I am following along in Ben Scofield's book (Practical REST on Rails 2 Proj=
ects). As I was building the MovieList application, I ran into an undefined=
 method for each, which I can't figure out how to debug (I am new to ruby/r=
ails).

Can someone point me in the correct direction on how to debug this issue?



NoMethodError in MoviesController#update

undefined method `each' for #<Role:0x56ea30c>

RAILS_ROOT: E:/study/rails/movielist

Application Trace<http://localhost:3000/movies/1> | Framework Trace<http://=
localhost:3000/movies/1> | Full Trace<http://localhost:3000/movies/1>

E:/bin/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.1/=
lib/active_record/attribute_methods.rb:256:in `method_missing'

app/models/movie.rb:17:in `deleted_roles=3D'

app/controllers/movies_controller.rb:70:in `update'

app/controllers/movies_controller.rb:69:in `update'



movies_controller.rb:

65  def update

66   @movie =3D Movie.find(params[:id])

67    debugger

68

69    respond_to do |format|

70      if @movie.update_attributes(params[:movie])

71        flash[:notice] =3D 'Movie was successfully updated.'

72        format.html { redirect_to(@movie) }

73        format.xml  { head :ok }

74      else

75        format.html { render :action =3D> "edit" }

76        format.xml  { render :xml =3D> @movie.errors, :status =3D> :unpro=
cessable_entity }

77      end

78    end

79  end



Movies.rb:

16  def deleted_roles=3D(values)

17    roles.find(*values).each(&:destroy)

18  end





Role.rb:

class Role < ActiveRecord::Base
  belongs_to :movie
  belongs_to :person

  validates_presence_of :movie_id, :person_id, :name

  def to_s
    [person.full_name, name].join(' - ')
  end
end