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1487 lines
49 KiB
PHP
1487 lines
49 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace Think;
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/**
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* ThinkPHP Model模型类
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* 实现了ORM和ActiveRecords模式
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*/
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class Model {
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// 当前数据库操作对象
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protected $db = null;
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// 数据库对象池
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private $_db = array();
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// 主键名称
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protected $pk = 'id';
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// 主键是否自动增长
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protected $autoinc = false;
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// 数据表前缀
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protected $tablePrefix = null;
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// 模型名称
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protected $name = '';
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// 数据库名称
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protected $dbName = '';
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//数据库配置
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protected $connection = '';
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// 数据表名（不包含表前缀）
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protected $tableName = '';
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// 实际数据表名（包含表前缀）
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protected $trueTableName = '';
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// 最近错误信息
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protected $error = '';
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// 字段信息
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protected $fields = array();
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// 数据信息
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protected $data = array();
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// 查询表达式参数
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protected $options = array();
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protected $_validate = array(); // 自动验证定义
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protected $_auto = array(); // 自动完成定义
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protected $_map = array(); // 字段映射定义
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protected $_scope = array(); // 命名范围定义
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// 是否自动检测数据表字段信息
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protected $autoCheckFields = true;
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// 是否批处理验证
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protected $patchValidate = false;
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// 链操作方法列表
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protected $methods = array('strict','order','alias','having','group','lock','distinct','auto','filter','validate','result','token','index','force');
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/**
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* 架构函数
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* 取得DB类的实例对象 字段检查
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* @access public
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* @param string $name 模型名称
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* @param string $tablePrefix 表前缀
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* @param mixed $connection 数据库连接信息
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*/
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public function __construct($name='',$tablePrefix='',$connection='') {
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// 模型初始化
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$this->_initialize();
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// 获取模型名称
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if(!empty($name)) {
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if(strpos($name,'.')) { // 支持 数据库名.模型名的 定义
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list($this->dbName,$this->name) = explode('.',$name);
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}else{
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$this->name = $name;
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}
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}elseif(empty($this->name)){
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$this->name = $this->getModelName();
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}
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// 设置表前缀
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if(is_null($tablePrefix)) {// 前缀为Null表示没有前缀
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$this->tablePrefix = '';
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}elseif('' != $tablePrefix) {
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$this->tablePrefix = $tablePrefix;
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}elseif(!isset($this->tablePrefix)){
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$this->tablePrefix = C('DB_PREFIX');
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}
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// 数据库初始化操作
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// 获取数据库操作对象
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// 当前模型有独立的数据库连接信息
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$this->db(0,empty($this->connection)?$connection:$this->connection,true);
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}
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/**
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* 自动检测数据表信息
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* @access protected
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* @return void
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*/
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protected function _checkTableInfo() {
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// 如果不是Model类 自动记录数据表信息
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// 只在第一次执行记录
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if(empty($this->fields)) {
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// 如果数据表字段没有定义则自动获取
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if(C('DB_FIELDS_CACHE')) {
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$db = $this->dbName?:C('DB_NAME');
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$fields = F('_fields/'.strtolower($db.'.'.$this->tablePrefix.$this->name));
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if($fields) {
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$this->fields = $fields;
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if(!empty($fields['_pk'])){
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$this->pk = $fields['_pk'];
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}
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return ;
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}
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}
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// 每次都会读取数据表信息
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$this->flush();
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}
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}
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/**
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* 获取字段信息并缓存
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* @access public
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* @return void
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*/
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public function flush() {
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// 缓存不存在则查询数据表信息
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$this->db->setModel($this->name);
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$fields = $this->db->getFields($this->getTableName());
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if(!$fields) { // 无法获取字段信息
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return false;
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}
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$this->fields = array_keys($fields);
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unset($this->fields['_pk']);
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foreach ($fields as $key=>$val){
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// 记录字段类型
