php ci 2.0框架 ORM
很早知道ci出了2.0版本了。这几天正好有项目要用ci开发 虽然项目不大。不过也从开发项目的过程中熟悉了CI框架
因为是个电商项目 本来想用个YII2 的。 封装的虽然厉害不过功能强大 因为另个兄弟坚持所以采用了CI 开搞前特地问了下新版有没ORM(我知道老版没有- -)
被告知有了ORM 结果开发起来发现没有。。 于是自己简单实现了个 不吐槽了 直接上代码吧。。。
<?php class Orm_Model extends MY_Model{ protected $pk = ‘id‘; protected $_isNew = false; protected $_ID = null; protected $_tableName; protected $_arRelationMap; protected $_DB; protected $_attrs = array(); public function __consturct(){ parent::__construct(); $this->_tableName = $this->getTableName(); $this->_arRelationMap = $this->getRelationMap(); } protected function getTableName(){} protected function getRelationMap(){} public function getAttr(){ return $this->_attrs; } public function find( $condition ){ $keys = implode( ‘`,`‘, array_keys( $this->getRelationMap() )); $ret = $this->db_r->select($keys)->where( $condition )->limit(1)->get( $this->getTableName() ); $this->_attrs = $ret->row_array(); if( empty( $this->_attrs[$this->pk] ) ) $this->_isNew = true; return $this; } public function save(){ $pKey = (isset( $this->_attrs[$this->pk] ) && !empty( $this->_attrs[$this->pk] )) ? $this->_attrs[$this->pk] : ‘‘; if( empty( $pKey ) || $this->_isNew ){ return $this->db_w->insert( $this->getTableName() , $this->_attrs ); }else{ $this->db_w->where( $this->pk , $pKey ); return $this->db_w->update( $this->getTableName(), $this->_attrs ); } } public function __call($method,$param){ $type = substr($method,0,3); $member = substr($method,4); switch($type){ case ‘get‘: return $this->getMember($member); break; case ‘set‘: return $this->setMember($member,$param[0]); } return false; } public function setMember($key , $val){ if( !$this->checkAttr($key) ) return false; $this->_attrs[$key] = $val; } public function getMember($key){ $ret = null; if( $this->checkAttr($key) ) $ret = isset( $this->_attrs[$key] ) ? $this->_attrs[$key] : ‘‘; return $ret; } private function checkAttr( $key ){ $ret = true; $rel = $this->getRelationMap(); if( !array_key_exists( $key, $rel ) ) $ret = false; return $ret; } public function del(){ $pKey = isset( $this->_attrs[$this->pk] ) ? $this->_attrs[$this->pk] : ‘‘; if( !empty( $pKey ) ){ return $this->db_w->delete( $this->getTableName() , array($this->pk =>$pKey)); } return false; } } ?>
使用:
model:
<?php class User_model extends Orm_Model { protected $pk = ‘id‘; public function __construct() { parent::__construct(); } public function getRelationMap(){ return array( ‘id‘ => ‘ID‘, ‘user_name‘=> ‘USER_ID‘, ‘user_passwd‘ => ‘CART_INFO‘, ‘email‘ => ‘TOTAL_PRICE‘, ‘mobile‘ => ‘UPDATE_TIME‘, ‘point‘ => ‘ADD_TIME‘, ‘last_login_ip‘ => ‘STATUS‘, ‘add_time‘ => ‘STATUS‘ ); } public function getTableName(){ return ‘user‘; } }
<?php /** * * Enter description here ... * @author Administrator * */ class User_service { function __construct(){ $this->Obj = &get_instance(); $this->Obj->load->model(‘user_model‘); $this->user_model = $this->Obj->user_model; } public function login( $params ){ $this->user_model->find(array(‘user_name‘=> $params[‘user_name‘] ) ); // xxxxxx } }
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