link_to_if throwing an error

Question

Im trying to fathom out link_to_if,

While calling:

<%= link_to_if(!current_user.nil?, "My profile", profile_path(current_user.profile)) %> <br>
<%= link_to_if(!current_user.nil?, "Edit profile", edit_profile_path(current_user.id) {}) %> <br>

Its throwing this error.

undefined method `profile' for nil:NilClass

of course because i have logged out but shouldn't the link_to_if stop profile_path(current_user.profile) from being called or i have i implemented it incorrectly?

Answer 1

but shouldn't the link_to_if stop

link_to_if hasn't even "started" yet. Before calling a method, all its arguments are evaluated. In this case, both condition AND the profile_path (which fails). You should wrap the link in an external conditional.

<% if current_user %>
  <%= link_to "My profile", profile_path(current_user.profile) %>
<% end %>