diff --git a/preferences/locale/fr/LC_MESSAGES/django.po b/preferences/locale/fr/LC_MESSAGES/django.po
index c655e7a3..d034ac9b 100644
--- a/preferences/locale/fr/LC_MESSAGES/django.po
+++ b/preferences/locale/fr/LC_MESSAGES/django.po
@@ -256,57 +256,57 @@ msgstr "Modèles de document actuels"
 msgid "Current attributes"
 msgstr "Attributs actuels"
 
-#: preferences/models.py:78
+#: preferences/models.py:56
 msgid "Users can't select their room"
 msgstr "Les utilisateurs ne peuvent pas modifier leur chambre"
 
-#: preferences/models.py:79
+#: preferences/models.py:57
 msgid ""
 "Users can only select a room occupied by a user with a disabled connection."
 msgstr ""
 "Les utilisateurs peuvent sélectionner la chambre d'un adhérent dont la "
 "connexion est désactivée."
 
-#: preferences/models.py:80
+#: preferences/models.py:58
 msgid "Users can select all rooms"
 msgstr "Les utilisateurs peuvent choisir toutes les chambres"
 
-#: preferences/models.py:86
+#: preferences/models.py:64
 msgid "Users can create a club."
 msgstr "Les utilisateurs peuvent créer un club."
 
-#: preferences/models.py:89
+#: preferences/models.py:67
 msgid "Users can create a member."
 msgstr "Les utilisateurs peuvent créer un adhérent."
 
-#: preferences/models.py:95
+#: preferences/models.py:73
 msgid "Users can edit their shell."
 msgstr "Les utilisateurs peuvent modifier leur interface en ligne de commande."
 
-#: preferences/models.py:101
+#: preferences/models.py:79
 msgid "Policy on self users room edition"
 msgstr "Autorisation d'édtion du champ chambre par les utilisateurs"
 
-#: preferences/models.py:104
+#: preferences/models.py:82
 msgid "Enable local email accounts for users."
 msgstr "Activer les comptes mail locaux pour les utilisateurs."
 
-#: preferences/models.py:109
+#: preferences/models.py:87
 msgid "Domain to use for local email accounts."
 msgstr "Domaine à utiliser pour les comptes mail locaux."
 
-#: preferences/models.py:113
+#: preferences/models.py:91
 msgid "Maximum number of local email addresses for a standard user."
 msgstr ""
 "Nombre maximum d'adresses mail locales autorisé pour un utilisateur standard."
 
-#: preferences/models.py:118
+#: preferences/models.py:96
 msgid "Not yet active users will be deleted after this number of days."
 msgstr ""
 "Les utilisateurs n'ayant jamais adhéré seront supprimés après ce nombre de "
 "jours."
 
-#: preferences/models.py:124
+#: preferences/models.py:102
 msgid ""
 "Users with an email address not yet confirmed will be disabled after this "
 "number of days."
@@ -314,11 +314,11 @@ msgstr ""
 "Les utilisateurs n'ayant pas confirmé leur addresse mail seront désactivés "
 "après ce nombre de jours"
 
-#: preferences/models.py:128
+#: preferences/models.py:106
 msgid "A new user can create their account on Re2o."
 msgstr "Un nouvel utilisateur peut créer son compte sur Re2o."
 
-#: preferences/models.py:133
+#: preferences/models.py:111
 msgid ""
 "If True, all new created and connected users are active. If False, only when "
 "a valid registration has been paid."
@@ -326,7 +326,7 @@ msgstr ""
 "Si True, tous les nouveaux utilisations créés et connectés sont actifs. Si "
 "False, seulement quand une inscription validée a été payée."
 
-#: preferences/models.py:140
+#: preferences/models.py:118
 msgid ""
 "If True, users have the choice to receive an email containing a link to "
 "reset their password during creation, or to directly set their password in "
@@ -337,172 +337,172 @@ msgstr ""
 "de choisir leur mot de passe immédiatement. Si False, un mail est toujours "
 "envoyé."
 
-#: preferences/models.py:147
+#: preferences/models.py:125
 msgid "If True, archived users are allowed to connect."
 msgstr "Si True, les utilisateurs archivés sont autorisés à se connecter."
 
-#: preferences/models.py:151
+#: preferences/models.py:129
 msgid "Can view the user preferences"
 msgstr "Peut voir les préférences d'utilisateur"
 
-#: preferences/models.py:152
+#: preferences/models.py:130
 msgid "user preferences"
 msgstr "Préférences d'utilisateur"
 
-#: preferences/models.py:159
+#: preferences/models.py:137
 msgid "Email domain must begin with @."
 msgstr "Un domaine mail doit commencer par @."
 
