The function K2ModelExtraFields::getGroups limits the query to 20 items, if there are more than 20 extrafields groups it does not show all groups correctly. Then a user modifies a category and the extrafield group points to none loosing its value.

 

How to solve this:

 

file administrator/components/com_k2/model/extrafields.php

line 227:

function getGroups() {

to

function getGroups($clear = false) {

line 232:

$limit = $mainframe->getUserStateFromRequest('global.list.limit', 'limit', $mainframe->getCfg('list_limit'), 'int');

to

$limit = ($clear===true)? 0: $mainframe->getUserStateFromRequest('global.list.limit', 'limit', $mainframe->getCfg('list_limit'), 'int');

 

file administrator/components/com_k2/views/category/view.html.php

line 46:

$groups = $extraFieldsModel->getGroups();

to

$groups = $extraFieldsModel->getGroups(true);

 

file administrator/components/com_k2/views/extrafields/view.html.php

line 55:

$extraFieldGroups = $model->getGroups();

to

$extraFieldGroups = $model->getGroups(true);

 

file administrator/components/com_k2/views/extrafield/view.html.php

line 36:

$uniqueGroups= $extraFieldModel->getGroups();

to

$uniqueGroups= $extraFieldModel->getGroups(true);

 

file administrator/components/com_k2/views/category/view.html.php

line 46:

$groups = $extraFieldsModel->getGroups();

to

$groups = $extraFieldsModel->getGroups(true);

 

That's all folks!