[#1421] Move pays to PaysChamp

app/models/champ.rb

@@ -19,10 +19,6 @@ class Champ < ApplicationRecord
     mandatory? && value.blank?
   end
 
-  def self.pays
-    JSON.parse(Carto::GeoAPI::Driver.pays).pluck("nom")
-  end
-
   def to_s
     if value.present?
       string_value

app/models/champs/pays_champ.rb

@@ -1,2 +1,5 @@
 class Champs::PaysChamp < Champs::TextChamp
+  def self.pays
+    JSON.parse(Carto::GeoAPI::Driver.pays).pluck("nom")
+  end
 end

app/views/shared/dossiers/editable_champs/_pays.html.haml

@@ -1,3 +1,3 @@
 = form.select :value,
-  Champ.pays,
+  Champs::PaysChamp.pays,
   required: champ.mandatory?

app/views/users/description/champs/_pays.html.haml

@@ -1,2 +1,2 @@
 = select_tag("champs['#{champ.id}']",
-  options_for_select(Champ.pays, selected: champ.object.value))
+  options_for_select(Champs::PaysChamp.pays, selected: champ.object.value))