11.2. Forms Form

• https://www.youtube.com/watch?v=3XOS_UpJirU

from django import forms
from django.views.generic import FormView, TemplateView


class ContactForm(forms.Form):
    sender = forms.EmailField(label='Your Email Address')
    category = forms.ChoiceField(choices=[('question', 'Question'), ('other', 'Other')])
    subject = forms.CharField(required=False)
    body = forms.CharField(widget=forms.Textarea)


class ContactView(FormView):
    template_name = 'shop/contact-form.html'
    form_class = ContactUsForm
    success_url = '/shop/contact/thankyou'


class ThankYouView(TemplateView):
    template_name = 'shop/contact-thankyou.html'

forms.py:

from django import forms


class ContactForm(forms.Form):
    subject = forms.CharField(max_length=100)
    message = forms.CharField(widget=forms.Textarea)
    sender = forms.EmailField()
    cc_myself = forms.BooleanField(required=False)

    def clean_sender(self):
        data = self.cleaned_data['sender']

        if "mark.watney@nasa.gov" not in data:
            raise forms.ValidationError("You have forgotten about Watney!")

        # Always return a value to use as the new cleaned data, even if
        # this method didn't change it.
        return data

views.py:

from django.http import HttpResponseRedirect
from django.shortcuts import render

from .forms import NameForm

def get_name(request):
    # if this is a POST request we need to process the form data
    if request.method == 'POST':
        # create a form instance and populate it with data from the request:
        form = NameForm(request.POST)
        # check whether it's valid:
        if form.is_valid():
            # process the data in form.cleaned_data as required
            # ...
            # redirect to a new URL:
            return HttpResponseRedirect('/thanks/')

    # if a GET (or any other method) we'll create a blank form
    else:
        form = NameForm()

    return render(request, 'name.html', {'form': form})

form.html:

<form action="/your-name/" method="post">
    {% csrf_token %}
    {{ form }}
    <input type="submit" value="Submit">
</form>

• {{ form.as_table }} will render them as table cells wrapped in <tr> tags

• {{ form.as_p }} will render them wrapped in <p> tags

• {{ form.as_ul }} will render them wrapped in <li> tags