/**
* Update moodle course categories in Wordpress site.
*
* @access private
* @param array $categories
* @param string $taxonomy
* @param string $meta_key
* @return void
*/
private function update_categories($categories, $taxonomy, $meta_key)
{
if (empty($taxonomy) || empty($meta_key) || !taxonomy_exists($taxonomy)) {
return;
}
$category_ids = array();
if (!empty($categories)) {
foreach ($categories as $category) {
$term_id = woodle_get_term_by_moodle_id($category['id'], $taxonomy, $meta_key);
if (!$term_id) {
$term = wp_insert_term($category['name'], $taxonomy, array('description' => $category['description'], 'slug' => "{$category['name']} {$category['id']}"));
if (!is_wp_error($term)) {
apply_filters("woodle_add_{$meta_key}_meta", $term['term_id'], '_category_id', $category['id'], false);
apply_filters("woodle_add_{$meta_key}_meta", $term['term_id'], '_parent', $category['parent'], false);
apply_filters("woodle_add_{$meta_key}_meta", $term['term_id'], '_category_path', $category['path'], false);
}
} else {
$term = wp_update_term($term_id, $taxonomy, array('name' => $category['name'], 'slug' => "{$category['name']} {$category['id']}", 'description' => $category['description']));
if (!is_wp_error($term)) {
apply_filters("woodle_update_{$meta_key}_meta", $term['term_id'], '_parent', $category['parent'], '');
apply_filters("woodle_update_{$meta_key}_meta", $term['term_id'], '_category_path', $category['path'], false);
}
}
$category_ids[] = $category['id'];
}
}
$terms = woodle_get_terms($taxonomy);
if ($terms) {
foreach ($terms as $term) {
$category_id = apply_filters("woodle_get_{$meta_key}_meta", $term->term_id, '_category_id', true);
if (in_array($category_id, $category_ids)) {
$parent = apply_filters("woodle_get_{$meta_key}_meta", $term->term_id, '_parent', true);
$parent_term_id = woodle_get_term_by_moodle_id($parent, $taxonomy, $meta_key);
wp_update_term($term->term_id, $taxonomy, array('parent' => $parent_term_id));
} else {
if (!empty($category_id)) {
wp_delete_term($term->term_id, $taxonomy);
}
}
}
}
}
/**
* Returns term id by moodle category id
*
* @param int $category_id
* @param string $taxonomy (default: null)
* @param string $meta_key (default: null)
* @return int
*/
function woodle_get_term_by_moodle_id($category_id, $taxonomy = '', $meta_key = '')
{
if (empty($category_id) || !is_numeric($category_id) || empty($taxonomy) || !taxonomy_exists($taxonomy) || empty($meta_key)) {
return 0;
}
$terms = woodle_get_terms($taxonomy);
//print_r($terms);die;
if ($terms) {
foreach ($terms as $term) {
if (apply_filters("woodle_get_{$meta_key}_meta", $term->term_id, '_category_id', true) == $category_id) {
return $term->term_id;
}
}
}
return 0;
}