Use the analysis:last-modified-at extra

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - Improve DCAT harvest of mime type [#2857](https://github.com/opendatateam/udata/pull/2857)
 - Don't crash on files not found when purging resources [2858](https://github.com/opendatateam/udata/pull/2858)
+- Use the resource's extra `analysis:last-modified-at` in the `last_modified` property [#2863](https://github.com/opendatateam/udata/pull/2863)
 - Add optionnal harvest validation form [#2864](https://github.com/opendatateam/udata/pull/2864)
 - Fix dataset list default sorting [#2867](https://github.com/opendatateam/udata/pull/2867)
 

udata/core/dataset/models.py

@@ -302,6 +302,8 @@ def created_at(self):
     def last_modified(self):
         if self.harvest and self.harvest.modified_at and to_naive_datetime(self.harvest.modified_at) < datetime.utcnow():
             return max([self.last_modified_internal, to_naive_datetime(self.harvest.modified_at)])
+        if self.filetype == 'remote' and self.extras.get('analysis:last-modified-at'):
+            return to_naive_datetime(self.extras.get('analysis:last-modified-at'))
         return self.last_modified_internal
 
     def clean(self):

udata/tests/dataset/test_dataset_model.py

@@ -689,3 +689,10 @@ def test_harvest_resource_metadata_past_modifed_at(self):
         resource.validate()
 
         assert resource.last_modified == harvest_metadata.modified_at
+
+    def test_resource_metadata_extra_modifed_at(self):
+        resource = ResourceFactory(filetype='remote')
+        resource.extras.update({'analysis:last-modified-at': datetime(2023,1,1)})
+        resource.validate()
+
+        assert resource.last_modified == resource.extras['analysis:last-modified-at']