Filter by procedure is activated on route /backoffice/dossiers/procedure/:id

app/models/preference_list_dossier.rb

@@ -1,5 +1,6 @@
 class PreferenceListDossier < ActiveRecord::Base
   belongs_to :gestionnaire
+  belongs_to :procedure
 
   def table_attr
     return self.attr if table.nil? || table.empty?

app/models/procedure.rb

@@ -15,6 +15,8 @@ class Procedure < ActiveRecord::Base
   has_many :assign_to, dependent: :destroy
   has_many :gestionnaires, through: :assign_to
 
+  has_many :preference_list_dossiers
+
   delegate :use_api_carto, to: :module_api_carto
 
   accepts_nested_attributes_for :types_de_champ, :reject_if => proc { |attributes| attributes['libelle'].blank? }, :allow_destroy => true