Re: null value in column violates not-null constraint

Man this solved my problem, I can't believe that is spend few hours not seeing this....
But now that I am able to create products with my current user, i have another problem:

When I login with admin while I am logged in with my current user, and then create product,
product is being added as by admin not as by current user as it should be.

otherwise when I am not logged in with admin(but only with current user) everything seems to work fine.
Can you help me maybe with this one?
Thanks.
On Thursday, May 25, 2017 at 11:19:11 PM UTC+2, Vijay Khemlani wrote:

"form.instance.user"

should be

"form.instance.seller"

But the "null value in column" error could also apply to any of the
non-nullable fields in your Product model that are not set by the time
you save the instance.

On 5/25/17, Ismail Sarenkapic <ismai...@gmail.com> wrote:
> Tnx.
> The slug is not important here.
> The main question is how do I add product  with current user!
>
> On Thursday, May 25, 2017 at 8:00:08 PM UTC+2, Muhammad wrote:
>>
>> Ismail,
>>
>> You don't seem to be handling the value for Product.slug anywhere, either
>>
>> in the model or the view.
>>
>> You can fix the slug issue by overriding the Product model's save ()
>> method like this:
>>
>> def save (self, *args, **kwargs):
>>      if not self.slug:
>>         self.slug = slugify(self.title)
>>     super(Product, self).save (*args, **kwargs)
>>
>> This way, you can automatically generate the value of the slug field when
>>
>> a valid form is submitted.
>>
>> If you are still having problems, please, do let us know.
>>
>> All the best.
>>
>> Sincerely,
>> Muhammad
>>
>> On May 25, 2017 7:20 AM, "Ismail Sarenkapic" <ismai...@gmail.com
>> <javascript:>> wrote:
>>
>> Hi, I'm trying to create a digital marketplace site where users will be
>> able to register and submit their products.
>> I created the Product model and connected it with User with foreign
>> key.Everything seems  to be alright, but when I submit my product i get
>> the
>> following error:
>>
>> null value in column violates not-null constraint
>>  it looks like relation between product and user is not properly
>> configured(regardless of my mixin that is suppose to handle it)
>>
>> __________________________________________________________________________________________________________________________________
>> note that I'm using:
>>
>> database:postgresql
>>
>> allauth(for user registration)
>>
>> __________________________________________________________________________________________________________________________________
>>
>> ________
>> models.py
>>
>> from django.conf import settings
>> from django.db import models
>> from django.db.models.signals import pre_save, post_save
>> from django.core.urlresolvers import reverse
>> from django.utils.text import slugify
>> # Create your models here.
>>
>>
>>
>> class Product(models.Model):
>>    seller = models.ForeignKey(settings.AUTH_USER_MODEL)
>>    #user = models.OneToOneField(settings.AUTH_USER_MODEL)
>>    # user = models.ForeignKey(settings.AUTH_USER_MODEL)
>>    # managers = models.ManyToManyField(settings.AUTH_USER_MODEL,
>> related_name="managers_products", blank=True)
>>    title = models.CharField(max_length=30)
>> #owiuerpoajsdlfkjasd;flkiu1p3o4u134123 ewjfa;sd
>>    slug = models.SlugField(blank=True, unique=True)
>>    description = models.TextField()
>>    price = models.DecimalField(max_digits=100, decimal_places=2,
>> default=9.99, null=True,) #100.00
>>
>>
>>    def __unicode__(self): #def __unicode__(self):
>>       return self.title
>>
>> _______
>> views.py
>>
>>
>> from django.views import View
>> from django.views.generic import (
>>                 CreateView,
>>                 )
>>
>> from .forms import ProductModelForm
>> from .mixins import FormUserNeededMixin
>> # Create your views here.
>>
>>
>> class ProductCreateView(FormUserNeededMixin, CreateView):
>>     form_class = ProductModelForm
>>     template_name = 'create_view.html'
>>
>> _______
>> forms.py
>>
>> from django import forms
>>
>> from django.utils.text import slugify
>>
>> from .models import Product
>>
>>
>> class ProductModelForm(forms.ModelForm):
>>    class Meta:
>>       model = Product
>>       fields = [
>>          "title",
>>          "description",
>>          "price",
>>       ]
>>
>> ________
>> mixins.py
>>
>> from django import forms
>> from django.forms.utils import ErrorList
>>
>> class FormUserNeededMixin(object):
>>
>>      def form_valid(self, form):
>>         if self.request.user.is_authenticated():
>>             form.instance.user = self.request.user
>>             return super(FormUserNeededMixin, self).form_valid(form)
>>         else:
>>             form._errors[forms.forms.NON_FIELD_ERRORS] = ErrorList(["User
>> must be logged in to continue."])
>>             return self.form_invalid(form)
>>
>>
>>
>>
>>
>>
>>
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