Merge branch 'master' into wc-application-admin

backend/clubs/admin.py

@@ -15,6 +15,7 @@
     Advisor,
     ApplicationCommittee,
     ApplicationCycle,
+    ApplicationExtension,
     ApplicationMultipleChoice,
     ApplicationQuestion,
     ApplicationQuestionResponse,
@@ -412,6 +413,7 @@ class ApplicationSubmissionAdmin(admin.ModelAdmin):
 
 admin.site.register(Asset)
 admin.site.register(ApplicationCommittee)
+admin.site.register(ApplicationExtension)
 admin.site.register(ApplicationMultipleChoice)
 admin.site.register(ApplicationQuestion)
 admin.site.register(ApplicationQuestionResponse)

backend/clubs/migrations/0091_applicationextension.py

@@ -0,0 +1,47 @@
+# Generated by Django 3.2.18 on 2023-11-25 03:58
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("clubs", "0090_auto_20230106_1443"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ApplicationExtension",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("end_time", models.DateTimeField()),
+                (
+                    "application",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="extensions",
+                        to="clubs.clubapplication",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+            options={"unique_together": {("user", "application")}},
+        ),
+    ]

backend/clubs/models.py

@@ -1593,6 +1593,40 @@ def validate_template(cls, template):
         return all(t in cls.VALID_TEMPLATE_TOKENS for t in tokens)
 
 
+class ApplicationExtension(models.Model):
+    """
+    Represents an individual club application extension.
+    """
+
+    user = models.ForeignKey(get_user_model(), on_delete=models.CASCADE)
+    application = models.ForeignKey(
+        ClubApplication, related_name="extensions", on_delete=models.CASCADE
+    )
+    end_time = models.DateTimeField()
+
+    def send_extension_mail(self):
+        context = {
+            "name": self.user.first_name,
+            "application_name": self.application.name,
+            "end_time": self.end_time,
+            "club": self.application.club.name,
+            "url": (
+                f"https://pennclubs.com/club/{self.application.club.code}"
+                f"/application/{self.application.pk}/"
+            ),
+        }
+
+        send_mail_helper(
+            name="application_extension",
+            subject=f"Application Extension for {self.application.name}",
+            emails=[self.user.email],
+            context=context,
+        )
+
+    class Meta:
+        unique_together = (("user", "application"),)
+
+
 class ApplicationCommittee(models.Model):
     """
     Represents a committee for a particular club application. Each application
@@ -1696,6 +1730,9 @@ class ApplicationSubmission(models.Model):
     def __str__(self):
         return f"{self.user.first_name}: {self.application.name}"
 
+    class Meta:
+        unique_together = (("user", "application", "committee"),)
+
 
 class ApplicationQuestionResponse(models.Model):
     """
@@ -1724,6 +1761,9 @@ class ApplicationQuestionResponse(models.Model):
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
 
+    class Meta:
+        unique_together = (("question", "submission"),)
+
 
 class QuestionResponse(models.Model):
     """

backend/clubs/serializers.py

@@ -24,6 +24,7 @@
     Advisor,
     ApplicationCommittee,
     ApplicationCycle,
+    ApplicationExtension,
     ApplicationMultipleChoice,
     ApplicationQuestion,
     ApplicationQuestionResponse,
@@ -2443,6 +2444,86 @@ class Meta:
         fields = ("text", "multiple_choice", "question_type", "question")
 
 
+class ApplicationExtensionSerializer(serializers.ModelSerializer):
+    first_name = serializers.CharField(source="user.first_name", read_only=True)
+    last_name = serializers.CharField(source="user.last_name", read_only=True)
+    username = serializers.CharField(source="user.username", read_only=False)
+    graduation_year = serializers.CharField(
+        source="user.profile.graduation_year", read_only=True
+    )
+
+    class Meta:
+        model = ApplicationExtension
+        fields = (
+            "id",
+            "username",
+            "first_name",
+            "last_name",
+            "graduation_year",
+            "end_time",
+        )
+
+    def create(self, validated_data):
+        username = validated_data.get("user").pop("username")
+        validated_data["user"] = get_user_model().objects.get(username=username)
+
+        application_pk = self.context["view"].kwargs.get("application_pk")
+        validated_data["application"] = ClubApplication.objects.filter(
+            pk=application_pk
+        ).first()
+
+        return super().create(validated_data)
+
+    def update(self, instance, validated_data):
+        if user_field := validated_data.pop("user", None):
+            username = user_field.pop("username")
+            user = get_user_model().objects.get(username=username)
+            instance.user = user
+        return super().update(instance, validated_data)
+
+    def validate(self, data):
+        username = None
+        if user_field := data.get("user") or not self.instance:
+            username = user_field.get("username")
+            user = get_user_model().objects.filter(username=username).first()
+            if not user:
+                raise serializers.ValidationError("Please provide a valid username!")
+
+        application_pk = self.context["view"].kwargs.get("application_pk")
+        application = ClubApplication.objects.filter(pk=application_pk).first()
+
+        if not application:
+            raise serializers.ValidationError("Invalid application id!")
+
+        extension_exists = ApplicationExtension.objects.filter(
+            user=user, application=application
+        ).exists()
+        modify_username = not self.instance or (
+            username and self.instance.user.username != username
+        )
+
+        if modify_username and extension_exists:
+            raise serializers.ValidationError(
+                "An extension for this user and application already exists!"
+            )
+
+        extension_end_time = data.get("end_time")
+        if (
+            extension_end_time
+            and extension_end_time <= application.application_end_time
+        ):
+            raise serializers.ValidationError(
+                "Extension end time must be greater than the application end time!"
+            )
+
+        return data
+
+    def save(self):
+        extension_obj = super().save()
+        extension_obj.send_extension_mail()
+        return extension_obj
+
+
 class ApplicationSubmissionSerializer(serializers.ModelSerializer):
     committee = ApplicationCommitteeSerializer(required=False, read_only=True)
     responses = ApplicationQuestionResponseSerializer(

backend/clubs/urls.py

@@ -4,6 +4,7 @@
 from clubs.views import (
     AdminNoteViewSet,
     AdvisorViewSet,
+    ApplicationExtensionViewSet,
     ApplicationQuestionViewSet,
     ApplicationSubmissionUserViewSet,
     ApplicationSubmissionViewSet,
@@ -120,6 +121,10 @@
     basename="club-application-submissions",
 )
 
+applications_router.register(
+    r"extensions", ApplicationExtensionViewSet, basename="club-application-extensions"
+)
+
 router.register(r"booths", ClubBoothsViewSet, basename="club-booth")
 
 urlpatterns = [