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django: How to use inlineformset within the formwizard?

开发者 https://www.devze.com 2023-03-13 01:23 出处:网络
I\'m displaying two separate sample projects. The first is a Contact related and shows the principle of using the formwizard. The second is an ingredients to recipes related project which shows how to

I'm displaying two separate sample projects. The first is a Contact related and shows the principle of using the formwizard. The second is an ingredients to recipes related project which shows how to use inlines within a form. I want inlines to be in my formwizard the same way they work in a normal form.

I have a formwizard multistep form working. It is based off the example here. I've changed it slightly to use modelform.

models.py

from django.db import models

# Create your models here.
class Contact(models.Model):
    subject = models.CharField(max_length=50)
    sender = models.EmailField()

    def __unicode__(self):
        return self.subject

class Contact2(models.Model):
    message = models.TextField(max_length=500)

    def __unicode__(self):
        return self.message

forms.py

class ContactForm1(forms.ModelForm):
    class Meta:
        model = Contact

class ContactForm2(forms.ModelForm):
    class Meta:
        model = Contact2

class ContactWizard(FormWizard):
    @property
    def __name__(self):
        return self.__class__.__name__

    def done(self, request, form_list):
#        do_something_with_the_form_data(form_list)
        return HttpResponseRedirect('/done/')

urls.py

(r'^contact/$', ContactWizard([ContactForm1, ContactForm2])),

Separately I have inlines being generated into another form. I'm doing this via inlineformset_factory in my view. This is not connected to the formwizard example above. This is an ingredients to recipes example. I'm doing this like:

views.py

def add(request):
    IngredientFormSet = inlineformset_factory(Recipe, Ingredient, 
                fk_name="recipe", 
                formfield_callback=curry(ingredient_form_callback, None))

    if request.method == 'POST':
        form = RecipeForm(request.POST)
        formset = IngredientFormSet(request.POST)
        if form.is_valid() and formset.is_valid():
            recipe = form.save()
            formset = IngredientFormSet(request.POST, instance=recipe)            
            formset.save()
            return redirect("/edit/%s" % recipe.id)
    else:
        form = RecipeForm()
        formset = IngredientFormSet()

    return render_to_response("recipes_add.html", {"form":form, "formsets":formset}, context_instance=RequestContext(request))

recipes_add.html

<form method="post">
{% csrf_token %}
    <table>
    {{ form }}
    </table>
    <hr>
    <h3>Ingredients</h3>
    <div class="inline-group">
      <div class="tabular inline-related last-related">
          {{ formsets.management_form }}
          {% for formset in formsets.forms %}
          <table>
              {{ formset }}
          </table>
          {% endfor %}
      </div>
    </div>
    <p class="success tools"><a href="#" class="add">Add another row</a></p>
    <input type="submit" value="Add">
</form>

How can I get the inlines to work within my formwizard multistep form? The models.py now looks like this because I want books to be inlines to contact. I want the inlines to be on the first step of my formwizard. Then go through to step 2 and finish.

from django.db import models

# Create your model开发者_JS百科s here.
class Contact(models.Model):
    subject = models.CharField(max_length=50)
    sender = models.EmailField()

    def __unicode__(self):
        return self.subject

class Contact2(models.Model):
    message = models.TextField(max_length=500)

    def __unicode__(self):
        return self.message

class Book(models.Model):
   author = models.ForeignKey(Contact)
   title = models.CharField(max_length=100)


The formwizard included in Django (below version 1.4) doesn't support formsets. Beginning with version 1.4, there will be a much better implementation (see https://docs.djangoproject.com/en/dev/ref/contrib/formtools/form-wizard/)

Back to your question, if you can't wait for the next Django release - which I assume - you could stick to django-formwizard. The last release (1.0) is api compatible to the upcoming Django formwizard.

With the new formwizard implementation you can use FormSets the same way you use normal Forms.

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