add uri reference which is populated from dataseturi or uricode

etc/mappings.py

@@ -67,6 +67,7 @@
         'pycsw:OrganizationName': 'organization',
         'pycsw:SecurityConstraints': 'securityconstraints',
         'pycsw:ParentIdentifier': 'parentidentifier',
+        'pycsw:URI': 'uri',
         'pycsw:TopicCategory': 'topicategory',
         'pycsw:ResourceLanguage': 'resourcelanguage',
         'pycsw:GeographicDescriptionCode': 'geodescode',

pycsw/core/config.py

@@ -144,6 +144,7 @@ def __init__(self, prefix='csw30'):
                 'pycsw:PublicationDate': 'date_publication',
                 'pycsw:OrganizationName': 'organization',
                 'pycsw:SecurityConstraints': 'securityconstraints',
+                'pycsw:URI': 'uri',
                 'pycsw:ParentIdentifier': 'parentidentifier',
                 'pycsw:TopicCategory': 'topicategory',
                 'pycsw:ResourceLanguage': 'resourcelanguage',

pycsw/core/metadata.py

@@ -1399,6 +1399,10 @@ def _parse_iso(context, repos, exml):
     _set(context, recobj, 'pycsw:Language', md.language or md.languagecode)
     _set(context, recobj, 'pycsw:Type', md.hierarchy)
     _set(context, recobj, 'pycsw:ParentIdentifier', md.parentidentifier)
+    if hasattr(md, 'dataseturi') and md.dataseturi not in [None,'']:
+        _set(context, recobj, 'pycsw:URI', md.dataseturi)
+    elif md_identification and hasattr(md_identification, 'uricode') and len(md_identification.uricode) > 0:
+        _set(context, recobj, 'pycsw:URI', ','.join(md_identification.uricode)) 
     _set(context, recobj, 'pycsw:Date', md.datestamp)
     _set(context, recobj, 'pycsw:Modified', md.datestamp)
     _set(context, recobj, 'pycsw:Source', md.dataseturi)

pycsw/core/repository.py

@@ -807,6 +807,7 @@ def setup(database, table, create_sfsql_tables=True, postgis_geometry_column='wk
         Column('keywordstype', Text, index=True),
         Column('themes', Text, index=True),
         Column('parentidentifier', Text, index=True),
+        Column('uri', Text, index=True),
         Column('relation', Text, index=True),
         Column('time_begin', Text, index=True),
         Column('time_end', Text, index=True),

pycsw/ogc/api/records.py

@@ -1293,6 +1293,14 @@ def record2json(record, url, collection, mode='ogcapi-records'):
         'href': f'{url}/collections/{collection}/items/{record.identifier}'
     })
 
+    if hasattr(record, 'uri') and record.uri not in [None,'']:
+        record_dict['links'].append({
+            'rel': 'alternate',
+            'name': 'URI',
+            'description': 'original URI of the record',
+            'href': record.uri
+        })
+
     record_dict['links'].append({
         'rel': 'collection',
         'type': 'application/json',