CODEWITHSUNDEEP
ruby-on-railsviewcontrollerpartial
M1xelated
M1xelated

Reputation: 169

Rails, Giving a remote partial local variables

So I have this partial that has 2 variables: coursetitle and routenumber. I tried setting these variables from the view but I can't access these from the partial unless I make them global. I am looking for a way to pass on these variables from either the view or the controller but I am a bit lost as to why I can't set them from the view. 

<div>
<h2> Correct!</h2>       

      <%= link_to "Next", "/courses/#{coursetitle}_q#{routenumber}",class:"btn btn-warning" %>
      <%= render 'layouts/coursefooter' %>


      <!-- fix for bootstrap navbar render bug -->
      <script> 
      $( ".puller" ).addClass( "pull-left" );
      </script>

I call this partial by :remote like this: 

<%= link_to "Correct", correct_answer_courses_path,:remote => true,:class=>"btn btn-warning"  %>

And my correct_answer.js looks like this:

$("#correct_answer").html("<%= j render partial: "beginnercourse/correct" %>");

Upvotes: 0

Views: 140

Answers (2)

John
John

Reputation: 10009

I'm a little unclear as to your setup. If correct_answer.js is rendered at the same time as your view, you can make coursetitle and routenumber instance variables and set them in the controller (@coursetitle and @routenumber). Then you'll be able to access them in both the view and partial.

You could also look into using the cells gem, which I believe was created to handle problems like this. I don't know if there's a baked in way to pass a local variable into a partial in Rails.

But it sounds like correct_answers.js is not rendered at the same time as your view. In which case you can make sure that the correct_answer_courses_path route includes the values for coursetitle and routenumber. e.g. in your routes.rb file

get '/course/:title/route/:number', to: 'controller#action', as: 'correct_answer_courses'

and you'd get the path with correct_answer_courses_path(coursetitle, routenumber). and then in the controller action that renders the partial get those values with params[:title] and params[:number], set them to instance variable there, and then make use of them in the partial.

Upvotes: 0

Artem Biserov
Artem Biserov

Reputation: 109

In controller, you can define instance variables @coursetitle and @routenumber

$("#correct_answer").html("<%= j render partial: "beginnercourse/correct", coursetitle: @coursetitle, routenumber: @routenumber %>");

Upvotes: 1

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