register_custom_post_types

register_custom_post_types.php

<?php
/**
 * Meine Dokumentation zu der Funktion xyz die dafuer sorgt das XYZ etwas macht 
 *
 * @autor	Rene Reimann
 * @package	Theme XYZ
 */
 

if ( ! class_exists( 'register_custom_post_types' ) ) {

    class register_custom_post_types {

        private static $custom_post_types = array(
                        'descriptions'	=> array( 
                                                'plural'    => 'Beschreibungen', 
                                                'singular'  => 'Beschreibung', 
                                                'taxonomy'  => array( 
                                                                 array( 
                                                                    'slug'  => 'kategorie',
                                                                    'name'  => 'Kategorie'
                                                                    )
                                                                ) 
                                            ),
                         'faq' 		    => array( 
                                                'plural'    => 'FAQ', 
                                                'singular'  => 'FAQ', 
                                                'taxonomy'  => array( 
                                                                  array( 
                                                                    'slug'  => 'kategorie',
                                                                    'name'  => 'Kategorie'
                                                                    )
                                                                ),
                                                #'rewrite'	=> '([^/]+)/%post_type%/([^/]+)/?$'
                                                ),
                             'lexikon' 	=> array( 
                                                    'plural'    => 'Lexika', 
                                                    'singular'  => 'Lexikon', 
                                                    'taxonomy'  => array(
                                                                    array( 
                                                                        'slug'  => 'kategorie',
                                                                        'name'  => 'Kategorie'
                                                                        )
                                                                   )
                                                    ),
                             'ratgeber' => array( 
                                                    'plural'    => 'Ratgeber', 
                                                    'singular'  => 'Ratgeber', 
                                                    'taxonomy'  => array(
                                                                    array( 
                                                                        'slug'  => 'kategorie',
                                                                        'name'  => 'Kategorie'
                                                                        )
                                                                   )
                                                    ),
                    );

        private static $post_rule = '([^/]+.*?)/%post_type%/([^/]+)/?$';
        private static $taxonomy_rule = '([^/]+.*?)/(%post_type%)/?$';
        private static $wp_rewrite = false;
        private static $taxonomy_slug = 'category';
        private static $post_type = false;


        /**
         * Meine Dokumentation zu der Funktion xyz die dafuer sorgt das XYZ etwas macht 
         *
         * @autor	Rene Reimann
         * @package	Theme XYZ
         * @param	bool $var
         * @retun	mixed
         */
        public function __construct() {
            global $wp_rewrite;			
            self::$wp_rewrite = &$wp_rewrite;

            self::create_custom_posttypes();
            self::init_general();

            #self::print_rewrite_urls();
            
            add_action( 'template_redirect', array( &$this, 'load_template' ) );
            
            add_filter('query_vars', array( &$this, 'add_query_vars' ) );
            add_filter('post_link', array( &$this, 'filter_permalink' ), 10, 3);
            add_filter('post_type_link', array( &$this, 'filter_permalink'), 10, 3);
            

        }


        function add_query_vars($public_query_vars) {
            $public_query_vars[] = 'custom_taxonomy_name';
            $public_query_vars[] = 'post_type';
            return $public_query_vars;
        }


        public function load_template( $hard = true ) {
            global $wp_query;
            
            $post_type = $wp_query->query_vars['post_type'];
            $custom_taxonomy_name =$wp_query->query_vars['custom_taxonomy_name'];
            $template = $wp_query->query_vars['post_type'] . '.php';
            
            if( isset( $wp_query->query_vars['custom_taxonomy_name'] ) ){
                if( file_exists( TEMPLATEPATH. '/' . $template ) ) {
                    include( TEMPLATEPATH. '/' . $template );
                }else if( file_exists( TEMPLATEPATH. '/category.php' ) ) {
                    include( TEMPLATEPATH. '/category.php' );
                }else{
                    include( TEMPLATEPATH. '/archive.php' );
                }
                exit;
            }
            
        }


        public function refresh_rewrite_rules( $hard = true ) {
            global $wp_rewrite;
            $wp_rewrite->flush_rules();
        }


        public function filter_permalink($permalink, $post, $leavename) {
            if ( strpos( $permalink, '/%'. $post->post_type . '_slug%' ) === FALSE ) 
                return $permalink;

                $terms = wp_get_object_terms( $post->ID, $post->post_type  . '_kategorie' );	
                
                if ( !is_wp_error( $terms ) && !empty( $terms ) && is_object( $terms[0] ) ){
                
                self::$taxonomy_slug = $terms[0]->slug;
            
                    if( count( $terms ) > 1 ){
                        foreach( $terms as $term ){
                            if( $term->parent != 0 )
                                $terms_array[] = $term->slug;
                        }
                        
