RE: Calendar Logic Help

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> -----Original Message-----
> From: Floyd Resler [mailto:fresler@xxxxxxxxxxxxx]
> Sent: Wednesday, October 20, 2010 9:17 AM
> To: PHP
> Subject:  Calendar Logic Help
> 
> I'm having problems getting my head around some login for a calendar.
> Specifically, the problem is drawing weekly views for events that span
> multiple days.  I've gotten it so that if an event starts in the week
being
> viewed, the days draw correctly for the remainder of the week.  However,
if
> the event goes into the next week, its start date is now outside my date
> range and so it doesn't display.  I know how to say the logic, I'm not
sure
> how to write it!  The logic would be: if any date between the start and
end
> dates of the event are within the week being displayed, show the event.
I'd
> like to put the logic into my MySQL query so I don't have to get all
events
> from the calendar to see what should be displayed.  Any ideas?
> 
> Thanks!
> Floyd
> 

It's hard to give you hints without knowing some actual PHP code and SQL
table columns but here goes:

PHP logic: $event['startDate'] <= $weekEnd && $event['endDate'] >=
$weekStart

Query logic: SELECT * FROM event_table WHERE `start_date` <= @weekEnd and
`end_date` >= @weekStart

week* is the week being viewed.  You may have to use the DateTime class or
one of the date_* functions to compare the date for the PHP logic.  @ is the
input query parameter.  This assumes you have table columns for the event:
start_date & end_date.  Adjust the query as needed for multi table joins.

Regards,
Tommy


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