Preprocess Panels or Panelizer content

Question

I am trying to change output of some of the fields used inside my panelizer content, i.e node pages, but hook_preprocess_page( &$vars) is showing the output as rendered #markup and i just cant get hold of the render-able array for my content?any help please?

Answer 1

There is a template_preprocess_panels_pane

/**
 * Implements preprocess_panels_pane().
 */
function YOURTHEME_preprocess_panels_pane(&$vars) {
}

Documentation

If you want to change the output of a field you have:

/**
 * Implements hook_panels_pane_content_alter().
 */
 function YOUR_MODULE_panels_pane_content_alter($content, $pane, $args, $contexts) {
  $content ...
}

Answer 2

I know it is an old question but anyone still looking for answer for this, here goes. Looking at function template_preprocess_panels_pane in panels.module file:

$vars['content'] = !empty($content->content) ? $content->content : '';

$content is not an object anymore.

I saw a nice solution here. According to this all you have to do is use hook_theme and set override preprocess functions to true. This way you can copy paste the original function and use it as a way to override. Let me know if you need any more help in this.

Answer 3

I can confirm that hook_panels_pane_content_alter() works with Panelizer fields (that could not be modified with hook_node_view or hook_ctools_render_alter).

You use $contexts to determine the content type and raw field values and modify $content to modify the rendered output e.g. here I modify the formatting of a rendered price with the currency module API taking the 3-letter currency code from a different custom field.

/**
 * Implements hook_panels_pane_content_alter().
 */
 function custom_example_panels_pane_content_alter($content, $pane, $args,  $contexts) {
     if(isset($contexts['panelizer']->data->type) && $contexts['panelizer']->data->type = "your_content_type") {
         if ($content->subtype == 'node:field_your_content_type_price' && isset($content->content[0]['#markup']) && isset($contexts['panelizer']->data->field_roomshare_price['und'][0]['value']) && is_numeric($contexts['panelizer']->data->field_your_content_type_price['und'][0]['value']) && isset($contexts['panelizer']->data->field_your_content_type_currency_type['und'][0]['value']) && strlen($contexts['panelizer']->data->field_your_content_type_currency_type['und'][0]['value']) == 3) {
            $currency = currency_load($contexts['panelizer']->data->field_roomshare_currency_type['und'][0]['value']);
            if ($currency) {
                $amount = $contexts['panelizer']->data->field_your_content_type_price['und'][0]['value'];
                $formatted = $currency->format($amount);

                $content->content[0]['#markup'] = $formatted;
            }
            }
    }
}