Group: add a label on users to delete

core/templates/core/group_detail.jinja

@@ -12,6 +12,7 @@
     {% else %}
         <form action="{{ url('core:group_detail', object.id) }}" method="post" id="add_users">
             {% csrf_token %}
+            <label for="{{ form.users_removed.id_for_label }}">{{ form.users_removed.label }} :</label>
             {{ form.users_removed.errors }}
             {% for user in form.users_removed %}
                 <label for="{{ user.id_for_label }}">

core/views/group.py

@@ -52,7 +52,7 @@ class EditMembersForm(forms.Form):
         super(EditMembersForm, self).__init__(*args, **kwargs)
         self.fields["users_removed"] = forms.ModelMultipleChoiceField(
             User.objects.filter(id__in=self.current_users).all(),
-            label=None,
+            label=_("Users to delete"),
             required=False,
             widget=forms.CheckboxSelectMultiple,
         )
@@ -65,6 +65,9 @@ class EditMembersForm(forms.Form):
     )
 
     def clean_users_added(self):
+        """
+            Check that the user is not trying to add an user already in the group
+        """
         cleaned_data = super(EditMembersForm, self).clean()
         users_added = cleaned_data.get("users_added", None)
         if not users_added: