[SOL-2173] Add Backend Validation for End Datetime and Start Datetime

ecommerce/coupons/tests/mixins.py

@@ -186,13 +186,13 @@ class CouponMixin(object):
             code=code,
             course_seat_types=course_seat_types,
             email_domains=email_domains,
-            end_datetime=datetime.date(2020, 1, 1),
+            end_datetime=datetime.datetime(2020, 1, 1),
             max_uses=max_uses,
             note=note,
             partner=partner,
             price=price,
             quantity=quantity,
-            start_datetime=datetime.date(2015, 1, 1),
+            start_datetime=datetime.datetime(2015, 1, 1),
             title=title,
             voucher_type=voucher_type
         )

ecommerce/extensions/api/v2/views/coupons.py

@@ -2,7 +2,6 @@ from __future__ import unicode_literals
 
 import logging
 
-import dateutil.parser
 from django.conf import settings
 from django.core.exceptions import ValidationError
 from django.db import IntegrityError, transaction
@@ -154,13 +153,13 @@ class CouponViewSet(EdxOrderPlacementMixin, viewsets.ModelViewSet):
                         code=code,
                         course_seat_types=course_seat_types,
                         email_domains=request.data.get('email_domains'),
-                        end_datetime=dateutil.parser.parse(request.data.get('end_datetime')),
+                        end_datetime=request.data.get('end_datetime'),
                         max_uses=max_uses,
                         note=request.data.get('note'),
                         partner=partner,
                         price=request.data.get('price'),
                         quantity=request.data.get('quantity'),
-                        start_datetime=dateutil.parser.parse(request.data.get('start_datetime')),
+                        start_datetime=request.data.get('start_datetime'),
                         title=request.data.get('title'),
                         voucher_type=voucher_type
                     )

ecommerce/extensions/basket/tests/test_views.py

@@ -545,7 +545,8 @@ class VoucherAddMessagesViewTests(TestCase):
     def test_voucher_expired_error_msg(self):
         """ Verify correct error message is returned when voucher has expired. """
         end_datetime = datetime.datetime.now() - datetime.timedelta(days=1)
-        factories.VoucherFactory(code=COUPON_CODE, end_datetime=end_datetime)
+        start_datetime = datetime.datetime.now() - datetime.timedelta(days=2)
+        factories.VoucherFactory(code=COUPON_CODE, end_datetime=end_datetime, start_datetime=start_datetime)
         self.assertMessage(_("Coupon code '{code}' has expired.").format(code=COUPON_CODE))
 
     def test_voucher_added_to_basket_msg(self):

ecommerce/extensions/fulfillment/tests/test_modules.py

@@ -388,10 +388,10 @@ class EnrollmentFulfillmentModuleTests(CourseCatalogTestMixin, FulfillmentTestMi
             benefit_value=100.00,
             catalog=catalog,
             coupon=coupon,
-            end_datetime=datetime.datetime.now(),
+            end_datetime=datetime.datetime.now() + datetime.timedelta(days=30),
             name="Test Voucher",
             quantity=10,
-            start_datetime=datetime.datetime.now() + datetime.timedelta(days=30),
+            start_datetime=datetime.datetime.now(),
             voucher_type=Voucher.SINGLE_USE
         )
         voucher = vouchers[0]

ecommerce/extensions/voucher/models.py

+import datetime
 import logging
 
 from django.core.exceptions import ValidationError
@@ -29,6 +30,11 @@ class Voucher(AbstractVoucher):
         super(Voucher, self).save(*args, **kwargs)  # pylint: disable=bad-super-call
 
     def clean(self):
+        self.clean_code()
+        self.clean_datetimes()
+        super(Voucher, self).clean()  # pylint: disable=bad-super-call
+
+    def clean_code(self):
         if not self.code:
             logger.exception('Failed to create Voucher. Voucher code must be set.')
             raise ValidationError(_('Voucher code must be set.'))
@@ -36,5 +42,15 @@ class Voucher(AbstractVoucher):
             logger.exception('Failed to create Voucher. Voucher code must contain only alphanumeric characters.')
             raise ValidationError(_('Voucher code must contain only alphanumeric characters.'))
 
+    def clean_datetimes(self):
+        if not (self.end_datetime and self.start_datetime):
+            logger.exception('Failed to create Voucher. Voucher start and end datetime fields must be set.')
+            raise ValidationError(_('Voucher start and end datetime fields must be set.'))
+
+        if not (isinstance(self.end_datetime, datetime.datetime) and
+                isinstance(self.start_datetime, datetime.datetime)):
+            logger.exception('Failed to create Voucher. Voucher start and end datetime fields must be type datetime.')
+            raise ValidationError(_('Voucher start and end datetime fields must be type datetime.'))
+
 
 from oscar.apps.voucher.models import *  # noqa pylint: disable=wildcard-import,unused-wildcard-import,wrong-import-position

ecommerce/extensions/voucher/tests/test_models.py

 import datetime
+import ddt
 
 from django.core.exceptions import ValidationError
 from django.utils.timezone import now
@@ -9,25 +10,51 @@ from ecommerce.tests.testcases import TestCase
 Voucher = get_model('voucher', 'Voucher')
 
