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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
/**
* rpg_Bbp_Private_Groups_Adds class.
* This code was written by wolly66 anbd is included in this plugin to allow it's use
* this class is written to add to the Private groups plugin
* https://wordpress.org/plugins/bbp-private-groups/
* a method to add a user to group via code, plugins or themes
* a method to remove a user from a group, via code, plugins or themes
*
* when you need to add or remove a user to a group
* e.g. $bbp_private_groups_adds = new rpg_Bbp_Private_Groups_Adds( $user_id , $group );
* Please, if you do not pass $user_id AND $group, the class do nothing
*
* Then, if you want to add a user to a group call the add() method
* $bbp_private_groups_adds->add();
*
* if you want to remove a user from a group, call the remove method
* $bbp_private_groups_adds->remove();
*
*/
class rpg_Bbp_Private_Groups_Adds{
private $user_id = '';
private $group = '';
private $group_prefix = '';
private $user_meta_name = '';
private $errors = array();
/**
* __construct function.
*
* @access public
* @param mixed $user_id (default: null)
* @param mixed $group (default: null)
* @return void
*/
public function __construct( $user_id = null, $group = null ){
// Set the group prefix as Private groups plugin: group
$this->group_prefix = 'group';
// Set the usermeta name as Private groups plugin: private_group
$this->user_meta_name = 'private_group';
/**validate user_id and group
*
* user_id must be an integer
*
* group must be:
* a string
* longer then 5 char
* first 5 chars must be: group
* others chars must be numeric. i.e. 1
*
* if validation fail, the class do nothing
*
*/
$this->validate_user_id( $user_id );
$this->validate_group( $group );
}
/**
* add function.
*
* Instantiate the class: $bbp_private_groups_adds = new rpg_Bbp_Private_Groups_Adds( $user_id , $group )
* Then, to add a new group to a user call the add method: $bbp_private_groups_adds->add();
*
* @access public
* @return void
*/
public function add(){
if ( false == $this->user_id || false == $this->group )
return;
$user_meta = get_user_meta( $this->user_id, $this->user_meta_name, true );
if ( ! empty( $user_meta) ){
$explode = array_filter( explode( '*', $user_meta ) );
if ( is_array( $explode ) ){
if ( ! in_array( $this->group, $explode ) ){
$explode[] = $this->group;
$new_groups = '*';
foreach ( $explode as $x ){
$new_groups .= $x . '*';
}
update_user_meta( $this->user_id, $this->user_meta_name, $new_groups );
}
}
} else {
// User meta $this->user_meta_name is empty.
// NO groups for this user
// add user meta for the selected group: *groupINTnumber* i.e. group1
$new_groups = '*' . $this->group . '*';
update_user_meta( $this->user_id, $this->user_meta_name, $new_groups );
}
}
/**
* remove function.
*
* Instantiate the class: $bbp_private_groups_adds = new rpg_Bbp_Private_Groups_Adds( $user_id , $group )
* Then, to remove a group from a user call the remove method: $bbp_private_groups_adds->remove();
*
*
* @access public
* @return void
*/
public function remove(){
if ( false == $this->user_id || false == $this->group )
return;
$user_meta = get_user_meta( $this->user_id, $this->user_meta_name, true );
if ( ! empty( $user_meta) ){
$explode = array_filter( explode( '*', $user_meta ) );
if ( is_array( $explode ) ){
if ( in_array( $this->group, $explode ) && count( $explode ) > 1 ){
$new_groups = '*';
foreach ( $explode as $x ){
if ( $this->group != $x ){
$new_groups .= $x . '*';
}
}
update_user_meta( $this->user_id, $this->user_meta_name, $new_groups );
} elseif ( in_array( $this->group, $explode ) && count( $explode ) == 1 ){
delete_user_meta( $this->user_id, $this->user_meta_name );
}
}
}
}
/**
* validate_user_id function.
*
* @access private
* @param mixed $user_id
* @return void
*/
private function validate_user_id( $user_id ){
$this->user_id = false;
if ( ! is_numeric( $user_id ) ){
$this->errors[] = '$user_id is not numeric';
return;
}
$this->user_id = (int) $user_id;
}
/**
* validate_group function.
*
* @access private
* @param mixed $group
* @return void
*/
private function validate_group( $group ){
$this->group = false;
if ( ! is_string( $group ) ){
$this->errors[] = '$group is not a string';
return;
}
if ( 6 > strlen( $group ) ){
$this->errors[] = '$group is too short';
return;
}
if ( substr( strtolower( $group ), 0, 5 ) != $this->group_prefix ){
$this->errors[] = '$group prefix is not group';
return;
}
if ( ! is_numeric( substr( $group, 5 ) ) ){
$this->errors[] = '$group suffix is not numeric';
return;
}
$this->group = strtolower( $group );
}
}