<?php
require_once('DAO.php');

class NewsDAO extends DAO {
	private $newsTable = 'news';
	private $newsCategoryTable = 'news_categories';

	function __construct() {
		$this->pdo = new DB_Access(ENUM::DBLocate, ENUM::DBName, ENUM::DBUser, ENUM::DBPassword);
	}

	/**
	 * 取得最新消息列表
	 *
	 * @param [int] $pages 第幾頁
	 * @param [int] $limit 每頁筆數
	 * @return array
	 */
	function getNewsList($pages, $limit){
		$pagesStr = '';
		// $start = ($pages-1)*$limit;

		// $pagesStr.= ' LIMIT :pages , :limit';
		$paramArr = array();
		// $paramArr['pages'] = $start;
		// $paramArr['limit'] = $limit;

		$sqlStr = " SELECT n.uuid, n.title, n.news_source, n.publish_date, c.title as category FROM ".$this->newsTable." n LEFT JOIN ".$this->newsCategoryTable." c ON n.category_id = c.uuid WHERE n.status = 1 ORDER BY n.publish_date DESC ".$pagesStr." ; ";
		return $this->pdo->execute($sqlStr, $paramArr);
	}

	/**
	 * 取得最新消息內容
	 *
	 * @param [int] $dataId 最新消息 id
	 * @return array
	 */
	function getNewsContent($dataId){
		$sqlStr = " SELECT uuid, title, news_image, news_image_alt, news_image2, news_image_alt2, news_content, publish_date, news_source FROM ".$this->newsTable." WHERE uuid = :id ";
		return $this->pdo->execute($sqlStr, array('id'=>$dataId));
	}


	/**
	 * 依名稱取得分類內容
	 *
	 * @param string $title
	 * @return array
	 */
	function getNewsCategoryByTitle($title){
		$sqlStr = " SELECT uuid, title FROM ".$this->newsCategoryTable." WHERE title = :title ";
		return $this->pdo->execute($sqlStr, array('title'=>$title));
	}

	/**
	 * 寫入分類資料
	 *
	 * @param array $dataArray
	 * @return boolean
	 */
	function addCategoryData($dataArray){
		$this->pdo->insert($this->newsCategoryTable, $dataArray);
		if ( !is_null($this->pdo->getLastId()) && $this->pdo->getLastId() != 0 ){
			return $this->pdo->getLastId();
		}
		return false;
	}

	/**
	 * 寫入最新消息資料
	 *
	 * @param array $dataArray
	 * @return boolean
	 */
	function addNewsData($dataArray){
		$this->pdo->insert($this->newsTable, $dataArray);
		if ( !is_null($this->pdo->getLastId()) && $this->pdo->getLastId() != 0 ){
			return $this->pdo->getLastId();
		}
		return false;
	}


	function transaction(){
		$this->pdo->transaction();
	}

	function rollbackDB(){
		$this->pdo->rollbackDB();
	}

	function commitDB(){
		$this->pdo->commitDB();
	}

	function closeDB(){
		$this->pdo->closeDB();
	}

	function getLastId(){
		$this->pdo->getLastId();
	}
}
?>