I had a problem with my Django program. I'm a beginner in Django, I was looking for an answer with different posts with the same error than mine but no success ...
Here's my traceback :
Environment:
Request Method: POST
Request URL: http://127.0.0.1:8000/pod
Django Version: 1.11.2
Python Version: 2.7.13
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'labinit',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "C:\Python27\lib\site-packages\django\core\handlers\exception.py" in inner
41. response = get_response(request)
File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "C:\Python27\lib\site-packages\django\core\handlers\base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\admin\Desktop\django_learneo3\Learneo\labinit\views.py" in groupe_pod
121. if form.is_valid():
File "C:\Python27\lib\site-packages\django\forms\forms.py" in is_valid
183. return self.is_bound and not self.errors
File "C:\Python27\lib\site-packages\django\forms\forms.py" in errors
175. self.full_clean()
File "C:\Python27\lib\site-packages\django\forms\forms.py" in full_clean
384. self._clean_fields()
File "C:\Python27\lib\site-packages\django\forms\forms.py" in _clean_fields
396. value = field.widget.value_from_datadict(self.data, self.files, self.add_prefix(name))
File "C:\Python27\lib\site-packages\django\forms\widgets.py" in
value_from_datadict
639. getter = data.get
Exception Type: AttributeError at /pod
Exception Value: 'unicode' object has no attribute 'get'
This issue appears since I have changed my init fonction, for the form that I use in my view :
Forms:
class Groupe_Form(forms.ModelForm) :
def __init__(self, nom_groupe, *args, **kwargs):
super(Groupe_Form,self).__init__(*args, **kwargs)
self.fields['pod'].widget = forms.Select()
pod1 = Groupe.objects.filter(nom_groupe = nom_groupe).values_list('pod', flat = True)
pods = list(pod1)
self.fields['pod'].queryset = Pod.objects.filter(id__in=pods)
class Meta:
model = Groupe
fields = ['pod']
Views :
def groupe_pod(request):
global new_groupe
grp = new_groupe
form = forms.Groupe_Form(request.POST, grp)
if request.method == 'POST':
if form.is_valid():
print "form was valid"
data_groupe_pod = request.POST.get('grp_pod')
print "data_groupe :", data_groupe_pod
global new_cours
print new_cours
if new_cours == "ICND1":
return redirect('http://127.0.0.1:8000/icnd_1')
elif new_cours == "ICND2":
return redirect('http://127.0.0.1:8000/icnd_2')
else :
form = forms.Groupe_Form(new_groupe)
return render(request, 'pod.html', locals())
I've tried many things, I really don't know where is the problem in my Django code.
Your form's __init__ method is:
def __init__(self, nom_groupe, *args, **kwargs):
Therefore you should instantiate it with:
form = forms.Groupe_Form(grp, request.POST)
You currently have the arguments the other way round.
Your __init__ signature has as its first parameter nom_groupe. In form = forms.Groupe_Form(request.POST, grp) you pass request.POST as the first parameter. You have to switch the parameters:
form = forms.Groupe_Form(grp, request.POST)
Related
Well i am just trying to show feed back of the following users but got an error:RelatedObjectDoesNotExist at /profiles/user-follow-feed/
User has no user. I don't understand how can i fix it. Need help to fix it out. many thanks in advance.
views.py
class FolloweHomeView(View):
def get(self, request, *args, **kwargs):
user = request.user.userprofile
is_following_user_ids = [x.user.id for x in user.follower.all()]
qs = Post.objects.filter(username__id__in=is_following_user_ids).order_by("-create_date")[:3]
return render(request, "profiles/follower_home_feed.html", {'object_list': qs})
models.py
class ProfileManager(models.Manager):
def toggle_follow(self, request_user, username_to_toggle):
profile_ = UserProfile.objects.get(user__username__iexact=username_to_toggle)
user = request_user
is_following = False
if user in profile_.follower.all():
profile_.follower.remove(user)
else:
profile_.follower.add(user)
is_following = True
return profile_, is_following
class UserProfile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
follower = models.ManyToManyField(User, related_name ='is_following',blank=True,)
avatar = models.ImageField(("Avatar"), upload_to='displays', default = '1.jpg',height_field=None, width_field=None, max_length=None,blank = True)
create_date = models.DateField(auto_now_add=True,null=True)
objects = ProfileManager()
def __str__(self):
return f'{self.user.username}'
traceback:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/profiles/user-follow-feed/
Django Version: 3.0.3
Python Version: 3.8.3
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'bootstrap3',
'accounts',
'posts',
'profiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback (most recent call last):
File "C:\Users\AHMED\anaconda3\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
response = get_response(request)
File "C:\Users\AHMED\anaconda3\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "C:\Users\AHMED\anaconda3\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\AHMED\anaconda3\lib\site-packages\django\views\generic\base.py", line 71, in view
return self.dispatch(request, *args, **kwargs)
File "C:\Users\AHMED\anaconda3\lib\site-packages\django\views\generic\base.py", line 97, in dispatch
return handler(request, *args, **kwargs)
File "C:\Users\AHMED\grapPub\grabpublic\profiles\views.py", line 99, in get
is_following_user_ids = [x.user.id for x in user.follower.all()]
File "C:\Users\AHMED\grapPub\grabpublic\profiles\views.py", line 99, in <listcomp>
is_following_user_ids = [x.user.id for x in user.follower.all()]
File "C:\Users\AHMED\anaconda3\lib\site-packages\django\db\models\fields\related_descriptors.py", line 420, in __get__
raise self.RelatedObjectDoesNotExist(
Exception Type: RelatedObjectDoesNotExist at /profiles/user-follow-feed/
Exception Value: User has no user.
if more detail is require than tell me i will update my question with that information
The follower is a ManyToManyField to the User model, so the x in the list comprehension is a User object:
is_following_user_ids = [x.id for x in user.follower.all()]
You however do not need to perform this kind of logic, you can directly filter with:
qs = Post.objects.filter(
username__user__is_following__user=request.user
).order_by('-create_date')[:3]
this will query the Post objects in a single query.
Note: A ForeignKey does not store the string representation (or name) of the
referenced object in the column, it stores the primary key of the record it
references in a column with an _id suffix to a ForeignKey field. Therefore
ForeignKeys usually do not end with a name suffix. You might want to
consider renaming the username field to author.
Note: You can limit views to a class-based view to authenticated users with the
LoginRequiredMixin mixin [Django-doc].
my issue is exactly as the problem states...I am unable to get form validation errors to work. I will post what I am currently trying below. Please let me know how I can amend my code in order to get this working. Currently, I can even successfully submit the form with any name. So clearly what I have set in forms.py is not even working...
forms.py
class PackingListForm(forms.ModelForm):
class Meta:
model = PackingList
fields = ['Exporter', 'Consignee', 'Reference_Number', ... ]
def clean_test_value(self):
data = self.cleaned_data.get('Exporter')
if not Exporter == 'Jeff':
raise forms.ValidationError('ahhhh Error!')
return data
template (packlist.html)
<td rowspan="3"colspan="2">Exporter: {{ form.Exporter }}
{% for error in form.Exporter.errors %}
<P class='help is-danger'>{{ error }}</p>
{% endfor %}
</td>
views.py
def PackingListView(request):
if request.method == "POST":
form = PackingListForm(request.POST)
if form.is_valid():
.....do stuff here......
else:
return render(request, 'packlist.html', {'form': form})
else:
form = PackingListForm()
return render(request, 'packlist.html', {'form': form})
traceback
Request Method: POST
Request URL: http://127.0.0.1:8000/create/packing_list
Django Version: 1.11
Python Version: 2.7.10
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'Poseidon',
'crispy_forms',
'bootstrap_modal_forms']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/Library/Python/2.7/site-packages/django/core/handlers/exception.py" in inner
41. response = get_response(request)
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Library/Python/2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
23. return view_func(request, *args, **kwargs)
File "/Users/andrews/Desktop/WBU2/Poseidon/views.py" in PackingListView
188. if form.is_valid():
File "/Library/Python/2.7/site-packages/django/forms/forms.py" in is_valid
183. return self.is_bound and not self.errors
File "/Library/Python/2.7/site-packages/django/forms/forms.py" in errors
175. self.full_clean()
File "/Library/Python/2.7/site-packages/django/forms/forms.py" in full_clean
384. self._clean_fields()
File "/Library/Python/2.7/site-packages/django/forms/forms.py" in _clean_fields
405. value = getattr(self, 'clean_%s' % name)()
File "/Users/andrews/Desktop/WBU2/Poseidon/forms.py" in clean_Exporter
52. if not Exporter == 'Greg':
Exception Type: NameError at /create/packing_list
Exception Value: global name 'Exporter' is not defined
Since the name of the field is Exporter, the cleaning function should be clean_Exporter:
class PackingListForm(forms.ModelForm):
class Meta:
model = PackingList
fields = ['Exporter', 'Consignee', 'Reference_Number']
def clean_Exporter(self):
data = self.cleaned_data.get('Exporter')
if data != 'Jeff':
raise forms.ValidationError('ahhhh Error!')
return data
Note: normally the name of the fields in a Django model are written in snake_case, not PerlCase, so it should be: exporter instead of Exporter.
