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<?php
/**
* class-groups-admin-users.php
*
* Copyright (c) 2012 "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;
}
/**
* Users admin integration with Groups.
*/
class Groups_Admin_Users {
/**
* Column key.
*
* @var string
*/
const GROUPS = 'groups_user_groups';
/**
* Hooks into filters to add the Groups column to the users table.
*/
public static function init() {
// we hook this on admin_init so that current_user_can() is available
add_action( 'admin_init', array( __CLASS__, 'setup' ) );
}
/**
* Adds the filters and actions only for users who have the right Groups permissions.
*/
public static function setup() {
if ( Groups_User::current_user_can( GROUPS_ACCESS_GROUPS ) ) {
// filters to display the user's groups
add_filter( 'manage_users_columns', array( __CLASS__, 'manage_users_columns' ) );
// args: unknown, string $column_name, int $user_id
add_filter( 'manage_users_custom_column', array( __CLASS__, 'manage_users_custom_column' ), 10, 3 );
}
if ( Groups_User::current_user_can( GROUPS_ADMINISTER_GROUPS ) ) {
if ( !is_network_admin() ) {
// scripts
add_action( 'admin_enqueue_scripts', array( __CLASS__, 'admin_enqueue_scripts' ) );
// styles
// add_action( 'admin_head', array( __CLASS__, 'admin_head' ) );
// allow to add or remove selected users to groups
add_action( 'load-users.php', array( __CLASS__, 'load_users' ) );
// add links to filter users by group
add_filter( 'views_users', array( __CLASS__, 'views_users' ) );
// modify query to filter users by group
add_filter( 'pre_user_query', array( __CLASS__, 'pre_user_query' ) );
// WP_Users_List_Table implements extra_tablenav() where the restrict_manage_users action is invoked.
// As the extra_tablenav() method does not define a generic extension point, this is
// the best shot we get at inserting our group actions block (currently we're at WordPress 3.6.1).
// We choose to use our own group-actions block instead of re-using the existing bulk-actions,
// to have a more explicit user interface which makes it clear that these actions
// are directed at relating users and groups.
add_action( 'restrict_manage_users', array( __CLASS__, 'restrict_manage_users' ), 0 );
}
}
}
/**
* Modify query to filter users by group.
*
* @param WP_User_Query $user_query
*
* @return WP_User_Query
*/
public static function pre_user_query( $user_query ) {
global $pagenow, $wpdb;
if ( ( $pagenow == 'users.php' ) && empty( $_GET['page'] ) ) {
if ( isset( $_REQUEST['filter_group_ids'] ) && is_array( $_REQUEST['filter_group_ids'] ) ) {
$group_ids = array();
foreach ( $_REQUEST['filter_group_ids'] as $group_id ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
$group_id = Groups_Utility::id( $group_id );
if ( $group_id !== false ) {
$group_ids[] = $group_id;
}
}
$n = count( $group_ids );
if ( $n > 0 ) {
$user_group_table = _groups_get_tablename( 'user_group' );
$group_ids = implode( ',', esc_sql( $group_ids ) );
$conjunctive = !empty( $_REQUEST['filter_groups_conjunctive'] );
if ( !$conjunctive ) {
$user_query->query_where .= " AND $wpdb->users.ID IN ( SELECT DISTINCT user_id FROM $user_group_table WHERE group_id IN ( $group_ids ) ) ";
} else {
$user_query->query_where .=
" AND $wpdb->users.ID IN ( " .
"SELECT user_id FROM ( " .
"SELECT user_id, COUNT( group_id ) AS n FROM $user_group_table WHERE group_id IN ( $group_ids ) GROUP BY user_id " .
") group_counts WHERE n = " . intval( $n ) .
") ";
}
}
}
}
return $user_query;
}
/**
* Enqueue scripts the group-actions.
*/
public static function admin_enqueue_scripts() {
global $pagenow;
if ( ( $pagenow == 'users.php' ) && empty( $_GET['page'] ) ) {
Groups_UIE::enqueue( 'select' );
wp_enqueue_style( 'groups_admin_user' );
}
}
/**
* Adds the group add/remove buttons after the last action box.
*/
public static function admin_head() {
global $pagenow;
if ( ( $pagenow == 'users.php' ) && empty( $_GET['page'] ) ) {
// @since 2.18.0 moved to groups_admin_user.css
}
}
/**
* Renders group actions in the users table's extra_tablenav().
