railpage/railpagecore

<?php

/**
 * Locomotive status
 * @since Version 3.9.1
 * @package Railpage
 * @author Michael Greenhill
 */

namespace Railpage\Locos;

use Railpage\Debug;
use Railpage\AppCore;
use Railpage\Url;
use Railpage\Glossary\Entry;
use Exception;
use InvalidArgumentException;

class Status extends AppCore {
    
    /**
     * Status ID
     * @since Version 3.9.1
     * @var int $id
     */
    
    public $id;
    
    /**
     * Status name
     * @since Version 3.9.1
     * @var string $text
     */
    
    public $name;
    
    /**
     * Constructor
     * @since Version 3.9.1
     * @param int $status_id
     * @return void
     */
    
    public function __construct($id = false) {
        
        parent::__construct(); 
        
        if ($id = filter_var($id, FILTER_VALIDATE_INT)) {
            $this->id = $id;
            $this->mckey = sprintf("railpage:locos.status=%d", $this->id); 
            $this->populate(); 
        }
        
        return;
    }
    
    /**
     * Populate this object
     * @since Version 3.9.1
     * @return void
     */
    
    private function populate() {
        
        if (!$row = $this->Memcached->fetch($this->mckey)) {
            $query = "SELECT id, name FROM loco_status WHERE id = ?";
            $row = $this->db->fetchRow($query, $this->id); 
            $this->Memcached->save($this->mckey, $row, strtotime("+1 year")); 
        }
        
        $this->name = $row['name']; 
        
        return;
    }
    
    /**
     * Validate changes to this object
     * @since Version 3.9.1
     * @return void
     */
     
    private function validate() {
        if (empty($this->name)) {
            throw new Exception("Name cannot be empty"); 
        }
        
        return true;
    }
    
    /**
     * Commit changes to this status
     * @since Version 3.9.1
     * @return \Railpage\Locos\Status
     */
    
    public function commit() {
        
        $this->validate();
        
        $data = [
            "name" => $this->name
        ];
        
        if (filter_var($this->id, FILTER_VALIDATE_INT)) {
            $where = [ "id = ?" => $this->id ];
            $this->db->update("loco_status", $data, $where); 
            $this->Memcached->delete($this->mckey); 
        } else {
            $this->db->insert("loco_status", $data); 
            $this->id = $this->db->lastInsertId(); 
        }
        
        return $this;
    }
    
    /**
     * Return the string value of this object
     * @since Version 3.9.1
     * @return string
     */
    
    public function __toString() {
        
        return $this->name; 
        
    }
}