How can I access my models in django admin? - django-models

I am working on an AlumniTracker in django and till now I have created forms for user sign up and some additional information.
Even after saving the additional information form I am not able to access it in django-admin.
I am adding my models, views and forms file here.
views.py
def student_profile(request):
if request.method == 'POST':
form = StudentDetailForm(request.POST)
if form.is_valid:
student_form = form.save(commit=False)
student_form.user = request.user
student_form.save()
return redirect(reverse('homepage'))
else:
form = StudentDetailForm()
return render(request, 'authentication/student_profile.html', {'form':form})
def alumni_profile(request):
if request.method == 'POST':
form = AlumniDetailForm(request.POST)
if form.is_valid:
alumni_form = form.save(commit=False)
alumni_form.user = request.user
alumni_form.save()
return redirect(reverse('homepage'))
else:
form = AlumniDetailForm()
return render(request, 'authentication/student_profile.html', {'form':form})
forms.py
class StudentDetailForm(ModelForm):
class Meta:
model = StudentDetail
fields = ['first_name', 'last_name', 'contact_no', 'birth_date', 'course', 'session_start', 'session_end']
class AlumniDetailForm(ModelForm):
class Meta:
model = AlumniDetail
exclude = ['user']
models.py
class CustomUser(AbstractUser):
profile = models.CharField(max_length=10,choices=PROFILE_CHOICES, default='student')
def __str__(self):
return self.username
class StudentDetail(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
contact_no = models.IntegerField()
birth_date = models.DateField()
course = models.CharField(max_length=50)
session_start = models.IntegerField()
session_end = models.IntegerField()
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
class AlumniDetail(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
contact_no = models.IntegerField()
birth_date = models.DateField()
course = models.CharField(max_length=50)
session_start = models.IntegerField()
session_end = models.IntegerField()
company = models.CharField(max_length=60)

open and edit admin.py
and register your models by adding code below admin import
from .models import CustomUser,StudentDetail,AlumniDetail
admin.site.register(CustomUser)
admin.site.register(StudentDetail)
admin.site.register(AlumniDetail)

Related

Django Post request for many to many field ValueError

I am working on a post request in which the user chooses from a list of tags and makes combinations of tags. The combination of tags should then be posted. Nothing should get changed in the Tag table.
These are the models:
models.py
class Tag(models.Model):
name = models.CharField(max_length=256)
language = models.CharField(max_length=256)
objects = models.Manager()
def __str__(self):
"""Return a human readable representation of the model instance."""
return self.name or ''
#property
def tags(self):
tags = self.tagging.values('tag')
return tags.values('tag_id', 'tag__name', 'tag__language')
class Combination(models.Model):
user = models.ForeignKey(CustomUser, on_delete=models.SET_NULL, null=True)
gameround = models.ForeignKey(Gameround, on_delete=models.CASCADE, null=True)
resource = models.ForeignKey(Resource, on_delete=models.CASCADE, null=True)
tag_id = models.ManyToManyField(Tag, null=True)
created = models.DateTimeField(editable=False)
score = models.PositiveIntegerField(default=0)
objects = models.Manager()
def __str__(self):
return str(self.tag_id) or ''
This is the serializer for Combination.
serializers.py
class CombinationSerializer(serializers.ModelSerializer):
tag_id = TagWithIdSerializer(many=True, required=False, write_only=False)
resource_id = serializers.PrimaryKeyRelatedField(queryset=Resource.objects.all(),
required=True,
source='resource',
write_only=False)
gameround_id = serializers.PrimaryKeyRelatedField(queryset=Gameround.objects.all(),
required=False,
source='gameround',
write_only=False)
user_id = serializers.PrimaryKeyRelatedField(queryset=CustomUser.objects.all(),
required=False,
source='user',
write_only=False)
class Meta:
model = Combination
depth = 1
fields = ('id', 'user_id', 'gameround_id', 'resource_id', 'tag_id', 'created', 'score')
def create(self, validated_data):
user = None
request = self.context.get("request")
if request and hasattr(request, "user"):
user = request.user
score = 0
tag_data = validated_data.pop('tag_id', None)
combination = Combination(
user=user,
gameround=validated_data.get("gameround"),
resource=validated_data.get("resource"),
created=datetime.now(),
score=score
)
combination.save()
for tag_object in tag_data[0]:
combination.tag_id.add(tag_object)
return combination
def to_representation(self, instance):
rep = super().to_representation(instance)
rep['tag_id'] = TagWithIdSerializer(instance.tag_id.all(), many=True).data
return rep
I have tried posting the following JSON object to the database:
{
"gameround_id": 2015685170,
"resource_id": 327888,
"tag_id": [{"id": 2014077506, "name": "corwn","language": "en"}]
}
I am getting a ValueError: Field 'id' expected a number but got 'name'.
How can I fix this issue?
you need to provide tag id for each tag not all tag data,
Try like this
{
"gameround_id": 2015685170,
"resource_id": 327888,
"tag_id": [2014077506,2014077507]
}

