registration implemented

Main/models/solution.py

@@ -0,0 +1,40 @@
+from os import mkdir
+from os.path import join, exists
+from shutil import rmtree
+from subprocess import call
+
+from django.contrib.auth.models import User
+from django.db import models
+from django.utils import timezone
+
+from Main.models.task import Task
+from Main.models.language import Language
+from Sprint.settings import CONSTS, SOLUTIONS_ROOT
+
+
+class Solution(models.Model):
+    task = models.ForeignKey(Task, on_delete=models.CASCADE)
+    user = models.ForeignKey(User, on_delete=models.CASCADE)
+    language = models.ForeignKey(Language, on_delete=models.SET_NULL, null=True)
+    time_sent = models.DateTimeField(default=timezone.now)
+    result = models.TextField(default=CONSTS["in_queue_status"])
+
+    def delete(self, using=None, keep_parents=False):
+        if exists(self.directory):
+            rmtree(self.directory)
+        super().delete(using=using, keep_parents=keep_parents)
+
+    def create_dirs(self):
+        mkdir(self.directory)
+        mkdir(self.testing_directory)
+
+    @property
+    def directory(self):
+        return join(SOLUTIONS_ROOT, str(self.id))
+
+    @property
+    def testing_directory(self):
+        return join(self.directory, 'test_dir')
+
+    def exec_command(self, command, working_directory='app', timeout=None):
+        return call(f'docker exec -i solution_{self.id} bash -c "cd {working_directory} && {command}"', shell=True, timeout=timeout)