ref

src/domain/post.py

@@ -24,3 +24,9 @@ class Post(TimestampedModel):
     class Meta:
         table = 'post'
         unique_together = (('channel_id', 'message_id'),)
+
+    @property
+    def url(self) -> str | None:
+        if not self.channel.username:
+            return None
+        return f'https://t.me/{self.channel.username}/{self.message_id}'