add basic email field in

armstrong/apps/donations/models.py

@@ -28,6 +28,7 @@ class Donor(models.Model):
             related_name="mailing_addresses", null=True, blank=True)
     # TODO: Make sure form widget is USPhoneNumberField
     phone = models.CharField(max_length=10, null=True, blank=True)
+    email = models.EmailField(null=True, blank=True)
 
     def save(self, **kwargs):
         if self.user:

armstrong/apps/donations/tests/forms.py

@@ -51,13 +51,19 @@ def test_saves_user_if_user_pk_is_submitted(self):
         self.assertEqual(user.pk, donation.donor.user.pk)
 
     def test_behaves_if_an_empty_user_pk_is_given(self):
-        user = self.random_user
         data = self.get_base_random_data()
         data["user_pk"] = ""
         form = forms.BaseDonationForm(data)
         donation = form.save()
         self.assertEqual(None, donation.donor.user)
 
+    def test_saves_email_if_submitted(self):
+        data = self.get_base_random_data()
+        data["email"] = "bob@example.com"
+        form = forms.BaseDonationForm(data)
+        donation = form.save()
+        self.assertEqual("bob@example.com", donation.donor.email)
+
     def test_saves_user_if_user_pk_is_submitted_on_prefixed_form(self):
         prefix = "prefix%d" % random.randint(100, 200)
         user = self.random_user