I have a specific requirement of showing categories of selected menu language only. So in my component, I have the field declared as below.

<field name="catid" type="categoryedit" label="JCATEGORY" description="JFIELD_CATEGORY_DESC" class="inputbox input-block-level" required="true"></field>

And in my Model, I am setting the field attribute dynamically based on the menu language.

public function getForm ($data = array(), $loadData = true)
  $language = JFactory::getLanguage()->getTag();
  $form->setFieldAttribute('catid', 'language', $language);

It works perfectly fine. However the only problem is it shows only the list which are meant for the selected language only, for example en-GB will show only list of values which are assigned to the language en-GB.

I need to display all the field values which are assigned to the selected language as well as "All" (or "*", i.e. no language selected).

I cannot set two values to the same field attribute, setting it two time overwrite fist.

$form->setFieldAttribute('catid', 'language', '*');

This doesn't work at all

$form->setFieldAttribute('catid', 'language', $language.', *');

Anyone has any idea how can I do this?

  • Can you show the custom Form Field code i.e. categoryedit.php? May 12, 2015 at 10:43

2 Answers 2


After a lot of research I couldn't find any possible solution to this. So I overridden categoryedit field type and changed the following code in getOptions method (the field can be created in your component's models/fields directory so that it can be referenced in your form xml)

// Filter language
if (!empty($this->element['language']))
    $subQuery->where('language = ' . $db->quote($this->element['language']));


// Filter language
$languages = array(JFactory::getLanguage()->getTag(), '*');
if (!empty($this->element['language']))
    $languages[] = $this->element['language'];

$subQuery->where('language IN (' . implode(',', $db->quote($languages)).')');

Hope this helps anyone looking for similar solution.

  • Hi there! Do you know why when I want to use the categoryedit field in my component with the option to allow Adding new categories, it requires to declare in the xml the allowAdd="true", while the Joomla core components do not have to declare this and work without even mentioning the allowAdd?
    – FFrewin
    Jan 27, 2018 at 19:57
  • That's because the flag is set manually. Example - administrator/components/com_content/models/article.php, function preprocessForm, $form->setFieldAttribute('catid', 'allowAdd', 'true');
    – Nagarjun
    Jan 29, 2018 at 10:40

You can just change your xml (models/forms/yourform.xml) field definition to include the extra option like this:

<field name="catid" type="contentlanguage" label="yourlabel"
<option value="*">JALL</option></field>

JALL will be automatically translated to your language "All" word.

Hope that helps

  • Thank you for answering, however you misunderstood the question. I do not want to show another category name, rather categories with language set to All. Hope you understand.
    – Nagarjun
    May 12, 2015 at 2:53
  • 1
    Now I see what you mean. First of all you are using a custom field (categoryedit) so you should check in the "categoryedit.php" to see how to handle this. By the way, have you tried to pass an array like this $form->setFieldAttribute('catid', 'language', array('en-GB','*')) ?
    – itsam
    May 12, 2015 at 12:08
  • This is not a custom field, it is standard Joomla field. Yes, I tried the array and it gives error " Warning: It is not yet possible to assign complex types to attributes". And checked in categoryedit.php and has code if (!empty($this->element['language'])) { $subQuery->where('language = ' . $db->quote($this->element['language'])); } I believe this cannot be done as I see the above code is not designed to handle this. I am overriding the field now.
    – Nagarjun
    May 12, 2015 at 17:37

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