__str__ returned non-string (type Category). when I add post from admin

After I added user and date_added in the Photo models, when I add post from admin its throws me an error saying: str returned non-string (type Category), when I click on the addpost link in the home template its throw another error: 'tuple' object has no attribute 'name'. how can I solve that ?
the models.py:
from django.db import models
from cloudinary.models import CloudinaryField
from django.contrib.auth.models import User
# Create your models here.
class Category(models.Model):
name = models.CharField(max_length=100, null=False, blank=False)
def __str__(self):
return self.name
class Photo(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
category = models.ForeignKey(Category, on_delete=models.SET_NULL, null=True,
blank=True)
image = CloudinaryField('image')
description = models.TextField(null=True)
date_added = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.category
the view.py file:
def home(request):
category = request.GET.get('category')
if category == None:
photos = Photo.objects.all()
else:
photos = Photo.objects.filter(category__name=category)
categories = Category.objects.all()
context = {'categories': categories, 'photos': photos}
return render(request, 'home.html', {'categories': categories, 'photos': photos} )
def viewPhoto(request, pk):
photo = Photo.objects.get(id=pk)
return render(request, 'photo.html', {'phpto': photo})
class PostCreativeView(LoginRequiredMixin, CreateView):
model = Photo, Category
fields = ['description', 'image', 'category', 'name']
template_name = 'post_create.html'
def form_valid(self, form):
form.instance.user = self.request.user
return super (PostCreativeView, self).form_valid(form)
Well it has to do with your category name and model you added into post create view.py and so you
have do something like this:
views.py
class PostCreativeView(LoginRequiredMixin, CreateView):
model = Photo
fields = ['description', 'image', 'category']
template_name = 'post_create.html'
def form_valid(self, form):
form.instance.user = self.request.user
return super (PostCreativeView, self).form_valid(form)
#.......
# Models.py
class Photo(models.Model):
#>>>...
def __str__(self):
return str(self.category)
You should return the str(…) of the category, so:
class Photo(models.Model):
# …
def __str__(self):
return str(self.category)

How do i access another column from related table other than the foreign key, when creating an API view

Im using django for a web app and i am creating REST API views. Is there a way i can access two tables in one view? If not, how can can i retrieve a non-foreign key column from a related record. The below code is retrieving a vase record based on a URL parameter. I want to access the artistName which is stored in artist table (a one-to-many with Vase table), not artist_id which is stored in Vase
class FilterVases(generics.ListAPIView):
serializer_class = VaseSerializer
def get_queryset(self):
queryset = Vase.objects.all()
artist_id = self.request.query_params.get('artist_id')
if artist_id is not None:
queryset = queryset.filter(artist_id=artist_id)
vaseID = self.request.query_params.get('vaseID')
if vaseID is not None:
queryset = queryset.filter(vaseID=vaseID)
return queryset
edited to add
This is models for Artist and Vase:
class Artist(models.Model) :
artistID = models.CharField(max_length=10)
artistName = models.CharField(max_length=100)
class Vase(models.Model):
vaseID = models.CharField(max_length=10)
vaseRef = models.CharField(max_length=255,blank=True,null=True)
inscription = models.CharField(max_length=255,blank=True,null=True)
fabric = models.CharField(max_length=100, blank=True,null=True)
subject = models.CharField(max_length=255,blank=True,null=True)
technique = models.CharField(max_length=100,blank=True,null=True)
height = models.FloatField(max_length=100,blank=True,null=True)
diameter = models.FloatField(max_length=100,blank=True,null=True)
shape = models.ForeignKey(Shape, on_delete=models.CASCADE)
artist = models.ForeignKey(Artist, on_delete=models.CASCADE)
provenance = models.ForeignKey(Provenance, on_delete=models.CASCADE)
collection = models.ForeignKey(Collection, on_delete=models.CASCADE)
In the Vase model add this:
def artist_name(self):
return self.artist.artistName
Hence, it will look like:
class Vase(models.Model):
vaseID = models.CharField(max_length=10)
vaseRef = models.CharField(max_length=255,blank=True,null=True)
inscription = models.CharField(max_length=255,blank=True,null=True)
fabric = models.CharField(max_length=100, blank=True,null=True)
subject = models.CharField(max_length=255,blank=True,null=True)
technique = models.CharField(max_length=100,blank=True,null=True)
height = models.FloatField(max_length=100,blank=True,null=True)
diameter = models.FloatField(max_length=100,blank=True,null=True)
shape = models.ForeignKey(Shape, on_delete=models.CASCADE)
artist = models.ForeignKey(Artist, on_delete=models.CASCADE)
provenance = models.ForeignKey(Provenance, on_delete=models.CASCADE)
collection = models.ForeignKey(Collection, on_delete=models.CASCADE)
def artist_name(self):
return self.artist.artistName
In the VaseSerializer add the 'artist_name' to the fields Meta.
If you want to add this custom fields to all Vase Model fields, refer to this topic Django Rest framework, how to include '__all__' fields and a related field in ModelSerializer ?
class VaseSerializer(serializers.ModelSerializer):
class Meta:
model = models.Vase
fields = '__all__'
extra_fields = ['artist_name']
def get_field_names(self, declared_fields, info):
expanded_fields = super(VaseSerializer, self).get_field_names(
declared_fields, info)
if getattr(self.Meta, 'extra_fields', None):
return expanded_fields + self.Meta.extra_fields
else:
return expanded_fields
Below should your view:
class FilterVases(generics.ListAPIView):
serializer_class = VaseSerializer
def get_queryset(self):
queryset = Vase.objects.all()
query_artist = self.request.query_params.get('artist_name')
if query_artist is not None:
try:
artist = Artist.objects.get(artistName=query_artist)
queryset = queryset.filter(artist=artist)
except:
pass
vaseID = self.request.query_params.get('vaseID')
if vaseID is not None:
queryset = queryset.filter(vaseID=vaseID)
return queryset

