Firstly, you need to add the following capabilities to the Doctor and Receptionist role:
list_usersedit_userscreate_usersdelete_usersNow we can get to work with controlling which users they can create/edite/delete. Let’s start with a “helper” function that will return which roles a user is allowed to edit:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | /** * Helper function get getting roles that the user is allowed to create/edit/delete. * * @param WP_User $user * @return array */ function wpse_188863_get_allowed_roles( $user ) { $allowed = array(); if ( in_array( 'administrator', $user->roles ) ) { // Admin can edit all roles $allowed = array_keys( $GLOBALS['wp_roles']->roles ); } elseif ( in_array( 'Doctor', $user->roles ) ) { $allowed[] = 'Receptionist'; $allowed[] = 'Guest'; } elseif ( in_array( 'Receptionist', $user->roles ) ) { $allowed[] = 'Guest'; } return $allowed; } |
And to set which roles they can assign a user:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | /** * Remove roles that are not allowed for the current user role. */ function wpse_188863_editable_roles( $roles ) { if ( $user = wp_get_current_user() ) { $allowed = wpse_188863_get_allowed_roles( $user ); foreach ( $roles as $role => $caps ) { if ( ! in_array( $role, $allowed ) ) unset( $roles[ $role ] ); } } return $roles; } add_filter( 'editable_roles', 'wpse_188863_editable_roles' ); |
And finally, limit which users they can edit/delete based on their role:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | /** * Prevent users deleting/editing users with a role outside their allowance. */ function wpse_188863_map_meta_cap( $caps, $cap, $user_ID, $args ) { if ( ( $cap === 'edit_user' || $cap === 'delete_user' ) && $args ) { $the_user = get_userdata( $user_ID ); // The user performing the task $user = get_userdata( $args[0] ); // The user being edited/deleted if ( $the_user && $user && $the_user->ID != $user->ID /* User can always edit self */ ) { $allowed = wpse_188863_get_allowed_roles( $the_user ); if ( array_diff( $user->roles, $allowed ) ) { // Target user has roles outside of our limits $caps[] = 'not_allowed'; } } } return $caps; } add_filter( 'map_meta_cap', 'wpse_188863_map_meta_cap', 10, 4 ); |
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