Enable Style/SymbolProc

db/migrate/20160802113112_build_default_preference_list_dossier.rb

@@ -124,9 +124,7 @@ class BuildDefaultPreferenceListDossier < ActiveRecord::Migration
   end
 
   def up
-    Gestionnaire.all.each do |gestionnaire|
-      gestionnaire.build_default_preferences_list_dossier
-    end
+    Gestionnaire.all.each(&:build_default_preferences_list_dossier)
   end
 
   def down

db/migrate/20161007095443_reset_all_preference_list_dossier.rb

@@ -159,8 +159,6 @@ class ResetAllPreferenceListDossier < ActiveRecord::Migration
       end
     end
 
-    Gestionnaire.all.each do |gestionnaire|
-      gestionnaire.build_default_preferences_list_dossier
-    end
+    Gestionnaire.all.each(&:build_default_preferences_list_dossier)
   end
 end

db/migrate/20170215102943_remove_duplicate_email_received.rb

@@ -1,7 +1,7 @@
 class RemoveDuplicateEmailReceived < ActiveRecord::Migration[5.0]
   def change
     all_mails = MailReceived.all
-    groupped = all_mails.group_by { |m| m.procedure_id }
+    groupped = all_mails.group_by(&:procedure_id)
     filtered = groupped.reject { |k, v| v.length < 2 }
     filtered.each_value do |duplicate_mails|
       duplicate_mails.pop