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<?php
/**
* class-groups-utility.php
*
* Copyright (c) "kento" Karim Rahimpur www.itthinx.com
*
* This code is released under the GNU General Public License.
* See COPYRIGHT.txt and LICENSE.txt.
*
* This code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* This header and all notices must be kept intact.
*
* @author Karim Rahimpur
* @package groups
* @since groups 1.0.0
*/
if ( !defined( 'ABSPATH' ) ) {
exit;
}
/**
* Utility functions.
*/
class Groups_Utility {
/**
* Checks an id (0 is accepted => anonymous).
*
* @param string|int $id
* @return int|boolean if validated, the id as an int, otherwise false
*/
public static function id( $id ) {
$result = false;
if ( is_numeric( $id ) ) {
$id = intval( $id );
//if ( $id > 0 ) {
if ( $id >= 0 ) { // 0 => anonymous
$result = $id;
}
}
return $result;
}
/**
* Returns an array of blog_ids for current blogs.
* @return array of int with blog ids
*/
public static function get_blogs() {
global $wpdb;
$result = array();
if ( is_multisite() ) {
$blogs = $wpdb->get_results( $wpdb->prepare(
"SELECT blog_id FROM $wpdb->blogs WHERE site_id = %d AND archived = '0' AND spam = '0' AND deleted = '0' ORDER BY registered DESC",
$wpdb->siteid
) );
if ( is_array( $blogs ) ) {
foreach( $blogs as $blog ) {
$result[] = $blog->blog_id;
}
}
} else {
$result[] = get_current_blog_id();
}
return $result;
}
/**
* Get the tree hierarchy of groups.
*
* @param array $tree
*
* @return array
*/
public static function get_group_tree( &$tree = null, $linked = false ) {
global $wpdb;
$group_table = _groups_get_tablename( 'group' );
if ( $tree === null ) {
$tree = array();
$root_groups = $wpdb->get_results( "SELECT group_id FROM $group_table WHERE parent_id IS NULL ORDER BY name" ); // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
if ( $root_groups ) {
foreach( $root_groups as $root_group ) {
$group_id = Groups_Utility::id( $root_group->group_id );
$tree[$group_id] = array();
}
}
self::get_group_tree( $tree );
} else {
foreach( $tree as $group_id => $nodes ) {
$children = $wpdb->get_results( $wpdb->prepare(
"SELECT group_id FROM $group_table WHERE parent_id = %d ORDER BY name", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
Groups_Utility::id( $group_id )
) );
foreach( $children as $child ) {
$tree[$group_id][$child->group_id] = array();
}
self::get_group_tree( $tree[$group_id] );
}
}
return $tree;
}
/**
* Render options from tree for select.
*
* @since 2.19.0
*
* @param array $tree
* @param string $output
* @param int $level
*/
public static function render_group_tree_options( &$tree, &$output, $level = 0, $selected = array() ) {
foreach( $tree as $group_id => $nodes ) {
$output .= sprintf(
'<option class="node" value="%d" %s>',
esc_attr( $group_id ),
in_array( $group_id, $selected ) ? 'selected' : ''
);
$group = Groups_Group::read( $group_id );
if ( $group ) {
if ( $level > 0 ) {
$output .= str_repeat( " ", $level ) . "⌞";
}
$output .= $group->name ? stripslashes( wp_filter_nohtml_kses( $group->name ) ) : '';
}
$output .= '</option>';
if ( !empty( $nodes ) ) {
self::render_group_tree_options( $nodes, $output, $level + 1, $selected );
}
}
}
/**
* Render the group tree to the $output parameter passed by reference.
*
* @param array $tree
* @param string $output
*/
public static function render_group_tree( &$tree, &$output, $linked = false ) {
$output .= '<ul class="groups-tree">';
foreach( $tree as $group_id => $nodes ) {
$output .= '<li class="groups-tree-node">';
$group = Groups_Group::read( $group_id );
if ( $group ) {
if ( $linked ) {
$edit_url = add_query_arg(
array(
'group_id' => intval( $group->group_id ),
'action' => 'edit'
),
get_admin_url( null, 'admin.php?page=groups-admin' )
);
$output .= sprintf( '<a href="%s">', $edit_url );
}
$output .= $group->name ? stripslashes( wp_filter_nohtml_kses( $group->name ) ) : '';
if ( $linked ) {
$output .= '</a>';
}
}
if ( !empty( $nodes ) ) {
self::render_group_tree( $nodes, $output, $linked );
}
$output .= '</li>';
}
$output .= '</ul>';
}
/**
* Compares the two object's names, used for groups and
* capabilities, i.e. Groups_Group and Groups_Capability can be compared
* if both are of the same class. Otherwise this will return 0.
*
* @param Groups_Group|Groups_Capability $o1
* @param Groups_Group|Groups_Capability $o2 must match the class of $o1
*
* @return number
*/
public static function cmp( $o1, $o2 ) {
$result = 0;
if ( $o1 instanceof Groups_Group && $o2 instanceof Groups_Group ) {
$result = strcmp( $o1->get_name(), $o2->get_name() );
} else if ( $o1 instanceof Groups_Capability && $o2 instanceof Groups_Capability ) {
$result = strcmp( $o1->get_capability(), $o2->get_capability() );
}
return $result;
}
}