                        $taxonomy_slug = implode( '/', $terms_array);
                        self::$taxonomy_slug = substr( $taxonomy_slug, 0, strlen( $taxonomy_slug )-1 );
                    }		
                }				
            return str_replace('%'. $post->post_type . '_slug%', self::$taxonomy_slug, $permalink);

        }

        
        public function init_general() {
            foreach( self::$custom_post_types as $post_type => $post_types_array){
                if( $post_types_array['rewrite'] ){ 
                    self::$post_rule = $post_types_array['rewrite'];
                    self::$taxonomy_rule = $post_types_array['rewrite'];
                }
                
                
                $wp_rewrite_rules = self::$wp_rewrite->wp_rewrite_rules();
                if( ! $wp_rewrite_rules[$post_rule] ){
                    add_action( 'init', array( &$this, 'refresh_rewrite_rules' ) );
                } 
                
                $post_rule = str_replace( '%post_type%', $post_type, self::$post_rule );
                $taxonomy_rule = str_replace( '%post_type%', $post_type, self::$taxonomy_rule );
                add_rewrite_rule($post_rule, 'index.php?' . $post_type . '=$matches[2]', 'top');
                add_rewrite_rule($taxonomy_rule, 'index.php?custom_taxonomy_name=$matches[1]&post_type=$matches[2]', 'top');
                self::$wp_rewrite->add_permastruct($post_type . '_category', '%pagename%/%' . $post_type . '_slug%');
            }
        }


        public function print_rewrite_urls(){
                print_r( self::$wp_rewrite->wp_rewrite_rules() );
        }


        public function create_custom_posttypes(){

            foreach( self::$custom_post_types as $post_type => $post_types_array){
                
                register_post_type( $post_type,
                                            array(
                                                'hierarchical'  => true,
                                                'labels'        => array(
                                                                    'name'          => $post_types_array['plural'],
                                                                    'singular_name' => $post_types_array['singular'],
                                                                    'search_items'  => 'Duchrsuchen',
                                                                    'all_items'     => 'Alle ' . $post_types_array['singular'],
                                                                    'edit_item'     => $post_types_array['singular'] . ' berabeiten', 
                                                                    'update_item'   => $post_types_array['singular'] . ' aktualisieren',
                                                                    'add_new_item'  => 'Verfasse eine neue ' . $post_types_array['singular'],
                                                                    'new_item_name' => 'Neue ' . $post_types_array['singular'],
                                                                    'menu_name'     => $post_types_array['plural'],
                                                                    ),
                                            'label' 		    => $post_types_array['plural'],
                                            'public' 			=> true,
                                            'show_ui' 			=> true,
                                            'description' 		=> true,
                                            'supports' 			=> array(
                                                                        'title',
                                                                        'excerpt',
                                                                        'editor',
                                                                        'thumbnail',
                                                                        'revisions'
                                                                    ),
                                            'capability_type'   => 'post',
                                            'query_var'         => true,
                                            'rewrite'           => array('slug' => '%'. $post_type . '_slug%/' . $post_type),
                                            'can_export'        => true,
                                            'taxonomys'         => array($post_type . '_' . $post_types_array['taxonomy']['slug']),
                                            'menu_position'     => 5,
                                           )
                                        );

                foreach( $post_types_array['taxonomy'] as $taxonomy_key => $taxonomy ){	
                    
                     register_taxonomy( $post_type . '_' . $taxonomy['slug'],
                                        array( $post_type, 'nav_menu'), 
                                        array( 'hierarchical' => true,
                                               'labels' => array(
                                                            'name'          => _x( $taxonomy['name'], 'taxonomy general name' ),
                                                            'singular_name' => _x( $taxonomy['name'], 'taxonomy singular name' ),
                                                            'search_items'  =>  __( 'Search ' . $taxonomy['name'] ),
                                                            'all_items'     => __( 'Alle ' . $taxonomy['name'] ),
                                                            'parent_item'   => __( 'Eltern ' . $taxonomy['name'] ),
                                                            'edit_item'     => __( $taxonomy['name'] . ' berabeiten' ), 
                                                            'update_item'   => __( 'Aktualisere ' . $taxonomy['name'] ),
                                                            'add_new_item'  => __( 'Neue ' . $taxonomy['name'] ),
                                                            'new_item_name' => __( 'Neuer ' . $taxonomy['name'] ),
                                                            'menu_name' => __( $taxonomy['name'] ),
                                                        ),
                                                'show_ui' => true,
                                                'query_var' => true,
                                                #'rewrite' => array( 'slug' => $post_type ),
                                        )
                                    );
                }
                self::$post_type = $post_type;			

            }
        }


    }

    new register_custom_post_types();

}