sequence.add_date_time

API method to create IfcDateAndTime / IfcDatetime in schema agnostic way.

src/ifcopenshell-python/ifcopenshell/api/cost/add_cost_schedule.py

@@ -17,7 +17,7 @@
 # along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
 
 import ifcopenshell.api.root
-import ifcopenshell.util.date
+import ifcopenshell.api.sequence
 from datetime import datetime
 from typing import Optional
 
@@ -58,17 +58,5 @@ def add_cost_schedule(
         predefined_type=predefined_type,
         name=name,
     )
-    if file.schema == "IFC2X3":
+    cost_schedule.UpdateDate = ifcopenshell.api.sequence.add_date_time(file, datetime.now())
-        cost_schedule.UpdateDate = createIfcDateAndTime(file, datetime.now())
-    else:
-        cost_schedule.UpdateDate = ifcopenshell.util.date.datetime2ifc(datetime.now(), "IfcDateTime")
     return cost_schedule
-
-
-def createIfcDateAndTime(file: ifcopenshell.file, dt: datetime):
-    ifc_dt = file.create_entity("IfcDateAndTime")
-    ifc_dt.DateComponent = file.create_entity(
-        "IfcCalendarDate", **ifcopenshell.util.date.datetime2ifc(dt, "IfcCalendarDate")
-    )
-    ifc_dt.TimeComponent = file.create_entity("IfcLocalTime", **ifcopenshell.util.date.datetime2ifc(dt, "IfcLocalTime"))
-    return ifc_dt

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

@@ -23,6 +23,7 @@ managing recurring facility maintenance schedules.
 """
 
 from .. import wrap_usecases
+from .add_date_time import add_date_time
 from .add_task import add_task
 from .add_task_time import add_task_time
 from .add_time_period import add_time_period
@@ -70,6 +71,7 @@ from .unassign_sequence import unassign_sequence
 wrap_usecases(__path__, __name__)
 
 __all__ = [
+    "add_date_time",
     "add_task",
     "add_task_time",
     "add_time_period",

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

@@ -0,0 +1,59 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import ifcopenshell.util.date
+from datetime import datetime
+from typing import Union
+
+
+def add_date_time(file: ifcopenshell.file, dt: datetime) -> Union[str, ifcopenshell.entity_instance]:
+    """Add a new date time.
+
+    Depending on ``file``'s schema method will:
+    - IFC2X3 - create IfcDateAndTime entity
+    - IFC4+  - create IfcDatetime formatted string
+
+    :param dt: datetime to convert to IFC.
+    :return: IfcDateAndTime entity or IfcDatetime string.
+
+    Example:
+
+    .. code:: python
+
+        dt = datetime(2025, 3, 1, 12, 31, 24)
+        datetime_ifc = ifcopenshell.api.sequence.add_date_time(self.file, dt)
+
+        # IFC2X3: #1=IfcDateAndTime(#2,#3)
+        # IFC4+: "2025-03-01T12:31:24"
+        print(datetime_ifc)
+
+    """
+
+    if file.schema == "IFC2X3":
+        ifc_dt = file.create_entity("IfcDateAndTime")
+        calendar_date_data = ifcopenshell.util.date.datetime2ifc(dt, "IfcCalendarDate")
+        assert isinstance(calendar_date_data, dict)
+        ifc_dt.DateComponent = file.create_entity("IfcCalendarDate", **calendar_date_data)
+        local_time_data = ifcopenshell.util.date.datetime2ifc(dt, "IfcLocalTime")
+        assert isinstance(local_time_data, dict)
+        ifc_dt.TimeComponent = file.create_entity("IfcLocalTime", **local_time_data)
+        return ifc_dt
+
+    dt_str = ifcopenshell.util.date.datetime2ifc(dt, "IfcDateTime")
+    assert isinstance(dt_str, str)
+    return dt_str

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

@@ -19,7 +19,7 @@
 import ifcopenshell.api.root
 import ifcopenshell.api.project
 import ifcopenshell.api.owner.settings
-import ifcopenshell.util.date
+import ifcopenshell.api.sequence
 from datetime import datetime, time
 from typing import Optional, Union
 
