Cannot use object of type stdClass as array in /sites/all/modules/date/date_api.module

Hi Karen,
Sorry for the vague posting, I must have been really frazzled that day. I just upgrading to Calendar 5.x-2.x-dev (2009-Mar-27) and Date 5.x-2.x-dev (2009-Mar-27) again to see if the latest changes have corrected this error. Going to my calendar page I get the following error on a white screen.

Fatal error: Cannot use object of type stdClass as array in /sites/all/modules/date/date_api.module on line 1445

I have four iCal calendars linked to this page and nothing else. I'm running Drupal 5.16 wih PHP 5.2.
I'm also getting this error on my recent log entries.

Object of class stdClass could not be converted to string in /sites/all/modules/date/date_api.module on line 1442.

Could this be due to my configurations somehow, since it's occurring in the date_format_order function? Let me know if you need more information. Oh, and if I don't have any ical calendars linked, the error message doesn't occur. That may be obvious but just in case.

Thanks for any help on this.

I've updated to Date 5.x 2.6 and the problem still persists.

Fatal error: Cannot use object of type stdClass as array in /sites/all/modules/date/date_api.module on line 1445

Looking at other posts with similar problems with other modules I noticed a pattern.

// using just examples here
$variable = $data['value'];
// Which they seem to always change to 
$variable = $data->value;

@1441 /sites/all/modules/date/date_api.module

function date_format_order($format) {
  $max = strlen($format);
  $order = array();
  for ($i = 0; $i <= $max; $i++) {
    $c = $format[$i]; // line 1445
    switch ($c) {
      case 'd':
      case 'j':
        $order[] = 'day';
        break;
      case 'F':
      case 'M':
      case 'm':
      case 'n':
        $order[] = 'month';
        break;
      case 'Y':
      case 'y':
        $order[] = 'year';
        break;
      case 'g':
      case 'G':
      case 'h':
      case 'H':
        $order[] = 'hour';
        break;
      case 'i':
        $order[] = 'minute';
        break;
      case 's':
        $order[] = 'second';
        break;
    }
  }
  return $order;
}

if I change lin 1445

-  $c = $format[$i];
+  $c = $format->$i;

I get this error

Fatal error: Cannot use string offset as an array in /sites/all/modules/date/date/date.theme on line 332

switching 332 from

-   $increment = $field['widget']['increment'];
+   $increment = $field->widget['increment'];

Allows the calendar to appear. This probably isn't even close to being a fix but it does stop the fatal errors.

This seems like a tricky one to explain. I've updated to date and calendar 2.7. I have a calendar imported using feed api that wasn't working right before but now is. I have to have two datestamp fields for the start and end of each event though to make it work. That's another issue altogether. So after I to link to an iCal calendar using the iCal feature in Calendar Setup I get the following error when navigating to the calendar page.

Fatal error: Cannot use object of type stdClass as array in .../sites/all/modules/date/date_api.module on line 1455

Removing the linked iCal causes this error to go away. Could this be a conflict with the feed module? The Calendar iCal feature doesn't use any Date CCk fields does it? Let me know what other info you need to assist in your replication.

Thanks

Hey Karen,

Still having this error show up. I recently upgraded to Calendar 5.x-2.x-dev (2009-May-06) and Date 5.x-2.x-dev (2009-May-06) and received the same error (in drupals error log) when trying to view my calendar.view. I cleared the views cache and saved the date fields again I also cleared my browser cache just in case. I checked the iCal setup in the calendar settings page and that all checked out. I went ahead and changed those two lines again that I had mentioned above.

date_api.module @ line 1467
-    $c = $format[$i];
+   $c = $format->$i;

&
date.theme @ line 333
-  $increment = $field['widget']['increment'];
+  $increment = $field->widget['increment'];

This again stopped the error messages and displayed my calendar view with all my linked iCal calendars showing up except for the DTSTART & DTEND information. Again this isn't a feed and I am not mapping any of the iCal values to my CCK fields. I am simply using the iCal feature within the Calendar Setup page to display externally published iCal calendars.

If you still can not recreate this error perhaps you might have a suggestion for other places I could be looking for the cause of this problem? Perhaps another module is some how effecting this new version? If it would help I could list all the modules I have currently active.

Thanks

Well sometimes taking a break and then returning to a problem can be all you need to do. Upon revisiting this issue I remembered that I had done some custom theming for the calendar module. Doing a quick cross comparison I found that the element $field had been added to many of the functions that I had altered in my template file. Specifically theme_calendar_ical_field, theme_calendar_ical_node, and theme_calendar_date_combo. After adding '$field' to these and switching the date_api.module and date.theme back to their original state my calendars appeared just fine.

I'll leave this up, in case others find themselves making the same silly mistake.