In my django project i have a model.py with a class like this:
class temp_main(models.Model):
descr = models.CharField(max_length=200, verbose_name="Description")
notes = models.TextField(null=True, blank=True, verbose_name="Note")
dt = models.DateTimeField(auto_now=True)
#Fields for API permissions
owner = models.ForeignKey('auth.User', related_name='tmain_owner', on_delete=models.CASCADE, verbose_name="API Owner")
class Meta:
verbose_name = '1-Main Template'
verbose_name_plural = '1-Main Templates'
def __str__(self):
return self.descr
i would that in my admin panel the owner field was auto-populated with the current login user.
In my admin.py i write:
admin.site.register(temp_main, )
How can i set my owner field with logged in user?
Thanks in advance
I think what you need is the save_model method. Here's how it is used (from the documentation):
from django.contrib import admin
from myproject.myapp.models import Article
class ArticleAdmin(admin.ModelAdmin):
def save_model(self, request, obj, form, change):
obj.user = request.user
super().save_model(request, obj, form, change)
admin.site.register(Article, ArticleAdmin)
I think you could change obj.user to obj.owner in your case. Does that work?
Also, I think you would want to change the name of the temp_main class to TempMain and then name the class in the admin.py file TempMainAdmin. Django will use this naming scheme to know which Admin Model goes with which model.
Related
So I am building a to do app in Django. I have created databases for the users and todo items. But I have a problem, how can each user have its own data. Like every user should add their own data. It seems like there is no answer out there.
My models.py
class Task(models.Model):
title = models.CharField(max_length=200)
complete = models.BooleanField(default=False)
created = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.title
My forms.py
class CreateUserForm(UserCreationForm):
class Meta:
model = User
fields = ['username','email','password1','password2']
So how can I connect those both. I have red that I have to use foreign key. But I really don't understand how I can do it
You specify a ForeignKey [Django-doc] in the Task model that refers to the user that constructed it:
# app/models.py
from django.db import models
from django.conf import settings
class Task(models.Model):
title = models.CharField(max_length=200)
complete = models.BooleanField(default=False)
created = models.DateTimeField(auto_now_add=True)
user = models.ForeignKey(
settings.AUTH_USER_MODEL,
on_delete=models.CASCADE
)
def __str__(self):
return self.title
You can then make a ModelForm where you exclude the user. For example:
# app/forms.py
from django import forms
from app.models import Task
class TaskForm(forms.ModelForm):
class Meta:
model = Task
exclude = ['user']
Then in the view we can "inject" the user in the instance we create, for example:
# app/views.py
from django.contrib.auth.decorators import login_required
from django.shortcuts import redirect
from app.forms import TaskForm
#login_required
def create_task(request):
if request.method == 'POST':
form = TaskForm(request.POST, request.FILES)
if form.is_valid():
form.instance.user = request.user
form.save()
return redirect('name-of-some-view')
else:
form = TaskForm()
return render(request, 'some_template.html', {'form': form})
Note: In case of a successful POST request, you should make a redirect
[Django-doc]
to implement the Post/Redirect/Get pattern [wiki].
This avoids that you make the same POST request when the user refreshes the
browser.
I'm learning django and I made the tutorial on django site. I thought that I could link user to poll that he created but I'm struggling with it. When I'm logged in and creating a poll I can't see user name. In database column author_id has value null. I would appreciate every help.
Here is my code
from django.db import models
from django.utils import timezone
import datetime
from django.contrib import auth
# Create your models here.
User = auth.get_user_model()
class Question(models.Model):
question_text = models.CharField(max_length=200)
author = models.ForeignKey(User, on_delete=models.CASCADE, null=False)
def __str__(self):
return self.question_text
class Choice(models.Model):
question = models.ForeignKey(Question, on_delete=models.CASCADE)
choice_text = models.CharField(max_length=200)
votes = models.IntegerField(default=0)
def __str__(self):
return self.choice_text
class User(auth.models.User, auth.models.PermissionsMixin):
def __str__(self):
return "#{}".format(self.username)
forms.py:
class UserCreateForm(UserCreationForm):
class Meta:
fields = ('username', 'email', 'password1', 'password2')
model = get_user_model()
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['username'].label = 'Display Name'
self.fields['email'].label = 'Email Address'
class CreatePollForm(forms.ModelForm):
class Meta:
model = Question
fields = ('question_text',)
and views.py
class CreatePoll(LoginRequiredMixin, generic.CreateView):
form_class = forms.CreatePollForm
success_url = reverse_lazy('pollapp:index')
template_name = 'polls/createPoll.html'
Since your CreatePollForm only assigns the question_text field, you need to assign the author in code. A CreateView is a FormView which does the saving of the form in its form_valid() method. So in your CreateView, you want to override that method:
# in class CreatePoll
def form_valid(self, form):
question = form.save(commit=False) # fetch the new question, don't save
question.author = self.request.user # assign the user
question.save() # now save
return super().form_valid(form)
It isn't clear how you could end up with a null value for the author_id, that should have raised an IntegrityError. Are you sure you ran makemigrations and migrate in the current state?
