Ruby on Rails : non-resourceful route working,but haml page fails

Question

So I have the following code in my routes.rb file:

match "/movies/:id/find_similar_movies", :to => "movies#similar", :as => "find_similar_movies"

then in a haml page I have the following:

= link_to 'Find Movies With Same Director', find_similar_movies_path(:id=>@movie.id)

then in my controller I have:

def similar
    movie=Movie.find_by_id([params(:id)])
    @movie_title=movie.title
    @similar_movies=Movie.find_all_by_director(movie.director)
  end

and in the similar.html.haml I write:

%h2 Similar movies with #{@movie_title}
%ul
- @similar_movies.each do |movie|
  %li = movie
= link_to 'Back to movie list', movies_path

when I press the = link_to 'Find Movies With Same Director', find_similar_movies_path(:id=>@movie.id)

I get:

wrong number of arguments (1 for 0)

Rails.root: /home/ubuntu/hw4_rottenpotatoes Application Trace | Framework Trace | Full Trace

app/controllers/movies_controller.rb:10:in `similar'

Request

Parameters:

{"id"=>"6"}

What's wrong?Thanks for your time...

Answer 1

params(:id) is trying to call a method called params with an :id argument, which is not how this works. params should be treated like a hash, the lookup syntax for which is params[:id] .

Try Movie.find_by_id(params[:id]) .