Hello, Because your implementation is wrong.
Please read this https://tech.serhatteker.com/post/2020-01/uuid-primary-key/ Jason <[email protected]> schrieb am So., 6. Feb. 2022, 00:27: > A bit of a hint about your db schema, do you want a user ID to be one to > one with each book plot? also, why is your primary key a string field? > On Saturday, February 5, 2022 at 10:43:05 AM UTC-5 [email protected] > wrote: > >> Hello everyone, >> >> when i am trying to add uuid primary key , I am getting this error UNIQUE >> constraint failed: matrixapp_bookplot.user_id >> >> what is wrong here >> >> class BookPlot(models.Model): >> >> ref_id = models.CharField(max_length=25) >> code = str(uuid.uuid4()).replace("-", "")[:4] >> user_id=models.CharField(primary_key=True,max_length=50, >> default=code, editable=False) >> plot_number = models.CharField(max_length=25) >> Payable_amout = models.IntegerField(null=True, blank=True) >> Mnthly_Installment = models.IntegerField(null=True, blank=True) >> number_of_Installment = models.IntegerField() >> name = models.CharField(max_length=100) >> father_name = models.CharField(max_length=100) >> mobile_no = models.IntegerField() >> payment_mode = models.CharField(max_length=10) >> remarks = models.CharField(max_length=100) >> receipt = models.ImageField(upload_to = 'receipt/', null= True, >> blank=True) >> >> joinig_date=models.DateField(auto_now_add=True,null=True,blank=True) >> >> >> >> >> def bookplot(request): >> >> >> if request.method =="POST": >> ref_id = request.POST.get('ref_id') >> >> plot_number = request.POST.get('plot_number') >> amount = request.POST.get('amount') >> Mnthly_Installment = request.POST.get('Mnthly_installment') >> no_Installment = request.POST.get('no_Installment') >> name = request.POST.get('name') >> father_name = request.POST.get('father_name') >> mobile_number = request.POST.get('mobile_number') >> payment_mode = request.POST.get('payment_mode') >> remarks = request.POST.get('remarks') >> receipt = request.FILES.get('receipt') >> print(ref_id) >> book_plot = BookPlot(ref_id= ref_id,plot_number = >> plot_number, Payable_amout = amount,Mnthly_Installment = >> Mnthly_Installment, number_of_Installment = no_Installment, name = >> name,father_name = father_name , mobile_no = mobile_number, payment_mode = >> payment_mode ,remarks=remarks,receipt=receipt ) >> book_plot.save() >> >> > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/8e0d1acf-a7c2-4a6b-9b04-001856d47071n%40googlegroups.com > <https://groups.google.com/d/msgid/django-users/8e0d1acf-a7c2-4a6b-9b04-001856d47071n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAKGT9my2cwrWhGOty3H6Vn%3Du7xQqFh242m8YHV_vZ7QV9gBsiA%40mail.gmail.com.
