The issue is not when a cal-item is added. But when it is displayed.
Every cal-item is attached with a timespan interval (start_date and end_date). Always!
So, if we just change the filter that makes it to be displayed in the respective start_date to end_date, for example in the query "select_all_day_items"
select
to_char(start_date, 'YYYY-MM-DD HH24:MI:SS') as ansi_start_date,
to_char(end_date, 'YYYY-MM-DD HH24:MI:SS') as ansi_end_date,
to_number(to_char(start_date,'HH24'),'90') as start_hour,
to_number(to_char(end_date,'HH24'),'90') as end_hour,
to_number(to_char(end_date,'MI'),'90') as end_minutes,
coalesce(e.name, a.name) as name,
coalesce(e.status_summary, a.status_summary) as status_summary,
coalesce(e.description, a.description) as description,
e.event_id as item_id,
(select type from cal_item_types where item_type_id= ci.item_type_id) as item_type,
cals.calendar_id,
cals.calendar_name,
cals.package_id as cal_package_id,
(select count(1) from attachments where object_id=e.event_id) as num_attachments
$additional_select_clause
from cal_items ci,
acs_events e,
timespans s,
time_intervals t,
acs_activities a,
calendars cals
where e.timespan_id = s.timespan_id
and s.interval_id = t.interval_id
and e.activity_id = a.activity_id
and end_date between $interval_limitation_clause
and ci.cal_item_id = e.event_id
and cals.calendar_id = ci.on_which_calendar
and e.event_id = ci.cal_item_id
$filter_by_clause
$additional_limitations_clause
$calendars_clause
$order_by_clause
Attention to
and start_date between $interval_limitation_clause
and switch it to
and end_date between $interval_limitation_clause
Then we solve the issue.
Very easy! ;)