Ignore abstract models during module validation

Author: droserasprout

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog], and this project adheres to [Semantic
 - cli: `update` and `uninstall` commands no longer require a valid config.
 - cli: Fixed a regression in `new` command leading to crash with `TypeError`.
 - config: Fixed `jobs` section deserialization.
+- database: Ignore abstract models during module validation.
 
 ## [6.4.0rc1] - 2022-12-09
 

src/dipdup/utils/database.py

@@ -114,6 +114,8 @@ def iter_models(package: Optional[str]) -> Iterator[tuple[str, Type[TortoiseMode
 
             attr_value = getattr(module, attr)
             if is_model_class(attr_value):
+                if getattr(getattr(attr_value, 'Meta', None), 'abstract', False):
+                    continue
                 yield app, attr_value