Fixes #83. Extract emailsf from Geoportal datasets

ckanext/lacounts/harvest/harvesters/esri.py

@@ -2,6 +2,8 @@
 
 import json
 
+from rdflib.namespace import Namespace
+
 from ckanext.dcat.harvesters import DCATRDFHarvester
 from ckanext.dcat.profiles import EuropeanDCATAPProfile
 from ckanext.lacounts.helpers import toolkit
@@ -11,6 +13,10 @@
 log = logging.getLogger(__name__)
 
 
+VCARD = Namespace("http://www.w3.org/2006/vcard/ns#")
+DCAT = Namespace("http://www.w3.org/ns/dcat#")
+
+
 class LacountsESRIGeoportalHarvester(DCATRDFHarvester):
     '''
     A CKAN Harvester for ESRI Geoportals.
@@ -73,4 +79,12 @@ def _remove_pkg_dict_extra(pkg_dict, key):
             if val:
                 dataset_dict[name] = val
 
+        # See project-open-data/project-open-data.github.io#621
+        for agent in self.g.objects(dataset_ref, DCAT.contactPoint):
+            email = self._without_mailto(
+                self._object_value(agent, VCARD.email)
+            )
+            if email:
+                dataset_dict['contact_email'] = email
+
         return dataset_dict