multiple nested forms are unable to update child elements

[ghost]

Hello Ryan

I am working on a survey app. where Survey has_many questions and question has_many options. Pretty much same as from your example.

everything works while creating the survey. it creates Survey, Questions and Options. But when updating.. it doesnt update Options for a given question.

I am using Rails 2.3.14
actionmailer (2.3.14)
actionpack (2.3.14)
activerecord (2.3.14)
activeresource (2.3.14)
activesupport (2.3.14)
Ascii85 (1.0.1)
attr_encrypted (1.1.2)
builder (3.0.0)
bundler (1.1.3, 1.0.18, 1.0.17)
daemons (1.0.10)
delayed_job (2.0.7, 1.8.5)
eigenclass (1.1.1)
encryptor (1.1.3)
factory_girl (2.6.3)
faker (1.0.1)
fastercsv (1.5.4)
haml (3.1.4)
hoptoad_notifier (2.4.11)
htmlentities (4.3.1)
httparty (0.8.1)
i18n (0.4.2)
json (1.7.0)
mail (2.4.3)
metaclass (0.0.1)
mime-types (1.17.2)
mocha (0.10.5)
multi_json (1.1.0)
multi_xml (0.4.2)
nokogiri (1.5.2)
oauth (0.4.5)
pdf-reader (1.0.0)
pg (0.13.2)
polyglot (0.3.3)
prawn (0.12.0)
rack (1.1.3)
rails (2.3.14)
rake (0.9.2.2, 0.9.2)
RedCloth (4.2.9)
right_aws (3.0.3)
right_http_connection (1.3.0)
ruby-net-ldap (0.0.4)
ruby-ole (1.2.11.3)
ruby-rc4 (0.1.5)
sanitize (2.0.3)
settingslogic (2.0.8)
spreadsheet (0.6.8)
state_machine (1.1.2)
tiny_mce (0.1.8)
treetop (1.4.10)
truncate_html (0.3.2)
ttfunk (1.0.3)

and rubygem version is 1.8.6

my codebase matches exactly with your episode 196.

params looks OK as well. not sure what this could be. you think version of rubygems can make a difference?

Ajit

[ghost]

this solution worked:

def update
questions = params[:survey].delete(:questions_attributes)

@survey = Survey.find(params[:id])

if @survey.update_attributes(params[:survey])
  @survey.update_attributes(:questions_attributes => questions)
  redirect_to edit_survey_path(@survey)
else
  render :action => :edit
end

end

any idea why @survey.update_attributes(params[:survey]) is not working but above method is?