Pep8 et nettoyage, et doc pour l'app preferences

preferences/admin.py

@@ -20,35 +20,53 @@
 # 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.
-
+"""
+Classes admin pour les models de preferences
+"""
 from __future__ import unicode_literals
 
 from django.contrib import admin
 from reversion.admin import VersionAdmin
 
-from .models import OptionalUser, OptionalMachine, OptionalTopologie, GeneralOption, Service, AssoOption, MailMessageOption
+from .models import OptionalUser, OptionalMachine, OptionalTopologie
+from .models import GeneralOption, Service, AssoOption, MailMessageOption
+
 
 class OptionalUserAdmin(VersionAdmin):
+    """Class admin options user"""
     pass
 
+
 class OptionalTopologieAdmin(VersionAdmin):
+    """Class admin options topologie"""
     pass
 
+
 class OptionalMachineAdmin(VersionAdmin):
+    """Class admin options machines"""
     pass
 
+
 class GeneralOptionAdmin(VersionAdmin):
+    """Class admin options générales"""
     pass
 
+
 class ServiceAdmin(VersionAdmin):
+    """Class admin gestion des services de la page d'accueil"""
     pass
 
+
 class AssoOptionAdmin(VersionAdmin):
+    """Class admin options de l'asso"""
     pass
 
+
 class MailMessageOptionAdmin(VersionAdmin):
+    """Class admin options mail"""
     pass
 
+
 admin.site.register(OptionalUser, OptionalUserAdmin)
 admin.site.register(OptionalMachine, OptionalMachineAdmin)
 admin.site.register(OptionalTopologie, OptionalTopologieAdmin)

preferences/forms.py

@@ -19,71 +19,116 @@
 # 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.
+"""
+Formulaire d'edition des réglages : user, machine, topologie, asso...
+"""
 
 from __future__ import unicode_literals
 
-from django.forms import ModelForm, Form, ValidationError
+from django.forms import ModelForm, Form
 from django import forms
-from .models import OptionalUser, OptionalMachine, OptionalTopologie, GeneralOption, AssoOption, MailMessageOption, Service
-from django.db.models import Q
+from .models import OptionalUser, OptionalMachine, OptionalTopologie
+from .models import GeneralOption, AssoOption, MailMessageOption, Service
+
 
 class EditOptionalUserForm(ModelForm):
+    """Formulaire d'édition des options de l'user. (solde, telephone..)"""
     class Meta:
         model = OptionalUser
         fields = '__all__'
 
     def __init__(self, *args, **kwargs):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
-        super(EditOptionalUserForm, self).__init__(*args, prefix=prefix, **kwargs)
-        self.fields['is_tel_mandatory'].label = 'Exiger un numéro de téléphone'
-        self.fields['user_solde'].label = 'Activation du solde pour les utilisateurs'
+        super(EditOptionalUserForm, self).__init__(
+            *args,
+            prefix=prefix,
+            **kwargs
+        )
+        self.fields['is_tel_mandatory'].label = 'Exiger un numéro de\
+        téléphone'
+        self.fields['user_solde'].label = 'Activation du solde pour\
+        les utilisateurs'
+
 
 class EditOptionalMachineForm(ModelForm):
+    """Options machines (max de machines, etc)"""
     class Meta:
         model = OptionalMachine
         fields = '__all__'
 
     def __init__(self, *args, **kwargs):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
-        super(EditOptionalMachineForm, self).__init__(*args, prefix=prefix, **kwargs)
-        self.fields['password_machine'].label = "Possibilité d'attribuer un mot de passe par interface"
-        self.fields['max_lambdauser_interfaces'].label = "Maximum d'interfaces autorisées pour un user normal"
-        self.fields['max_lambdauser_aliases'].label = "Maximum d'alias dns autorisés pour un user normal"
+        super(EditOptionalMachineForm, self).__init__(
+            *args,
+            prefix=prefix,
+            **kwargs
+        )
+        self.fields['password_machine'].label = "Possibilité d'attribuer\
+        un mot de passe par interface"
+        self.fields['max_lambdauser_interfaces'].label = "Maximum\
+        d'interfaces autorisées pour un user normal"
+        self.fields['max_lambdauser_aliases'].label = "Maximum d'alias\
+        dns autorisés pour un user normal"
+
 
