I have a new, default, unmodified version of joomla 2.5 installed along with k2.

I'm using this as a demo site to teach myself k2.

Overall everything works great, but whenever I attempt to edit an item as a front end user, my screen goes white when I save the item and I get this php error:

Fatal error: Call to a member function getSearchValue() on a non-object in /homepages/7/d123968617/htdocs/public_html/clients/administrator/components/com_k2/models/item.php on line 721

FYI, I can edit and save an item as a back-end admin without any trouble.

I am developing locally using WAMP server on a windows vista machine.

I thought the problem might be with my local server setup so I uploaded everything to a hosting account at 1and1.com. I get the exact same error on the hosting server.

I've searched the forums and run google searches, but nothing I've found solves my problem.

Any help would really be appreciated.

I should also mention that I did a complete reinstall of both Joomla and K2 and that didn't solve the problem.

Another note...this only happens if I attempt to edit then save an existing item.

I can create and save new items without a problem.

And more info...

I commented out the foreach block of code that begins on line 719 in

administrator > components > com_k2 > models > item.php

That solved my problem. But I don't know what the repercussions are for commenting out that code. It solved my immediate problem, but may create more.

Here's the code block as it is now, with my change:

require_once (JPATH_COMPONENT_ADMINISTRATOR.DS.'lib'.DS.'JSON.php');
$json = new Services_JSON;
$row->extra_fields = $json->encode($objects);

$extraFieldModel = K2Model::getInstance('ExtraField', 'K2Model');
$row->extra_fields_search = '';
/* BEGIN MY EDIT HERE TO DISABLE THIS CODE
foreach ($objects as $object)
{
$row->extra_fields_search .= $extraFieldModel->getSearchValue($object->id, $object->value);
$row->extra_fields_search .= ' ';
}
*/ END MY EDIT HERE
//Tags
if ($use

You should not make changes to the file in the k2 core. All changes will be lost when you upgrade.
Try setting javascript in the k2 options layout tab at the top on your localhost version to load local copy and see if that may be the problem.

Thanks William.

I am aware of the dangers of editing core files, but I need to put a band-aid on this so I could keep moving.

I tried your suggestion. In Parameters, I went to Layout & Views and change the jquery library handling from

"Load v1.8.x latest (remote copy)

To

"Load v1.8.2 (local copy)

I logged out a frontend user and logged back in.

No change. i still get the error.

I also tried changing "Backend jQuery & jWuery UI handling" to local, but that had no effect.

Any other ideas?

I tested and am getting the same error/s with both the menu item and the add item in this category link
The item is saved even though it throws the error

Yea, I've noticed the same thing. The data gets saved, even though the error occurs.

So are you saying that you just discovered this error or did you manipulate your set up in some way to duplicate the error?

Ultimately I'd like to get this resolved without the core hack that I did, but the system has to function, and appear to function properly, when I turn everything over to my client.

I guess the worst case scenario is to leave my core hack in place, make note of it, and hope the hack doesn't create other problems.

Do you think this is a bug? Should I report it as a bug?

I tested in both 2.5 and 3.0 with k2 2.6.1
Got the same error
Applied the hack commenting out the foreach loop complely
and the error went away, but in j30 site the save and close button also went away requiring you to click the x to close the screen.
I think its a bug

yep same here. I was talking about this in another topic: getk2.org/community/New-to-K2-Ask-here-first/163350-260-update-Fatal-error--modelsitemphp

Can you please also check if your tags and extra fields are working? If they appear on the article you save... only new articles, not old ones.

Thanks