-#: preferences/models.py:177
+#: preferences/models.py:155
 msgid "Automatic configuration by RA"
 msgstr "Configuration automatique par RA"
 
-#: preferences/models.py:178
+#: preferences/models.py:156
 msgid "IP addresses assignment by DHCPv6"
 msgstr "Attribution d'adresses IP par DHCPv6"
 
-#: preferences/models.py:179
+#: preferences/models.py:157
 msgid "Disabled"
 msgstr "Désactivé"
 
-#: preferences/models.py:188
+#: preferences/models.py:166
 msgid "default Time To Live (TTL) for CNAME, A and AAAA records"
 msgstr ""
 "Temps de vie (TTL) par défault pour des enregistrements CNAME, A et AAAA"
 
-#: preferences/models.py:198
+#: preferences/models.py:176
 msgid "Can view the machine preferences"
 msgstr "Peut voir les préférences de machine"
 
-#: preferences/models.py:199
+#: preferences/models.py:177
 msgid "machine preferences"
 msgstr "Préférences de machine"
 
-#: preferences/models.py:219 preferences/models.py:677
+#: preferences/models.py:197 preferences/models.py:655
 msgid "On the IP range's VLAN of the machine"
 msgstr "Sur le VLAN de la plage d'IP de la machine"
 
-#: preferences/models.py:220 preferences/models.py:678
+#: preferences/models.py:198 preferences/models.py:656
 msgid "Preset in \"VLAN for machines accepted by RADIUS\""
 msgstr "Prédéfinie dans « VLAN pour les machines acceptées par RADIUS »"
 
-#: preferences/models.py:226
+#: preferences/models.py:204
 msgid "Web management, activated in case of automatic provision."
 msgstr "Gestion web, activée en cas de provision automatique."
 
-#: preferences/models.py:231
+#: preferences/models.py:209
 msgid ""
 "SSL web management, make sure that a certificate is installed on the switch."
 msgstr ""
 "Gestion web SSL, vérifiez qu'un certificat est installé sur le commutateur "
 "réseau."
 
-#: preferences/models.py:237
+#: preferences/models.py:215
 msgid "REST management, activated in case of automatic provision."
 msgstr "Gestion REST, activée en cas de provision automatique."
 
-#: preferences/models.py:244
+#: preferences/models.py:222
 msgid "IP range for the management of switches."
 msgstr "Plage d'IP pour la gestion des commutateurs réseau."
 
-#: preferences/models.py:250
+#: preferences/models.py:228
 msgid "Provision of configuration mode for switches."
 msgstr "Mode de provision de configuration pour les commutateurs réseau."
 
-#: preferences/models.py:253
+#: preferences/models.py:231
 msgid "SFTP login for switches."
 msgstr "Identifiant SFTP pour les commutateurs réseau."
 
-#: preferences/models.py:256
+#: preferences/models.py:234
 msgid "SFTP password."
 msgstr "Mot de passe SFTP."
 
-#: preferences/models.py:360
+#: preferences/models.py:338
 msgid "Can view the topology preferences"
 msgstr "Peut voir les préférences de topologie"
 
-#: preferences/models.py:361
+#: preferences/models.py:339
 msgid "topology preferences"
 msgstr "préférences de topologie"
 
-#: preferences/models.py:374
+#: preferences/models.py:352
 msgid "RADIUS key."
 msgstr "Clé RADIUS."
 
-#: preferences/models.py:376
+#: preferences/models.py:354
 msgid "Comment for this key."
 msgstr "Commentaire pour cette clé."
 
-#: preferences/models.py:379
+#: preferences/models.py:357
 msgid "Default key for switches."
 msgstr "Clé par défaut pour les commutateurs réseau."
 
-#: preferences/models.py:383
+#: preferences/models.py:361
 msgid "Can view a RADIUS key object"
 msgstr "Peut voir un objet clé RADIUS"
 
-#: preferences/models.py:384 preferences/views.py:331
+#: preferences/models.py:362 preferences/views.py:307
 msgid "RADIUS key"
 msgstr "Clé RADIUS"
 
-#: preferences/models.py:385
+#: preferences/models.py:363
 #: preferences/templates/preferences/display_preferences.html:221
 msgid "RADIUS keys"
 msgstr "clés RADIUS"
 
-#: preferences/models.py:392
+#: preferences/models.py:370
 msgid "Default RADIUS key for switches already exists."
 msgstr "Clé par défaut pour les commutateurs réseau."
 
-#: preferences/models.py:395
+#: preferences/models.py:373
 msgid "RADIUS key "
 msgstr "clé RADIUS "
 
-#: preferences/models.py:401
+#: preferences/models.py:379
 msgid "Switch login."
 msgstr "Identifiant du commutateur réseau."
 
-#: preferences/models.py:402
+#: preferences/models.py:380
 msgid "Password."
 msgstr "Mot de passe."
 
-#: preferences/models.py:404
+#: preferences/models.py:382
 msgid "Default credentials for switches."
 msgstr "Identifiants par défaut pour les commutateurs réseau."
 
