Im trying to load custom field in my backend component default view (default.php):
JFormHelper::addFieldPath(JPATH_COMPONENT . '/models/fields');
$productType = JFormHelper::loadFieldType('ProductType',false);
$productTypeOptions = $productType->getOptions();
But I get a fatal error:
Fatal error: Call to a member function children() on a non-object in xxx\libraries\joomla\form\fields\list.php on line 89
When I load this custom field into the form, everything works perfectly.
Any ideas?
Make sure you are adding the correct path to the fields
In your $productType->getOptions() function,
Try removing:
$options = array_merge(parent::getOptions(), $options);
Well, I tried to expand my fellow above idea but it seemed an inappropiate edit, I put it here then:
This worked for me. In your getOptions, if you have something like the getOptions found here (http://docs.joomla.org/How_to_add_custom_filters_to_component_admin), you´ll have this line:
$options = array_merge(parent::getOptions(), $options);
This is the one that makes the error. Why? Well, I´m not sure. If you see the related file, you´ll find this:
foreach ($this->element->children() as $option)
So the problem is that you are calling children() on the model parent that it seems is not initialized. Why the array_merge is needed? Is discussed here (http://forum.joomla.org/viewtopic.php?f=626&t=782877)
My explanation is more like a dirty blind patch, but hope it helps to move forward.
