Support Add Brick with IfcEntity selected (part 1)

Next is to add the reference

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

@@ -131,16 +131,13 @@ class AddBrick(bpy.types.Operator, Operator):
 
     def _execute(self, context):
         props = context.scene.BIMBrickProperties
-        library = None
-        if props.libraries:
-            library = tool.Ifc.get().by_id(int(props.libraries))
         core.add_brick(
             tool.Ifc,
             tool.Brick,
             element=tool.Ifc.get_entity(context.active_object) if context.selected_objects else None,
             namespace=props.namespace,
             brick_class=props.brick_entity_class,
-            library=library,
+            library=tool.Ifc.get().by_id(int(props.libraries)) if props.libraries else None,
             label=props.new_brick_label,
         )
 

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

@@ -90,8 +90,13 @@ class BIM_PT_brickschema(Panel):
         row = self.layout.row(align=True)
         row.prop(data=self.props, property="brick_entity_create_type", text="")
 
+        # hide this if selected entity already has a reference
         row = self.layout.row(align=True)
-        row.prop(data=self.props, property="new_brick_label", text="")
+        active = tool.Ifc.get_entity(context.active_object)
+        if active and context.selected_objects:
+            row.label(text=active.Name if active.Name else "Unnamed")
+        else:
+            row.prop(data=self.props, property="new_brick_label", text="")
         prop_with_search(row, self.props, "brick_entity_class", text="")
         row.operator("bim.add_brick", text="", icon="ADD")
 

src/blenderbim/blenderbim/tool/brick.py

@@ -67,9 +67,12 @@ class Brick(blenderbim.core.tool.Brick):
     def add_brick_from_element(cls, element, namespace, brick_class):
         ns = Namespace(namespace)
         brick = ns[element.GlobalId]
-        BrickStore.graph.add((brick, RDF.type, URIRef(brick_class)))
-        if element.Name:
-            BrickStore.graph.add((brick, URIRef("http://www.w3.org/2000/01/rdf-schema#label"), Literal(element.Name)))
+        with BrickStore.new_changeset() as cs:
+            cs.add((brick, RDF.type, URIRef(brick_class)))
+            if element.Name:
+                cs.add((brick, URIRef("http://www.w3.org/2000/01/rdf-schema#label"), Literal(element.Name)))
+            else:
+                cs.add((brick, URIRef("http://www.w3.org/2000/01/rdf-schema#label"), Literal("Unnamed")))
         return str(brick)
 
     @classmethod