I'm kinda new to django, I need to set a dynamic initial value to my modelform field. I have a database field in my model name 'author' it has a foreignkey that connects it to the django user model. I need to automatically set this to the current user anytime a user fills in information into the form.
from what I gathered about this problem, I'd have to define an __init__ function inside the MyHouseEditForm below, I'm new to django and all the examples I've seen a pretty confusing.
forms.py
from django import forms
from django.contrib.auth.models import User
from .models import Myhouses
class MyHouseEditForm(forms.ModelForm):
class Meta:
model = Myhouses
fields = ('author','name_of_accomodation', 'type_of_room', 'house_rent', 'availability', 'location', 'nearest_institution', 'description', 'image')
i need to set the value of 'author' to the current user anytime a user logs in.
models.py
from django.db import models
from django.contrib.auth.models import User
class Myhouses(models.Model):
author = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True, related_name='author')
Available = 'A'
Not_Available = 'NA'
Availability = (
(Available, 'Available'),
(Not_Available, 'Not_Available'),
)
name_of_accomodation = models.CharField(max_length=200)
type_of_room = models.CharField(max_length=200)
house_rent = models.IntegerField(null=True)
availability = models.CharField(max_length=2, choices=Availability, default=Available,)
location = models.CharField(max_length=200)
nearest_institution = models.CharField(max_length=200)
description = models.TextField(blank=True)
image = models.ImageField(upload_to='profile_image')
def __str__(self):
return self.name_of_accomodation
views.py
#login_required
def addlisting(request):
if request.method == 'POST':
form = MyHouseEditForm(request.POST, files=request.FILES)
if form.is_valid():
Houses = form.save(commit=False)
Houses.save()
return redirect('addlisting')
else:
form = MyHouseEditForm()
return render(request, 'houses/addlisting.html', {'form':form })
No need to show author field in form. It would automatically populate with logged in user.
request.user gives you logged in user object. So, you may remove 'author' filed from forms field section and do this:
Houses = form.save(commit=False)
Houses.author = request.user
Houses.save()
I did something like this in the serializer.
I defined a custom create method like this:
class MyhousesSerializer(FlexFieldsModelSerializer):
...
def create(self, validated_data):
validated_data['author'] = self.context['request'].user
newhouse = Myhouses.objects.create(**validated_data)
return newhouse
It shouldn't matter if you use a more regular model serializer.
When I submit a new team as a authenticated user, I get this error is showing. I searched a lot of answers but they say do it null=True or default=1 but I don't want to be it null or something I want to be user's id it. Plus I imported and tried settings.AUTH_USER_MODEL and get_user_model
from django.contrib.auth.models import User
#models.py
class Team(models.Model):
creator = models.ForeignKey(User, related_name='teams', on_delete=models.CASCADE)
name = models.CharField(max_length=20, unique=True)
rank = models.IntegerField(default=0)
#views.py
class TeamsCreateView(generic.CreateView):
model = Team
form_class = TeamCreationForm
#forms.py
class TeamCreationForm(forms.ModelForm):
class Meta:
model = Team
fields = ('name',)
Override the form_valid method, and set user on the form's instance before saving it.
from django.contrib.auth.mixins import LoginRequiredMixin
class TeamsCreateView(LoginRequiredMixin, generic.CreateView):
model = Team
form_class = TeamCreationForm
def form_valid(self, form):
form.user = self.request.user
return super(TeamsCreateView, self).form_valid(form)
Use LoginRequiredMixin to make sure that users can only access the view if they are logged in.
I am trying to set up a basic blog with a custom auth model. I am trying to get a simple form to work but somehow I am not able to make it work. I am not sure what is causing the error. This is a fresh app and a fresh project I am working on.
I tried to reference from the docs but I am not sure what I am doing incorrect. How can i fix this error? Thanks in advance
Docs: https://docs.djangoproject.com/en/1.11/topics/auth/customizing/#changing-to-a-custom-user-model-mid-project
Similar questions: Cannot create form field for 'created_by' yet, because its related model 'users.User' has not been loaded yet
My Current Code
models.py
class User(AbstractUser):
pass
class Post(models.Model):
author = models.ForeignKey('settings.AUTH_USER_MODEL')
title = models.CharField(max_length=200)
text = models.TextField()
created_date = models.DateTimeField(default=timezone.now)
published_date = models.DateTimeField(blank=True, null=True)
forms.py:
from blog.models import User
class PostForm(forms.ModelForm):
image = forms.CharField(
widget=forms.FileInput(attrs={'class': 'form-control'}),required=False)
class Meta():
model = Post
fields = ('author','title', 'text','image')
widgets = {
'title': forms.TextInput(attrs={'class': 'textinputclass'}),
}
views.py
from blog.forms import PostForm, CommentForm
class CreatePostView(LoginRequiredMixin,CreateView):
...
form_class = PostForm
model = Post
def form_valid(self,form):
if self.request.POST:
post = form.save()
return HttpResponseRedirect('/')
settings.py:
AUTH_USER_MODEL = 'blog.User'
admin.py:
from .models import User
from django.contrib.auth.admin import UserAdmin
admin.site.register(User,UserAdmin)
You should use settings.AUTH_USER_MODEL, not the string 'settings.AUTH_USER_MODEL':
class Post(models.Model):
author = models.ForeignKey(settings.AUTH_USER_MODEL)