[bug] Corrective patch for users with invalid group_id

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog Fab Manager
 
+- Fix a bug: some users may not appear in the admin's general listing
+- [TODO DEPLOY] `rake fablab:fix:users_group_ids`
+
 ## v3.1.1 2019 April 8
 
 - Fix a bug: when paying a reservation with wallet, the invoice footprint is not correctly updated

lib/tasks/fablab/fix.rake

@@ -125,5 +125,23 @@ namespace :fablab do
         p.save
       end
     end
+
+    desc '[release 3.1.2] fix users with invalid group_id'
+    task users_group_ids: :environment do
+      User.where.not(group_id: Group.all.map(&:id)).each do |u|
+        u.update_columns(group_id: Group.first.id, updated_at: DateTime.now)
+
+        meta_data = { ex_group_name: 'invalid group' }
+
+        NotificationCenter.call type: :notify_admin_user_group_changed,
+                                receiver: User.admins,
+                                attached_object: u,
+                                meta_data: meta_data
+
+        NotificationCenter.call type: :notify_user_user_group_changed,
+                                receiver: u,
+                                attached_object: u
+      end
+    end
   end
 end