CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3.1
eforth
eforth

Reputation: 47

No Routes Matches

There is an association with course and course instance. When I visit the url /courses/1/course_instances/new, I get the error below.

This is the error I got:

No route matches {:controller=>"course_instances", :course_id=>nil}

Models

Course:

class Course < ActiveRecord::Base
   attr_accessible :code, :credits, :description, :hours, :id, :name, :pass_mark
   has_many :course_instances, :dependent => :destroy
   accepts_nested_attributes_for :course_instances
end

Course Instance

class CourseInstance < ActiveRecord::Base
   attr_accessible :end_date, :id, :start_date
   belongs_to :course
end

Routes

Sis::Application.routes.draw do
   resources :courses do
     resources :course_instances
   end
   root :to => 'home#index'
end

Course Instance Controller

class CourseInstancesController < ApplicationController

  before_filter :find_course

  def new
    @course_instance = @course.course_instances.build
    respond_to do |format|
       format.html
    end
  end

  def find_course
    @course = Course.find(params[:course_id])
  end
end

new.html.erb

<%= form_for ([@course, @course_instance]) do |f| %>
   ---- excluded for brevity ----

Rake Routes

new_course_course_instance GET    /courses/:course_id/course_instances/new(.:format)     course_instances#new

Upvotes: 0

Views: 127

Answers (1)

eforth
eforth

Reputation: 47

Am not sure what I did but it started to work. I tried backtracking to recreate the error however I have been unsuccessful so far. Weird! Thanks for the help from everyone!

Upvotes: 0

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