Only allow drawing / sheet / schedule creation once the IFC is saved to enforce correct relative paths.

src/blenderbim/blenderbim/bim/module/drawing/data.py

@@ -58,9 +58,17 @@ class SheetsData:
 
     @classmethod
     def load(cls):
-        cls.data = {"total_sheets": cls.total_sheets(), "titleblocks": cls.titleblocks()}
+        cls.data = {
+            "has_saved_ifc": cls.has_saved_ifc(),
+            "total_sheets": cls.total_sheets(),
+            "titleblocks": cls.titleblocks(),
+        }
         cls.is_loaded = True
 
+    @classmethod
+    def has_saved_ifc(cls):
+        return os.path.isfile(tool.Ifc.get_path())
+
     @classmethod
     def total_sheets(cls):
         return len([d for d in tool.Ifc.get().by_type("IfcDocumentInformation") if d.Scope == "SHEET"])
@@ -88,9 +96,17 @@ class DrawingsData:
 
     @classmethod
     def load(cls):
-        cls.data = {"total_drawings": cls.total_drawings(), "location_hint": cls.location_hint()}
+        cls.data = {
+            "has_saved_ifc": cls.has_saved_ifc(),
+            "total_drawings": cls.total_drawings(),
+            "location_hint": cls.location_hint(),
+        }
         cls.is_loaded = True
 
+    @classmethod
+    def has_saved_ifc(cls):
+        return os.path.isfile(tool.Ifc.get_path())
+
     @classmethod
     def total_drawings(cls):
         return len([e for e in tool.Ifc.get().by_type("IfcAnnotation") if e.ObjectType == "DRAWING"])
@@ -112,9 +128,13 @@ class SchedulesData:
 
     @classmethod
     def load(cls):
-        cls.data = {"total_schedules": cls.total_schedules()}
+        cls.data = {"has_saved_ifc": cls.has_saved_ifc(), "total_schedules": cls.total_schedules()}
         cls.is_loaded = True
 
+    @classmethod
+    def has_saved_ifc(cls):
+        return os.path.isfile(tool.Ifc.get_path())
+
     @classmethod
     def total_schedules(cls):
         return len([d for d in tool.Ifc.get().by_type("IfcDocumentInformation") if d.Scope == "SCHEDULE"])

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

@@ -158,6 +158,14 @@ class BIM_PT_drawings(Panel):
         if not DrawingsData.is_loaded:
             DrawingsData.load()
 
+        if not DrawingsData.data["has_saved_ifc"]:
+            row = self.layout.row()
+            row.label(text="Project Not Yet Saved", icon="ERROR")
+            row = self.layout.row()
+            op = row.operator("export_ifc.bim", icon="EXPORT", text="Save Project")
+            op.should_save_as = False
+            return
+
         self.props = context.scene.DocProperties
 
         if not self.props.is_editing_drawings:
@@ -221,6 +229,14 @@ class BIM_PT_schedules(Panel):
         if not SchedulesData.is_loaded:
             SchedulesData.load()
 
+        if not SchedulesData.data["has_saved_ifc"]:
+            row = self.layout.row()
+            row.label(text="Project Not Yet Saved", icon="ERROR")
+            row = self.layout.row()
+            op = row.operator("export_ifc.bim", icon="EXPORT", text="Save Project")
+            op.should_save_as = False
+            return
+
         self.props = context.scene.DocProperties
 
         if not self.props.is_editing_schedules:
@@ -264,6 +280,14 @@ class BIM_PT_sheets(Panel):
         if not SheetsData.is_loaded:
             SheetsData.load()
 
+        if not SheetsData.data["has_saved_ifc"]:
+            row = self.layout.row()
+            row.label(text="Project Not Yet Saved", icon="ERROR")
+            row = self.layout.row()
+            op = row.operator("export_ifc.bim", icon="EXPORT", text="Save Project")
+            op.should_save_as = False
+            return
+
         self.props = context.scene.DocProperties
 
         if not self.props.is_editing_sheets: