I got this Error when I hit the submit from
'ManagementForm data is missing or has been tampered with']
class Course(models.Model):
course = models.CharField(max_length=30)
course_name = models.CharField(max_length=30)
class Student(models.Model):
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=30)
grade = models.CharField(max_length=2,
choices=YEAR_IN_SCHOOL_CHOICES
class ContestScore(models.Model):
student = models.ForeignKey(Student)
course = models.ForeignKey(Course)
score = models.FloatField()
def __unicode__(self):
return u"%s - %s - %s" % (self.student, self.course, self.score)
In the view
def grading_student(request, school_id=1, student_id=1):
student = Student.objects.get(pk=student_id)
ContestInlineFormSet = inlineformset_factory(Student, Score, extra =0)
if request.method == "POST":
formset = ContestInlineFormSet(request.POST, instance=student)
# Do something. Should generally end with a redirect. For
example:
return HttpResponseRedirect(reverse ('contest:gradings',
args=(school_id),))
else:
formset = ContestInlineFormSet(instance=student)
return render_to_response("grading_student_form.html",
RequestContext(request, { "formset": formset}))
the formset = ContestInlineFormSet(instance=student) render the page good.
But when I click submit to post data
the formset = ContestInlineFormSet(request.POST, instance=student) give me
the error
ManagementForm data is missing or has been tampered with']
Please help! What I am doing wrong here?
If the model has only one foreign key it work fine.
Thanks.
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