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$type[$key] = $val['type'];
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if($val['primary']) {
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// 增加复合主键支持
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if (isset($this->fields['_pk']) && $this->fields['_pk'] != null) {
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if (is_string($this->fields['_pk'])) {
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$this->pk = array($this->fields['_pk']);
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$this->fields['_pk'] = $this->pk;
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}
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$this->pk[] = $key;
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$this->fields['_pk'][] = $key;
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} else {
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$this->pk = $key;
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$this->fields['_pk'] = $key;
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}
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if($val['autoinc']) $this->autoinc = true;
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}
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}
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// 记录字段类型信息
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$this->fields['_type'] = $type;
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// 2008-3-7 增加缓存开关控制
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if(C('DB_FIELDS_CACHE')){
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// 永久缓存数据表信息
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$db = $this->dbName?:C('DB_NAME');
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F('_fields/'.strtolower($db.'.'.$this->tablePrefix.$this->name),$this->fields);
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}
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}
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/**
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* 设置数据对象的值
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* @access public
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* @param string $name 名称
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* @param mixed $value 值
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* @return void
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*/
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public function __set($name,$value) {
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// 设置数据对象属性
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$this->data[$name] = $value;
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}
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/**
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* 获取数据对象的值
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* @access public
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* @param string $name 名称
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* @return mixed
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*/
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public function __get($name) {
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return isset($this->data[$name])?$this->data[$name]:null;
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}
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/**
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* 检测数据对象的值
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* @access public
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* @param string $name 名称
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* @return boolean
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*/
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public function __isset($name) {
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return isset($this->data[$name]);
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}
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/**
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* 销毁数据对象的值
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* @access public
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* @param string $name 名称
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* @return void
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*/
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public function __unset($name) {
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unset($this->data[$name]);
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}
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/**
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* 利用__call方法实现一些特殊的Model方法
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* @access public
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* @param string $method 方法名称
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* @param array $args 调用参数
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* @return mixed
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*/
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public function __call($method,$args) {
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if(in_array(strtolower($method),$this->methods,true)) {
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// 连贯操作的实现
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$this->options[strtolower($method)] = $args[0];
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return $this;
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}elseif(in_array(strtolower($method),array('count','sum','min','max','avg'),true)){
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// 统计查询的实现
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$field = isset($args[0])?$args[0]:'*';
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return $this->getField(strtoupper($method).'('.$field.') AS tp_'.$method);
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}elseif(strtolower(substr($method,0,5))=='getby') {
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// 根据某个字段获取记录
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$field = parse_name(substr($method,5));
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$where[$field] = $args[0];
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return $this->where($where)->find();
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}elseif(strtolower(substr($method,0,10))=='getfieldby') {
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// 根据某个字段获取记录的某个值
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$name = parse_name(substr($method,10));
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$where[$name] =$args[0];
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return $this->where($where)->getField($args[1]);
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}elseif(isset($this->_scope[$method])){// 命名范围的单独调用支持
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return $this->scope($method,$args[0]);
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}else{
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E(__CLASS__.':'.$method.L('_METHOD_NOT_EXIST_'));
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return;
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}
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}
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// 回调方法 初始化模型
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protected function _initialize() {}
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/**
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* 对保存到数据库的数据进行处理
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* @access protected
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* @param mixed $data 要操作的数据
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* @return boolean
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*/
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protected function _facade($data) {
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// 检查数据字段合法性
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if(!empty($this->fields)) {
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if(!empty($this->options['field'])) {
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$fields = $this->options['field'];
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unset($this->options['field']);
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if(is_string($fields)) {
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$fields = explode(',',$fields);
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}
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}else{
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$fields = $this->fields;
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}
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foreach ($data as $key=>$val){
