/**
* Add the table IDs for an exported post (table) to the WP WXR export file.
*
* The table IDs for a table are exported in a faked post meta field.
* As there's no action for adding extra data to the WXR export file, we hijack the `wxr_export_skip_postmeta` filter hook.
*
* @since 1.5.0
*
* @param bool $skip Whether to skip the current post meta. Default false.
* @param string $meta_key Current meta key.
* @param stdClass $meta Current meta object.
*/
public function add_table_id_to_wp_export($skip, $meta_key, $meta)
{
// Bail if the exporter doesn't process a TablePress table right now.
if ($this->table_options_field_name !== $meta_key) {
return $skip;
}
// Find all table IDs that map to the post ID of the table that is currently being exported.
$table_post = $this->tables->get('table_post');
$table_ids = array_keys($table_post, (int) $meta->post_id, true);
// Bail if no table IDs are mapped to this post ID.
if (empty($table_ids)) {
return $skip;
}
// Pretend that there is a `_tablepress_export_table_id` post meta field with the list of table IDs.
$key = '_tablepress_export_table_id';
$value = wxr_cdata(implode(',', $table_ids));
// Hijack the filter and print extra XML code for our faked post meta field.
echo <<<WXR
\t\t<wp:postmeta>
\t\t\t<wp:meta_key>{$key}</wp:meta_key>
\t\t\t<wp:meta_value>{$value}</wp:meta_value>
\t\t</wp:postmeta>
WXR;
return $skip;
}
/**
* Merge existing Plugin Options with default Plugin Options,
* remove (no longer) existing options, e.g. after a plugin update.
*
* @since 1.0.0
*/
public function merge_plugin_options_defaults()
{
$plugin_options = $this->plugin_options->get();
// Remove old (i.e. no longer existing) Plugin Options.
$plugin_options = array_intersect_key($plugin_options, $this->default_plugin_options);
// Merge current into new Plugin Options.
$plugin_options = array_merge($this->default_plugin_options, $plugin_options);
$this->plugin_options->update($plugin_options);
}
/**
* Invalidate all table output caches, e.g. after a plugin update
* For TablePress pre-0.9-RC updates
*
* @since 0.9-RC
*/
public function invalidate_table_output_caches_tp09()
{
$table_post = $this->tables->get('table_post');
if (empty($table_post)) {
return;
}
// go through all tables
foreach ($table_post as $table_id => $post_id) {
$caches_list_transient_name = 'tablepress_c_' . md5($table_id);
$caches_list = get_transient($caches_list_transient_name);
if (is_array($caches_list)) {
foreach ($caches_list as $cache_transient_name => $dummy_value) {
delete_transient($cache_transient_name);
}
}
delete_transient($caches_list_transient_name);
}
}
