Add: PostDescription model to archive app

backend/apps/archive/models.py

@@ -49,6 +49,14 @@ class DescriptionModel(models.Model):
 
     def __str__(self):
         return str(self.hash)
+
+
+class PostDescription(models.Model):
+    post = models.ForeignKey("PostModel", on_delete=models.CASCADE)
+    description = models.ForeignKey(DescriptionModel, on_delete=models.CASCADE)
+    date_imported = models.DateTimeField(auto_now_add=True)
+
+
 class PostModel(models.Model):
     post_id = models.CharField(max_length=128, db_index=True)
     title = models.CharField(max_length=64)