def write(request):
"""View to use as the guestbook writing page.
Presents a form to write an entry into the guestbook. Upon submitting, the
form values are validated and saved to the database, representing a
digital signature.
If form validation fails, the form is shown again along with an error
message.
A Django HTTP Request object must be passed. An HTTP Response is returned.
"""
guestbook_error = None
if request.method == 'POST':
try:
new_entry = Entry(
ip=request.META['REMOTE_ADDR'],
namefirst=request.POST['namefirst'],
namelast=request.POST['namelast'],
comment=request.POST['comment']
)
new_entry.full_clean()
new_entry.save(force_insert=True)
except ValidationError as e:
guestbook_error = '<br /><br />'.join(e.messages)
else:
return redirect(reverse('guestbook:index'))
context = {'guestbook_error': guestbook_error}
return render(request, 'guestbook/write.html', context)
