def _clone_timetable(self, new_event):
offset = new_event.start_dt - self.old_event.start_dt
# no need to copy the type; it's set automatically based on the object
attrs = get_simple_column_attrs(TimetableEntry) - {'type', 'start_dt'}
break_strategy = defaultload('break_')
break_strategy.joinedload('own_venue')
break_strategy.joinedload('own_room').lazyload('*')
query = (self.old_event.timetable_entries.options(
joinedload('parent').lazyload('*'), break_strategy).order_by(
TimetableEntry.parent_id.is_(None).desc()))
# iterate over all timetable entries; start with top-level
# ones so we can build a mapping that can be used once we
# reach nested entries
entry_map = {}
for old_entry in query:
entry = TimetableEntry()
entry.start_dt = old_entry.start_dt + offset
entry.populate_from_attrs(old_entry, attrs)
if old_entry.parent is not None:
entry.parent = entry_map[old_entry.parent]
if old_entry.session_block is not None:
entry.session_block = self._session_block_map[
old_entry.session_block]
if old_entry.contribution is not None:
entry.contribution = self._contrib_map[old_entry.contribution]
if old_entry.break_ is not None:
entry.break_ = self._clone_break(old_entry.break_)
new_event.timetable_entries.append(entry)
entry_map[old_entry] = entry
def _clone_timetable(self, new_event):
offset = new_event.start_dt - self.old_event.start_dt
# no need to copy the type; it's set automatically based on the object
attrs = get_simple_column_attrs(TimetableEntry) - {'type', 'start_dt'}
break_strategy = defaultload('break_')
break_strategy.joinedload('own_venue')
break_strategy.joinedload('own_room').lazyload('*')
query = (self.old_event.timetable_entries
.options(joinedload('parent').lazyload('*'),
break_strategy)
.order_by(TimetableEntry.parent_id.is_(None).desc()))
# iterate over all timetable entries; start with top-level
# ones so we can build a mapping that can be used once we
# reach nested entries
entry_map = {}
for old_entry in query:
entry = TimetableEntry()
entry.start_dt = old_entry.start_dt + offset
entry.populate_from_attrs(old_entry, attrs)
if old_entry.parent is not None:
entry.parent = entry_map[old_entry.parent]
if old_entry.session_block is not None:
entry.session_block = self._session_block_map[old_entry.session_block]
if old_entry.contribution is not None:
entry.contribution = self._contrib_map[old_entry.contribution]
if old_entry.break_ is not None:
entry.break_ = self._clone_break(old_entry.break_)
new_event.timetable_entries.append(entry)
entry_map[old_entry] = entry