 class EditOptionalTopologieForm(ModelForm):
+    """Options de topologie, formulaire d'edition (vlan par default etc)"""
     class Meta:
         model = OptionalTopologie
         fields = '__all__'
 
     def __init__(self, *args, **kwargs):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
-        super(EditOptionalTopologieForm, self).__init__(*args, prefix=prefix, **kwargs)
-        self.fields['vlan_decision_ok'].label = "Vlan où placer les machines après acceptation RADIUS"
-        self.fields['vlan_decision_nok'].label = "Vlan où placer les machines après rejet RADIUS"
+        super(EditOptionalTopologieForm, self).__init__(
+            *args,
+            prefix=prefix,
+            **kwargs
+        )
+        self.fields['vlan_decision_ok'].label = "Vlan où placer les\
+        machines après acceptation RADIUS"
+        self.fields['vlan_decision_nok'].label = "Vlan où placer les\
+        machines après rejet RADIUS"
+
 
 class EditGeneralOptionForm(ModelForm):
+    """Options générales (affichages de résultats de recherche, etc)"""
     class Meta:
         model = GeneralOption
         fields = '__all__'
 
     def __init__(self, *args, **kwargs):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
-        super(EditGeneralOptionForm, self).__init__(*args, prefix=prefix, **kwargs)
-        self.fields['search_display_page'].label = 'Resultats affichés dans une recherche'
-        self.fields['pagination_number'].label = 'Items par page, taille normale (ex users)'
-        self.fields['pagination_large_number'].label = 'Items par page, taille élevée (machines)'
-        self.fields['req_expire_hrs'].label = 'Temps avant expiration du lien de reinitialisation de mot de passe (en heures)'
+        super(EditGeneralOptionForm, self).__init__(
+            *args,
+            prefix=prefix,
+            **kwargs
+        )
+        self.fields['search_display_page'].label = 'Resultats\
+        affichés dans une recherche'
+        self.fields['pagination_number'].label = 'Items par page,\
+        taille normale (ex users)'
+        self.fields['pagination_large_number'].label = 'Items par page,\
+        taille élevée (machines)'
+        self.fields['req_expire_hrs'].label = 'Temps avant expiration du lien\
+        de reinitialisation de mot de passe (en heures)'
         self.fields['site_name'].label = 'Nom du site web'
-        self.fields['email_from'].label = 'Adresse mail d\'expedition automatique'
+        self.fields['email_from'].label = "Adresse mail d\
+        'expedition automatique"
+
 
 class EditAssoOptionForm(ModelForm):
+    """Options de l'asso (addresse, telephone, etc)"""
     class Meta:
         model = AssoOption
         fields = '__all__'
 
     def __init__(self, *args, **kwargs):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
-        super(EditAssoOptionForm, self).__init__(*args, prefix=prefix, **kwargs)
+        super(EditAssoOptionForm, self).__init__(
+            *args,
+            prefix=prefix,
+            **kwargs
+        )
         self.fields['name'].label = 'Nom de l\'asso'
         self.fields['siret'].label = 'SIRET'
         self.fields['adresse1'].label = 'Adresse (ligne 1)'
@@ -91,20 +136,31 @@ class EditAssoOptionForm(ModelForm):
         self.fields['contact'].label = 'Email de contact'
         self.fields['telephone'].label = 'Numéro de téléphone'
         self.fields['pseudo'].label = 'Pseudo d\'usage'
-        self.fields['utilisateur_asso'].label = 'Compte utilisé pour faire les modifications depuis /admin'
+        self.fields['utilisateur_asso'].label = 'Compte utilisé pour\
+        faire les modifications depuis /admin'
+
 
 class EditMailMessageOptionForm(ModelForm):
+    """Formulaire d'edition des messages de bienvenue personnalisés"""
     class Meta:
         model = MailMessageOption
         fields = '__all__'
 
     def __init__(self, *args, **kwargs):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
-        super(EditMailMessageOptionForm, self).__init__(*args, prefix=prefix, **kwargs)
-        self.fields['welcome_mail_fr'].label = 'Message dans le mail de bienvenue en français'
-        self.fields['welcome_mail_en'].label = 'Message dans le mail de bienvenue en anglais'
+        super(EditMailMessageOptionForm, self).__init__(
+            *args,
+            prefix=prefix,
+            **kwargs
+        )
+        self.fields['welcome_mail_fr'].label = 'Message dans le\
+        mail de bienvenue en français'
+        self.fields['welcome_mail_en'].label = 'Message dans le\
+        mail de bienvenue en anglais'
+
 
