title: What's wrong with my scope, ruby on rails?
body: <pre><code> scope :between, -&gt; (sender_id,recipient_id) do
      where(“(conversations.sender_id = ? AND conversations.recipient_id = ? ) OR (conversations.sender_id = ? AND conversations.recipient_id =?)”, sender_id, recipient_id, recipient_id, sender_id)
    end
  </code></pre>
  
  <p>I keep getting an error that says:</p>
  
  <pre><code>warning: invalid character syntax; use ?\s
  </code></pre>
  
  <p>How do I fix this?</p>