force path without languages in permalinks config

app/models/communication/website/page.rb

@@ -88,6 +88,14 @@ class Communication::Website::Page < ApplicationRecord
     "#{parent&.path}#{slug}/".gsub(/\/+/, '/')
   end
 
+  def path_without_language
+    if parent_id.present?
+      "#{parent&.path_without_language}#{slug}/".gsub(/\/+/, '/')
+    else
+      "/#{slug}/".gsub(/\/+/, '/')
+    end
+  end
+
   def git_path(website)
     return unless published
     if kind_home?

app/views/admin/communication/website/configs/permalinks/static.html.erb

 <% if @website.has_communication_posts? %>
-posts:          <%= @website.special_page(:communication_posts).path %>/:year/:month/:day/:slug/
+posts:          <%= @website.special_page(:communication_posts).path_without_language %>/:year/:month/:day/:slug/
 <% end %>
 <% if @website.has_communication_categories? %>
-categories:     <%= @website.special_page(:communication_posts).path %>/:slug/
+categories:     <%= @website.special_page(:communication_posts).path_without_language %>/:slug/
 <% end %>
 <% if @website.has_persons? %>
-persons:        <%= @website.special_page(:persons).path %>/:slug/
+persons:        <%= @website.special_page(:persons).path_without_language %>/:slug/
 <% end %>
 <% if @website.has_authors? %>
-authors:        <%= @website.special_page(:persons).path %>/:slug/<%= @website.special_page(:communication_posts).slug %>/
+authors:        <%= @website.special_page(:persons).path_without_language %>/:slug/<%= @website.special_page(:communication_posts).slug %>/
 <% end %>
 <%# ces paths complémentaires sont nécessairesà Hugo mais on ne les utilise pas %>
 <% if @website.has_administrators? %>
-administrators: <%= @website.special_page(:persons).path %>/:slug/roles/
+administrators: <%= @website.special_page(:persons).path_without_language %>/:slug/roles/
 <% end %>
 <% if @website.has_teachers? %>
-teachers:       <%= @website.special_page(:persons).path %>/:slug/programs/
+teachers:       <%= @website.special_page(:persons).path_without_language %>/:slug/programs/
 <% end %>
 <% if @website.has_researchers? %>
-researchers:    <%= @website.special_page(:persons).path %>/:slug/articles/
+researchers:    <%= @website.special_page(:persons).path_without_language %>/:slug/articles/
 <% end %>