496528 - Multiple alarms wrongly assigned to recurrence events

Status: RESOLVED DUPLICATE of bug 494140

(Calendar :: Alarms, defect)

Description

[Stefan Bertels]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10
Build Identifier: Calendar/1.0pre

Due to entry #353492 there is a multiple alarm feature in the calendar software. This feature is buggy in regard of recurrence (repeating) events. If you use exceptions (e.g. change one item in the event series to other alarms) Sunbird cannot distinguish which alarms apply to which events in the series.

Looking into cal_alarms table there is nothing one can use to identify the corresponding item in cal_events or cal_recurrence -- all have the same id.

Reproducible: Always

Steps to Reproduce:
1. Create an recurrence item with two alarms (15min and 10min before)
2. Change one item in the series and change alarms to "5min before"
3. Now move the 10min alarm from base entry to exception entry

Depending on the order of the three alarm values (might change it in the steps above) you will get the same database content.
Actual Results:  
wrong alarms

Expected Results:  
correct alarms

Comment 1

[Stefan Sitter [:ssitter]]

Identical to Bug 494140?

Comment 2

[Stefan Bertels]

Maybe. It is at least related. The problem is the data format in cal_alarms. There seems to be no way to detect which alarms are related to which event/exception (for recurring events). Sunbird holds some information in memory so you will see the real problem not before restart.

I think it is ok to mark this as duplicate.