Pass view arguments to Django form

Question

Hello, good night!

I’m doing a question and answer application on Jango and I have basically these models:

Multiple choice app:

class MCQuestao(Questao):

    def checar_correta(self, ans):
        answer = Alternativa.objects.get(id=ans)

        if answer.correta is True:
            return True
        else:
            return False

    def pegar_questoes(self):
        return Alternativa.objects.filter(questao=self)

    class Meta:
        verbose_name = 'Questão múltipla escolha'
        verbose_name_plural = 'Questões múltiplas escolhas'

class Alternativa(models.Model):
    questao = models.ForeignKey(MCQuestao, on_delete=models.CASCADE)
    resposta = models.TextField()
    fundteorico = models.TextField()
    correta = models.BooleanField(default=False)

    def __str__(self):
        return self.resposta

    class Meta:
        verbose_name = "Alternativa"
        verbose_name_plural = "Alternativas"

Question app:

class Situacao(models.Model):
    enunciado = models.TextField(max_length=2000, blank=True)
    certificado = models.ManyToManyField(Certificado)

    def __str__(self):
        return '{}...'.format(self.enunciado[:80])

    def get_resolucao(self):
        return self.resolucao

    class Meta:
        verbose_name = "Situação" 
        verbose_name_plural = "Situações"

class Resolucao(models.Model):
    resolucao = models.TextField(max_length=1000, blank=True)
    situacao = models.OneToOneField(Situacao, on_delete=models.CASCADE)

    def __str__(self):
        return self.resolucao

    class Meta:
        verbose_name = "Resolução"
        verbose_name_plural = "Situações"

class Questao(models.Model):
    subdominio = models.ManyToManyField(SubDominio)
    resolucao = models.ForeignKey(Resolucao, on_delete=models.CASCADE, default='')
    questao = models.TextField(max_length=1000, blank=True)

    def __str__(self):
        return self.questao

    objects = InheritanceManager()

    class Meta:
        verbose_name = "Questão"
        verbose_name_plural = "Questões"
        ordering = ['subdominio__name']

And in my view I basically pass an argument that I use to verify the question (an id) and from it I get the question, after I get the question I pass it as argument and pull the alternatives. I would like to pass this information to the form, so I can process the form, check if a question is correct, etc.

Question view code:

def pergunta(request, slug, id):

    certificacao = get_object_or_404(Certificacao, slug=slug)
    situacao = Situacao.objects.get(certificado__id=id)
    resolucao = Resolucao.objects.get(situacao=situacao)
    questao = Questao.objects.get(resolucao=resolucao)
    alternativa = Alternativa.objects.filter(questao=questao)

    if request.method == 'POST':
        form = QuestaoForm(request.POST)

        if form.is_valid():
            return HttpResponse('Parabéns! Acertou!')

    else:
        form = QuestaoForm()

    return render(request, 'certificacoes/pergunta.html', {'form': form})

I would like to show the information basically like this, then when clicking on the Ubmit I would check the boolean if the question was correct and such, but I’m days stuck in this and I have no idea how to solve. Thank you!

Answer 1

I did something similar, I about wrote the init form method. At the time of instantiating the form I pass the parameters I want to:

form = QualquerForm(request.POST,var1='ola mundo')

Now about writing the form method:

class QualquerForm(forms.Form):

    def __init__(self,*args, **kwargs):
        self.var1 = kwargs.get('var1',None)
        super(QualquerForm, self).__init__(*args, **kwargs) 

So I can access in any method the variable passed like this:

self.var1