'Account' object has no attribute 'products' AND (fields.E301) Field defines a relation with the model 'auth.User', which has been swapped out.'

I am following Django rest_framework tutorial to build my app but and I'm using a custom user model (Account) which inherits AbstractBaseUser.
I have another model - Product - and each product is owned by an Account.
My models.py is:
from django.db import models
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager
from django.conf import settings
class Product(models.Model):
owner = models.ForeignKey(Account, related_name='account', on_delete=models.CASCADE, default=1)
name = models.CharField(max_length=71)
product = models.CharField(max_length=20, blank=True)
price = models.IntegerField(null=True, blank=True)
quantity = models.IntegerField(default=0)
image = models.ImageField(upload_to='images', blank=True)
display = models.BooleanField(default=False)
created = models.DateTimeField('date added', auto_now=True)
modified = models.DateTimeField('date modified', auto_now_add=True)
def __str__(self):
return self.name
class MyAccountManager(BaseUserManager):
def create_user(self, email, username, password=None):
if not email:
raise ValueError("Please enter a valid email address")
if not username:
raise ValueError("Please enter a username")
user = self.model(
email = self.normalize_email(email),
username = username,
)
user.set_password(password)
user.save(using=self._db)
return user
def create_superuser(self, email, username, password):
user = self.create_user(
email = self.normalize_email(email),
password = password,
username = username,
)
user.is_admin = True
user.is_staff = True
user.is_superuser = True
user.save(using=self._db)
return user
class Account(AbstractBaseUser):
email = models.EmailField(verbose_name='email', max_length=60, unique=True)
username = models.CharField(max_length=30, unique=True)
date_joined = models.DateTimeField(verbose_name='date joined', auto_now_add=True)
last_login = models.DateTimeField(verbose_name='last_login', auto_now_add=True)
is_admin = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
is_staff = models.BooleanField(default=False)
is_superuser = models.BooleanField(default=False)
is_merchant = models.BooleanField(default=False)
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['username']
objects = MyAccountManager()
def __str__(self):
return self.email
def has_perm(self, perm, obj=None):
return self.is_admin
def has_module_perms(self, app_label):
return True
My settings.py includes:
AUTH_USER_MODEL = 'accounts.Account'
My serializers.py is:
from rest_framework import serializers
from inventory.models import Product
from accounts.models import Account
class AccountSerializer(serializers.ModelSerializer):
products = serializers.PrimaryKeyRelatedField(many=True, queryset=Product.objects.all())
password2 = serializers.CharField(style={'input_type': 'password'}, write_only=True)
class Meta:
model = Account
fields = ['products', 'email', 'username', 'password', 'password2']
extra_kwargs = {
'password': {'write_only': True}
}
def save(self):
account = Account(
email = self.validated_data['email'],
username = self.validated_data['username'],
)
password = self.validated_data['password']
password2 = self.validated_data['password2']
if password != password2:
raise serializers.ValidationError({'password': 'Passwordss must match.'})
account.set_password(password)
account.save()
return account
class ProductSerializer(serializers.ModelSerializer):
owner = serializers.ReadOnlyField(source='owner.email')
class Meta:
model = Product
fields = [
'id', 'owner', 'name', 'product', 'price', 'quantity', 'image', 'display'
]
My views.py is:
from accounts.api.serializers import AccountSerializer
from inventory.api.serializers import ProductSerializer
from inventory.models import Product
from accounts.models import Account
from rest_framework import permissions
from rest_framework import generics
class AccountList(generics.ListAPIView):
queryset = Account.objects.all()
serializer_class = AccountSerializer
class AccountDetail(generics.RetrieveAPIView):
queryset = Account.objects.all()
serializer_class = AccountSerializer
class ProductList(generics.ListCreateAPIView):
permission_classes = [permissions.IsAuthenticatedOrReadOnly]
queryset = Product.objects.all()
serializer_class = ProductSerializer
def perform_create(self, serializer):
serializer.save(owner=self.request.user)
class ProductDetail(generics.RetrieveUpdateDestroyAPIView):
permission_classes = [permissions.IsAuthenticatedOrReadOnly]
queryset = Product.objects.all()
serializer_class = ProductSerializer
I am able to view my ProductList and ProductDetail however, I get the following error when I try to view AccountList and AccountDetail:
**Exception Type:** AttributeError
**Exception Value:** 'Account' object has no attribute 'products'
Just change your serailzier like this
class AccountSerializer(serializers.ModelSerializer):
products = serializers.SerializerMethodField()
password2 = serializers.CharField(style={'input_type': 'password'}, write_only=True)
def get_products(self, instance):
return Product.objects.all().values_list('id', flat=True)
class Meta:
model = Account
fields = ['products', 'email', 'username', 'password', 'password2']
extra_kwargs = {
'password': {'write_only': True}
}
def save(self):
account = Account(
email = self.validated_data['email'],
username = self.validated_data['username'],
)
password = self.validated_data['password']
password2 = self.validated_data['password2']
if password != password2:
raise serializers.ValidationError({'password': 'Passwordss must match.'})
account.set_password(password)
account.save()
return account
PrimaryKeyRelatedField may be used to represent the target of the relationship using its primary key. The queryset used for model instance lookups when validating the field input. Your field is read_only field. Your should use SerializerMethodField for this.