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if(!in_array($key,$fields,true)){
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if(!empty($this->options['strict'])){
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E(L('_DATA_TYPE_INVALID_').':['.$key.'=>'.$val.']');
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}
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unset($data[$key]);
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}elseif(is_scalar($val)) {
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// 字段类型检查 和 强制转换
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$this->_parseType($data,$key);
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}
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}
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}
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// 安全过滤
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if(!empty($this->options['filter'])) {
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$data = array_map($this->options['filter'],$data);
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unset($this->options['filter']);
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}
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$this->_before_write($data);
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return $data;
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}
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// 写入数据前的回调方法 包括新增和更新
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protected function _before_write(&$data) {}
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/**
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* 新增数据
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* @access public
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* @param mixed $data 数据
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* @param array $options 表达式
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* @param boolean $replace 是否replace
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* @return mixed
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*/
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public function add($data='',$options=array(),$replace=false) {
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if(empty($data)) {
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// 没有传递数据，获取当前数据对象的值
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if(!empty($this->data)) {
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$data = $this->data;
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// 重置数据
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$this->data = array();
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}else{
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$this->error = L('_DATA_TYPE_INVALID_');
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return false;
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}
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}
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// 数据处理
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$data = $this->_facade($data);
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// 分析表达式
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$options = $this->_parseOptions($options);
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if(false === $this->_before_insert($data,$options)) {
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return false;
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}
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// 写入数据到数据库
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$result = $this->db->insert($data,$options,$replace);
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if(false !== $result && is_numeric($result)) {
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$pk = $this->getPk();
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// 增加复合主键支持
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if (is_array($pk)) return $result;
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$insertId = $this->getLastInsID();
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if($insertId) {
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// 自增主键返回插入ID
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$data[$pk] = $insertId;
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if(false === $this->_after_insert($data,$options)) {
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return false;
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}
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return $insertId;
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}
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if(false === $this->_after_insert($data,$options)) {
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return false;
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}
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}
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return $result;
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}
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// 插入数据前的回调方法
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protected function _before_insert(&$data,$options) {}
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// 插入成功后的回调方法
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protected function _after_insert($data,$options) {}
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public function addAll($dataList,$options=array(),$replace=false){
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if(empty($dataList)) {
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$this->error = L('_DATA_TYPE_INVALID_');
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return false;
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}
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// 数据处理
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foreach ($dataList as $key=>$data){
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$dataList[$key] = $this->_facade($data);
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}
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// 分析表达式
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$options = $this->_parseOptions($options);
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// 写入数据到数据库
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$result = $this->db->insertAll($dataList,$options,$replace);
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if(false !== $result ) {
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$insertId = $this->getLastInsID();
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if($insertId) {
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return $insertId;
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}
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}
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return $result;
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}
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/**
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* 保存数据
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* @access public
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* @param mixed $data 数据
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* @param array $options 表达式
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* @return boolean
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*/
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public function save($data='',$options=array()) {
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if(empty($data)) {
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// 没有传递数据，获取当前数据对象的值
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if(!empty($this->data)) {
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$data = $this->data;
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// 重置数据
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$this->data = array();
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}else{
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$this->error = L('_DATA_TYPE_INVALID_');
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return false;
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}
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}
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// 数据处理
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$data = $this->_facade($data);
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if(empty($data)){
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// 没有数据则不执行
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$this->error = L('_DATA_TYPE_INVALID_');
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return false;
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}
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// 分析表达式
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$options = $this->_parseOptions($options);
