CODEWITHSUNDEEP
djangodjango-formsdjango-class-based-views
melis
melis

Reputation: 1275

Can't update database with Django UpdateView

I am using UpdateView of Django (1.5.8) to update an object in my database. I edit the question object and hit submit; it doesn't give me any errors but it doesn't update the question either.

I have my QuestionUpdate class in views.py which extends to UpdateView:

class QuestionUpdate(UpdateView):  
    model = Question
    form_class = QuestionForm
    success_url = '.'

    def get_context_data(self, **kwargs):
        context = super(QuestionUpdate, self).get_context_data(**kwargs)
        return context

I call QuestionUpdate in urls.py with this:

url(r'^question/(?P<pk>\d+)/$',QuestionUpdate.as_view(), name='question_update', ),

In the template, I use Bootstrap form-group. I display a text area with a default value which is the original question. Here is my template (I copy only the related part-the form):

        <form action = "" method ="post"> {% csrf_token %}

        <div class='form-group'>
                <label>Question</label>
                <textarea class='form-control' rows="3">{{question}}</textarea>
            </div>

            <input type = 'submit' value = 'Submit' />

        </form>

I found this, but it doesn't help me so much. What am i missing?

There are two things I suspect:

  1. I pass the pk to the url when I display the questions with updateview. I saw couple UpdateView examples using reverse() on the url. I don't know if I need it or why I need it. That might be the problem?

  2. In my form, I display only the question_text, but there are other fields in the Question model. Am I having trouble because of the 'hidden fields'?

EDIT: Here are the Question model and QuestionForm model form:

models.py:

class Question(models.Model):
    question_text = models.TextField()
    question_type = models.CharField(choices = Option_type, max_length = 64)
    calculate = models.CharField(choices=Calculation, blank = True, max_length = 64)
    ordering = models.IntegerField()
    scale_id = models.IntegerField()
    scale = models.ForeignKey(Scale)
    max_score_of_question = models.IntegerField()
    showQues = models.IntegerField(default = 1)


    def __unicode__(self):
        return self.question_text

forms.py

class QuestionForm(ModelForm):
    class Meta:
        model = Question
#         fields = ('question_text',)

Upvotes: 1

Views: 1212

Answers (1)

yedpodtrzitko
yedpodtrzitko

Reputation: 9359

The problem is that you've columns scale_id and scale. See - if there's a ForeignKey, it generates also a property named as the column + a suffix _id, in this case scale_id collides with the column scale_id which is already there.

Just rename or remove one of them.

Upvotes: 1

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