feat: show relations of nested places in Place detail page

closes #49

apis_ontology/tables.py

@@ -150,6 +150,12 @@ class RelationNameColumn(CustomTemplateColumn):
     orderable = False
 
 
+class RelationSubjectColumn(CustomTemplateColumn):
+    template_name = "columns/relation_subject.html"
+    verbose_name = "Subject"
+    orderable = False
+
+
 class RelationPredicateColumn(CustomTemplateColumn):
     template_name = "columns/relation_predicate.html"
     verbose_name = "Object"
@@ -224,6 +230,22 @@ class Meta(GenericTable.Meta):
         per_page = 1000
 
 
+class PlaceRelationsTable(TibScholEntityMixinRelationsTable):
+    subject = RelationSubjectColumn()
+
+    class Meta(TibScholEntityMixinRelationsTable.Meta):
+        pass
+
+    field_order = [
+        "subject",
+        "relation",
+        "predicate",
+        "support_notes",
+        "zotero_refs",
+        "tei_refs",
+    ]
+
+
 class RelationsTable(TibScholEntityMixinRelationsTable):
     reverse = False
 

apis_ontology/templates/apis_ontology/place_detail.html

@@ -1,5 +1,5 @@
 {% extends "apis_core/apis_entities/e53_place_detail.html" %}
 
 {% block relations-include %}
-{% include "relations/list_relations_include_tabs.html"  %}
+{% include "relations/place_list_relations_include_tabs.html"  %}
 {% endblock relations-include %}

apis_ontology/templates/apis_ontology/place_form.html

@@ -1,5 +1,5 @@
 {% extends "apis_core/apis_entities/abstractentity_form.html" %}
 
 {% block relations-include %}
-{% include "relations/list_relations_include_tabs.html" with edit=True %}
+{% include "relations/place_list_relations_include_tabs.html" with edit=True %}
 {% endblock relations-include %}

apis_ontology/templates/columns/relation_subject.html

@@ -0,0 +1,9 @@
+{% if record.forward %}
+<a href="{{ record.subj.get_absolute_url }}" style="{{ highlight_style }}">
+    {{ record.subj }}
+</a>
+{% else %}
+<a href="{{ record.obj.get_absolute_url }}" style="{{ highlight_style }}">
+    {{ record.obj }}
+</a>
+{% endif %}

apis_ontology/templates/relations/place_list_relations_include_tabs.html

@@ -0,0 +1,9 @@
+{% extends "relations/list_relations_include_tabs.html" %}
+
+{% load nested_relations %}
+
+
+{% block display-relations %}
+{% relations_from_place from_obj=object include_places_within=True as relations %}
+    {{ block.super }}
+{% endblock display-relations %}

apis_ontology/templatetags/nested_relations.py

@@ -0,0 +1,44 @@
+import logging
+from django import template
+from django.utils.safestring import mark_safe
+from django.contrib.contenttypes.models import ContentType
+from apis_ontology.models import Place, PlaceIsLocatedWithinPlace
+from apis_core.relations.templatetags.relations import relations_from
+
+register = template.Library()
+
+logger = logging.getLogger(__name__)
+
+
+@register.simple_tag
+def relations_from_place(
+    from_obj, relation_type: ContentType = None, include_places_within=False
+):
+
+    def locations_contained_in(place_id):
+        nested_places = [
+            rel.subj_object_id
+            for rel in set(
+                (PlaceIsLocatedWithinPlace.objects.filter(obj_object_id=place_id))
+            )
+        ]
+        for p in nested_places:
+            nested_places.extend(locations_contained_in(p))
+
+        return nested_places
+
+    rels = relations_from(from_obj, relation_type)
+    if not include_places_within:
+        return rels
+
+    nested_locs = locations_contained_in(from_obj.pk)
+    if not nested_locs:
+        return rels
+
+    nested_rels = []
+    for nested_loc in nested_locs:
+        nested_rels.extend(
+            relations_from(Place.objects.get(pk=nested_loc), relation_type)
+        )
+
+    return [*rels, *nested_rels]