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src/domain/post.py

@@ -0,0 +1,26 @@
+import uuid
+from typing import TYPE_CHECKING
+
+from tortoise import fields
+
+from .base import TimestampedModel
+
+if TYPE_CHECKING:
+    from .channel import Channel
+
+
+class Post(TimestampedModel):
+    message_id = fields.IntField()
+    text = fields.TextField()
+    deleted_from_channel_at = fields.DatetimeField(null=True)
+
+    channel: fields.ForeignKeyRelation['Channel'] = fields.ForeignKeyField(
+        'models.Channel', related_name='posts', on_delete=fields.CASCADE, index=True
+    )
+
+    if TYPE_CHECKING:
+        channel_id: uuid.UUID
+
+    class Meta:
+        table = 'post'
+        unique_together = (('channel_id', 'message_id'),)