 class ServiceForm(ModelForm):
+    """Edition, ajout de services sur la page d'accueil"""
     class Meta:
         model = Service
         fields = '__all__'
@@ -113,6 +169,11 @@ class ServiceForm(ModelForm):
         prefix = kwargs.pop('prefix', self.Meta.model.__name__)
         super(ServiceForm, self).__init__(*args, prefix=prefix, **kwargs)
 
-class DelServiceForm(Form):
-    services = forms.ModelMultipleChoiceField(queryset=Service.objects.all(), label="Enregistrements service actuels",  widget=forms.CheckboxSelectMultiple)
 
+class DelServiceForm(Form):
+    """Suppression de services sur la page d'accueil"""
+    services = forms.ModelMultipleChoiceField(
+        queryset=Service.objects.all(),
+        label="Enregistrements service actuels",
+        widget=forms.CheckboxSelectMultiple
+    )

preferences/models.py

@@ -20,26 +20,38 @@
 # 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.
-
+"""
+Reglages généraux, machines, utilisateurs, mail, general pour l'application.
+"""
 from __future__ import unicode_literals
 
 from django.db import models
 from cotisations.models import Paiement
-from machines.models import Vlan
+
 
 class OptionalUser(models.Model):
+    """Options pour l'user : obligation ou nom du telephone,
+    activation ou non du solde, autorisation du negatif, fingerprint etc"""
     PRETTY_NAME = "Options utilisateur"
 
     is_tel_mandatory = models.BooleanField(default=True)
     user_solde = models.BooleanField(default=False)
-    solde_negatif = models.DecimalField(max_digits=5, decimal_places=2, default=0) 
+    solde_negatif = models.DecimalField(
+        max_digits=5,
+        decimal_places=2,
+        default=0
+    )
     gpg_fingerprint = models.BooleanField(default=True)
 
     def clean(self):
+        """Creation du mode de paiement par solde"""
         if self.user_solde:
             Paiement.objects.get_or_create(moyen="Solde")
 
+
 class OptionalMachine(models.Model):
+    """Options pour les machines : maximum de machines ou d'alias par user
+    sans droit, activation de l'ipv6"""
     PRETTY_NAME = "Options machines"
 
     password_machine = models.BooleanField(default=False)
@@ -47,21 +59,43 @@ class OptionalMachine(models.Model):
     max_lambdauser_aliases = models.IntegerField(default=10)
     ipv6 = models.BooleanField(default=False)
 
+
 class OptionalTopologie(models.Model):
+    """Reglages pour la topologie : mode d'accès radius, vlan où placer
+    les machines en accept ou reject"""
     PRETTY_NAME = "Options topologie"
     MACHINE = 'MACHINE'
     DEFINED = 'DEFINED'
     CHOICE_RADIUS = (
-            (MACHINE, 'Sur le vlan de la plage ip machine'),
-            (DEFINED, 'Prédéfini dans "Vlan où placer les machines après acceptation RADIUS"'),
+        (MACHINE, 'Sur le vlan de la plage ip machine'),
+        (DEFINED, 'Prédéfini dans "Vlan où placer les machines\
+            après acceptation RADIUS"'),
     )
 
+    radius_general_policy = models.CharField(
+        max_length=32,
+        choices=CHOICE_RADIUS,
+        default='DEFINED'
+    )
+    vlan_decision_ok = models.OneToOneField(
+        'machines.Vlan',
+        on_delete=models.PROTECT,
+        related_name='decision_ok',
+        blank=True,
+        null=True
+    )
+    vlan_decision_nok = models.OneToOneField(
+        'machines.Vlan',
+        on_delete=models.PROTECT,
+        related_name='decision_nok',
+        blank=True,
+        null=True
+    )
 