*/
public static function restrict_manage_users() {
global $pagenow, $wpdb, $groups_select_user_groups_index;
// We don't handle multiple instances so don't render another.
if ( !isset( $groups_select_user_groups_index ) ) {
$groups_select_user_groups_index = 0;
} else {
return '';
}
$output = '';
if ( ( $pagenow == 'users.php' ) && empty( $_GET['page'] ) ) {
// groups select
$groups_table = _groups_get_tablename( 'group' );
$groups = apply_filters( 'groups_admin_users_restrict_manage_users_groups', $wpdb->get_results( "SELECT * FROM $groups_table ORDER BY name" ) ); // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
if ( $groups ) {
$groups_select = sprintf(
'<select id="user-groups" class="groups" name="group_ids[]" multiple="multiple" placeholder="%s" data-placeholder="%s">',
esc_attr__( 'Choose groups …', 'groups' ),
esc_attr__( 'Choose groups …', 'groups' )
);
foreach( $groups as $group ) {
$is_member = false;
$groups_select .= sprintf(
'<option value="%d" %s>%s</option>',
Groups_Utility::id( $group->group_id ),
$is_member ? ' selected="selected" ' : '',
$group->name ? stripslashes( wp_filter_nohtml_kses( $group->name ) ) : ''
);
}
$groups_select .= '</select>';
}
// group bulk actions added through extra_tablenav()
$box = '<div id="group-bulk-actions" class="groups-bulk-container">';
$box .= '<div class="groups-select-container">';
$box .= $groups_select;
$box .= '</div>';
$box .= '<select class="groups-action" name="groups-action">';
$box .= '<option selected="selected" value="-1">' . esc_html__( 'Group Actions', 'groups' ) . '</option>';
$box .= '<option value="add-group">' . esc_html__( 'Add to group', 'groups' ) . '</option>';
$box .= '<option value="remove-group">' . esc_html__( 'Remove from group', 'groups' ) . '</option>';
$box .= '</select>';
$box .= sprintf( '<input class="button" type="submit" name="groups" value="%s" />', esc_attr__( 'Apply', 'groups' ) );
$box .= '</div>';
$box = str_replace( '"', "'", $box );
$nonce = wp_nonce_field( 'user-group', 'bulk-user-group-nonce', true, false );
$nonce = str_replace( '"', "'", $nonce );
$box .= $nonce;
$box .= '<script type="text/javascript">';
$box .= 'document.addEventListener( "DOMContentLoaded", function() {';
$box .= 'if ( typeof jQuery !== "undefined" ) {';
$box .= 'jQuery(".tablenav.top .alignleft.actions:last").after("<div id=\"groups-bulk-actions-block\" class=\"alignleft actions\"></div>");';
$box .= 'jQuery("#group-bulk-actions").appendTo(jQuery("#groups-bulk-actions-block"));';
$box .= '}'; // jQuery
$box .= '} );'; // document....
$box .= '</script>';
$output .= $box;
$output .= Groups_UIE::render_select( '#user-groups' );
}
echo $output; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}
/**
* Hooked on filter in class-wp-list-table.php to filter by group.
*
* @param array $views
*
* @return array views
*/
public static function views_users( $views ) {
global $pagenow, $wpdb;
if ( ( $pagenow == 'users.php' ) && empty( $_GET['page'] ) ) {
$output = '<form id="filter-groups-form" action="" method="get">';
$output .= '<div class="groups-filter-container">';
$output .= '<div class="groups-select-container">';
$output .= sprintf(
'<select id="filter-groups" class="groups" name="filter_group_ids[]" multiple="multiple" placeholder="%s" data-placeholder="%s">',
esc_attr__( 'Choose groups …', 'groups' ),
esc_attr__( 'Choose groups …', 'groups' )
);
$user_group_table = _groups_get_tablename( 'user_group' );
$groups = apply_filters( 'groups_admin_users_views_users_groups', Groups_Group::get_groups( array( 'order_by' => 'name', 'order' => 'ASC' ) ) );
$user_counts = array();
$counts = apply_filters('groups_admin_users_views_users_counts', $wpdb->get_results( "SELECT COUNT(user_id) AS count, group_id FROM $user_group_table GROUP BY group_id" ) ); // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
if ( !empty( $counts ) && is_array( $counts ) ) {
foreach( $counts as $count ) {
if ( isset( $count->count ) && is_numeric( $count->count ) ) {
$user_counts[$count->group_id] = max( 0, intval( $count->count ) );
}
}
}
foreach( $groups as $group ) {
// Do not use $user_count = count( $group->users ); here,
// as it creates a lot of unneccessary objects and can lead
// to out of memory issues on large user bases.
