date_format() expects parameter 1 to be DateTime [#275296]

i'v just installed both 2.x-dev versions (calendar and date) and if i enable the calendar view and wanna visit the /calendar site, the watchdog gets filed with millions(!! -i am not kidding.. i need to kill the sql-process) of these messages

date_format() expects parameter 1 to be DateTime, null given in /var/www/www.trekking-blog.de/modules/calendar/calendar.inc in Zeile 160.

about row 160 of calendar.inc is:

function calendar_build_calendar($view, $items, $params) {
// Remove nodes outside the selected date range.
$values = array();
foreach ($items as $delta => $item) {
if (($item->calendar_start_date >= $view->min_date && $item->calendar_start_date <= $view->max_date)
|| ($item->calendar_end_date >= $view->min_date && $item->calendar_end_date <= $view->max_date)) {
$values[date_format($item->calendar_start_date, 'Y-m-d')][date_format($item->calendar_start_date, 'Y-m-d')][] = $item; <-- this is row 160 -->
}
}

i get this error for ~ 10 rows..

how can we get this fixed? it doesnt work at all...

the view used is the "standard" /calendar .. which comes with the module.. so, nothing special.

thanks
Andreas

Comment	File	Size	Author
#3	modules.png	890.13 KB	Goose4all

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Comments

Comment #1

KarenS CreditAttribution: KarenS commented 26 June 2008 at 16:03

Status:

Active

» Postponed (maintainer needs more info)

You used the standard calendar with the node.changed date? You didn't change it to use a different date? Something about your environment is different than mine because it works perfectly for me. I don't need to know what line 160 of the code says, I can figure that out, I need to know how to reproduce your situation. It doesn't do this out of the box on a clean install.

If you changed the calendar to use a date other than node.changed, I need to know what kind of date you are using. What modules do you have enabled? Are you using Calendar iCal? What version of PHP are you using?

If you made *any* changes to the standard calendar, I need to see an export of the calendar.

What version of Views are you using? If this module was changed to use a CCK date field, what version of CCK are you using?

Comment #2

KarenS CreditAttribution: KarenS commented 26 June 2008 at 16:34

Status:

Postponed (maintainer needs more info)

» Closed (duplicate)

Never mind, I forgot which version we were using. In the D5 version you have to add a date field to the calendar or it won't work. There is an issue about this already at http://drupal.org/node/247215. The errors will go away when you add a date field to the view, but I need to either add a default field or force a validation error if there's not one there.