Add soft_extended_due_date field to Group model

Includes server-side validation to ensure `extended_due_date <
soft_extended_due_date`

autograder/core/migrations/0108_group_soft_extended_due_date.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.2 on 2024-08-22 19:23
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0107_auto_20240806_1626'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='group',
+            name='soft_extended_due_date',
+            field=models.DateTimeField(blank=True, default=None, help_text='When this field is set, it indicates the extended due date\n            that is visible to members of the group. Members of the group will\n            still be able to submit after this date but before the\n            extended_due_date.\n            Default value: None', null=True),
+        ),
+    ]

autograder/core/models/group/group.py

@@ -49,9 +49,9 @@ def validate_and_create(  # type: ignore
             member_names = [
                 user.username for user in sorted(members, key=lambda user: user.username)]
             group = self.model(_member_names=member_names, **kwargs)
+            group.full_clean()
             group.save()
             group.members.add(*members)
-            group.full_clean()
             return group
 
 
@@ -100,6 +100,14 @@ def member_names(self) -> List[str]:
             date, overriding the project closing time.
             Default value: None""")
 
+    soft_extended_due_date = models.DateTimeField(
+        null=True, default=None, blank=True,
+        help_text="""When this field is set, it indicates the extended due date
+            that is visible to members of the group. Members of the group will
+            still be able to submit after this date but before the
+            extended_due_date.
+            Default value: None""")
+
     # Remove in version 5.0.0
     old_bonus_submissions_remaining = models.IntegerField(
         blank=True,
@@ -179,6 +187,23 @@ def _is_towards_limit(submission: Submission) -> bool:
 
         return utils.count_if(self.submissions.all(), _is_towards_limit)
 
+    def clean(self) -> None:
+        super().clean()
+
+        if self.extended_due_date is not None:
+            self.extended_due_date = self.extended_due_date.replace(second=0, microsecond=0)
+        if self.soft_extended_due_date is not None:
+            self.soft_extended_due_date = self.soft_extended_due_date.replace(
+                second=0, microsecond=0)
+
+        print(f"{self.extended_due_date=}")
+
+        if self.extended_due_date is not None and self.soft_extended_due_date is not None:
+            if self.extended_due_date < self.soft_extended_due_date:
+                raise ValidationError(
+                    {'soft_extended_due_date': (
+                        'Soft extended due date must be before hard extended due date')})
+
     def save(self, *args: Any, **kwargs: Any) -> None:
         super().save(*args, **kwargs)
 
@@ -235,6 +260,7 @@ def validate_and_update(  # type: ignore
         'pk',
         'project',
         'extended_due_date',
+        'soft_extended_due_date',
         'member_names',
         'members',
 
@@ -250,7 +276,11 @@ def validate_and_update(  # type: ignore
     )
     SERIALIZE_RELATED = ('members',)
 
-    EDITABLE_FIELDS = ('extended_due_date', 'bonus_submissions_remaining')
+    EDITABLE_FIELDS = (
+        'extended_due_date',
+        'soft_extended_due_date',
+        'bonus_submissions_remaining'
+    )
 
     def to_dict(self) -> Dict[str, object]:
         result = super().to_dict()

autograder/core/tests/test_models/test_group/test_group.py

@@ -63,7 +63,9 @@ def test_valid_initialization_no_defaults(self):
 
         group.refresh_from_db()
 
-        self.assertEqual(group.extended_due_date, extended_due_date)
+        self.assertEqual(
+            group.extended_due_date,
+            extended_due_date.replace(second=0, microsecond=0))
         self.assertCountEqual(self.student_users, group.members.all())
         self.assertEqual(self.project, group.project)
 
@@ -202,6 +204,7 @@ def test_serializable_fields(self):
             'members',
             'project',
             'extended_due_date',
+            'soft_extended_due_date',
 
             'bonus_submissions_remaining',
 
@@ -221,8 +224,9 @@ def test_serializable_fields(self):
         self.assertIsInstance(serialized['members'][0], dict)
 
     def test_editable_fields(self):
-        self.assertCountEqual(['extended_due_date', 'bonus_submissions_remaining'],
-                              ag_models.Group.get_editable_fields())
+        self.assertCountEqual(
+            ['extended_due_date', 'soft_extended_due_date', 'bonus_submissions_remaining'],
+            ag_models.Group.get_editable_fields())
 
 
 class BonusSubmissionTokenCountTestCase(test_ut.UnitTestBase):
@@ -632,3 +636,30 @@ def test_exception_group_mix_of_student_and_staff(self):
             ag_models.Group.objects.validate_and_create(
                 members=self.staff_users + self.student_users,
                 project=self.project)
+
+
+class HardAndSoftExtendedDueDateTestCase(_SetUp):
+    def test_valid_soft_extended_due_date_None_extended_due_date(self):
+        extended_due_date = timezone.now() + datetime.timedelta(days=1)
+        group = ag_models.Group.objects.validate_and_create(
+            members=self.student_users,
+            project=self.project,
+            extended_due_date=extended_due_date,
+            soft_extended_due_date=None)
+
+        group.refresh_from_db()
+        self.assertEqual(
+            extended_due_date.replace(second=0, microsecond=0),
+            group.extended_due_date)
+        self.assertIsNone(group.soft_extended_due_date)
+
+    def test_error_soft_extended_due_date_after_extended_due_date(self):
+        extended_due_date = timezone.now() + timezone.timedelta(minutes=5)
+        soft_extended_due_date = extended_due_date + timezone.timedelta(minutes=5)
+
+        with self.assertRaises(exceptions.ValidationError):
+            ag_models.Group.objects.validate_and_create(
+                members=self.student_users,
+                project=self.project,
+                extended_due_date=extended_due_date,
+                soft_extended_due_date=soft_extended_due_date)

autograder/rest_api/schema/schema.yml

@@ -5551,6 +5551,14 @@ components:
           nullable: true
           type: string
           format: date-time
+        soft_extended_due_date:
+          description: "When this field is set, it indicates the extended due date\n\
+            \            that is visible to members of the group. Members of the group\
+            \ will\n            still be able to submit after this date but before\
+            \ the\n            extended_due_date.\n            Default value: None"
+          nullable: true
+          type: string
+          format: date-time
         member_names:
           description: A list of usernames of the group members, sorted alphabetically.
           type: array
@@ -5601,6 +5609,7 @@ components:
       - pk
       - project
       - extended_due_date
+      - soft_extended_due_date
       - member_names
       - members
       - bonus_submissions_remaining
@@ -5635,6 +5644,14 @@ components:
           nullable: true
           type: string
           format: date-time
+        soft_extended_due_date:
+          description: "When this field is set, it indicates the extended due date\n\
+            \            that is visible to members of the group. Members of the group\
+            \ will\n            still be able to submit after this date but before\
+            \ the\n            extended_due_date.\n            Default value: None"
+          nullable: true
+          type: string
+          format: date-time
         bonus_submissions_remaining:
           description: The number of unused bonus submission tokens this group has.
           type: integer