$user_count = isset( $user_counts[$group->group_id] ) ? $user_counts[$group->group_id] : 0;
$selected = isset( $_REQUEST['filter_group_ids'] ) && is_array( $_REQUEST['filter_group_ids'] ) && in_array( $group->group_id, $_REQUEST['filter_group_ids'] );
$output .= sprintf(
'<option value="%d" %s>%s</option>',
Groups_Utility::id( $group->group_id ),
$selected ? ' selected="selected" ' : '',
sprintf(
'%s <span class="count">(%s)</span>',
$group->name ? stripslashes( wp_filter_nohtml_kses( $group->name ) ) : '',
esc_html( $user_count )
)
);
}
$output .= '</select>';
$output .= '</div>'; // .groups-select-container
$output .= '</div>'; // .groups-filter-container
$conjunctive = !empty( $_REQUEST['filter_groups_conjunctive'] );
$output .= sprintf( '<label title="%s" style="margin-right: 4px;">', esc_html_x( 'Users must belong to all chosen groups', 'label title for conjunctive groups filter checkbox', 'groups' ) );
$output .= sprintf( '<input class="filter-groups-conjunctive" name="filter_groups_conjunctive" type="checkbox" value="1" %s />', $conjunctive ? ' checked="checked" ' : '' );
$output .= esc_html_x( '∩', 'label for conjunctive groups filter checkbox', 'groups' );
$output .= '</label>';
$output .= '<input class="button" style="vertical-align:middle" type="submit" value="' . esc_attr__( 'Filter', 'groups' ) . '"/>';
$output .= '</form>';
$output .= Groups_UIE::render_select( '#filter-groups' );
$views['groups'] = $output;
}
return $views;
}
/**
* Adds or removes users to/from groups.
*/
public static function load_users() {
if ( Groups_User::current_user_can( GROUPS_ADMINISTER_GROUPS ) ) {
$users = isset( $_REQUEST['users'] ) ? $_REQUEST['users'] : null; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
$action = null;
if ( !empty( $_REQUEST['groups'] ) ) {
if ( $_GET['groups-action'] == "add-group" ) {
$action = 'add';
} else if ( $_GET['groups-action'] == "remove-group" ) {
$action = 'remove';
}
}
if ( $users !== null && $action !== null && is_array( $users ) ) {
$users = array_map( 'intval', $users );
if ( wp_verify_nonce( $_REQUEST['bulk-user-group-nonce'], 'user-group' ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
foreach( $users as $user_id ) {
switch ( $action ) {
case 'add':
$group_ids = isset( $_GET['group_ids'] ) ? $_GET['group_ids'] : null; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
if ( $group_ids !== null && is_array( $group_ids ) ) {
foreach ( $group_ids as $group_id ) {
// Do NOT use Groups_User::user_is_member( ... ) here, as this must not be filtered:
if ( !Groups_User_Group::read( $user_id, $group_id ) ) {
Groups_User_Group::create(
array(
'user_id' => $user_id,
'group_id' => $group_id
)
);
}
}
}
break;
case 'remove':
$group_ids = isset( $_GET['group_ids'] ) ? $_GET['group_ids'] : null; // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
if ( $group_ids !== null && is_array( $group_ids ) ) {
foreach ( $group_ids as $group_id ) {
// Do NOT use Groups_User::user_is_member( ... ) here, as this must not be filtered:
if ( Groups_User_Group::read( $user_id, $group_id ) ) {
Groups_User_Group::delete( $user_id, $group_id );
}
}
}
break;
}
}
$referer = wp_get_referer();
if ( $referer ) {
$redirect_to = remove_query_arg( array( 'action', 'action2', 'add-to-group', 'bulk-user-group-nonce', 'group_id', 'new_role', 'remove-from-group', 'users', 'update', 'id' ), $referer );
wp_safe_redirect( $redirect_to );
exit;
}
}
}
}
}
/**
* Adds a new column to the users table to show the groups that users belong to.
*
* @param array $column_headers
*
* @return array column headers
*/
public static function manage_users_columns( $column_headers ) {
$column_headers[self::GROUPS] = _x( 'Groups', 'Column header (Users)', 'groups' );
return $column_headers;
}
/**
* Renders custom column content.
*
* @param string $output
* @param string $column_name
* @param int $user_id
*
* @return string custom column content
*/
public static function manage_users_custom_column( $output, $column_name, $user_id ) {
switch ( $column_name ) {
case self::GROUPS :
$groups_user = new Groups_User( $user_id );
$groups = $groups_user->get_groups();
if ( $groups !== null && count( $groups ) > 0 ) {
usort( $groups, array( __CLASS__, 'by_group_name' ) );
$output = '<ul>';
foreach( $groups as $group ) {
$output .= '<li>';
$output .= $group->get_name() ? stripslashes( wp_filter_nohtml_kses( $group->get_name() ) ) : '';
$output .= '</li>';
}
$output .= '</ul>';
} else {
$output .= esc_html__( '--', 'groups' );
}
break;
}
return $output;
}
/**
* usort helper
*
* @param Groups_Group $o1
* @param Groups_Group $o2
*
* @return int strcmp result for group names
*/
public static function by_group_name( $o1, $o2 ) {
return strcmp( $o1->get_name(), $o2->get_name() );
}
}
Groups_Admin_Users::init();