ThinkPHP 3.2.3 試圖模型的手冊(cè)地址是：http://www.kancloud.cn/manual/thinkphp/1781

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實(shí)例

需求：在博客列表頁(yè)讀取博客的（id、標(biāo)題、摘要、發(fā)布時(shí)間、點(diǎn)擊次數(shù)）等信息以及該篇博文所屬分類的（分類名）等信息

數(shù)據(jù)表：

crm_blog

+---------+----------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------+----------------------+------+-----+---------+----------------+ | id | int(10) unsigned | NO | PRI | NULL | auto_increment | | title | varchar(30) | NO | | | | | summary | varchar(255) | NO | | | | | content | text | NO | | NULL | | | time | int(10) unsigned | NO | | 0 | | | click | smallint(6) unsigned | NO | | 0 | | | cid | int(10) unsigned | NO | MUL | NULL | | | del | tinyint(1) unsigned | NO | | 0 | | +---------+----------------------+------+-----+---------+----------------+

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crm_cate

+-------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+------------------+------+-----+---------+----------------+ | id | int(10) unsigned | NO | PRI | NULL | auto_increment | | name | char(20) | NO | | | | | pid | int(10) unsigned | NO | MUL | 0 | | | sort | smallint(6) | NO | | 100 | | +-------+------------------+------+-----+---------+----------------+

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crm_blog 和 crm_cate 是多對(duì)一的關(guān)系（BELONGS_TO）

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在 Home 模塊的 Model（./Application/Home/Model）下創(chuàng)建 BlogViewModel.class.php

<?php namespace Home\Model; use Think\Model\ViewModel; /** 視圖模型*/class BlogViewModel extends ViewModel{protected $viewFields = array('blog'=>array('id','title','summary','click','time','_type'=>'LEFT' //關(guān)聯(lián)方式，默認(rèn)是 INNER),'cate'=>array('name'=>'cate_name','_on'=>'blog.cid = cate.id' //關(guān)聯(lián)條件 ));public function get_all($where,$limit) {return $this->where($where)->limit($limit)->select();} }

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控制器 ./Application/Home/Controller/ListController.class.php

<?php namespace Home\Controller; use Think\Controller; use Admin\Common\Category; use Think\Page;class ListController extends Controller{//列表頁(yè)public function index() {$id = (int)$_GET['id'];$cate = M('cate')->order('sort')->select();//分類名稱$this->cate_name = M('cate')->where(array('id'=>$id))->getField('name');//通過(guò)父id遞歸查出子id$cids = Category::get_children_id($cate, $id);$cids[] = $id;//分頁(yè)$where = array('cid'=>array('IN',$cids)); $count = M('blog')->where($where)->count(); $page = new Page($count,1);$limit = $page->firstRow.','.$page->listRows;$this->page = $page->show();//使用試圖模型$this->blog = D('BlogView')->get_all($where,$limit);//echo D('BlogView')->getLastSql();//一條聯(lián)合查詢語(yǔ)句 SELECT blog.id AS id,blog.title AS title,blog.summary AS summary,blog.click AS click,blog.time AS time,cate.name AS cate_name FROM crm_blog blog LEFT JOIN crm_cate cate ON blog.cid = cate.id WHERE `cid` IN ('13','12','11',4)$this->display();} }

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缺陷：在列表頁(yè)分頁(yè)完成之后，分頁(yè)的鏈接并不是 URL 重寫之后的鏈接，待改進(jìn)。　　

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