@@ -65,11 +65,11 @@ def add_work_plan(
         predefined_type=predefined_type,
         name=name,
     )
-    work_plan.CreationDate = ifcopenshell.util.date.datetime2ifc(datetime.now(), "IfcDateTime")
+    work_plan.CreationDate = ifcopenshell.api.sequence.add_date_time(file, datetime.now())
     user = ifcopenshell.api.owner.settings.get_user(file)
     if user:
         work_plan.Creators = [user.ThePerson]
-    work_plan.StartTime = ifcopenshell.util.date.datetime2ifc(start_time, "IfcDateTime")
+    work_plan.StartTime = ifcopenshell.api.sequence.add_date_time(file, datetime.now())
 
     context = file.by_type("IfcContext")[0]
     ifcopenshell.api.project.assign_declaration(

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

@@ -20,7 +20,7 @@ import ifcopenshell.api.root
 import ifcopenshell.api.project
 import ifcopenshell.api.aggregate
 import ifcopenshell.api.owner.settings
-import ifcopenshell.util.date
+import ifcopenshell.api.sequence
 from datetime import time
 from datetime import datetime
 from typing import Union, Optional
@@ -81,17 +81,11 @@ def add_work_schedule(
         predefined_type=predefined_type,
         name=name,
     )
-    if file.schema == "IFC2X3":
+    work_schedule.CreationDate = ifcopenshell.api.sequence.add_date_time(file, datetime.now())
-        work_schedule.CreationDate = createIfcDateAndTime(file, datetime.now())
-    else:
-        work_schedule.CreationDate = ifcopenshell.util.date.datetime2ifc(datetime.now(), "IfcDateTime")
     user = ifcopenshell.api.owner.settings.get_user(file)
     if user:
         work_schedule.Creators = [user.ThePerson]
-    if file.schema == "IFC2X3":
+    work_schedule.StartTime = ifcopenshell.api.sequence.add_date_time(file, start_time)
-        work_schedule.StartTime = createIfcDateAndTime(file, start_time)
-    else:
-        work_schedule.StartTime = ifcopenshell.util.date.datetime2ifc(start_time, "IfcDateTime")
     if object_type:
         work_schedule.ObjectType = object_type
     if work_plan:
@@ -110,12 +104,3 @@ def add_work_schedule(
             relating_context=context,
         )
     return work_schedule
-
-
-def createIfcDateAndTime(file: ifcopenshell.file, dt: datetime):
-    ifc_dt = file.create_entity("IfcDateAndTime")
-    ifc_dt.DateComponent = file.create_entity(
-        "IfcCalendarDate", **ifcopenshell.util.date.datetime2ifc(dt, "IfcCalendarDate")
-    )
-    ifc_dt.TimeComponent = file.create_entity("IfcLocalTime", **ifcopenshell.util.date.datetime2ifc(dt, "IfcLocalTime"))
-    return ifc_dt

src/ifcopenshell-python/test/api/sequence/test_add_date_time.py

@@ -0,0 +1,44 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import ifcopenshell.util
+import ifcopenshell.util.date
+import test.bootstrap
+import ifcopenshell.api.sequence
+from datetime import datetime
+
+
+class TestAddDateTime(test.bootstrap.IFC4):
+    def test_run(self):
+        dt = datetime(2025, 3, 1, 12, 31, 24)
+        res = ifcopenshell.api.sequence.add_date_time(self.file, dt)
+        if self.file.schema == "IFC2X3":
+            assert isinstance(res, ifcopenshell.entity_instance)
+            assert res.is_a("IfcDateAndTime")
+            assert ifcopenshell.util.date.ifc2datetime(res) == dt
+            print(res)
+        else:
+            assert res == "2025-03-01T12:31:24"
+
+
+class TestAddDateTimeIFC2X3(test.bootstrap.IFC2X3, TestAddDateTime):
+    pass
+
+
+class TestAddDateTimeIFC4X3(test.bootstrap.IFC4X3, TestAddDateTime):
+    pass