-#: preferences/models.py:411
+#: preferences/models.py:389
 msgid "Can view a switch management credentials object"
 msgstr "Peut voir un objet identifiants de gestion de commutateur réseau"
 
-#: preferences/models.py:414 preferences/views.py:394
+#: preferences/models.py:392 preferences/views.py:370
 msgid "switch management credentials"
 msgstr "identifiants de gestion de commutateur réseau"
 
-#: preferences/models.py:417
+#: preferences/models.py:395
 msgid "Switch login "
 msgstr "Identifiant du commutateur réseau "
 
-#: preferences/models.py:429
+#: preferences/models.py:407
 msgid "Delay between the email and the membership's end."
 msgstr "Délai entre le mail et la fin d'adhésion."
 
-#: preferences/models.py:435
+#: preferences/models.py:413
 msgid "Message displayed specifically for this reminder."
 msgstr "Message affiché spécifiquement pour ce rappel."
 
-#: preferences/models.py:439
+#: preferences/models.py:417
 msgid "Can view a reminder object"
 msgstr "Peut voir un objet rappel"
 
-#: preferences/models.py:440 preferences/views.py:276
+#: preferences/models.py:418 preferences/views.py:252
 msgid "reminder"
 msgstr "rappel"
 
-#: preferences/models.py:441
+#: preferences/models.py:419
 msgid "reminders"
 msgstr "rappels"
 
-#: preferences/models.py:462
+#: preferences/models.py:440
 msgid ""
 "General message displayed on the French version of the website (e.g. in case "
 "of maintenance)."
@@ -510,7 +510,7 @@ msgstr ""
 "Message général affiché sur la version française du site (ex : en cas de "
 "maintenance)."
 
-#: preferences/models.py:470
+#: preferences/models.py:448
 msgid ""
 "General message displayed on the English version of the website (e.g. in "
 "case of maintenance)."
@@ -518,75 +518,75 @@ msgstr ""
 "Message général affiché sur la version anglaise du site (ex : en cas de "
 "maintenance)."
 
-#: preferences/models.py:485
+#: preferences/models.py:463
 msgid "Can view the general preferences"
 msgstr "Peut voir les préférences générales"
 
-#: preferences/models.py:486
+#: preferences/models.py:464
 msgid "general preferences"
 msgstr "préférences générales"
 
-#: preferences/models.py:506
+#: preferences/models.py:484
 msgid "Can view the service preferences"
 msgstr "Peut voir les préférences de service"
 
-#: preferences/models.py:507 preferences/views.py:227
+#: preferences/models.py:485 preferences/views.py:203
 msgid "service"
 msgstr "service"
 
-#: preferences/models.py:508
+#: preferences/models.py:486
 msgid "services"
 msgstr "services"
 
-#: preferences/models.py:518
+#: preferences/models.py:496
 msgid "Contact email address."
 msgstr "Adresse mail de contact."
 
-#: preferences/models.py:524
+#: preferences/models.py:502
 msgid "Description of the associated email address."
 msgstr "Description de l'adresse mail associée."
 
-#: preferences/models.py:534
+#: preferences/models.py:512
 msgid "Can view a contact email address object"
 msgstr "Peut voir un objet adresse mail de contact"
 
-#: preferences/models.py:536
+#: preferences/models.py:514
 msgid "contact email address"
 msgstr "adresse mail de contact"
 
-#: preferences/models.py:537
+#: preferences/models.py:515
 msgid "contact email addresses"
 msgstr "adresses mail de contact"
 
-#: preferences/models.py:545 preferences/views.py:634
+#: preferences/models.py:523 preferences/views.py:610
 msgid "mandate"
 msgstr "mandat"
 
-#: preferences/models.py:546
+#: preferences/models.py:524
 msgid "mandates"
 msgstr "mandats"
 
-#: preferences/models.py:547
+#: preferences/models.py:525
 msgid "Can view a mandate object"
 msgstr "Peut voir un objet mandat"
 
-#: preferences/models.py:554
+#: preferences/models.py:532
 msgid "president of the association"
 msgstr "président de l'association"
 
-#: preferences/models.py:555
+#: preferences/models.py:533
 msgid "Displayed on subscription vouchers."
 msgstr "Affiché sur les reçus de cotisation."
 
-#: preferences/models.py:557
+#: preferences/models.py:535
 msgid "start date"
 msgstr "date de début"
 
-#: preferences/models.py:558
+#: preferences/models.py:536
 msgid "end date"
 msgstr "date de fin"
 
-#: preferences/models.py:571
+#: preferences/models.py:549
 msgid ""
 "No mandates have been created. Please go to the preferences page to create "
 "one."
@@ -594,140 +594,140 @@ msgstr ""
 "Aucun mandat n'a été créé. Veuillez vous rendre sur la page de préférences "
 "pour en créer un."
 
-#: preferences/models.py:586
+#: preferences/models.py:564
 msgid "Networking organisation school Something"
 msgstr "Association de réseau de l'école Machin"
 
-#: preferences/models.py:589
+#: preferences/models.py:567
 msgid "Threadneedle Street"
 msgstr "1 rue de la Vrillière"
 
-#: preferences/models.py:590
+#: preferences/models.py:568
 msgid "London EC2R 8AH"
 msgstr "75001 Paris"
 
-#: preferences/models.py:593
+#: preferences/models.py:571
 msgid "Organisation"
 msgstr "Association"
 
-#: preferences/models.py:600
+#: preferences/models.py:578
 msgid "Can view the organisation preferences"
 msgstr "Peut voir les préférences d'association"
 
-#: preferences/models.py:601
+#: preferences/models.py:579
 msgid "organisation preferences"
 msgstr "préférences d'association"
 
-#: preferences/models.py:619
+#: preferences/models.py:597
 msgid "Can view the homepage preferences"
 msgstr "Peut voir les préférences de page d'accueil"
 
-#: preferences/models.py:620
+#: preferences/models.py:598
 msgid "homepage preferences"
 msgstr "Préférences de page d'accueil"
 
-#: preferences/models.py:634
+#: preferences/models.py:612
 msgid "Welcome email in French."
 msgstr "Mail de bienvenue en français."
 
-#: preferences/models.py:637
+#: preferences/models.py:615
 msgid "Welcome email in English."
 msgstr "Mail de bienvenue en anglais."
 
-#: preferences/models.py:642
+#: preferences/models.py:620
 msgid "Can view the email message preferences"
 msgstr "Peut voir les préférences de message pour les mails"
 
-#: preferences/models.py:644
+#: preferences/models.py:622
 msgid "email message preferences"
 msgstr "préférences de messages pour les mails"
 
-#: preferences/models.py:649
+#: preferences/models.py:627
 msgid "RADIUS attribute"
 msgstr "attribut RADIUS"
 
-#: preferences/models.py:650
+#: preferences/models.py:628
 msgid "RADIUS attributes"
 msgstr "attributs RADIUS"
 
-#: preferences/models.py:654 preferences/views.py:587
+#: preferences/models.py:632 preferences/views.py:563
 msgid "attribute"
 msgstr "attribut"
 
-#: preferences/models.py:655
+#: preferences/models.py:633
 msgid "See https://freeradius.org/rfc/attributes.html."
 msgstr "Voir https://freeradius.org/rfc/attributes.html."
 
-#: preferences/models.py:657
+#: preferences/models.py:635
 msgid "value"
 msgstr "valeur"
 
-#: preferences/models.py:659
+#: preferences/models.py:637
 msgid "comment"
 msgstr "commentaire"
 
-#: preferences/models.py:660
+#: preferences/models.py:638
 msgid "Use this field to document this attribute."
 msgstr "Utilisez ce champ pour documenter cet attribut."
 
-#: preferences/models.py:671
+#: preferences/models.py:649
 msgid "RADIUS policy"
 msgstr "politique de RADIUS"
 
-#: preferences/models.py:672
+#: preferences/models.py:650
 #: preferences/templates/preferences/display_preferences.html:299
 msgid "RADIUS policies"
 msgstr "politiques de RADIUS"
 
-#: preferences/models.py:683
+#: preferences/models.py:661
 msgid "Reject the machine"
 msgstr "Rejeter la machine"
 
-#: preferences/models.py:684
+#: preferences/models.py:662
 msgid "Place the machine on the VLAN"
 msgstr "Placer la machine sur le VLAN"
 
-#: preferences/models.py:693
+#: preferences/models.py:671
 msgid "policy for unknown machines"
 msgstr "politique pour les machines inconnues"
 
-#: preferences/models.py:701
+#: preferences/models.py:679
 msgid "unknown machines VLAN"
 msgstr "VLAN pour les machines inconnues"
 
-#: preferences/models.py:702
+#: preferences/models.py:680
 msgid "VLAN for unknown machines if not rejected."
 msgstr "VLAN pour les machines inconnues si non rejeté."
 
-#: preferences/models.py:708
+#: preferences/models.py:686
 msgid "unknown machines attributes"
 msgstr "attributs pour les machines inconnues"
 
-#: preferences/models.py:709
+#: preferences/models.py:687
 msgid "Answer attributes for unknown machines."
 msgstr "Attributs de réponse pour les machines inconnues."
 
-#: preferences/models.py:715
+#: preferences/models.py:693
 msgid "policy for unknown ports"
 msgstr "politique pour les ports inconnus"
 
-#: preferences/models.py:723
+#: preferences/models.py:701
 msgid "unknown ports VLAN"
 msgstr "VLAN pour les ports inconnus"
 
-#: preferences/models.py:724
+#: preferences/models.py:702
 msgid "VLAN for unknown ports if not rejected."
 msgstr "VLAN pour les ports inconnus si non rejeté."
 
