ruby on rails - Nesting Resources 3 Levels Deep -

i have idea of going wrong, having trouble fixing it.

to explain situation again, have 3 elements : jobs, questions , answers . of relationships set below. expanding on previous question had jobs > questions relationship, have added answers relationship in jobs > questions > answers.

so, new resource in routes.rb getting routing errors, fixing going. problem occurred when got form answers#new page , had modify form_for scaffolding , build on create action in answers controller ( can see code 2 below).

i able fix enough show form on new answers page, when click submit getting error:

no route matches {:action=>"show", :controller=>"answers", :job_id=>nil, :question_id=>1, :id=>#<answer id: 3, job_id: nil, question_id: 1, answer1: "", answer2: "", answer3: "", answer4: "", answer5: "", created_at: "2011-07-01 03:12:06", updated_at: "2011-07-01 03:12:06">} 

from error can see not saving job_id , pretty sure has me not calling job_id in either answers create action or answers new form_for code. i've tried ton of solutions, nothing seems work. feel close on create action, can't right. anyways, in advance , if haven't provided without enough surrounding code, let me know , add it.

this question extenstion of post: link_to routing issue nested resources

p.s. added answers show action, because although working if go answers/1/ directly. have feeling if create action wrong, show action.

models:

class job < activerecord::base has_many :questions has_many :answers  class question < activerecord::base belongs_to :job has_many :answers  class answer < activerecord::base belongs_to :job belongs_to :question 

answers#new form

<%= form_for(@answer, :url => job_question_answers_path(@answer.job_id, @question)) |f| %> 

answers create action

def create @job = job.find(params[:job_id]) @question = @job.questions.find(params[:question_id]) @answer = @question.answers.build(params[:answer]) if @answer.save  redirect_to(job_question_answer_path(@answer.job_id, @answer.question_id, @answer) end end 

answers show action

def show  @job = job.find(params[:job_id])  @question = @job.questions.find(params[:question_id])  @answer = @question.answers.find(params[:id]) end 

see https://gist.github.com/1057810 current rake routes. know shouldn't nest more 1 layer deep, easiest , quickest solution me.

thanks again!

based on line:

no route matches {   :action=>"show", :controller=>"answers",    :job_id=>nil, #problem   :question_id=>1,    :id=>#<answer id: 3, job_id: nil, question_id: 1, answer1: "", answer2: "", answer3: "", answer4: "", answer5: "", created_at: "2011-07-01 03:12:06", updated_at: "2011-07-01 03:12:06">} 

you can see job_id in answer object nil. form helper uses job_question_answers_path requires job_id , question_id, route error broken because job_id nil (@answer.job_id):

<%= form_for(@answer, :url => job_question_answers_path(@answer.job_id, @question)) |f| %> 

try setting @answer.job in answerscontroller#new action explicitly.

def new   # may have code this...   @answer = answer.new    # guessing on param names here:   @answer.question = question.find params[:question_id]   @answer.job = job.find params[:job_id]    # alternatively, can set ids,    # above verify objects exist first.   @answer.job_id = params[:job_id]   @answer.question_id = params[:question_id] end