$user_edit_limit = new NS_User_Edit_Limit(
6, // User ID we want to limit
[999] // Array of parent page IDs user is allowed to edit
);
class NS_User_Edit_Limit {
/**
* Store the ID of the user we want to control, and the
* posts we will let the user edit.
*/
private $user_id = 0;
private $allowed = array();
public function __construct( $user_id, $allowed ) {
// Save the ID of the user we want to limit.
$this->user_id = $user_id;
// Expand the list of allowed pages to include sub pages
$all_pages = new WP_Query( array(
'post_type' => 'page',
'posts_per_page' => -1,
) );
foreach ( $allowed as $page ) {
$this->allowed[] = $page;
$sub_pages = get_page_children( $page, $all_pages );
foreach ( $sub_pages as $sub_page ) {
$this->allowed[] = $sub_page->ID;
}
}
// For the prohibited user...
// Remove the edit link from the front-end as needed
add_filter( 'get_edit_post_link', array( $this, 'remove_edit_link' ), 10, 3 );
add_action( 'admin_bar_menu', array( $this, 'remove_wp_admin_edit_link' ), 10, 1 );
// Remove the edit link from wp-admin as needed
add_action( 'page_row_actions', array( $this, 'remove_page_list_edit_link' ), 10, 2 );
}
/**
* Helper functions that check if the current user is the one
* we want to limit, and check if a specific post is in our
* list of posts that we allow the user to edit.
*/
private function is_user_limited() {
$current_user = wp_get_current_user();
return ( $current_user->ID == $this->user_id );
}
private function is_page_allowed( $post_id ) {
return in_array( $post_id, $this->allowed );
}
/**
* Removes the edit link from the front-end as needed.
*/
public function remove_edit_link( $link, $post_id, $test ) {
/**
* If...
* - The limited user is logged in
* - The page the edit link is being created for is not in the allowed list
* ...return an empty $link. This also causes edit_post_link() to show nothing.
*
* Otherwise, return link as normal.
*/
if ( $this->is_user_limited() && !$this->is_page_allowed( $post_id ) ) {
return '';
}
return $link;
}
/**
* Removes the edit link from WP Admin Bar
*/
public function remove_wp_admin_edit_link( $wp_admin_bar ) {
/**
* If:
* - We're on a single page
* - The limited user is logged in
* - The page is not in the allowed list
* ...Remove the edit link from the WP Admin Bar
*/
if (
is_page() &&
$this->is_user_limited() &&
!$this->is_page_allowed( get_post()->ID )
) {
$wp_admin_bar->remove_node( 'edit' );
}
}
/**
* Removes the edit link from WP Admin's edit.php
*/
public function remove_page_list_edit_link( $actions, $post ) {
/**
* If:
* -The limited user is logged in
* -The page is not in the allowed list
* ...Remove the "Edit", "Quick Edit", and "Trash" quick links.
*/
if (
$this->is_user_limited() &&
!$this->is_page_allowed( $post->ID )
) {
unset( $actions['edit'] );
unset( $actions['inline hide-if-no-js']);
unset( $actions['trash'] );
}
return $actions;
}
}