-    radius_general_policy = models.CharField(max_length=32, choices=CHOICE_RADIUS, default='DEFINED')
-    vlan_decision_ok = models.OneToOneField('machines.Vlan', on_delete=models.PROTECT, related_name='decision_ok', blank=True, null=True)
-    vlan_decision_nok = models.OneToOneField('machines.Vlan', on_delete=models.PROTECT, related_name='decision_nok', blank=True, null=True)
 
 class GeneralOption(models.Model):
+    """Options générales : nombre de resultats par page, nom du site,
+    temps où les liens sont valides"""
     PRETTY_NAME = "Options générales"
 
     search_display_page = models.IntegerField(default=15)
@@ -71,30 +105,44 @@ class GeneralOption(models.Model):
     site_name = models.CharField(max_length=32, default="Re2o")
     email_from = models.EmailField(default="www-data@serveur.net")
 
+
 class Service(models.Model):
+    """Liste des services affichés sur la page d'accueil : url, description,
+    image et nom"""
     name = models.CharField(max_length=32)
     url = models.URLField()
     description = models.TextField()
-    image = models.ImageField(upload_to='logo', blank=True)    
+    image = models.ImageField(upload_to='logo', blank=True)
 
     def __str__(self):
         return str(self.name)
 
+
 class AssoOption(models.Model):
+    """Options générales de l'asso : siret, addresse, nom, etc"""
     PRETTY_NAME = "Options de l'association"
 
-    name = models.CharField(default="Association réseau école machin", max_length=256)
+    name = models.CharField(
+        default="Association réseau école machin",
+        max_length=256
+    )
     siret = models.CharField(default="00000000000000", max_length=32)
     adresse1 = models.CharField(default="1 Rue de exemple", max_length=128)
     adresse2 = models.CharField(default="94230 Cachan", max_length=128)
     contact = models.EmailField(default="contact@example.org")
     telephone = models.CharField(max_length=15, default="0000000000")
     pseudo = models.CharField(default="Asso", max_length=32)
-    utilisateur_asso = models.OneToOneField('users.User', on_delete=models.PROTECT, blank=True, null=True)
+    utilisateur_asso = models.OneToOneField(
+        'users.User',
+        on_delete=models.PROTECT,
+        blank=True,
+        null=True
+    )
+
 
 class MailMessageOption(models.Model):
+    """Reglages, mail de bienvenue et autre"""
     PRETTY_NAME = "Options de corps de mail"
 
     welcome_mail_fr = models.TextField(default="")
     welcome_mail_en = models.TextField(default="")
-

preferences/urls.py

@@ -19,6 +19,9 @@
 # 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.
+"""
+Urls de l'application preferences, pointant vers les fonctions de views
+"""
 
 from __future__ import unicode_literals
 
@@ -28,15 +31,47 @@ from . import views
 
 
 urlpatterns = [
-    url(r'^edit_options/(?P<section>OptionalUser)$', views.edit_options, name='edit-options'),
-    url(r'^edit_options/(?P<section>OptionalMachine)$', views.edit_options, name='edit-options'),
-    url(r'^edit_options/(?P<section>OptionalTopologie)$', views.edit_options, name='edit-options'),
-    url(r'^edit_options/(?P<section>GeneralOption)$', views.edit_options, name='edit-options'),
-    url(r'^edit_options/(?P<section>AssoOption)$', views.edit_options, name='edit-options'),
-    url(r'^edit_options/(?P<section>MailMessageOption)$', views.edit_options, name='edit-options'),
+    url(
+        r'^edit_options/(?P<section>OptionalUser)$',
+        views.edit_options,
+        name='edit-options'
+        ),
+    url(
+        r'^edit_options/(?P<section>OptionalMachine)$',
+        views.edit_options,
+        name='edit-options'
+        ),
+    url(
+        r'^edit_options/(?P<section>OptionalTopologie)$',
+        views.edit_options,
+        name='edit-options'
+        ),
+    url(
+        r'^edit_options/(?P<section>GeneralOption)$',
+        views.edit_options,
+        name='edit-options'
+        ),
+    url(
+        r'^edit_options/(?P<section>AssoOption)$',
+        views.edit_options,
+        name='edit-options'
+        ),
+    url(
+        r'^edit_options/(?P<section>MailMessageOption)$',
+        views.edit_options,
+        name='edit-options'
+        ),
     url(r'^add_services/$', views.add_services, name='add-services'),
-    url(r'^edit_services/(?P<servicesid>[0-9]+)$', views.edit_services, name='edit-services'),
+    url(
+        r'^edit_services/(?P<servicesid>[0-9]+)$',
+        views.edit_services,
+        name='edit-services'
+        ),
     url(r'^del_services/$', views.del_services, name='del-services'),
-    url(r'^history/(?P<object>service)/(?P<id>[0-9]+)$', views.history, name='history'),
+    url(
+        r'^history/(?P<object>service)/(?P<id>[0-9]+)$',
+        views.history,
+        name='history'
+        ),
     url(r'^$', views.display_options, name='display-options'),
 ]

