failing the captcha no longer returns a 500

webpage/forms.py

@@ -1,3 +1,4 @@
+from re import Pattern
 from django import forms
 from django.core.exceptions import ValidationError
 from django.utils.translation import gettext_lazy as txt
@@ -11,5 +12,5 @@ class SignbookForm(forms.Form):
 
     def validate_capcha(self):
       if self.cleaned_data["capcha"].lower() != "i love me":
-        raise ValidationError(txt('Invalid captcha'))
+        raise ValidationError(txt('Invalid captcha'), code="invalid")
       return self

webpage/views.py

@@ -1,3 +1,4 @@
+from django.forms import ValidationError
 from django.http import HttpResponseNotFound, HttpResponseRedirect
 from django.shortcuts import render
 import os, random
@@ -47,6 +48,7 @@ def signbook(request):
     signer_list = Booksigner.objects.all()
     if request.method == 'POST':
         form = SignbookForm(request.POST)
+        try:
             if form.is_valid() and form.validate_capcha():
                 newsigner = {}
                 newsigner["name"] = form.cleaned_data['name']
@@ -87,6 +89,18 @@ def signbook(request):
                 "signbook.html",
                 context
             )
+        except ValidationError as e:
+            print("Error: ", e)
+            context = {
+                "title": "THE GUESTBOOK",
+                "signer_list": signer_list,
+                "error_message": "Invalid captcha.",
+            }
+            return render(
+                request,
+                "signbook.html",
+                context
+            )
     else:
         context = {
             "title": "THE GUESTBOOK",