我有以下型号
members(id, name, company_id)
companies(id, name, ...)
现在，当我使用设计模型进行注册时，members我想在companies模型中创建一条记录，并在company_id模型中更新members。
我可以在注册中建立公司，如下所示
class Brands::Members::RegistrationsController < Devise::RegistrationsController
before_action :configure_sign_up_params, only: [:create]
# before_action :configure_account_update_params, only: [:update]
# GET /resource/sign_up
def new
build_resource({})
resource.build_company
respond_with self.resource
end
end
会员模型
class Member < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
acts_as_paranoid
attr_accessor :company_name
# Associations
belongs_to :company
accepts_nested_attributes_for :company
end
公司模式
class Company < ActiveRecord::Base
extend FriendlyId
# friendly_id :name, use: :slugged
acts_as_paranoid
@company_type = %w(agency brand)
# Associations
has_many :members, dependent: :destroy
has_many :brands, dependent: :destroy
end
注册表
<h2>Sign up</h2>
<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
<%= devise_error_messages! %>
<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name, autofocus: true, value: 'Harha MV' %>
</div>
<div class="field">
<%= f.label :email %><br />
<%= f.email_field :email, value: 'harsha@mink7.com' %>
</div>
<div class="field">
<%= f.label :password %>
<% if @minimum_password_length %>
<em>(<%= @minimum_password_length %> characters minimum)</em>
<% end %><br />
<%= f.password_field :password, autocomplete: "off", value: 'harsha' %>
</div>
<h4>Enter your company details</h4>
<%= f.fields_for :company do |fc| %>
<div class="field">
<%= fc.label :name %><br />
<%= fc.text_field :name, value: 'Mink7' %>
</div>
<% end %>
<div class="actions">
<%= f.submit "Sign up" %>
</div>
<% end %>
<%= render "brands/members/shared/links" %>
错误
NoMethodError at /members
undefined method `' for #<Company:0x007f99fc7e5638>
method_missing
activemodel (4.2.5.2) lib/active_model/attribute_methods.rb
def method_missing(method, *args, &block)
if respond_to_without_attributes?(method, true)
super
else
match = match_attribute_method?(method.to_s)
match ? attribute_missing(match, *args, &block) : super
end
end
命令行转储
NoMethodError - undefined method `created_by' for #<Company:0x007f9a04e65550>:
activemodel (4.2.5.2) lib/active_model/attribute_methods.rb:433:in `method_missing'
activemodel (4.2.5.2) lib/active_model/validator.rb:149:in `block in validate'
activemodel (4.2.5.2) lib/active_model/validator.rb:148:in `validate'
activerecord (4.2.5.2) lib/active_record/validations/presence.rb:5:in `validate'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:455:in `block in make_lambda'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:192:in `block in simple'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:504:in `block in call'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:504:in `call'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:778:in `_run_validate_callbacks'
activemodel (4.2.5.2) lib/active_model/validations.rb:399:in `run_validations!'
activemodel (4.2.5.2) lib/active_model/validations/callbacks.rb:113:in `block in run_validations!'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:778:in `_run_validation_callbacks'
activemodel (4.2.5.2) lib/active_model/validations/callbacks.rb:113:in `run_validations!'
activemodel (4.2.5.2) lib/active_model/validations.rb:338:in `valid?'
activerecord (4.2.5.2) lib/active_record/validations.rb:58:in `valid?'
activerecord (4.2.5.2) lib/active_record/autosave_association.rb:324:in `association_valid?'
activerecord (4.2.5.2) lib/active_record/autosave_association.rb:303:in `validate_single_association'
activerecord (4.2.5.2) lib/active_record/autosave_association.rb:217:in `block in define_autosave_validation_callbacks'
activerecord (4.2.5.2) lib/active_record/autosave_association.rb:157:in `block in define_non_cyclic_method'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:432:in `block in make_lambda'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:192:in `block in simple'
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newrelic_rpm (3.15.0.314) lib/new_relic/agent/instrumentation/active_record_helper.rb:25:in `save'
() Users/harshamv/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/bundler/gems/devise-342304375946/app/controllers/devise/registrations_controller.rb:17:in `create'
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actionpack (4.2.5.2) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.5.2) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
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activesupport (4.2.5.2) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
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actionpack (4.2.5.2) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.5.2) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.5.2) lib/action_controller/metal.rb:196:in `dispatch'
actionpack (4.2.5.2) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.5.2) lib/action_controller/metal.rb:237:in `block in action'
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rack (1.6.4) lib/rack/head.rb:13:in `call'
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activerecord (4.2.5.2) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
newrelic_rpm (3.15.0.314) lib/new_relic/agent/instrumentation/middleware_tracing.rb:96:in `call'
activerecord (4.2.5.2) lib/active_record/migration.rb:377:in `call'
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rack (1.6.4) lib/rack/lock.rb:17:in `call'
newrelic_rpm (3.15.0.314) lib/new_relic/agent/instrumentation/middleware_tracing.rb:96:in `call'
actionpack (4.2.5.2) lib/action_dispatch/middleware/static.rb:116:in `call'
newrelic_rpm (3.15.0.314) lib/new_relic/agent/instrumentation/middleware_tracing.rb:96:in `call'
rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
newrelic_rpm (3.15.0.314) lib/new_relic/agent/instrumentation/middleware_tracing.rb:96:in `call'
railties (4.2.5.2) lib/rails/engine.rb:518:in `call'
railties (4.2.5.2) lib/rails/application.rb:165:in `call'
newrelic_rpm (3.15.0.314) lib/new_relic/agent/instrumentation/middleware_tracing.rb:96:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
rack (1.6.4) lib/rack/content_length.rb:15:in `call'
rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
/Users/harshamv/.rbenv/versions/2.2.2/lib/ruby/2.2.0/webrick/httpserver.rb:138:in `service'
/Users/harshamv/.rbenv/versions/2.2.2/lib/ruby/2.2.0/webrick/httpserver.rb:94:in `run'
/Users/harshamv/.rbenv/versions/2.2.2/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'
答案 0 :(得分：1)
从 f.fields_for 中删除 f。，如下所示Reference Link
<%= fields_for :company do |company| %>
<div class="field">
<%= company.label :name, 'Company' %>
<%= company.text_field :name %>
</div>
<% end %>