Enable the Layout/EmptyLinesAroundMethodBody cop

db/migrate/20151102104309_change_state_confirmed_to_validated.rb

@@ -1,6 +1,5 @@
 class ChangeStateConfirmedToValidated < ActiveRecord::Migration
   def change
     Dossier.where(state: 'confirmed').update_all(state: 'validated')
-
   end
 end

db/migrate/20151102163051_delete_attributs_to_dossier.rb

@@ -7,6 +7,5 @@ class DeleteAttributsToDossier < ActiveRecord::Migration
 
     remove_column :dossiers, :position_lon
     remove_column :dossiers, :ref_dossier_carto
-
   end
 end

db/migrate/20160802113112_build_default_preference_list_dossier.rb

@@ -1,7 +1,6 @@
 class BuildDefaultPreferenceListDossier < ActiveRecord::Migration
   class Gestionnaire < ActiveRecord::Base
     def build_default_preferences_list_dossier
-
       PreferenceListDossier.available_columns.each do |table|
         table.second.each do |column|
           if valid_couple_table_attr? table.first, column.first

db/migrate/20161007095443_reset_all_preference_list_dossier.rb

@@ -96,7 +96,6 @@ class ResetAllPreferenceListDossier < ActiveRecord::Migration
     has_many :procedures, through: :assign_to
 
     def build_default_preferences_list_dossier procedure_id=nil
-
       PreferenceListDossier.available_columns_for(procedure_id).each do |table|
         table.second.each do |column|
           if valid_couple_table_attr? table.first, column.first