Rails在application.html.erb中使异常

Question

我想在Ruby On Rails中创建一个登录文件，但是当我这样做时，我得到了在<%= yield %>元素上方创建的navbar ，该如何为login.html.erb文件设置例外它没有navbar ？

Answer 1

Move your navbar to partial, and render partial conditionally:

<!-- _nav_bar.html.erb -->
<div class="nav"> ... </div>

<!-- application.html.erb -->
<% unless @skip_navbar %>
  <%= render partial: 'nav_bar' %>
<% end %>

Then in your controller set the condition variable:

def login
  @skip_navbar = true
  # ...
end