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Better handling for daily + byday rules.

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This commit is contained in:
Andrew McMillan 2008-10-26 22:15:39 +13:00
parent 178151b384
commit 895f515838
1 changed files with 11 additions and 2 deletions
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13
dba/caldav_functions.sql
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@ -182,9 +182,18 @@ BEGIN
loopcount := 100; -- Desirable to stop an infinite loop if there is something we cannot handle
LOOP
-- RAISE NOTICE ''Testing date: %'', our_answer;
IF frequency = ''WEEKLY'' THEN
IF frequency = 'DAILY' THEN
IF byday IS NOT NULL THEN
LOOP
dow = substring( to_char( our_answer, 'DY' ) for 2);
EXIT WHEN byday ~* dow;
-- Increment for our next time through the loop...
our_answer := our_answer + (length::text || units)::interval;
END LOOP;
END IF;
ELSIF frequency = ''WEEKLY'' THEN
-- Weekly repeats are only on specific days
-- I think this is not really right, since a WEEKLY on MO,WE,FR should
-- This is really not right, since a WEEKLY on MO,WE,FR should
-- occur three times each week and this will only be once a week.
dow = substring( to_char( our_answer, ''DY'' ) for 2);
ELSIF frequency = ''MONTHLY'' THEN