Rails: Trying to understand how to do better fragment caching

Question

In my app I am trying to incorporate better fragment caching.

Is it a best practice to do call fragments like this:

<% cache("user/#{current_user.id}/info") do %>
  <%= current_user.email %> information goes here
<% end %>

Answer 1

Yes you are doing it right!

Why? The cache fragment's key must reflect the "uniqueness" of the content:

• Statement: Your content is uniq for each user

• Conclusion: Your fragment's key must be different for each user

• Usage: using the user's id is the best choice since every user id is uniq!