Rails 关联 has_many 和 belongs_to 无效

Question

ArgumentError in ProposalsController#index

No association found for name `clients'. Has it been defined yet?

我在我的应用程序上遇到了这个错误。无法找到修复它的解决方案。有什么想法吗？

这是模态框：

class Client < ActiveRecord::Base
  has_paper_trail
   
  has_many :documents
  
  accepts_nested_attributes_for :documents, allow_destroy: true, reject_if: :all_blank
  
end

和

class Document < ActiveRecord::Base
  has_paper_trail
  
  belongs_to :client
  
  accepts_nested_attributes_for :clients, allow_destroy: true, reject_if: :all_blank
  
  validates :name, presence: true 
end

这是文档的控制器：

  def index
    if current_user.admin?
      @documents = Document.paginate(page: params[:page], :per_page => 20) 
    else
      @documents = Document.where("user_id = ?", current_user).paginate(page: params[:page], :per_page => 20)
    end
  end

我已将“client_id”放入文档的数据库中。
我已经在两个控制器中设置了所有安全参数。

Answer 1

您快完成了，只是漏掉了一个小细节。始终遵循解释器/编译器所说的内容，您可以找到问题所在。

在你的情况下 :clients 在 accepts_nested_attributes_for 中应该是单数，因为它是 belongs_to

class Document < ActiveRecord::Base
  has_paper_trail

  belongs_to :client

  accepts_nested_attributes_for :client, allow_destroy: true, reject_if: :all_blank

  validates :name, presence: true 
end

Rails 关联 has_many 和 belongs_to 无效

Rails associations has_many and belongs_to not working

nested

ruby-on-rails

associations

model-associations