preferences/views.py

@@ -23,48 +23,53 @@
 # App de gestion des machines pour re2o
 # Gabriel Détraz, Augustin Lemesle
 # Gplv2
+"""
+Vue d'affichage, et de modification des réglages (réglages machine,
+topologie, users, service...)
+"""
 
 from __future__ import unicode_literals
 
-from django.shortcuts import render
-from django.shortcuts import get_object_or_404, render, redirect
-from django.template.context_processors import csrf
+from django.shortcuts import render, redirect
 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
-from django.template import Context, RequestContext, loader
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required, permission_required
-from django.db.models import Max, ProtectedError
-from django.db import IntegrityError
-from django.core.mail import send_mail
-from django.utils import timezone
-from django.core.urlresolvers import reverse
+from django.db.models import ProtectedError
 from django.db import transaction
 
 from reversion.models import Version
 from reversion import revisions as reversion
 
+from re2o.views import form
 from .forms import ServiceForm, DelServiceForm
-from .models import Service, OptionalUser, OptionalMachine, AssoOption, MailMessageOption, GeneralOption, OptionalTopologie 
+from .models import Service, OptionalUser, OptionalMachine, AssoOption
+from .models import MailMessageOption, GeneralOption, OptionalTopologie
 from . import models
 from . import forms
 
-def form(ctx, template, request):
-    c = ctx
-    c.update(csrf(request))
-    return render(request, template, c)
-
 
 @login_required
 @permission_required('cableur')
 def display_options(request):
-    useroptions, created = OptionalUser.objects.get_or_create()
-    machineoptions, created = OptionalMachine.objects.get_or_create()
-    topologieoptions, created = OptionalTopologie.objects.get_or_create()
-    generaloptions, created = GeneralOption.objects.get_or_create()
-    assooptions, created = AssoOption.objects.get_or_create()
-    mailmessageoptions, created = MailMessageOption.objects.get_or_create()
+    """Vue pour affichage des options (en vrac) classé selon les models
+    correspondants dans un tableau"""
+    useroptions, _created = OptionalUser.objects.get_or_create()
+    machineoptions, _created = OptionalMachine.objects.get_or_create()
+    topologieoptions, _created = OptionalTopologie.objects.get_or_create()
+    generaloptions, _created = GeneralOption.objects.get_or_create()
+    assooptions, _created = AssoOption.objects.get_or_create()
+    mailmessageoptions, _created = MailMessageOption.objects.get_or_create()
     service_list = Service.objects.all()
-    return form({'useroptions': useroptions, 'machineoptions': machineoptions, 'topologieoptions': topologieoptions, 'generaloptions': generaloptions, 'assooptions' : assooptions, 'mailmessageoptions' : mailmessageoptions, 'service_list':service_list}, 'preferences/display_preferences.html', request)
+    return form({
+        'useroptions': useroptions,
+        'machineoptions': machineoptions,
+        'topologieoptions': topologieoptions,
+        'generaloptions': generaloptions,
+        'assooptions': assooptions,
+        'mailmessageoptions': mailmessageoptions,
+        'service_list': service_list
+        }, 'preferences/display_preferences.html', request)
+
 
 @login_required
 @permission_required('admin')
@@ -73,23 +78,36 @@ def edit_options(request, section):
     model = getattr(models, section, None)
     form_instance = getattr(forms, 'Edit' + section + 'Form', None)
     if model and form:
-        options_instance, created = model.objects.get_or_create()
-        options = form_instance(request.POST or None, instance=options_instance)
+        options_instance, _created = model.objects.get_or_create()
+        options = form_instance(
+            request.POST 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("Champs modifié(s) : %s" % ', '.join(field for field in options.changed_data))
+                reversion.set_comment(
+                    "Champs modifié(s) : %s" % ', '.join(
+                        field for field in options.changed_data
+                    )
+                )
             messages.success(request, "Préférences modifiées")
             return redirect("/preferences/")
-        return form({'options': options}, 'preferences/edit_preferences.html', request)
+        return form(
+            {'options': options},
+            'preferences/edit_preferences.html',
+            request
+            )
     else:
         messages.error(request, "Objet  inconnu")
         return redirect("/preferences/")
 
