How to get current object on partial colection-CodePudding

I have the following partial:

<%= render partial: "shared/cards",
                collection: @products,
                as: :product,
                ga_event_category: 'Redirect #{product.name}'
%>

How can I get the product name in this case? Because I'm using collection I can't have access to the object on every dynamic iteration?

CodePudding user response：

Rails makes the instance object available inside the partial using the name of the partial (without the underscore) as the instance variable.

When a partial is called with a pluralized collection, then the individual instances of the partial have access to the member of the collection being rendered via a variable named after the partial.

Read this: https://guides.rubyonrails.org/layouts_and_rendering.html#using-partials

In your case, I'd rename the partial as product.

render partial: "shared/product", collection: @products

Inside that partial you can set the value of ga_event_category using the product instance from the collection.

If you don't change the name of the partial, the collection instance would be cards.

CodePudding user response：

You mean like this:

<% @products.each do |product| %>
  <%= render partial: "shared/cards",
             product: product,
             ga_event_category: "Redirect #{product.name}"
  %>
<% end %>