Improved date calculations during import and editing ensure that start / finish dates are always on working days.

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

@@ -126,7 +126,7 @@ def updateTaskduration(self, context):
     )
     Data.load(IfcStore.get_file())
     if props.active_task_id == self.ifc_definition_id:
-        attribute = props.task_attributes.get("Duration")
+        attribute = props.task_time_attributes.get("Duration")
         attribute.string_value = self.duration
     bpy.ops.bim.load_task_properties(task=props.active_task_id)
 

src/ifcopenshell-python/ifcopenshell/api/sequence/edit_task_time.py

@@ -12,11 +12,27 @@ class Usecase:
 
     def execute(self):
         # If the user specifies both an end date and a duration, the duration takes priority
-        if "ScheduleDuration" in self.settings["attributes"].keys() and "ScheduleFinish" in self.settings["attributes"].keys():
+        if (
+            "ScheduleDuration" in self.settings["attributes"].keys()
+            and "ScheduleFinish" in self.settings["attributes"].keys()
+        ):
             del self.settings["attributes"]["ScheduleFinish"]
-        if "ActualDuration" in self.settings["attributes"].keys() and "ActualFinish" in self.settings["attributes"].keys():
+        if (
+            "ActualDuration" in self.settings["attributes"].keys()
+            and "ActualFinish" in self.settings["attributes"].keys()
+        ):
             del self.settings["attributes"]["ActualFinish"]
 
+        duration_type = self.settings["attributes"].get("DurationType", self.settings["task_time"].DurationType)
+        if "ScheduleFinish" in self.settings["attributes"]:
+            self.settings["attributes"]["ScheduleFinish"] = ifcopenshell.util.sequence.get_soonest_working_day(
+                self.settings["attributes"]["ScheduleFinish"], duration_type, self.get_calendar()
+            )
+        if "ScheduleStart" in self.settings["attributes"]:
+            self.settings["attributes"]["ScheduleStart"] = ifcopenshell.util.sequence.get_soonest_working_day(
+                self.settings["attributes"]["ScheduleStart"], duration_type, self.get_calendar()
+            )
+
         for name, value in self.settings["attributes"].items():
             if value:
                 if "Start" in name or "Finish" in name or name == "StatusTime":
@@ -37,21 +53,13 @@ class Usecase:
             self.calculate_duration()
 
     def calculate_finish(self):
-        start = ifcopenshell.util.date.ifc2datetime(self.settings["task_time"].ScheduleStart)
+        finish_date = ifcopenshell.util.sequence.get_finish_date(
-        current_date = datetime.date(start.year, start.month, start.day)
+            ifcopenshell.util.date.ifc2datetime(self.settings["task_time"].ScheduleStart),
-        duration = ifcopenshell.util.date.ifc2datetime(self.settings["task_time"].ScheduleDuration).days
+            ifcopenshell.util.date.ifc2datetime(self.settings["task_time"].ScheduleDuration),
-
+            self.settings["task_time"].DurationType,
-        calendar = self.get_calendar()
+            self.get_calendar(),
-
+        )
-        while duration >= 0:
+        self.settings["task_time"].ScheduleFinish = ifcopenshell.util.date.datetime2ifc(finish_date, "IfcDateTime")
-            if self.settings["task_time"].DurationType == "ELAPSEDTIME" or not calendar:
-                duration -= 1
-            elif ifcopenshell.util.sequence.is_working_day(current_date, calendar):
-                duration -= 1
-            current_date += datetime.timedelta(days=1)
-
-        current_date -= datetime.timedelta(days=1)
-        self.settings["task_time"].ScheduleFinish = ifcopenshell.util.date.datetime2ifc(current_date, "IfcDateTime")
 
     def calculate_duration(self):
         start = ifcopenshell.util.date.ifc2datetime(self.settings["task_time"].ScheduleStart)

src/ifcp6/ifcp6/p62ifc.py

@@ -70,7 +70,7 @@ class P62Ifc:
             exceptions = {}
             holiday_or_exceptions = calendar.find("pr:HolidayOrExceptions", self.ns)
             holiday_or_exception = []
-            if holiday_or_exceptions:
+            if holiday_or_exceptions is not None:
                 holiday_or_exception = holiday_or_exceptions.findall("pr:HolidayOrException", self.ns)
             for exception in holiday_or_exception:
                 d = datetime.datetime.fromisoformat(exception.find("pr:Date", self.ns).text).date()
@@ -337,6 +337,15 @@ class P62Ifc:
         )
         task_time = ifcopenshell.api.run("sequence.add_task_time", self.file, task=activity["ifc"])
         calendar = self.calendars[activity["CalendarObjectId"]]
+        # Seems intermittently crashy - can we investigate for larger files?
+        ifcopenshell.api.run(
+            "control.assign_control",
+            self.file,
+            **{
+                "relating_control": calendar["ifc"],
+                "related_object": activity["ifc"],
+            },
+        )
         ifcopenshell.api.run(
             "sequence.edit_task_time",
             self.file,
@@ -353,15 +362,6 @@ class P62Ifc:
                 else None,
             },
         )
-        # Seems intermittently crashy - can we investigate for larger files?
-        ifcopenshell.api.run(
-            "control.assign_control",
-            self.file,
-            **{
-                "relating_control": calendar["ifc"],
-                "related_object": activity["ifc"],
-            },
-        )
 
     def create_rel_sequences(self):
         self.sequence_type_map = {