+
 @login_required
 @permission_required('admin')
 def add_services(request):
+    """Ajout d'un service de la page d'accueil"""
     services = ServiceForm(request.POST or None)
     if services.is_valid():
         with transaction.atomic(), reversion.create_revision():
@@ -98,29 +116,45 @@ def add_services(request):
             reversion.set_comment("Création")
         messages.success(request, "Cet enregistrement ns a été ajouté")
         return redirect("/preferences/")
-    return form({'preferenceform': services}, 'preferences/preferences.html', request)
+    return form(
+        {'preferenceform': services},
+        'preferences/preferences.html',
+        request
+        )
+
 
 @login_required
 @permission_required('admin')
 def edit_services(request, servicesid):
+    """Edition des services affichés sur la page d'accueil"""
     try:
         services_instance = Service.objects.get(pk=servicesid)
     except Service.DoesNotExist:
-        messages.error(request, u"Entrée inexistante" )
+        messages.error(request, u"Entrée inexistante")
         return redirect("/preferences/")
     services = ServiceForm(request.POST or None, instance=services_instance)
     if services.is_valid():
         with transaction.atomic(), reversion.create_revision():
             services.save()
             reversion.set_user(request.user)
-            reversion.set_comment("Champs modifié(s) : %s" % ', '.join(field for field in services.changed_data))
+            reversion.set_comment(
+                "Champs modifié(s) : %s" % ', '.join(
+                    field for field in services.changed_data
+                    )
+            )
         messages.success(request, "Service modifié")
         return redirect("/preferences/")
-    return form({'preferenceform': services}, 'preferences/preferences.html', request)
+    return form(
+        {'preferenceform': services},
+        'preferences/preferences.html',
+        request
+    )
+
 
 @login_required
 @permission_required('admin')
 def del_services(request):
+    """Suppression d'un service de la page d'accueil"""
     services = DelServiceForm(request.POST or None)
     if services.is_valid():
         services_dels = services.cleaned_data['services']
@@ -131,20 +165,28 @@ def del_services(request):
                     reversion.set_user(request.user)
                 messages.success(request, "Le services a été supprimée")
             except ProtectedError:
-                messages.error(request, "Erreur le service suivant %s ne peut être supprimé" % services_del)
+                messages.error(request, "Erreur le service\
+                suivant %s ne peut être supprimé" % services_del)
         return redirect("/preferences/")
-    return form({'preferenceform': services}, 'preferences/preferences.html', request)
+    return form(
+        {'preferenceform': services},
+        'preferences/preferences.html',
+        request
+    )
+
 
 @login_required
 @permission_required('cableur')
-def history(request, object, id):
-    if object == 'service':
+def history(request, object_name, object_id):
+    """Historique de creation et de modification d'un service affiché sur
+    la page d'accueil"""
+    if object_name == 'service':
         try:
-             object_instance = Service.objects.get(pk=id)
+            object_instance = Service.objects.get(pk=object_id)
         except Service.DoesNotExist:
-             messages.error(request, "Service inexistant")
-             return redirect("/preferences/")
-    options, created = GeneralOption.objects.get_or_create()
+            messages.error(request, "Service inexistant")
+            return redirect("/preferences/")
+    options, _created = GeneralOption.objects.get_or_create()
     pagination_number = options.pagination_number
     reversions = Version.objects.get_for_object(object_instance)
     paginator = Paginator(reversions, pagination_number)
@@ -157,4 +199,7 @@ def history(request, object, id):
     except EmptyPage:
         # If page is out of range (e.g. 9999), deliver last page of results.
         reversions = paginator.page(paginator.num_pages)
-    return render(request, 're2o/history.html', {'reversions': reversions, 'object': object_instance})
+    return render(request, 're2o/history.html', {
+        'reversions': reversions,
+        'object': object_instance
+        })