Load Brick relationships from schema

src/blenderbim/blenderbim/bim/module/brick/prop.py

@@ -56,15 +56,7 @@ def get_brick_roots(self, context):
 
 
 def get_brick_relations(self, context): # this will be queried from graph
-    return [("https://brickschema.org/schema/Brick#hasLocation", "hasLocation", ""),
-            ("https://brickschema.org/schema/Brick#isLocationOf", "isLocationOf", ""),
-            ("https://brickschema.org/schema/Brick#hasPart", "hasPart", ""),
-            ("https://brickschema.org/schema/Brick#isPartOf", "isPartOf", ""),
-            ("https://brickschema.org/schema/Brick#hasPoint", "hasPoint", ""),
-            ("https://brickschema.org/schema/Brick#isPointOf", "isPointOf", ""),
-            ("https://brickschema.org/schema/Brick#feeds", "feeds", ""),
-            ("https://brickschema.org/schema/Brick#isFedBy", "isFedBy", ""),
-            ("http://www.w3.org/2000/01/rdf-schema#label", "label", "")]
+    return BrickStore.relationships
 
 
 class Brick(PropertyGroup):

src/blenderbim/blenderbim/tool/brick.py

@@ -286,6 +286,7 @@ class Brick(blenderbim.core.tool.Brick):
         BrickStore.path = filepath
         BrickStore.load_namespaces()
         BrickStore.load_entity_classes()
+        BrickStore.load_relationships()
 
     @classmethod
     def new_brick_file(cls):
@@ -298,6 +299,7 @@ class Brick(blenderbim.core.tool.Brick):
         BrickStore.graph.bind("digitaltwin", Namespace("https://example.org/digitaltwin#"))
         BrickStore.load_namespaces()
         BrickStore.load_entity_classes()
+        BrickStore.load_relationships()
 
     @classmethod
     def pop_brick_breadcrumb(cls):
@@ -363,6 +365,7 @@ class BrickStore:
     namespaces = []
     root_classes = ["Equipment", "Location", "System", "Point"]
     entity_classes = {}
+    relationships = []
 
     @staticmethod
     def purge():
@@ -371,6 +374,7 @@ class BrickStore:
         BrickStore.path = None
         BrickStore.namespaces = []
         BrickStore.entity_classes = {}
+        BrickStore.relationships = []
 
     @classmethod
     def get_project(cls):
@@ -407,6 +411,20 @@ class BrickStore:
             for uri in sorted([x[0].toPython() for x in query]):
                 BrickStore.entity_classes[root_class].append((uri, uri.split("#")[-1], ""))
 
+    @classmethod
+    def load_relationships(cls):
+        query = BrickStore.graph.query(
+            """
+            PREFIX brick: <https://brickschema.org/schema/Brick#>
+            PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+            SELECT DISTINCT ?relation WHERE {
+                ?relation rdfs:subPropertyOf brick:Relationship .
+            }
+            """
+        )
+        for uri in sorted([x[0].toPython() for x in query]):
+            BrickStore.relationships.append((uri, uri.split("#")[-1], ""))
+
     @classmethod
     def set_history_size(cls, size):
         cls.history_size = size