update.php

<?php

function insertPost( $post ) {
		$wp_post   = (array) $post;
		$wp_postId = $wp_post['ID'];

		unset($wp_post['ID']);
		$wp_post['post_author'] = $this->user_id;
		$wp_post['guid']        = str_replace( $baseUrl, $newUrl, $wp_post['guid'] );

		$insertedPostResult = wp_insert_post( $wp_post, true );

		return $insertedPostResult;
	}