Routing error in rendering partial form

Question

I'm making a project for which I have a class online_score which has as one of its attributes an array called url of online_score_url objects. What I did up to now is the following. The code might be a little dirty because I'm constantly trying new things, but as soon as I get it working, I'll clean it up. views/online_score/new:

<h3>Links: </h3>
<div class="urlInput">
<%f.fields_for :url do |f| %>
<div class="inputset">
<%= f.label :url %>  <%= f.url_field :url, :value => "http://www.google.be"%>
<%= f.label :description %>  <%= f.text_field :description %>
<%= link_to_remove_fields "remove", f %>
</div>
<%end %>
<%= add_url_link "Add Another link", f %> #works fine if I remove this rule
</div>

views/online_score/_online_score_url_fields:

<%= f.fields_for :item do |b| %>
<div class="inputset">
<%= b.label :url %>  <%= b.url_field :url, :value => "http://www.google.be"%>
<%= b.label :description %>  <%#= b.text_field :description %>
<%= link_to_remove_fields "remove", b %>
</div>
<% end %>

My problem is now that I want to be able to dynamically add inputs for online_score_urlobjects which I try to do with JQuery. I try to do this by rendering the partial like so: helpers/online_scores_helper.rb:

def add_url_link(name, f)
link_to_function name do |page|    
  item = OnlineScoreUrl.new("", "")
  instrument_online_score = render :partial => "online_score_url_fields", :locals => {:f => f, :item => item}

  page << %{
    $('.links').append("#{ escape_javascript online_score_url }");
  }
end
end

The problem now is that it gives the following error:

ActionController::RoutingError in Online_scores#new

Showing /home/kvhooreb/jenna_vopro/score/app/views/online_scores/new.html.erb where line >#22 raised:

No route matches {:action=>"show", :controller=>"online_scores", :locale=>:en} Extracted source (around line #22):

19: 20: <%#= render "online_score_url_fields", :f => f %> 21: <%end %> 22: <%= add_url_link "Add Another link", f %> 23: 24:
25: Rails.root: /home/kvhooreb/jenna_vopro/score

Application Trace | Framework Trace | Full Trace app/helpers/online_scores_helper.rb:20:in block in add_url_link' app/helpers/online_scores_helper.rb:15:inadd_url_link' app/views/online_scores/new.html.erb:22:in block in >_app_views_online_scores_new_html_erb__1492671958001855269_22836400_2958786211230549542' app/views/online_scores/new.html.erb:3:in >_app_views_online_scores_new_html_erb__1492671958001855269_22836400_2958786211230549542' Request

Parameters:

{"piece"=>"1", "locale"=>"en"}

Now I have no clue what causes this. Does anyone have an idea? Thanks for your time.

Which line is line 15 of app/helpers/online_scores_helper.rb ? I am betting that it's the one with "escape_javascript online_score_url" — Tim Harper
– Tim Harper, Commented Apr 16, 2011 at 8:32
What does your route definition look like for your online_scores resource? Have you defined it in routes.rb? — Tim Harper
– Tim Harper, Commented Apr 16, 2011 at 8:34

Tim Harper · Accepted Answer · 2011-04-16 08:37:35Z

2

Based off the information you've provided, I am going to assume the problem is in app/helpers/online_scores_helper.rb, specifically, this line:

$('.links').append("#{ escape_javascript online_score_url }");

If you've defined a standard resource for online_scores, you either are referring to a specific online score record online_score_url(online_score.id), or referring to the list of online scores online_score_urls.

online_score_url, being singular, normally would expect an id in order to render the route. Without it, you would get the error message:

"No route matches {:action=>"show", :controller=>"online_scores", :locale=>:en} Extracted source (around line #22):"

answered Apr 16, 2011 at 8:37

Tim Harper

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1 Comment

KarelV Over a year ago

Oh, thank you. Your comment wast the solution, but It made mee see my mistake. online_score_url is a variable which should be defined here: instrument_online_score = render :partial => "online_score_url_fields", :locals => {:f => f, :item => item} so that should be: online_score_url = render :partial => "online_score_url_fields", :locals => {:f => f, :item => item}. I copy pasted some code apparently and I forgot to edit that. It doesn't work completely yet, but at least it doesn't give an error anymore so I can start looking into that again. thanks.

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