-#: preferences/models.py:730
+#: preferences/models.py:708
 msgid "unknown ports attributes"
 msgstr "attributs pour les ports inconnus"
 
-#: preferences/models.py:731
+#: preferences/models.py:709
 msgid "Answer attributes for unknown ports."
 msgstr "Attributs de réponse pour les ports inconnus."
 
-#: preferences/models.py:738
+#: preferences/models.py:716
 msgid ""
 "Policy for machines connecting from unregistered rooms (relevant on ports "
 "with STRICT RADIUS mode)"
@@ -735,87 +735,87 @@ msgstr ""
 "Politique pour les machines se connectant depuis des chambre non "
 "enregistrées (pertinent pour les ports avec le mode de RADIUS STRICT)"
 
-#: preferences/models.py:748
+#: preferences/models.py:726
 msgid "unknown rooms VLAN"
 msgstr "VLAN pour les chambres inconnues"
 
-#: preferences/models.py:749
+#: preferences/models.py:727
 msgid "VLAN for unknown rooms if not rejected."
 msgstr "VLAN pour les chambres inconnues si non rejeté."
 
-#: preferences/models.py:755
+#: preferences/models.py:733
 msgid "unknown rooms attributes"
 msgstr "attributs pour les chambres inconnues"
 
-#: preferences/models.py:756
+#: preferences/models.py:734
 msgid "Answer attributes for unknown rooms."
 msgstr "Attributs de réponse pour les chambres inconnues."
 
-#: preferences/models.py:762
+#: preferences/models.py:740
 msgid "policy for non members"
 msgstr "politique pour les non adhérents"
 
-#: preferences/models.py:770
+#: preferences/models.py:748
 msgid "non members VLAN"
 msgstr "VLAN pour les non adhérents"
 
-#: preferences/models.py:771
+#: preferences/models.py:749
 msgid "VLAN for non members if not rejected."
 msgstr "VLAN pour les non adhérents si non rejeté."
 
-#: preferences/models.py:777
+#: preferences/models.py:755
 msgid "non members attributes"
 msgstr "attributs pour les non adhérents"
 
-#: preferences/models.py:778
+#: preferences/models.py:756
 msgid "Answer attributes for non members."
 msgstr "Attributs de réponse pour les non adhérents."
 
-#: preferences/models.py:784
+#: preferences/models.py:762
 msgid "policy for banned users"
 msgstr "politique pour les utilisateurs bannis"
 
-#: preferences/models.py:792
+#: preferences/models.py:770
 msgid "banned users VLAN"
 msgstr "VLAN pour les utilisateurs bannis"
 
-#: preferences/models.py:793
+#: preferences/models.py:771
 msgid "VLAN for banned users if not rejected."
 msgstr "VLAN pour les utilisateurs bannis si non rejeté."
 
-#: preferences/models.py:799
+#: preferences/models.py:777
 msgid "banned users attributes"
 msgstr "attributs pour les utilisateurs bannis"
 
-#: preferences/models.py:800
+#: preferences/models.py:778
 msgid "Answer attributes for banned users."
 msgstr "Attributs de réponse pour les utilisateurs bannis."
 
-#: preferences/models.py:813
+#: preferences/models.py:791
 msgid "accepted users attributes"
 msgstr "attributs pour les utilisateurs acceptés"
 
-#: preferences/models.py:814
+#: preferences/models.py:792
 msgid "Answer attributes for accepted users."
 msgstr "Attributs de réponse pour les utilisateurs acceptés."
 
-#: preferences/models.py:841
+#: preferences/models.py:819
 msgid "subscription preferences"
 msgstr "préférences de cotisation"
 
-#: preferences/models.py:845
+#: preferences/models.py:823
 msgid "template for invoices"
 msgstr "modèle pour les factures"
 
-#: preferences/models.py:852
+#: preferences/models.py:830
 msgid "template for subscription vouchers"
 msgstr "modèle pour les reçus de cotisation"
 
-#: preferences/models.py:858
+#: preferences/models.py:836
 msgid "send voucher by email when the invoice is controlled"
 msgstr "envoyer le reçu par mail quand la facture est contrôlée"
 
-#: preferences/models.py:860
+#: preferences/models.py:838
 msgid ""
 "Be careful, if no mandate is defined on the preferences page, errors will be "
 "triggered when generating vouchers."
@@ -823,19 +823,19 @@ msgstr ""
 "Faites attention, si aucun mandat n'est défini sur la page de préférences, "
 "des erreurs seront déclenchées en générant des reçus."
 
