Pourquoi suis-je obtenir cette “undefined method `#<ActiveRecord::Associations::CollectionProxy::ActiveRecord_Associations_Collectionproxy_survey d'erreur”?

J'ai les associations suivantes:

class Question < ActiveRecord::Base
  has_and_belongs_to_many :footnotes
  has_and_belongs_to_many :pictures
  has_many :fields, :dependent => :destroy
  has_many :surveys, :dependent => :delete_all
  belongs_to :input
  belongs_to :element
  has_many :screenshots
  belongs_to :standard, :touch => true
  belongs_to :product, :touch => true
  belongs_to :condition, :class_name => "Field", :touch => true
end

class Product < ActiveRecord::Base
  has_many :questions, :dependent => :destroy
  has_many :reviews
  has_and_belongs_to_many :orders
  has_many :competitors
  has_many :elements, :dependent => :destroy
  has_many :fields
end

class Element < ActiveRecord::Base
  has_many :questions
  has_many :standards
  belongs_to :product, :touch => true
end

class Standard < ActiveRecord::Base
  has_many :questions
  has_many :standards
  belongs_to :review
end

class Footnote < ActiveRecord::Base
  belongs_to :reference, :touch => true
  has_and_belongs_to_many :questions
end

Pourquoi, alors, dois-je obtenir la suivante?

From: /Users/steven/Dropbox/Testivate/app/controllers/questions_controller.rb @ line 80 QuestionsController#update:
79: def update
=> 80:   binding.pry_remote
81:   @question = Question.find(params[:id])
82:   @question.update_attributes(params[:question])
83:   @question.update_columns :product_id => @question.element.product.id
84:   flash[:notice] = "Question was successfully updated. (#{undo_link(@question)}.)" if @question.save
85:   respond_with @question
86: end
[1] pry(#<QuestionsController>)> @question = Question.find(params[:id])
+----+-----+-----+-----+-----+-----+------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
| id | sta | des | ele | con | cre | upda | add | ins | act | ite | pro | inp | man | abo | res | lev | com | met |
+----+-----+-----+-----+-----+-----+------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
| 1  | 1   | Is  | 1   |     | 201 | 2014 | tru | On  | fal | 1   | 1   |     | fal |     |     | 0   | fal | fal |
+----+-----+-----+-----+-----+-----+------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
1 row in set
[2] pry(#<QuestionsController>)> params
=> {"utf8"=>"✓",
"_method"=>"patch",
"question"=>
{"description"=>"Is it readable?",
"element_id"=>"1",
"standard_id"=>"1",
"about"=>"",
"additive"=>"true",
"iterations"=>"1",
"instructions"=>"On the homepage, there is:",
"picture_ids"=>[""],
"footnote_ids"=>[""],
"active"=>"0",
"manual"=>"0"},
"commit"=>"Update Question",
"action"=>"update",
"controller"=>"questions",
"id"=>"1"}
[3] pry(#<QuestionsController>)> @question.save
=> true
[4] pry(#<QuestionsController>)> @question.update_attributes(params[:question])
NoMethodError: undefined method `#<ActiveRecord::Associations::CollectionProxy::ActiveRecord_Associations_CollectionProxy_Survey:0x0000010b21ce90>' for #<Question:0x0000010c0dda38>
from /Users/steven/.rvm/gems/ruby-2.1.0/gems/activemodel-4.0.2/lib/active_model/attribute_methods.rb:439:in `method_missing'
désolé pour le hors-sujet, mais comment avez-vous Soulever pour afficher les résultats de base de données dans une table?
Je suppose que c'est Hirb: github.com/cldwalker/hirb

OriginalL'auteur steven_noble | 2014-02-27