<?php
namespace Westdc\Visual;

use Westdc\Visual\VisualListener;

class Visual
{
	public $db;
	
	function __construct($recordType)
	{
		$this->db = \Zend_Registry::get('db');
		$Listener = new Listener();
		@$this->getEventManager()->attachAggregate($Listener);
		
	}
	
	public function getEventManager(\Zend_EventManager_EventCollection $events = NULL)
    {
        if ($events !== NULL) {
            $this->events = $events;
        } elseif ($this->events === NULL) {
            $this->events = new \Zend_EventManager_EventManager(__CLASS__);
        }
        return $this->events;
    }
	
	//添加
	public function add($data,$id = 0)
	{
		$params = compact('data');
        $results = $this->getEventManager()->trigger('submit.checkParam', $this, $params);
		$cache_data = $results->last();
		
		if($cache_data !== true)
		{
			return $cache_data;
		}
		
		$results = $this->getEventManager()->trigger('submit.processData', $this, $params);
		$data = $results->last();
		
		$dbh = new dbh();
		
		if(empty($id))
		{
			$id = $dbh->insert($this->mainTable,$data,true);
			
			if(!empty($id) && is_numeric($id))
			{
				$this->getEventManager()->trigger('submit.recordPosted', $this, $params);
				return true;
			}else{
				if($id === false)
				{
					return '服务器开小差了，请稍后再试';
				}else{
					return '服务器处理中遇到错误，请联系管理员';
				}
			}
		}//add
		
		else{
			if(!$dbh->update($this->mainTable,$data," id=$id ",true))
			{
				$this->getEventManager()->trigger('submit.recordChanged', $this, $params);
				return "修改失败!请重试";
			}else{
				return true;
			}
		}//edit
		
	}// add()
	
	//删除
	public function del($id)
	{
		if(!is_numeric($id) || empty($id) || $id< 0)
		{
			return false;
		}
		
		$sql = "DELETE FROM {$this->mainTable} WHERE id=$id";
		return $this->db->exec($sql);
	}
}