-#: preferences/models.py:872
+#: preferences/models.py:850
 msgid "template"
 msgstr "modèle"
 
-#: preferences/models.py:873
+#: preferences/models.py:851
 msgid "name"
 msgstr "nom"
 
-#: preferences/models.py:876
+#: preferences/models.py:854
 msgid "document template"
 msgstr "modèle de document"
 
-#: preferences/models.py:877
+#: preferences/models.py:855
 msgid "document templates"
 msgstr "modèles de document"
 
@@ -1035,9 +1035,9 @@ msgstr "Préférences générales"
 #: preferences/templates/preferences/display_preferences.html:417
 #: preferences/templates/preferences/display_preferences.html:495
 #: preferences/templates/preferences/edit_preferences.html:46
-#: preferences/views.py:212 preferences/views.py:261 preferences/views.py:307
-#: preferences/views.py:367 preferences/views.py:431 preferences/views.py:496
-#: preferences/views.py:572 preferences/views.py:619
+#: preferences/views.py:188 preferences/views.py:237 preferences/views.py:283
+#: preferences/views.py:343 preferences/views.py:407 preferences/views.py:472
+#: preferences/views.py:548 preferences/views.py:595
 msgid "Edit"
 msgstr "Modifier"
 
@@ -1359,75 +1359,75 @@ msgstr "URL du compte Facebook"
 msgid "Editing of preferences"
 msgstr "Modification des préférences"
 
-#: preferences/views.py:160
+#: preferences/utils/views.py:45
 msgid "Unknown object."
 msgstr "Objet inconnu."
 
-#: preferences/views.py:179
+#: preferences/utils/views.py:64
 msgid "The preferences were edited."
 msgstr "Les préférences ont été modifiées."
 
-#: preferences/views.py:191
+#: preferences/views.py:167
 msgid "The service was added."
 msgstr "Le service a été ajouté."
 
-#: preferences/views.py:194 preferences/views.py:243 preferences/views.py:292
-#: preferences/views.py:349 preferences/views.py:412 preferences/views.py:471
-#: preferences/views.py:554 preferences/views.py:603
+#: preferences/views.py:170 preferences/views.py:219 preferences/views.py:268
+#: preferences/views.py:325 preferences/views.py:388 preferences/views.py:447
+#: preferences/views.py:530 preferences/views.py:579
 msgid "Add"
 msgstr "Ajouter"
 
-#: preferences/views.py:209
+#: preferences/views.py:185
 msgid "The service was edited."
 msgstr "Le service a été modifié."
 
-#: preferences/views.py:224
+#: preferences/views.py:200
 msgid "The service was deleted."
 msgstr "Le service a été supprimé."
 
-#: preferences/views.py:240
+#: preferences/views.py:216
 msgid "The reminder was added."
 msgstr "Le rappel a été ajouté."
 
-#: preferences/views.py:258
+#: preferences/views.py:234
 msgid "The reminder was edited."
 msgstr "Le rappel a été modifié."
 
-#: preferences/views.py:273
+#: preferences/views.py:249
 msgid "The reminder was deleted."
 msgstr "Le rappel a été supprimé."
 
-#: preferences/views.py:289
+#: preferences/views.py:265
 msgid "The RADIUS key was added."
 msgstr "La clé RADIUS a été ajoutée."
 
-#: preferences/views.py:304
+#: preferences/views.py:280
 msgid "The RADIUS key was edited."
 msgstr "La clé RADIUS a été modifiée."
 
-#: preferences/views.py:320
+#: preferences/views.py:296
 msgid "The RADIUS key was deleted."
 msgstr "La clé RADIUS a été supprimée."
 
-#: preferences/views.py:325
+#: preferences/views.py:301
 msgid "The RADIUS key is assigned to at least one switch, you can't delete it."
 msgstr ""
 "La clé RADIUS est assignée a au moins un commutateur réseau, vous ne pouvez "
 "pas la supprimer."
 
-#: preferences/views.py:344
+#: preferences/views.py:320
 msgid "The switch management credentials were added."
 msgstr "Les identifiants de gestion de commutateur réseay ont été ajoutés."
 
-#: preferences/views.py:364
+#: preferences/views.py:340
 msgid "The switch management credentials were edited."
 msgstr "Les identifiants de gestion de commutateur réseau ont été modifiés."
 
-#: preferences/views.py:381
+#: preferences/views.py:357
 msgid "The switch management credentials were deleted."
 msgstr "Les identifiants de gestion de commutateur réseau ont été supprimés."
 
-#: preferences/views.py:387
+#: preferences/views.py:363
 msgid ""
 "The switch management credentials are assigned to at least one switch, you "
 "can't delete them."
@@ -1435,44 +1435,44 @@ msgstr ""
 "Les identifiants de gestion de commutateur réseau sont assignés à au moins "
 "un commutateur réseau , vous ne pouvez pas les supprimer."
 
-#: preferences/views.py:407
+#: preferences/views.py:383
 msgid "The contact email address was created."
 msgstr "L'adresse mail de contact a été supprimée."
 
-#: preferences/views.py:428
+#: preferences/views.py:404
 msgid "The contact email address was edited."
 msgstr "L'adresse mail de contact a été modifiée."
 
