add endpoint for get task attachments

services/backend/api/v1/task/schemas.py

@@ -3,7 +3,7 @@ from uuid import UUID
 
 from ninja import ModelSchema, Schema
 
-from apps.task.models import CompetitionTask, CompetitionTaskSubmission
+from apps.task.models import CompetitionTask, CompetitionTaskSubmission, CompetitionTaskAttachment
 
 
 class TaskOutSchema(ModelSchema):
@@ -30,3 +30,9 @@ class HistorySubmissionOut(ModelSchema):
     class Meta:
         model = CompetitionTaskSubmission
         fields = ("id", "earned_points", "timestamp", "content",)
+
+
+class TaskAttachmentSchema(ModelSchema):
+    class Meta:
+        model = CompetitionTaskAttachment
+        fields = ("id", "file", "public",)

services/backend/api/v1/task/views.py

@@ -8,6 +8,7 @@ from api.v1.ping.schemas import PingOut
 from api.v1.schemas import ForbiddenError, NotFoundError, UnauthorizedError
 from api.v1.task.schemas import (
     HistorySubmissionOut,
+    TaskAttachmentSchema,
     TaskOutSchema,
     TaskSubmissionOut,
 )
@@ -15,6 +16,7 @@ from apps.competition.models import State
 from apps.task.models import (
     Competition,
     CompetitionTask,
+    CompetitionTaskAttachment,
     CompetitionTaskSubmission,
 )
 
@@ -141,3 +143,17 @@ def get_submissions_history(request, competition_id: UUID, task_id: UUID):
     )
 
     return status.OK, submissions_history
+
+
+@router.get(
+    "competitions/{competition_id}/tasks/{task_id}/attachments",
+    response={
+        status.OK: list[TaskAttachmentSchema],
+        status.UNAUTHORIZED: UnauthorizedError,
+    },
+)
+def get_task_attachments(request, competition_id: UUID, task_id: UUID):
+    task = get_object_or_404(CompetitionTask, id=task_id)
+    return status.OK, CompetitionTaskAttachment.objects.filter(
+        competition_id=competition_id, task=task, user=request.auth
+    )

services/backend/apps/task/models.py

@@ -5,7 +5,6 @@ from tinymce.models import HTMLField
 
 from apps.competition.models import Competition
 from apps.core.models import BaseModel
-from apps.task.validators import ContestTaskCriteriesValidator
 from apps.user.models import User