SOME ABEBE

services/backend/apps/task/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class CompetitionsConfig(AppConfig):
+    name = "apps.task"
+    label = "task"

services/backend/apps/task/models.py

@@ -0,0 +1,34 @@
+from uuid import uuid4
+
+from competition.models import Competition
+from core.models import BaseModel
+from django.db import models
+
+from apps.task.validators import ContestTaskCriteriesValidator
+
+
+class CompetitionTask(BaseModel):
+    class CompetitionTaskType(models.TextChoices):
+        INPUT = "input"
+        CHECKER = "checker"
+        REVIEW = "review"
+
+    def answer_file_upload_to(instance, filename) -> str:
+        return f"/tasks/{instance.id}/answer/{uuid4}"
+
+    competition = models.ForeignKey(Competition, on_delete=models.CASCADE)
+    title = models.TextField(verbose_name="заголовок", max_length=50)
+    description = models.TextField(verbose_name="описание", max_length=300)
+    type = models.CharField(choices=CompetitionTaskType)
+
+    # only when "input" or "checker" type
+    correct_answer_file = models.FileField(upload_to=answer_file_upload_to)
+
+    # only when "checker" type
+    answer_file_path = models.TextField()
+
+    # only when "review" type
+    criteries = models.JSONField(blank=True, null=True)
+
+    def clean(self):
+        ContestTaskCriteriesValidator()(self)

services/backend/apps/task/validators.py

@@ -0,0 +1,24 @@
+from django.core.exceptions import ValidationError
+from pydantic import BaseModel
+from pydantic import ValidationError as PydanticValidationError
+
+
+class Criteria(BaseModel):
+    name: str
+    slug: str
+    max_value: int
+    min_value: int
+
+
+class ContestTaskCriteriesValidator:
+    def __call__(self, instance):
+        if instance.criterties and not isinstance(instance.criterties, list):
+            err = "criteries must be a valid dictionary"
+            raise ValidationError(err)
+
+        try:
+            for criteria in instance.criterties:
+                Criteria(**criteria)
+        except PydanticValidationError:
+            err = "invalid criteries data"
+            raise ValidationError(err)