-#: preferences/views.py:446
+#: preferences/views.py:422
 msgid "The contact email adress was deleted."
 msgstr "L'adresse mail de contact a été supprimée."
 
-#: preferences/views.py:449 preferences/views.py:536
+#: preferences/views.py:425 preferences/views.py:512
 msgid "Delete"
 msgstr "Supprimer"
 
-#: preferences/views.py:466
+#: preferences/views.py:442
 msgid "The document template was created."
 msgstr "Le modèle de document a été créé."
 
-#: preferences/views.py:472
+#: preferences/views.py:448
 msgid "New document template"
 msgstr "Nouveau modèle de document"
 
-#: preferences/views.py:491
+#: preferences/views.py:467
 msgid "The document template was edited."
 msgstr "Le modèle de document a été édité."
 
-#: preferences/views.py:497
+#: preferences/views.py:473
 msgid "Edit document template"
 msgstr "Modifier le modèle de document"
 
-#: preferences/views.py:520
+#: preferences/views.py:496
 #, python-format
 msgid "The document template %(document_template)s was deleted."
 msgstr "Le modèle de document %(document_template)s a été supprimé."
 
-#: preferences/views.py:527
+#: preferences/views.py:503
 #, python-format
 msgid ""
 "The document template %(document_template)s can't be deleted because it is "
@@ -1481,31 +1481,31 @@ msgstr ""
 "Le modèle de document %(document_template)s ne peut pas être supprimé car il "
 "est actuellement utilisé."
 
-#: preferences/views.py:537
+#: preferences/views.py:513
 msgid "Delete document template"
 msgstr "Supprimer le modèle de document"
 
-#: preferences/views.py:551
+#: preferences/views.py:527
 msgid "The attribute was added."
 msgstr "L'attribut a été ajouté."
 
-#: preferences/views.py:569
+#: preferences/views.py:545
 msgid "The attribute was edited."
 msgstr "L'attribut a été modifié."
 
-#: preferences/views.py:584
+#: preferences/views.py:560
 msgid "The attribute was deleted."
 msgstr "L'attribut a été supprimé."
 
-#: preferences/views.py:600
+#: preferences/views.py:576
 msgid "The mandate was added."
 msgstr "Le mandat a été ajouté."
 
-#: preferences/views.py:616
+#: preferences/views.py:592
 msgid "The mandate was edited."
 msgstr "Le mandat a été modifié."
 
-#: preferences/views.py:631
+#: preferences/views.py:607
 msgid "The mandate was deleted."
 msgstr "Le mandat été supprimé."
 
diff --git a/preferences/models.py b/preferences/models.py
index 66a72f46..b52a5f07 100644
--- a/preferences/models.py
+++ b/preferences/models.py
@@ -37,36 +37,14 @@ from django.utils.translation import ugettext_lazy as _
 
 import machines.models
 
+from .utils.models import PreferencesModel
+
 from re2o.mixins import AclMixin, RevMixin
 from re2o.aes_field import AESEncryptedField
 
 from datetime import timedelta
 
 
-class PreferencesModel(models.Model):
-    """ Base object for the Preferences objects
-    Defines methods to handle the cache of the settings (they should
-    not change a lot) """
-
-    @classmethod
-    def set_in_cache(cls):
-        """ Save the preferences in a server-side cache """
-        instance, _created = cls.objects.get_or_create()
-        cache.set(cls().__class__.__name__.lower(), instance, None)
-        return instance
-
-    @classmethod
-    def get_cached_value(cls, key):
-        """ Get the preferences from the server-side cache """
-        instance = cache.get(cls().__class__.__name__.lower())
-        if instance is None:
-            instance = cls.set_in_cache()
-        return getattr(instance, key)
-
-    class Meta:
-        abstract = True
-
-
 class OptionalUser(AclMixin, PreferencesModel):
     """Options pour l'user : obligation ou nom du telephone,
     activation ou non du solde, autorisation du negatif, fingerprint etc"""
diff --git a/preferences/urls.py b/preferences/urls.py
index 4e5b1bcf..82780cb8 100644
--- a/preferences/urls.py
+++ b/preferences/urls.py
@@ -28,52 +28,53 @@ from __future__ import unicode_literals
 from django.conf.urls import url
 
