app/views/admin/dashboard/edit.html.erb
<div class="container text-center">
<%= form_for @authentication, method: :patch do |f| %>
<div class="field">
<%= f.label :groupment %><br />
<%= collection_select(Groupment, :groupment_id, Groupment.all, :id, :name, prompt: "aucun") %>
</div>
<div class="field">
<%= f.label :email %><br />
<%= f.email_field :email, autofocus: true, autocomplete: "email" %>
</div>
<div class="field">
<%= f.label :current_password %> <i>(we need your current password to confirm your changes)</i><br />
<%= f.password_field :current_password, autocomplete: "current-password" %>
</div>
<%= f.submit 'edit', id: 'btns' %>
<% end %>
</div>