 
+@ddt.ddt
 class VoucherTests(TestCase):
-    def test_create_voucher(self):
-        """ Verify voucher is created. """
-        data = {
+    def setUp(self):
+        super(VoucherTests, self).setUp()
+        self.data = {
             'code': 'TESTCODE',
-            'start_datetime': str(now() - datetime.timedelta(days=1)),
-            'end_datetime': str(now() + datetime.timedelta(days=1))
+            'end_datetime': now() + datetime.timedelta(days=1),
+            'start_datetime': now() - datetime.timedelta(days=1)
         }
-        voucher = Voucher.objects.create(**data)
-        self.assertEqual(voucher.code, data['code'])
-        self.assertEqual(voucher.start_datetime, data['start_datetime'])
-        self.assertEqual(voucher.end_datetime, data['end_datetime'])
+
+    def test_create_voucher(self):
+        """ Verify voucher is created. """
+        voucher = Voucher.objects.create(**self.data)
+        self.assertEqual(voucher.code, self.data['code'])
+        self.assertEqual(voucher.start_datetime, self.data['start_datetime'])
+        self.assertEqual(voucher.end_datetime, self.data['end_datetime'])
 
     def test_no_code_raises_exception(self):
         """ Verify creating voucher without code set raises exception. """
+        del self.data['code']
         with self.assertRaises(ValidationError):
-            Voucher.objects.create()
+            Voucher.objects.create(**self.data)
 
     def test_wrong_code_data_raises_exception(self):
         """ Verify creating voucher with code value that contains spaces (non alphanumeric value) raises exception. """
+        self.data['code'] = 'Only alphanumeric without spaces'
+        with self.assertRaises(ValidationError):
+            Voucher.objects.create(**self.data)
+
+    @ddt.data('end_datetime', 'start_datetime')
+    def test_no_datetime_set_raises_exception(self, key):
+        """ Verify creating voucher without start/end datetime set raises exception. """
+        del self.data[key]
+        with self.assertRaises(ValidationError):
+            Voucher.objects.create(**self.data)
+
+    @ddt.data('end_datetime', 'start_datetime')
+    def test_incorrect_datetime_value_raises_exception(self, key):
+        """ Verify creating voucher with incorrect start/end datetime value raises exception. """
+        self.data[key] = 'incorrect value'
+        with self.assertRaises(ValidationError):
+            Voucher.objects.create(**self.data)
+
+    def test_start_datetime_after_end_datetime(self):
+        """ Verify creating voucher with start datetime set after end datetime raises exception. """
+        self.data['start_datetime'] = self.data['end_datetime'] + datetime.timedelta(days=1)
         with self.assertRaises(ValidationError):
-            Voucher.objects.create(code='Only alphanumeric without spaces')
+            Voucher.objects.create(**self.data)

ecommerce/extensions/voucher/utils.py

@@ -6,6 +6,7 @@ import hashlib
 import logging
 import uuid
 
+import dateutil.parser
 from django.conf import settings
 from django.core.cache import cache
 from django.core.exceptions import ValidationError
@@ -367,6 +368,26 @@ def _create_new_voucher(code, coupon, end_datetime, name, offer, start_datetime,
         raise ValidationError(_('Voucher can not be created when code is set in enrollment coupon.'))
     voucher_code = code or _generate_code_string(settings.VOUCHER_CODE_LENGTH)
 
+    if not end_datetime:
+        logger.exception('Failed to create Voucher. Voucher end datetime field must be set.')
+        raise ValidationError(_('Voucher end datetime field must be set.'))
+    elif not isinstance(end_datetime, datetime.datetime):
+        try:
+            end_datetime = dateutil.parser.parse(end_datetime)
+        except (AttributeError, ValueError):
+            logger.exception('Failed to create Voucher. Voucher end datetime value [%s] is invalid.', end_datetime)
+            raise ValidationError(_('Voucher end datetime value [{date}] is invalid.'.format(date=end_datetime)))
+
+    if not start_datetime:
+        logger.exception('Failed to create Voucher. Voucher start datetime field must be set.')
+        raise ValidationError(_('Voucher start datetime field must be set.'))
+    elif not isinstance(start_datetime, datetime.datetime):
+        try:
+            start_datetime = dateutil.parser.parse(start_datetime)
+        except (AttributeError, ValueError):
+            logger.exception('Failed to create Voucher. Voucher start datetime value [%s] is invalid.', start_datetime)
+            raise ValidationError(_('Voucher start datetime value [{date}] is invalid.'.format(date=start_datetime)))
+
     voucher = Voucher.objects.create(
         name=name,
         code=voucher_code,