'male'], ['Female', 'female']],
                                          :as => :radio

    = f.input :city,
              :readonly => "readonly",
              :label => t(:city)

    .ruler

    = f.input :country,
              :label => "Your country",
              :collection => [DataCountry.where(:code => 155).first],
              :value => @city,
              :id => "country",
              :name => "country"

    .clear


    = f.button :submit, t(:submit, :scope => :register) + " »"

我的用户模型有:

  accepts_nested_attributes_for :profile

带有验证的我的个人资料模型如下:

  validates_presence_of :gender
  validates_presence_of :city
  validates_presence_of :country

我的参数:

-- !ruby/hash:ActiveSupport::HashWithIndifferentAccess
utf8: ?
authenticity_token: <mytokenhere>
user: !ruby/hash:ActiveSupport::HashWithIndifferentAccess
  invite_code: ''
  username: username
  email: ''
  password: ''
  password_confirmation: ''
  profile_attributes: !ruby/hash:ActiveSupport::HashWithIndifferentAccess
    form: signup
    gender: male
    dob(3i): '9'
    dob(2i): '7'
    dob(1i): '1942'
    city: 'somevalue'
    country: 'somevalue'
commit: Register »
action: create
controller: registrations

Rails控制台做:

User.new


 => #<User id: nil, email: "", encrypted_password: "", reset_password_token: nil, reset_password_sent_at: nil, remember_created_at: nil, sign_in_count: 0, current_sign_in_at: nil, last_sign_in_at: nil, current_sign_in_ip: nil, last_sign_in_ip: nil, password_salt: nil, confirmation_token: nil, confirmed_at: nil, confirmation_sent_at: nil, unconfirmed_email: nil, failed_attempts: 0, unlock_token: nil, locked_at: nil, authentication_token: nil, username: nil, is_blocked: nil, is_deleted: nil, role: nil, slug: nil, created_at: nil, updated_at: nil, last_seen: nil, credits: nil, invite_code: nil, is_moderated: nil, locale: nil, status: nil, login_token: nil> 

Profile.new

 => #<Profile id: nil, user_id: nil, gender: nil, country: nil, state: nil, city: nil, status: nil, counter_cache: nil> 

- 更新于2012年7月19日

我加了

    - @user.errors.full_messages.each do |message|
  = message
  .clear

到表单中查看到底发生了什么,这会引发以下错误列表:

Email can't be blank
Email can't be blank
Password can't be blank
Password can't be blank
Profile city can't be blank
Profile gender can't be blank
Profile is invalid
Username can't be blank
Password confirmation can't be blank 

所以似乎检查了验证....但是没有应用错误样式!该个人资料也无效???? 我不确定,但这是指的

Answer 1

现在花了很多时间尝试解决这个问题，根据本主题中的建议，解决方案非常简单，我发现而不是

错误的：

- resource.build_profile

正确的：

- resource.build_profile unless resource.profile

这样做的作用不是清理配置文件，而是使用旧的配置文件（如果可用）...所以不会清除所有错误！希望这对将来的人有帮助！