 from . import views
+from .views import edit_options
 
 
 urlpatterns = [
     url(
         r"^edit_options/(?P<section>OptionalUser)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>OptionalMachine)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>OptionalTopologie)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>GeneralOption)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>AssoOption)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>HomeOption)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>MailMessageOption)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>RadiusOption)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(
         r"^edit_options/(?P<section>CotisationsOption)$",
-        views.edit_options,
+        edit_options,
         name="edit-options",
     ),
     url(r"^add_service/$", views.add_service, name="add-service"),
diff --git a/preferences/utils/__init__.py b/preferences/utils/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/preferences/utils/models.py b/preferences/utils/models.py
new file mode 100644
index 00000000..5ade54e1
--- /dev/null
+++ b/preferences/utils/models.py
@@ -0,0 +1,55 @@
+# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
+# se veut agnostique au réseau considéré, de manière à être installable en
+# quelques clics.
+#
+# Copyright © 2020  Gabriel Détraz
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# App de gestion des machines pour re2o
+# Gabriel Détraz, Augustin Lemesle
+# Gplv2
+"""
+Utils for preferences
+"""
+
+from __future__ import unicode_literals
+
+from django.core.cache import cache
+from django.db import models
+
+
+class PreferencesModel(models.Model):
+    """ Base object for the Preferences objects
+    Defines methods to handle the cache of the settings (they should
+    not change a lot) """
+
+    @classmethod
+    def set_in_cache(cls):
+        """ Save the preferences in a server-side cache """
+        instance, _created = cls.objects.get_or_create()
+        cache.set(cls().__class__.__name__.lower(), instance, None)
+        return instance
+
+    @classmethod
+    def get_cached_value(cls, key):
+        """ Get the preferences from the server-side cache """
+        instance = cache.get(cls().__class__.__name__.lower())
+        if instance is None:
+            instance = cls.set_in_cache()
+        return getattr(instance, key)
+
+    class Meta:
+        abstract = True
diff --git a/preferences/utils/views.py b/preferences/utils/views.py
new file mode 100644
index 00000000..978b9b98
--- /dev/null
+++ b/preferences/utils/views.py
@@ -0,0 +1,68 @@
+# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
+# se veut agnostique au réseau considéré, de manière à être installable en
+# quelques clics.
+#
+# Copyright © 2020  Gabriel Détraz
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# App de gestion des machines pour re2o
+# Gabriel Détraz, Augustin Lemesle
+# Gplv2
+"""
+Utils for preferences
+"""
+
+from __future__ import unicode_literals
+from django.urls import reverse
+from django.shortcuts import redirect
+from django.contrib import messages
+from django.db.models import ProtectedError
+from django.db import transaction
+from django.utils.translation import ugettext as _
+
+from reversion import revisions as reversion
+
+from re2o.views import form
+
+def edit_options_template_function(request, section, forms, models):
+    """ Edition des préférences générales"""
+    model = getattr(models, section, None)
+    form_instance = getattr(forms, "Edit" + section + "Form", None)
+    if not (model or form_instance):
+        messages.error(request, _("Unknown object."))
+        return redirect(reverse("preferences:display-options"))
+
+    options_instance, _created = model.objects.get_or_create()
+    can, msg, permissions = options_instance.can_edit(request.user)
+    if not can:
+        messages.error(request, acl_error_message(msg, permissions))
+        return redirect(reverse("index"))
+    options = form_instance(
+        request.POST or None, request.FILES or None, instance=options_instance
+    )
+    if options.is_valid():
+        with transaction.atomic(), reversion.create_revision():
+            options.save()
+            reversion.set_user(request.user)
+            reversion.set_comment(
+                "Field(s) edited: %s"
+                % ", ".join(field for field in options.changed_data)
+            )
+            messages.success(request, _("The preferences were edited."))
+        return redirect(reverse("preferences:display-options"))
+    return form({"options": options}, "preferences/edit_preferences.html", request)
+
+
diff --git a/preferences/views.py b/preferences/views.py
index a7df9cef..06d9871e 100644
--- a/preferences/views.py
+++ b/preferences/views.py
@@ -86,6 +86,7 @@ from .models import (
 from . import models
 from . import forms
 
+from .utils.views import edit_options_template_function
 
 @login_required
 @can_view_all(
@@ -153,32 +154,7 @@ def display_options(request):
 
 @login_required
 def edit_options(request, section):
-    """ Edition des préférences générales"""
-    model = getattr(models, section, None)
-    form_instance = getattr(forms, "Edit" + section + "Form", None)
-    if not (model or form_instance):
-        messages.error(request, _("Unknown object."))
-        return redirect(reverse("preferences:display-options"))
-
-    options_instance, _created = model.objects.get_or_create()
-    can, msg, permissions = options_instance.can_edit(request.user)
-    if not can:
-        messages.error(request, acl_error_message(msg, permissions))
-        return redirect(reverse("index"))
-    options = form_instance(
-        request.POST or None, request.FILES or None, instance=options_instance
-    )
-    if options.is_valid():
-        with transaction.atomic(), reversion.create_revision():
-            options.save()
-            reversion.set_user(request.user)
-            reversion.set_comment(
-                "Field(s) edited: %s"
-                % ", ".join(field for field in options.changed_data)
-            )
-            messages.success(request, _("The preferences were edited."))
-        return redirect(reverse("preferences:display-options"))
-    return form({"options": options}, "preferences/edit_preferences.html", request)
+    return edit_options_template_function(request, section, forms, models)
 
 
 @login_required