From d01e9df08a02f522b4dc2b588e6a41e2816fafb1 Mon Sep 17 00:00:00 2001
From: david <dcchabgood@gmail.com>
Date: Fri, 18 Aug 2023 10:24:44 +1000
Subject: [PATCH] Add prez:endpointComponentURI for parents in endpoints such
 that the URIs of parents are included in the response, and get annotated,
 such that labels are available for breadcrumbs. Update spaceprez profile to
 include dcterms:title for the OAS profile.

---
 .../profiles/spaceprez_default_profiles.ttl           |  1 +
 prez/routers/object.py                                | 11 +++++++++++
 prez/sparql/objects_listings.py                       |  8 ++++----
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/prez/reference_data/profiles/spaceprez_default_profiles.ttl b/prez/reference_data/profiles/spaceprez_default_profiles.ttl
index 19550ed8..fdde1cc2 100644
--- a/prez/reference_data/profiles/spaceprez_default_profiles.ttl
+++ b/prez/reference_data/profiles/spaceprez_default_profiles.ttl
@@ -66,6 +66,7 @@ prez:SpacePrezProfile
     dcterms:description "The OGC API Features specifies the behavior of Web APIs that provide access to features in a dataset in a manner independent of the underlying data store." ;
     dcterms:identifier "oai"^^xsd:token ;
     dcterms:title "OGC API Features" ;
+    altr-ext:hasLabelPredicate dcterms:title ;
     altr-ext:constrainsClass
         dcat:Dataset ,
         geo:FeatureCollection ,
diff --git a/prez/routers/object.py b/prez/routers/object.py
index 4ccc73ad..ddfb27ab 100644
--- a/prez/routers/object.py
+++ b/prez/routers/object.py
@@ -260,6 +260,17 @@ def generate_system_links_object(
                 Literal(endpoint),
             )
         )
+    # TODO include the actual relationships between the object and the parent objects in the graph
+    for ep_result in relationship_results:
+        for k, v in ep_result.items():
+            if k != "endpoint":
+                internal_links_graph.add(
+                    (
+                        URIRef(object_uri),
+                        PREZ["endpointComponentURI"],
+                        URIRef(v["value"]),
+                    )
+                )
 
 
 # def generate_system_links_non_object(
diff --git a/prez/sparql/objects_listings.py b/prez/sparql/objects_listings.py
index 5988d12d..13ef4658 100644
--- a/prez/sparql/objects_listings.py
+++ b/prez/sparql/objects_listings.py
@@ -888,16 +888,16 @@ def generate_relationship_query(
     for endpoint, relations in endpoint_to_relations.items():
         subquery = f"""{{ SELECT ?endpoint {" ".join(["?parent_" + str(i+1) for i, _ in enumerate(relations)])}
         WHERE {{\n BIND("{endpoint}" as ?endpoint)\n"""
-        previous_uri = f"<{uri}>"
+        uri_str = f"<{uri}>"
         for i, relation in enumerate(relations):
             predicate, direction = relation
             parent = "?parent_" + str(i + 1)
             if predicate:
                 if direction == Literal("parent_to_focus"):
-                    subquery += f"{parent} <{predicate}> {previous_uri} .\n"
+                    subquery += f"{parent} <{predicate}> {uri_str} .\n"
                 else:  # assuming the direction is "focus_to_parent"
-                    subquery += f"{previous_uri} <{predicate}> {parent} .\n"
-            previous_uri = parent
+                    subquery += f"{uri_str} <{predicate}> {parent} .\n"
+            uri_str = parent
         subquery += "}}"
         subqueries.append(subquery)