Pimp My シリーズの便利関数をまとめたクラス

class-pm.php

<?php
if ( ! class_exists( 'PM' ) ) {
class PM {

    public function get_theme_directory( $file, $childonly=false ) {
        $located = '';
        
        $file = trim( $file, '/' );
    
        if ( file_exists( STYLESHEETPATH . '/' . $file ) )
            $located = get_stylesheet_directory() . '/' . $file;
        else if ( ! $childonly && file_exists( TEMPLATEPATH . '/' . $file ) )
            $located = get_template_directory() . '/' . $file;
        
        return $located;
    }
    
    public function get_theme_uri( $file, $childonly=false ) {
        $located = '';
        
        $file = trim( $file, '/' );
    
        if ( file_exists( STYLESHEETPATH . '/' . $file ) )
            $located = get_stylesheet_directory_uri() . '/' . $file;
        else if ( ! $childonly && file_exists( TEMPLATEPATH . '/' . $file ) )
            $located = get_template_directory_uri() . '/' . $file;
        
        return $located;
    }

    public function realuri( $path ) {
        $base = '';
        $file = str_replace( "\\", '/', __FILE__ );

        $dirs = array(
            get_stylesheet_directory()  => get_stylesheet_directory_uri()
          , get_template_directory()    => get_template_directory_uri()
        );
        
        foreach ( $dirs as $dir => $uri ) {
            $dir_ = str_replace( "\\", '/', $dir );

            if( 0 === strpos( $file, $dir_ ) ) {
                $folder = str_replace( $dir_, '', dirname( $file ) );
                $base   = $uri . $folder;
                break;          
            }
        }
        
        if ( empty( $base ) )
            $base = trim( plugin_dir_url( $file ), '/' );   

        return trailingslashit( $base ) . trim( $path, '/' );
    }   

    public function get_post_by( $field, $value, $post_type='post' ) {
        global $wpdb;

        switch( $field ) {
            case 'id':
                $field = 'p.ID';
                break;
            case 'slug':
            case 'name':
                $field = 'p.post_name';
                break;
            case 'title':
                $field = 'p.post_title';
                break;
            default:
                return false;
        }
        
        $key   = $post_type . $field . $value;
        $_post = wp_cache_get( $key, 'posts' );

        if ( ! $_post ) {
            $_post = $wpdb->get_row( $wpdb->prepare( 
                "SELECT * FROM $wpdb->posts AS p WHERE p.post_type=%s AND $field=%s AND p.post_status=%s"
              . " ORDER BY p.post_date DESC LIMIT 1"
              , $post_type
              , $value
              , 'publish'
            ) );

            if ( ! $_post )
                return false;

            $_post = sanitize_post( $_post, 'raw' );
            wp_cache_add( $key, $_post, 'posts' );
        } elseif ( empty( $_post->filter ) ) {
            $_post = sanitize_post( $_post, 'raw' );
        }

        return new WP_Post( $_post );
    }

}
}