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<?php
/**
* This file is part of the wp-forecast plugin for WordPress
*
* Copyright 2016 Hans Matzen (email : webmaster at tuxlog.de)
*
* @package VirtualPage
*/
if ( ! class_exists( 'Wpf_VirtualPage' ) ) {
/**
* Define class for creating virtual posts.
*
* This is a base class for creating virtual pages in WordPress
*
* @package wp-forecast
*/
class Wpf_VirtualPage {
/**
* The Slug.
*
* @var string
*/
private $slug = null;
/**
* The Title.
*
* @var string
*/
private $title = null;
/**
* The Content.
*
* @var string
*/
private $content = null;
/**
* The Author.
*
* @var string
*/
private $author = null;
/**
* Date of publish
*
* @var date
*/
private $date = null;
/**
* Typo of post
*
* @var string
*/
private $type = null;
/**
* Constructor.
*
* @param array $args Constructor.
* @throws Exception Nothing special.
*/
public function __construct( $args ) {
if ( ! isset( $args['slug'] ) ) {
throw new Exception( 'Slug missing. Can not create virtual page' );
}
$this->slug = $args['slug'];
$this->title = isset( $args['title'] ) ? $args['title'] : '';
$this->content = isset( $args['content'] ) ? $args['content'] : '';
$this->author = isset( $args['author'] ) ? $args['author'] : 1;
$this->date = isset( $args['date'] ) ? $args['date'] : current_time( 'mysql' );
$this->dategmt = isset( $args['date'] ) ? $args['date'] : current_time( 'mysql', 1 );
$this->type = isset( $args['type'] ) ? $args['type'] : 'page';
add_filter( 'the_posts', array( &$this, 'virtual_page' ) );
}
/**
* Filter to create virtual page content.
*
* @param array $posts Parameter array for the virtual page.
*/
public function virtual_page( $posts ) {
global $wp, $wp_query;
if ( count( $posts ) === 0 &&
( strcasecmp( $wp->request, $this->slug ) === 0 || $wp->query_vars['page_id'] === $this->slug ) ) {
// create a fake post intance.
$post = new stdClass();
// fill properties of $post with everything a page in the database would have.
$post->ID = -1; // use an illegal value for page ID.
$post->post_author = $this->author; // post author id.
$post->post_date = $this->date; // date of post.
$post->post_date_gmt = $this->dategmt;
$post->post_content = $this->content;
$post->post_title = $this->title;
$post->post_excerpt = '';
$post->post_status = 'publish';
$post->comment_status = 'closed'; // mark as closed for comments, since page doesn't exist.
$post->ping_status = 'closed'; // mark as closed for pings, since page doesn't exist.
$post->post_password = ''; // no password.
$post->post_name = $this->slug;
$post->to_ping = '';
$post->pinged = '';
$post->modified = $post->post_date;
$post->modified_gmt = $post->post_date_gmt;
$post->post_content_filtered = '';
$post->post_parent = 0;
$post->guid = get_home_url( '/' . $this->slug );
$post->menu_order = 0;
$post->post_tyle = $this->type;
$post->post_mime_type = '';
$post->comment_count = 0;
// set filter results.
$posts = array( $post );
// reset wp_query properties to simulate a found page.
$wp_query->is_page = true;
$wp_query->is_singular = true;
$wp_query->is_home = false;
$wp_query->is_archive = false;
$wp_query->is_category = false;
unset( $wp_query->query['error'] );
$wp_query->query_vars['error'] = '';
$wp_query->is_404 = false;
}
return ( $posts );
}
}
}