/**
* Filter `edit_user` capability and allow if user is parent
*
* @since 0.1.0
*
* @param array $caps
* @param string $cap
* @param int $user_id
* @param array $args
*/
function wp_user_parents_map_meta_cap($caps = array(), $cap = '', $user_id = 0, $args = array())
{
// Copy the caps array so a pristene one can be passed below
$new_caps = $caps;
// Modify core caps, and check for newly mapped ones
switch ($cap) {
// Parent management
case 'edit_user':
// Break if editing self
if ($user_id === $args[0]) {
break;
}
// Grant cap if parent
if (wp_is_user_parent_of_user($args[0], $user_id)) {
$new_caps = array('read');
}
break;
// Have
// Have
case 'have_user_parents':
case 'have_user_children':
$new_caps = array('exist');
break;
// View
// View
case 'view_user_parents':
case 'view_user_children':
$new_caps = array('exist');
break;
// Edit
// Edit
case 'edit_user_parents':
case 'edit_user_children':
$new_caps = array($cap);
break;
}
// Return possibly modified capabilities array
return apply_filters('wp_user_parents_map_meta_cap', $new_caps, $caps, $cap, $user_id, $args);
}
/**
* Update user parents
*
* @since 0.1.0
*/
function wp_user_parents_save_meta_data($user_id = 0)
{
// Bail if no page
if (empty($_GET['page'])) {
return;
}
// Bail if not saving the 'account' section
if (sanitize_key($_GET['page']) !== 'account') {
return;
}
/** Parents ***************************************************************/
// Attempt to save parents
$posted_parent_ids = !empty($_POST['wp_user_parents']) ? wp_parse_id_list($_POST['wp_user_parents']) : array();
// Delete user parents
delete_user_meta($user_id, 'user_parent');
// Add user metas
foreach ($posted_parent_ids as $id) {
if (!wp_is_user_parent_of_user($id, $user_id)) {
add_user_meta($user_id, 'user_parent', $id, false);
}
}
/** Children **************************************************************/
// Attempt to save parents
$posted_children_ids = !empty($_POST['wp_user_children']) ? wp_parse_id_list($_POST['wp_user_children']) : array();
// Get parent user IDs
$children_ids = wp_get_user_children($user_id);
foreach ($children_ids as $child_id) {
delete_user_meta($child_id, 'user_parent', $user_id);
}
// Add user metas
foreach ($posted_children_ids as $id) {
if (!wp_is_user_child_of_user($user_id, $id)) {
add_user_meta($id, 'user_parent', $user_id, false);
}
}
}
