ruby on rails - How to Render Current User into Nav-Bar Button -

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running:

ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux] rails 4.2.5

i want render current user name nav-bar button using dropdown-menu class. replace "account info" "hi "current_user".

<li class="dropdown">           <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">account info <span class="caret"></span></a>           <ul class="dropdown-menu">           <li> <%= link_to "edit profile", edit_user_registration_path, class: "fa fa-pencil-square-o" %></li>           <li> <%= link_to "sign out", destroy_user_session_path, method: :delete, class: "fa fa-sign-out" %></li>           </ul>           <ul class = "nav pull-right">      </ul>         <% else %>          <!-- <%= link_to "sign up", new_user_registration_path,  class: "fa fa-sign-in" %> -->           <li><%= link_to "sign in", new_user_session_path, class: "fa fa-sign-in" %></li>         <% end %>       </ul>

i'm using devise (3.5.3) user authentication.

you'll need use if statement work out if user signed_in (i presume method exists in devise) , show different button if user signed in:

<li class="dropdown">     <% if signed_in? %>         <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">hi, <%= current_user.user_name %> <span class="caret"></span></a>     <% else %>       <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">account info <span class="caret"></span></a>    <% end %>       <ul class="dropdown-menu">       <li> <%= link_to "edit profile", edit_user_registration_path, class: "fa fa-pencil-square-o" %></li>       <li> <%= link_to "sign out", destroy_user_session_path, method: :delete, class: "fa fa-sign-out" %></li>       </ul>       <ul class = "nav pull-right">  </ul>     <% else %>      <!-- <%= link_to "sign up", new_user_registration_path,  class: "fa fa-sign-in" %> -->       <li><%= link_to "sign in", new_user_session_path, class: "fa fa-sign-in" %></li>     <% end %>   </ul>

you'll want use similar if, else, end statement hide sign_in/sign_up buttons when current_user signed_in - won't want see that.


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