Unique email

users/forms.py

@@ -19,13 +19,20 @@ class CreateUserForm(forms.ModelForm):
         model = User
         fields = ("username", "last_name", "first_name", "email")
 
-    school = forms.ModelChoiceField(queryset=School.objects.all(), label="École")
+    school = forms.ModelChoiceField (queryset=School.objects.all(), label="École")
+
+    def __init__(self, *args, **kwargs):
+        self.user = kwargs.pop('user', None)
+        super(CreateUserForm, self).__init__(*args, **kwargs)
 
     def clean(self):
         cleaned_data = super().clean()
         email = cleaned_data.get("email")
         if User.objects.filter(email=email).count() > 0:
-            raise forms.ValidationError("L'email est déjà utilisé")
+            if User.objects.filter(email=email).count() == 1 and User.objects.get(email=email) == self.user:
+                pass
+            else:
+                raise forms.ValidationError("L'adresse email est déjà utilisée")
 
 class CreateGroupForm(forms.ModelForm):
     """

users/views.py

@@ -171,7 +171,7 @@ def createUser(request):
     """
     Displays a :class:`~users.forms.CreateUserForm` to create a user (:class:`django.contrib.auth.models.User`).
     """
-    form = CreateUserForm(request.POST or None)
+    form = CreateUserForm(request.POST or None, user=User.objects.none())
     if(form.is_valid()):
         user = form.save(commit=False)
         user.save()
@@ -272,7 +272,7 @@ def editUser(request, pk):
     Displays a :class:`~users.forms.CreateUserForm` to edit a user (:class:`django.contrib.auth.models.User`).
     """
     user = get_object_or_404(User, pk=pk)
-    form = CreateUserForm(request.POST or None, instance=user, initial = {'school': user.profile.school})
+    form = CreateUserForm(request.POST or None, instance=user, initial = {'school': user.profile.school}, user=user)
     if(form.is_valid()):
         user.profile.school = form.cleaned_data['school']
         user.save()