Fix Course STATUS_CHOICES

apps/course/models.py

@@ -18,10 +18,13 @@ class Like(models.Model):
 
 
 class Course(models.Model):
+    PENDING = 0
+    PUBLISHED = 1
+    ARCHIVED = 2
     STATUS_CHOICES = (
-        (0, 'Pending'),
-        (1, 'Published'),
-        (2, 'Archived'),
+        (PENDING, 'Pending'),
+        (PUBLISHED, 'Published'),
+        (ARCHIVED, 'Archived'),
     )
     author = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True)
     title = models.CharField('Название курса', max_length=100, db_index=True)