Cannot load current_user into eex

Phoenix Forum Questions / Help
,
1

Hi all,

I am using the new version of guardian for authentication which I have configured it works fine the only problem is when I want to display the current logged in username in my header.html.eex layout i.e

<ul class="nav navbar-nav navbar-right">
       <li class="dropdown user-dropdown">
             <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><%= if @current_user do %>
                       <span></span>
                    <%= @current_user.firstname %>&nbsp&nbsp<img src="<%= Petronexus.ProfilePicture.url({@current_user.profile_pic, User}) || '/images/default.png' %> " style="width: 35px; height:35px; margin-right: 5px; border-radius: 50%;"><% end %>
                                        <ul class="dropdown-menu">
                                            <li class="greet">Hi,&nbsp<%= @current_user.firstname %></li>
                                        </ul>
                                    </li>
                                </ul>

I do get the error assign @current_user not available in eex template.

2

Here is my guardian plug to fetch the current user

defmodule Petronexus.SetCurrentUser do
  def init(opts), do: opts

  def call(conn, _opts) do
    user = Guardian.Plug.current_resource(conn)
    Plug.Conn.assign(conn, :current_user, user)
  end
end

which I have added into my router.ex as

pipeline :login_required do
    plug Petronexus.Auth.Pipeline
    plug Petronexus.Plug.SetCurrentUser
  end
1 Like
3

The assign would either be passed to your template from the Controller, or from the View that back your page. What does the render call in the controller look like?

4 
def new(conn, _params) do
    user = Guardian.Plug.current_resource(conn)
    render(conn, "new.html", current_user: user)
  end
5

You might probably use a conditional render of @current_user…

if @current_user do
...
end

The fact is You try to render this in the header, but maybe not all actions has a current_user.

6

yeah am using a conditional

7

Sorry to ask the obvious, but are you actually using the pipeline in your router block?

1 Like
8

do you mean this part?

pipeline :login_required do
    plug Petronexus.Auth.Pipeline
    plug Petronexus.Plug.SetCurrentUser
end
9

Basically he is asking, if you have pipe_through :login_required somewhere.

1 Like
10

yes i have

scope “/”, PetronexusWeb do
pipe_through [:browser, :login_required]

11

oooh yeah my bad :see_no_evil: I have 2 scopes in my router so I had not passed :login_required to one of them that was the reason. Silly mistake, I should be careful next time

1 Like