uses issued as reference for label NEW

ckanext/odsh/plugin.py

@@ -561,10 +561,22 @@ class OdshPlugin(plugins.SingletonPlugin, DefaultTranslation, DefaultDatasetForm
         return pkg_dict
     
     def _is_package_new(self, pkg_dict):
-        date_package_created = self._get_date_from_string(pkg_dict['metadata_created'])
+        date_package_created_as_str = self._get_date_of_package_creation_from_pkg_dict(pkg_dict)
+        if date_package_created_as_str == None:
+            is_new = False
+        else:
+            date_package_created = self._get_date_from_string(date_package_created_as_str)
             is_new = odsh_helpers.is_within_last_month(date_package_created)
         return is_new
     
+    def _get_date_of_package_creation_from_pkg_dict(self, pkg_dict):
+        if 'extras' in pkg_dict:
+            extras = pk_dict['extras']
+            issued = odsh_helpers.odsh_extract_value_from_extras(extras=extras, key='issued') # is None if issued not in extras
+            return issued
+        else:
+            return None
+    
     def _get_date_from_string(self, date_time_str):
         # todo: update this function if used in different context
         date_time_format = '%Y-%m-%dT%H:%M:%S.%f' #e.g. u'2019-06-12T11:56:25.059563'