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I have followed the article on the Joomla Developer Sites to create a sorting filter for my list (https://docs.joomla.org/Adding_sortable_columns_to_a_table_in_a_component).

But I cannot get it work. Step 2 explains how to get the State of the sorting. But the state is NULL after calling get GetState-Method. Here is the Method I have used.
$state = $this->get('State');

Best regards tria1312

2

The meaning of $state = $this->get('State'); is $state = $model->getState(); where $model is the current model of your view.

If your model is extending from JModelList, all your state variables are automatically populated (provided correct values present in request). Otherwise populate the state in your model's populateState function.

protected function populateState ($ordering = 'sort_order', $direction = 'ASC')
{
  $orderCol = $app->input->get('filter_order', $ordering);
  $this->setState('list.ordering', $orderCol);
}

Note: Never call getState function in populateState, which creates infinite loop.

  • Does it also work with the JModelLegacy Class? – tria1312 Aug 22 '16 at 19:43
  • Yes. you can add your own populateState method in your model and populate the values from request manually. – Nagarjun Aug 22 '16 at 20:10
  • OK, thats working. And now I want to have the state populated when a request with special task is called. How does this work? In that case my list.ordering is always empty. – tria1312 Aug 22 '16 at 21:27
  • I found it. You have to fetch the State by calling the Method $app->getUserState( 'list.column', 'default_column_name' ); – tria1312 Aug 22 '16 at 22:02

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