Question

In my Rails App, I have a line that says:

<% if user_signed_in? && Registry.exists?(current_user.registry) %>

How can I make it

if Registry. **does not** exists?(current_user.registry)

Thanks in advance.

Answer 1

if user_signed_in? && !Registry.exists?(current_user.registry)

(note the exclamation mark) or

if user_signed_in? and not Registry.exists?(current_user.registry)

if you like that better for its readability. As well in Ruby, you can use unless, which is the same as if not, but might eventually be more difficult to read.