How to add custom user field (phone_number) in django default user table?

I need to add a custom field called phone_number to the default django user table
Everything work fine but the phone_number field and value does not save in Table Django User.
Here is my custom form code
class SignUpForm(UserCreationForm):
username = forms.EmailField(label="Email Address", max_length=254, help_text='Required a valid email address.')
phone_number = forms.CharField(max_length=30, help_text='Required.')
class Meta:
model = User
fields = ('first_name', 'last_name', 'username', 'phone_number', 'password1', 'password2')
Here is my view code for user registration
def signup(request):
if request.method == 'POST':
form = SignUpForm(request.POST)
if form.is_valid():
user = form.save(commit=False)
user.is_active = False
user.save()
current_site = get_current_site(request)
mail_subject = 'Activate Your Account.'
message = render_to_string('app/account_activation_email.html', {
'user': user,
'domain': current_site.domain,
'uid': urlsafe_base64_encode(force_bytes(user.pk)).decode(),
'token': account_activation_token.make_token(user),
})
to_email = form.cleaned_data.get('username')
email = EmailMessage(
mail_subject, message, to=[to_email]
)
email.send()
return render(request, 'app/account_confirm_message.html')
else:
form = SignUpForm()
return render(request, 'app/signup.html', {'form': form})
My Model is here
class Profile(models.Model):
STUDENT = 1
TEACHER = 2
ROLE_CHOICES = (
(STUDENT, 'Student'),
(TEACHER, 'Teacher'),
)
user = models.OneToOneField(User, on_delete=models.CASCADE)
email_confirmed = models.BooleanField(default=False)
role = models.PositiveSmallIntegerField(choices=ROLE_CHOICES, null=True, blank=True)
# this method called for admin panel
class Meta:
verbose_name = 'profile'
verbose_name_plural = 'profiles'
def __str__(self):
return self.user.username
#receiver(post_save, sender=User)
def update_user_profile(sender, instance, created, **kwargs):
if created:
Profile.objects.create(user=instance)
instance.profile.save()

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