jquery - How do I check if user is logged in javascript - Stack Overflow

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I have a signin lightbox that needs to be shown when user is not logged in. The lightbox is pletely implemented in javascript, fancybox and uses rails partials for html.

I can see the cookie is set in chrome when logged in, but document.cookie seems to return empty. The reason probably has been explained here

How do I achieve this in javascript / erb.

I have a signin lightbox that needs to be shown when user is not logged in. The lightbox is pletely implemented in javascript, fancybox and uses rails partials for html.

I can see the cookie is set in chrome when logged in, but document.cookie seems to return empty. The reason probably has been explained here

How do I achieve this in javascript / erb.

• javascript
• jquery
• ruby-on-rails

Share Improve this question Follow edited May 23, 2017 at 12:09 CommunityBot 111 silver badge asked Jun 3, 2012 at 6:10 ShaggyInjunShaggyInjun 2,98322 gold badges3434 silver badges5454 bronze badges 2

• 4 Does anyone actually have a js-based answer for this, unlike both answers listed below? – lulalala Commented Jul 30, 2012 at 8:24
• Probably impossible. See stackoverflow./a/29739169/6594668 or use cookies instead. – prograils Commented Apr 4, 2017 at 11:48

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2 Answers 2

Sorted by: Reset to default 3

Handle this in the backend. If you're doing this with rails, be sure to use and abuse current_user, because it will be your best friend.

Then in your partial, you're free to have something like this

<% if current_user %>
     <p>Wele <%= current_user.username %>!</p>
<% else %>
     <p>Please <%= link_to 'sign in', login_path %></p>
<% end %>

Rails Sessions, Ruby on Rails Tutorial

same approach as Jordan Scales said, but making it simpler ... DRYing if @current_user.nil?

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