Code-Snippets-Functions/Execute a function on a child site/WordPress/restrict-author-to-only-be-able-to-view-own-posts.txt

function wp_authors_posts_view( $wp_query ) {
    if ( strpos( $_SERVER[ 'REQUEST_URI' ], '/wp-admin/edit.php' ) !== false ) {
        if ( !current_user_can( 'edit_others_posts' ) ) {
            global $current_user;
            $wp_query->set( 'author', $current_user->id );
        }
    }
}

add_filter('parse_query', 'wp_authors_posts_view' );