For my API, I have to find out to what projects a user has access to, and return them. I try to do this like so:
def get_queryset(self):
user = self.request.user
allow_all = user.is_superuser or user.is_staff or settings.API_UNSAFE
if self.action == 'list' and not allow_all:
projects = Project.objects.all()
user_projects = Project.objects.none()
for project in projects:
permission = Permission.objects.filter(user=user.user, table_name='Project', fk=project.id)
if permission.count() > 0:
user_projects = user_projects | project
return user_projects
return Project.objects.all()
Which results in:
'Project' object is not iterable
So I used values() instead of all(). But when you use .values it's no longer possible to concat the instance with a queryset. Meaning I have to query the same project twice, resulting in this hacky approach:
projects = Project.objects.values()
user_projects = Project.objects.none()
for project in projects:
permission = Permission.objects.filter(user=user.user, table_name='Project', fk=project['id'])
if permission.count() > 0:
# Wanted to use .get() here, but that threw the same error
user_project = Project.objects.filter(id=project['id'])
user_projects |= user_project
return user_projects
Surely there is a better way, what am I doing wrong?
Stacktrace:
Environment:
Request Method: GET
Request URL: http://localhost:8000/api/projects/
Django Version: 2.0.6
Python Version: 3.7.0
Installed Applications:
['apps.api',
'rest_framework',
'apps.dashboard',
'apps.login',
'apps.base',
'sass_processor',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django_seed',
'rest_framework.authtoken']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner
35. response = get_response(request)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
128. response = self.process_exception_by_middleware(e, request)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
126. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/django/views/decorators/csrf.py" in wrapped_view
54. return view_func(*args, **kwargs)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/viewsets.py" in view
95. return self.dispatch(request, *args, **kwargs)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/views.py" in dispatch
494. response = self.handle_exception(exc)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/views.py" in handle_exception
454. self.raise_uncaught_exception(exc)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/views.py" in dispatch
491. response = handler(request, *args, **kwargs)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/mixins.py" in list
48. return Response(serializer.data)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/serializers.py" in data
742. ret = super(ListSerializer, self).data
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/serializers.py" in data
262. self._data = self.to_representation(self.instance)
File "/Users/Ruben/Documents/Projects/BIM_Github/bim-data-manager/venv/lib/python3.7/site-packages/rest_framework/serializers.py" in to_representation
660. self.child.to_representation(item) for item in iterable
Exception Type: TypeError at /api/projects/
Exception Value: 'Project' object is not iterable
The error has nothing at all to do with accessing the project ID.
The result of | between an empty queryset and an instance is the instance. So this means that when your permission exists, your user_projects variable becomes a single instance; then, later, the serializer fails as it is expecting a queryset.
You've already got a better way of doing this in a single query, but for reference if you did want to build up a list like this the better way would be to accumulate the IDs and then get them all in one query at the end; or, simply append the instances to a list.
I'm trying to send a verification email after a user registers an account using django-templated-mail.
This is the error I get after the user is created:
AttributeError 'dict' object has no attribute 'get_host'
So Django is trying to call get_host() and is unable to? So it's an error because it can't retrieve my host name?
Can someone point out what am I missing here?
class UserListView(generics.ListCreateAPIView):
serializer_class = UserSerializer
def perform_create(self, serializer):
user = serializer.save()
context = {'user': user}
to = user.email
email.ActivationEmail(context).send(to)
class UserSerializer(serializers.ModelSerializer):
class Meta:
model = User
fields = ('id', 'password', 'email')
extra_kwargs = {'password': {'write_only': True}}
def create(self, validated_data):
password = validated_data.pop('password')
user = super(UserSerializer, self).create(validated_data)
user.set_password(password)
user.save()
return user
class ActivationEmail(BaseEmailMessage):
template_name = 'email/activation.html'
def get_context_data(self):
context = super(ActivationEmail, self).get_context_data()
user = context.get('user')
context['uid'] = utils.encode_uid(user.pk)
context['token'] = default_token_generator.make_token(user)
context['url'] = 'verify/{uid}/{token}'.format(**context)
return context
Traceback:
Environment:
Request Method: POST
Request URL: http://localhost:8000/users/
Django Version: 2.0
Python Version: 3.6.6
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'corsheaders',
'templated_mail',
'accounts',]
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'corsheaders.middleware.CorsMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'simple_history.middleware.HistoryRequestMiddleware']
Traceback:
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
35. response = get_response(request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
128. response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
126. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py" in wrapped_view
54. return view_func(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py" in view
69. return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
483. response = self.handle_exception(exc)
File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py" in handle_exception
443. self.raise_uncaught_exception(exc)
File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
480. response = handler(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/rest_framework/generics.py" in post
244. return self.create(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/rest_framework/mixins.py" in create
21. self.perform_create(serializer)
File "/code/accounts/views.py" in perform_create
54. email.ActivationEmail(context).send(to)
File "/usr/local/lib/python3.6/site-packages/templated_mail/mail.py" in send
69. self.render()
File "/usr/local/lib/python3.6/site-packages/templated_mail/mail.py" in render
61. context = make_context(self.get_context_data(), request=self.request)
File "/code/accounts/email.py" in get_context_data
12. context = super(ActivationEmail, self).get_context_data()
File "/usr/local/lib/python3.6/site-packages/templated_mail/mail.py" in get_context_data
33. site = get_current_site(self.request)
File "/usr/local/lib/python3.6/site-packages/django/contrib/sites/shortcuts.py" in get_current_site
16. return RequestSite(request)
File "/usr/local/lib/python3.6/site-packages/django/contrib/sites/requests.py" in __init__
10. self.domain = self.name = request.get_host()
Exception Type: AttributeError at /users/
Exception Value: 'dict' object has no attribute 'get_host'
Thank you much appreciate any help you may be able to render.
