Ruby Active Record Associations in Rails Using Associations in Your App Rendering Collections

Brad Givens
Brad Givens
6,621 Points

Rendering Partial -

I'm not sure where I'm going wrong here, I've successfully rendered partials in other examples before outside of Treehouse. I think I'm getting confused with the pet/name variables but I've tried to alternate which ones go where.

Any ideas?

Thanks,

app/views/owners/show.html.erb
<h1>Owner: <%= @owner.name %></h1>

<div id="pets">
  <h2>Pets</h2>
  <% @owner.pets.each do |name| %>
    <%= render partial: "pets/pet" %>
  <% end %>

</div>
app/views/pets/_pet.html.erb
<div>
  <strong>Name:</strong>
  <%= Pet.name %>
</div>

1 Answer

Jay McGavren
STAFF
Jay McGavren
Treehouse Teacher

You've got a couple issues here.

  • You need to set the local pet variable that will be used within the partial from your main template. There are several ways to do this, but here's one that's compatible with the code you already have:
  <% @owner.pets.each do |pet| %>
    <%= render partial: "pets/pet", locals: {pet: pet} %>
  <% end %>
  • Your _pet partial is actually trying to call a class method on the Pet class, not an instance of the Pet class. Local variables are always named in lower-case. Starting with upper-case indicates a constant, like a class name.

You should review the preceding video for details on getting local variables into the partial view.