Home/ Questions/Q 5938589
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-22T15:42:27+00:00

So I have a simple application as in RailsCast about nested forms. and a

  • 0

So I have a simple application as in RailsCast about nested forms. and a problem is that when I submit the form (with survey and questions) the questions are not saved.

My models (Survey, that has many Questions):

class Survey
  include Mongoid::Document
  field :name
  has_many :questions, :dependent => :destroy
  accepts_nested_attributes_for :questions, :allow_destroy => true
end

class Question
  include Mongoid::Document
  field :content
  belongs_to :survey
end

and Survey Controller:

def new
    @survey = Survey.new
    3.times {@survey.questions.build}
....

and a view:

<%= form_for(@survey) do |f| %>
    <%= f.fields_for :questions do |builder| %>
    <%= builder.label :content, "Question" %><br />
    <%= builder.text_area :content, :rows => 3 %><br />
    <%= builder.check_box :_destroy %>
    <%= builder.label :_destroy, "Remove Question" %>
    <% end %>
...

In my log I have:

    Started POST "/surveys" for 127.0.0.1 at 2011-05-24 13:26:51 +0400
  Processing by SurveysController#create as HTML
  Parameters: {"utf8"=>"G£ô", "authenticity_token"=>"tX0FfMiLbh1BwjuY4CuvAKt2UpTraY3vmdo58ocBnos=", "survey"=>{"name"=>"
Rails", "questions_attributes"=>{"0"=>{"content"=>"Are you fond of Rails?", "_destroy"=>"0"}, "1"=>{"content"=>"Rails is
 the best, ha?", "_destroy"=>"0"}, "2"=>{"content"=>"How many railscasts have you watched?", "_destroy"=>"0"}}}, "commit
"=>"Create Survey"}
MONGODB nested_attributes_development['surveys'].insert([{"name"=>"Rails", "_id"=>BSON::ObjectId('4ddb79dba5372914380000
69')}])
Redirected to http://localhost:3000/surveys/4ddb79dba537291438000069
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    The answer was found in google groups so I just duplicate it:

    MONGODB 
nested_attributes_development['surveys'].insert([{"name"=>"Rails", 
"_id"=>BSON::ObjectId('4ddb79dba5372914380000 
69')}])

    This does not save to question collections which is not done with
    mongoid in default.
    Just add has_many :questions, :dependent => :destroy , :autosave =>
    true
    This should work.

    cf. http://mongoid.org/docs/upgrading.html for further details.

    • 0