from django.forms import ModelForm
from django import forms
from models import Contacts

class ContactForm(forms.Form):
    class Meta:
        model = Contacts

    name = forms.CharField(max_length=30)
    email = forms.EmailField(max_length=254)
    message = forms.CharField(
        max_length=2000,
        widget=forms.Textarea(),
        help_text='Write here your message!'
    )

    def clean(self):
        cleaned_data = super(ContactForm, self).clean()
        name = cleaned_data.get('name')
        email = cleaned_data.get('email')
        message = cleaned_data.get('message')
        if not name and not email and not message:
            raise forms.ValidationError('You have to write something!')

def addcontact(request):
    if request.POST:
        form_c = ContactForm(request.POST)
        if form_c.is_valid():
            f.save() # не работает т.к. у ContactForm нет этого метода
            return HttpResponseRedirect('/contacts/thanks/')
    else:
        form_c = ContactForm()
    return render(request, 'contacts.html', {'form_c': form_c})