ActivationEmail takes the request as the first positional argument to its initializer. You're passing the context as the first positional argument, which causes ActivationEmail to fall over.
Make sure you pass the request instance as well as the context to ActivationEmail when you create it.
email.ActivationEmail(self.request, context).send(to)
You instantiated ActivationEmail incorrectly. The request parameter should be an HttpRequest object instead of a dict.
I'm a beginner to the Django Rest Frame work. I have a problem from a long period i try to find a solution through many forums but unfortunately i didn't succeed. hope you help me
models.py
from __future__ import unicode_literals
from django.contrib.auth.models import User
from django.db import models
class Account(models.Model):
my_user=models.OneToOneField(User,on_delete=models.CASCADE)
statut=models.CharField(max_length=80)
date=models.DateField(auto_now=True,auto_now_add=False)
def __unicode__(self):
return self.my_user.first_name
Now i want to update Account serilizer .
Serializers .py
class AccountUpdateSerializer(serializers.ModelSerializer):
username=serializers.CharField(source ='my_user.username')
class Meta:
model= Account
fields=['id','username','statut','date']
def update(self, instance, validated_data):
print(instance)
instance.statut = validated_data.get('statut', instance.statut)
instance.my_user.username=validated_data['username']
return instance
Trace Back:
Environment:
Request Method: PUT
Request URL: http://127.0.0.1:9000/api/account/edit/1/
Django Version: 1.9
Python Version: 2.7.6
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'project',
'sponsors',
'contacts',
'medias',
'conferencier',
'competition',
'poste',
'account']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
149. response = self.process_exception_by_middleware(e, request)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
147. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/django/views/decorators/csrf.py" in wrapped_view
58. return view_func(*args, **kwargs)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/django/views/generic/base.py" in view
68. return self.dispatch(request, *args, **kwargs)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/views.py" in dispatch
474. response = self.handle_exception(exc)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/views.py" in handle_exception
434. self.raise_uncaught_exception(exc)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/views.py" in dispatch
471. response = handler(request, *args, **kwargs)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/generics.py" in put
256. return self.update(request, *args, **kwargs)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/mixins.py" in update
70. self.perform_update(serializer)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/mixins.py" in perform_update
74. serializer.save()
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/serializers.py" in save
187. self.instance = self.update(self.instance, validated_data)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/rest_framework/serializers.py" in update
907. setattr(instance, attr, value)
File "/home/asus/Documents/Gsource/gsource/local/lib/python2.7/site-packages/django/db/models/fields/related_descriptors.py" in __set__
207. self.field.remote_field.model._meta.object_name,
Exception Type: ValueError at /api/account/edit/1/
Exception Value: Cannot assign "{u'username': u'kais'}": "Account.my_user" must be a "User" instance.
Your update method is not called, because it is a method of the meta class of the serializer (AccountUpdateSerializer.Meta), not the serializer class AccountUpdateSerializer itself.
Here is how it should look:
class AccountUpdateSerializer(serializers.ModelSerializer):
username=serializers.CharField(source ='my_user.username')
class Meta:
model= Account
fields=['id','username','statut','date']
def update(self, instance, validated_data):
print(instance)
instance.statut = validated_data.get('statut', instance.statut)
instance.my_user.username = validated_data['username']
return instance
(Or did you just post your code incorrectly?)