Question

I’m really stuck with this. To show my problem I created a new Django project and started from scratch, focusing only on one single form.

What I’m trying to do is to create a form with several fields of the same name. I tried using modelformset_factory to achieve this but it looks to me like it’s not what I really need.

Below is my code (also on dpaste) which currently works fine with one single field called name. How can I create and process a form which would have several name fields? Could somebody point me in the right direction?

# models.py
class Category(models.Model):
    name = models.CharField(max_length=30, unique=True)
    user = models.ForeignKey(User, blank=True, null=True)

    class Meta:
        verbose_name_plural = "Ingredience Categories"

    def __unicode__(self):
        return self.name

# forms.py
class CategoryForm(ModelForm):
    class Meta:
        model = Category
        fields = ('name',)

# views.py
def home(request):
    if request.method == 'POST':
        catform = CategoryForm(request.POST)
        catformInstance = catform.save(commit = False)
        catformInstance.save()
        return HttpResponseRedirect('')
    else:
        catform = CategoryForm() 

    context = {'catform': catform}
    return render_to_response('home.html', context, context_instance=RequestContext(request))

# home.html template
<h3>Insert new Category</h3> 
<form action="/" method="post" id="ingr-cat-form">{% csrf_token %}
{{ catform.as_p }}
<input type="submit" name="ingrCatForm" value="Save" />
</form>

UPDATE: to clarify, I want to allow user to insert several categories within one form. I think I’m getting close, here is my new version of views.py but it still stores just one category (the last one in the list):

def home(request):
    if request.method == 'POST':
        catform = CategoryForm(request.POST)
        names = request.POST.getlist('name')
        catformInstance = catform.save(commit = False)
        for name in names:
            catformInstance.name = name
            catformInstance.save()
        return HttpResponseRedirect('')
    else:
        catform = CategoryForm() 

    context = {'catform': catform}
    return render_to_response('home.html', context, context_instance=RequestContext(request))

Answer 1

You cannot have fields with the same name (on the same Model). If you only need to change the html label in the html form, use

class Category(models.Model):
    name = models.CharField(max_length=30, unique=True)
    name2 = models.CharField(max_length=30, unique=True, verbose_name="name")
    user = models.ForeignKey(User, blank=True, null=True)

or

class CategoryForm(ModelForm):
    def __init__(self , *args, **kwargs):
        super(CategoryForm, self).__init__(*args, **kwargs)
        self.fields['name2'].label = "name"