handle inline model freshness config (#11728) (#11737)

* Revert "bump dbt-common (#11640)"

This reverts commit c6b7655.

* update freshness model config handling

* make sure ModelConfig.__pre_deserialize__ returns all nested items as dicts

* add changie

(cherry picked from commit f4988c6)

Co-authored-by: Colin Rogers <[email protected]>

Author: github-actions[bot]

.changes/unreleased/Fixes-20250610-211241.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: ignore invalid model freshness configs in inline model configs
+time: 2025-06-10T21:12:41.972614-07:00
+custom:
+  Author: colin-rogers-dbt
+  Issue: "11728"

core/dbt/artifacts/resources/v1/model.py

@@ -75,6 +75,20 @@ class ModelConfig(NodeConfig):
     )
     freshness: Optional[ModelFreshness] = None
 
+    @classmethod
+    def __pre_deserialize__(cls, data):
+        data = super().__pre_deserialize__(data)
+        # scrub out model configs where "build_after" is not defined
+        if (
+            "freshness" in data
+            and isinstance(data["freshness"], dict)
+            and "build_after" in data["freshness"]
+        ):
+            data["freshness"] = ModelFreshness.from_dict(data["freshness"]).to_dict()
+        else:
+            data.pop("freshness", None)
+        return data
+
 
 @dataclass
 class CustomGranularity(dbtClassMixin):

tests/functional/model_config/test_freshness_config.py

@@ -55,6 +55,16 @@
 select 1 as id
 """
 
+models__model_freshness_sql_inline = """
+{{ config(
+    materialized='table',
+    freshness={
+        'warn_after': {'count': 24, 'period': 'hour'}
+    }
+) }}
+select 1 as id
+"""
+
 models__source_freshness_sql = """
 select * from {{ source('my_source', 'source_table') }}
 """
@@ -74,9 +84,10 @@ def models(self):
             "model_b.sql": models__model_freshness_sql,
             "model_c.sql": models__source_freshness_sql,
             "model_d.sql": models__both_freshness_sql,
+            "model_e.sql": models__model_freshness_sql_inline,
         }
 
     def test_model_freshness_configs(self, project):
         run_dbt(["parse"])
         compile_results = run_dbt(["compile"])
-        assert len(compile_results) == 4  # All 4 models compiled successfully
+        assert len(compile_results) == 5  # All 4 models compiled successfully