I am trying to insert data into db it throws below error,can any please fix this.
model.py from django.db import models # Create your models here. class Profile(models.Model): name = models.CharField(max_length=50, primary_key=True) assign = models.CharField(max_length=50) doj = models.DateField() class Meta: db_table= 'profile' def __unicode__(self): return u'%s' % (self.name) class working(models.Model): w_name =models.ForeignKey(Profile, db_column='w_name') monday = models.IntegerField(null=True, db_column='monday', blank=True) tuesday = models.IntegerField(null=True, db_column='tuesday', blank=True) wednesday = models.IntegerField(null=True, db_column='wednesday', blank=True) class Meta: db_table = 'working' def __unicode__(self): return u'%s ' % ( self.w_name) forms.py from models import * from django import forms class WorkingForm(forms.ModelForm): def __init__(self, *args, **kwargs): super(WorkingForm, self).__init__(*args, **kwargs) self.fields['w_name'] =forms.CharField(initial='x',widget=forms.HiddenInput()) class Meta: model = working exclude = ('id') view.py # Create your views here. from forms import * from django import http from django.shortcuts import render_to_response, get_object_or_404 def index(request): if request.method == "POST": form = WorkingForm(request.POST) if form.is_valid(): form.save() return http.HttpResponse('Added') else: form = WorkingForm() return render_to_response('add_workingdays.html',locals()) Error Message: ValueError at / Cannot assign "u'x'": "working.w_name" must be a "Profile" instance. Request Method: POST Request URL: http://127.0.0.1:8000/ Django Version: 1.2.4 Exception Type: ValueError Exception Value: Cannot assign "u'x'": "working.w_name" must be a "Profile" instance. Environment: Request Method: POST Request URL: http://127.0.0.1:8000/ Django Version: 1.2.4 Python Version: 2.6.5 Installed Applications: ['django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.messages', 'check'] Installed Middleware: ('django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware') Traceback: File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/core/handlers/base.py" in get_response 100. response = callback(request, *callback_args, **callback_kwargs) File "/home/xyz/newapp/../newapp/check/views.py" in index 10. if form.is_valid(): File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/forms/forms.py" in is_valid 121. return self.is_bound and not bool(self.errors) File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/forms/forms.py" in _get_errors 112. self.full_clean() File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/forms/forms.py" in full_clean 269. self._post_clean() File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/forms/models.py" in _post_clean 320. self.instance = construct_instance(self, self.instance, opts.fields, opts.exclude) File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/forms/models.py" in construct_instance 51. f.save_form_data(instance, cleaned_data[f.name]) File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/db/models/fields/__init__.py" in save_form_data 416. setattr(instance, self.name, data) File "/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg/django/db/models/fields/related.py" in __set__ 318. self.field.name, self.field.rel.to._meta.object_name)) Exception Type: ValueError at / Exception Value: Cannot assign "u'x'": "working.w_name" must be a "Profile" instance. I did a foreign key relation between two tables and i am trying to insert the data to working table it get Cannot assign "u'x'": "working.w_name" must be a "Profile" instance. if remove def *init*(self, *args, **kwargs): super(WorkingForm, self).*init*(*args, **kwargs) self.fields['w_name'] =forms.CharField(initial='x',widget=forms.HiddenInput()) it works normally,but i want to enter the username as hidden,but it throwing foreign key error -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.