/**
* Get the IDs for posts in a collections
*
* @param string $name
* @param array $args
* @return array
*/
function collections_get_post_ids($name, $args = array())
{
do_action('collections_get_posts', $name);
$collection = Post_Collection::get_by_name($name);
if (!$collection) {
return array();
}
if (Collections()->is_customizer_preview()) {
// Reset collections on initial page load
if (!empty($_POST['customize_messenger_channel']) && 'preview-0' === $_POST['customize_messenger_channel'] && $collection->get_published_item_ids() != $collection->get_customizer_item_ids()) {
$collection->set_customizer_item_ids($collection->get_published_item_ids());
}
return $collection->get_customizer_item_ids();
} else {
return $collection->get_published_item_ids();
}
}
/**
* Tell the parent about which Collections were used on this page
*/
public function action_wp_footer()
{
// Set up the data
$rendered_collections = array();
foreach ($this->rendered_collections as $name) {
$collection = Post_Collection::get_by_name($name);
$data = array('slug' => sanitize_title($name), 'items' => array());
if ($collection) {
foreach ($collection->get_customizer_items() as $post) {
$data['items'][] = Collections()->get_post_for_json($post);
}
}
$rendered_collections[$name] = $data;
}
$settings = array('renderedCollections' => $rendered_collections);
?>
<script type="text/javascript">
var _wpCollectionsCustomizerPreviewSettings = <?php
echo json_encode($settings);
?>
;
</script>
<?php
}
/**
* Update the posts associated with widget
*
* @param array $new_instance
* @param array $old_instance
* @return array $instance
*/
public function update($new_instance, $old_instance)
{
$collection = Post_Collection::get_by_name($this->get_collection_name());
if (!$collection) {
$collection = Post_Collection::create($this->get_collection_name());
if (is_wp_error($collection)) {
return $old_instance;
}
}
$instance = array();
$instance['title'] = !empty($new_instance['title']) ? sanitize_text_field($new_instance['title']) : '';
if (!empty($new_instance['collection_items'])) {
$instance_items = array_map('absint', explode(',', $new_instance['collection_items']));
} else {
$instance_items = array();
}
// Triggers cache bust in Customizer and also used for save
$instance['collection_items_stash'] = $instance_items;
// Doing a customizer preview should only modify Customizer collection items.
if ($this->is_customizer_widget_update()) {
$collection->set_customizer_item_ids($instance_items);
} else {
$collection->set_published_item_ids($instance_items);
}
return $instance;
}