Fix #1524. Fixed bug where unlinking copied Blender objects didn't work.

src/blenderbim/blenderbim/bim/handler.py

@@ -60,7 +60,8 @@ def active_object_callback():
     for obj in bpy.context.selected_objects:
         if not obj.BIMObjectProperties.ifc_definition_id:
             continue
-        if IfcStore.id_map[obj.BIMObjectProperties.ifc_definition_id] != obj:
+        stored_obj = IfcStore.get_element(obj.BIMObjectProperties.ifc_definition_id)
+        if stored_obj and stored_obj != obj:
             bpy.ops.bim.copy_class(obj=obj.name)
 
 

src/blenderbim/blenderbim/bim/ifc.py

@@ -84,13 +84,19 @@ class IfcStore:
             except:
                 pass
 
-        if element:
-            del IfcStore.id_map[element.id()]
-        else:
-            del IfcStore.id_map[obj.BIMObjectProperties.ifc_definition_id]
+        try:
+            if element:
+                del IfcStore.id_map[element.id()]
+            else:
+                del IfcStore.id_map[obj.BIMObjectProperties.ifc_definition_id]
+        except:
+            pass
 
-        if element and hasattr(element, "GlobalId"):
-            del IfcStore.guid_map[element.GlobalId]
+        try:
+            if element and hasattr(element, "GlobalId"):
+                del IfcStore.guid_map[element.GlobalId]
+        except:
+            pass
 
         if obj:
             obj.BIMObjectProperties.ifc_definition_id = 0

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

@@ -16,6 +16,8 @@ class BIM_PT_aggregate(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if not IfcStore.get_file().by_id(props.ifc_definition_id).is_a("IfcObjectDefinition"):
             return False
         if props.ifc_definition_id not in Data.products:

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

@@ -78,6 +78,8 @@ class BIM_PT_object_attributes(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
+            return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)
 
     def draw(self, context):

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

@@ -20,6 +20,8 @@ class BIM_PT_boundary(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if IfcStore.get_file().by_id(props.ifc_definition_id).is_a() not in ["IfcSpace", "IfcExternalSpatialElement"]:
             return False
         return True

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

@@ -70,6 +70,8 @@ class BIM_PT_classification_references(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
+            return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)
 
     def draw(self, context):

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

@@ -64,6 +64,8 @@ class BIM_PT_object_constraints(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
+            return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)
 
     def draw(self, context):

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

@@ -68,6 +68,8 @@ class BIM_PT_object_documents(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
+            return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)
 
     def draw(self, context):

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

@@ -14,6 +14,8 @@ class BIM_PT_representations(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
+            return False
         return IfcStore.get_file()
 
     def draw(self, context):

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

@@ -36,6 +36,8 @@ class BIM_PT_object_material(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if not hasattr(IfcStore.get_file().by_id(props.ifc_definition_id), "HasAssociations"):
             return False
         return True

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

@@ -101,6 +101,8 @@ class BIM_PT_object_psets(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if props.ifc_definition_id not in Data.products:
             Data.load(IfcStore.get_file(), props.ifc_definition_id)
         if not Data.products[props.ifc_definition_id]:
@@ -144,6 +146,8 @@ class BIM_PT_object_qtos(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if props.ifc_definition_id not in Data.products:
             Data.load(IfcStore.get_file(), props.ifc_definition_id)
         if not Data.products[props.ifc_definition_id]:

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

@@ -25,6 +25,7 @@ class BIM_PT_class(Panel):
                     row = self.layout.row(align=True)
                     row.label(text="IFC Element Not Found")
                     row.operator("bim.unlink_object", icon="UNLINKED", text="")
+                    return
             if props.is_reassigning_class:
                 row = self.layout.row(align=True)
                 row.operator("bim.reassign_class", icon="CHECKMARK")

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

@@ -17,6 +17,8 @@ class BIM_PT_spatial(Panel):
         oprops = context.active_object.BIMObjectProperties
         if not oprops.ifc_definition_id:
             return False
+        if not IfcStore.get_element(oprops.ifc_definition_id):
+            return False
         if oprops.ifc_definition_id not in Data.products:
             Data.load(IfcStore.get_file(), oprops.ifc_definition_id)
         if not Data.products[oprops.ifc_definition_id]:

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

@@ -76,6 +76,8 @@ class BIM_PT_structural_boundary_conditions(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if not IfcStore.get_file().by_id(props.ifc_definition_id).is_a("IfcStructuralConnection"):
             return False
         return True
@@ -106,6 +108,8 @@ class BIM_PT_connected_structural_members(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if not IfcStore.get_file().by_id(props.ifc_definition_id).is_a("IfcStructuralConnection"):
             return False
         return True
@@ -160,6 +164,8 @@ class BIM_PT_structural_member(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if not IfcStore.get_file().by_id(props.ifc_definition_id).is_a("IfcStructuralMember"):
             return False
         return True
@@ -198,6 +204,8 @@ class BIM_PT_structural_connection(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if not IfcStore.get_file().by_id(props.ifc_definition_id).is_a("IfcStructuralConnection"):
             return False
         return True

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

@@ -15,6 +15,8 @@ class BIM_PT_type(Panel):
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False
+        if not IfcStore.get_element(props.ifc_definition_id):
+            return False
         if props.ifc_definition_id not in Data.products:
             Data.load(IfcStore.get_file(), props.ifc_definition_id)
         if not Data.products[props.ifc_definition_id]:

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

@@ -14,6 +14,8 @@ class BIM_PT_voids(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
+            return False
         return IfcStore.get_file()
 
     def draw(self, context):