page-template.php

<?php
 
/**
 * @package AMRW
 * @subpackage Admin functions
 */
 
 
/**
 * Class AMRW_Page_Template
 * This class adds Room View page template to Page Template selector
 * @author  Sibin Grasic [email protected]
 * @since   0.1
 
 */
 
Class AMRW_Page_Template
{
       
        /**
         * @var array - List of templates we want to add to theme
         */
        protected $templates;
 
 
        public function __construct()
        {
            $this->plugin_slug = 'AMRWBRE';
 
            $this->templates = array();
 
            add_filter('page_attributes_dropdown_pages_args', array( $this, 'register_amrw_template'));
            add_filter('wp_insert_post_data', array( $this, 'register_amrw_template' ));
            add_filter('template_include',array($this,'view_amrw_template'));
 
            $this->templates = array(
                'templates/am_room_view_template.php' => 'Room View'
            );
        }
 
        public function register_amrw_template($atts)
        {
            $cache_key = 'page_templates-'.md5( get_theme_root() . '/' . get_stylesheet() );
 
            $templates = wp_get_theme()->get_page_templates();
            if (empty($templates))
                $templates = array();
 
            wp_cache_delete( $cache_key , 'themes');
            $templates = array_merge( $templates, $this->templates );
            wp_cache_add( $cache_key, $templates, 'themes', 1800 );
 
            return $atts;
 
        }
 
        public function view_amrw_template($template)
        {
            global $post;
 
            if (!isset($this->templates[get_post_meta($post->ID, '_wp_page_template', true)]))
                return $template;
       
            $file = AMRW_PATH. get_post_meta($post->ID, '_wp_page_template', true);
 
           
            if(file_exists( $file ))
                return $file;
            else
                echo $file;
 
            return $template;
        }
}
 
$AMRW_PT = new AMRW_Page_Template();