Can I query the current scope(s)?

Question

My collections model has a scope like this

scope :got, -> { where(status: 'Got') }

I have a link to an index as follows

<%= user_collections_path(@user, got: true) %>

Thanks to the has_scope gem that creates an index of the user's collections where the status: is 'Got'. the path is

users/user1/collections?got=true

In that index view I want to be able to write something like

<% if status: 'Got' %>
   You have these ones
<% end %>

But no matter how I write it I can't seem to query the scope that was passed in the link. Is there a standard way of doing this?

Answer 1

You can do as following:

<% if params[:got].to_s == 'true' %>
   You have these ones
<% end %>

But this forces you to use true as value for params[:got]. Maybe this is better:

<% if params[:got].present? %>
   You have these ones
<% end %>

But this will work with params like:

• users/user1/collections?got=true,
• users/user1/collections?got=false,
• users/user1/collections?got=NOPE,
• etc.

---

Actually, the has_scope gem provides a method current_scopes that returns a hash (key = scope, value = value given to the scope) in the corresponding views. You should be able to do like this:

<% if current_scopes[:got].present? %>
   You have these ones
<% end %>