How to pass an instance variable into a view partial?

Question

Right now I have a loop that contains code I do not wish to repeat for each instance variable. I wish to put this in a partial and reuse it by changing the @new_posts instance variable, so I can use the same template for @featured_posts and @recommended_posts that I have defined.

I'm thinking of something like this:

<%= render "posts", posts: @featured_posts %>

An example of a loop that I wish to store in a partial

<% @new_posts.each do |post| %>
<div class="col-sm-4">
 <div class="thumbnail">
 <img src="#">
 <div class="caption">
   <h4><%= link_to post.title, post %></h4>
   <%= post.text.truncate_words(60, omission: '...') %>
   <a href="#" class="btn btn-default btn-xs" role="button">Button</a>
   </div>
  </div>
</div>
<% end %>

How should I approach this? Thanks for your help!

Deepak Mahakale · Accepted Answer · 2017-03-15 03:41:46Z

1

Assign whatever variable you want to posts

<%= render "posts", posts: @featured_posts %>

And now loop over posts in the partial. You will have @featured_posts in posts variable now

<% posts.each do |post| %>
  <div class="col-sm-4">
    <div class="thumbnail">
      <img src="#">
      <div class="caption">
        <h4><%= link_to post.title, post %></h4>
        <%= post.text.truncate_words(60, omission: '...') %>
        <a href="#" class="btn btn-default btn-xs" role="button">Button</a>
      </div>
    </div>
  </div>
<% end %>

For @recommended_posts render the same partial but pass @recommended_posts to posts

<%= render "posts", posts: @recommended_posts %>

answered Mar 15, 2017 at 3:41

Deepak Mahakale

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