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$pk = $this->getPk();
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if(!isset($options['where']) ) {
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// 如果存在主键数据 则自动作为更新条件
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if (is_string($pk) && isset($data[$pk])) {
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$where[$pk] = $data[$pk];
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unset($data[$pk]);
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} elseif (is_array($pk)) {
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// 增加复合主键支持
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foreach ($pk as $field) {
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if(isset($data[$field])) {
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$where[$field] = $data[$field];
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} else {
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// 如果缺少复合主键数据则不执行
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$this->error = L('_OPERATION_WRONG_');
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return false;
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}
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unset($data[$field]);
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}
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}
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if(!isset($where)){
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// 如果没有任何更新条件则不执行
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$this->error = L('_OPERATION_WRONG_');
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return false;
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}else{
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$options['where'] = $where;
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}
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}
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if(is_array($options['where']) && isset($options['where'][$pk])){
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$pkValue = $options['where'][$pk];
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}
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if(false === $this->_before_update($data,$options)) {
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return false;
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}
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$result = $this->db->update($data,$options);
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if(false !== $result && is_numeric($result)) {
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if(isset($pkValue)) $data[$pk] = $pkValue;
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$this->_after_update($data,$options);
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}
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return $result;
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}
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// 更新数据前的回调方法
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protected function _before_update(&$data,$options) {}
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// 更新成功后的回调方法
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protected function _after_update($data,$options) {}
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/**
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* 删除数据
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* @access public
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* @param mixed $options 表达式
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* @return mixed
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*/
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public function delete($options=array()) {
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$pk = $this->getPk();
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if(empty($options) && empty($this->options['where'])) {
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// 如果删除条件为空 则删除当前数据对象所对应的记录
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if(!empty($this->data) && isset($this->data[$pk]))
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return $this->delete($this->data[$pk]);
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else
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return false;
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}
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if(is_numeric($options) || is_string($options)) {
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// 根据主键删除记录
|
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if(strpos($options,',')) {
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$where[$pk] = array('IN', $options);
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}else{
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$where[$pk] = $options;
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}
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$options = array();
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$options['where'] = $where;
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}
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// 根据复合主键删除记录
|
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if (is_array($options) && (count($options) > 0) && is_array($pk)) {
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$count = 0;
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foreach (array_keys($options) as $key) {
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if (is_int($key)) $count++;
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}
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if ($count == count($pk)) {
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$i = 0;
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foreach ($pk as $field) {
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$where[$field] = $options[$i];
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unset($options[$i++]);
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}
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$options['where'] = $where;
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} else {
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return false;
|
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}
|
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}
|
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// 分析表达式
|
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$options = $this->_parseOptions($options);
|
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if(empty($options['where'])){
|
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// 如果条件为空 不进行删除操作 除非设置 1=1
|
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return false;
|
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}
|
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if(is_array($options['where']) && isset($options['where'][$pk])){
|
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$pkValue = $options['where'][$pk];
|
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}
|
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|
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if(false === $this->_before_delete($options)) {
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return false;
|
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}
|
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$result = $this->db->delete($options);
|
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if(false !== $result && is_numeric($result)) {
|
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$data = array();
|
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if(isset($pkValue)) $data[$pk] = $pkValue;
|
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$this->_after_delete($data,$options);
|
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}
|
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// 返回删除记录个数
|
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return $result;
|
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}
|
|
// 删除数据前的回调方法
|
|
protected function _before_delete($options) {}
|
|
// 删除成功后的回调方法
|
|
protected function _after_delete($data,$options) {}
|
|
|
|
/**
|
|
* 查询数据集
|
|
* @access public
|
|
* @param array $options 表达式参数
|
|
* @return mixed
|
|
*/
|
|
public function select($options=array()) {
|
|
$pk = $this->getPk();
|
|
if(is_string($options) || is_numeric($options)) {
|
|
// 根据主键查询
|
|
if(strpos($options,',')) {
|
|
$where[$pk] = array('IN',$options);
|
|
}else{
|
|
$where[$pk] = $options;
|
|
}
|
|
$options = array();
|
|
$options['where'] = $where;
|
|
}elseif (is_array($options) && (count($options) > 0) && is_array($pk)) {
|
|
// 根据复合主键查询
|
|
$count = 0;
|
|
foreach (array_keys($options) as $key) {
|
|
if (is_int($key)) $count++;
|
|
}
|
|
if ($count == count($pk)) {
|
|
$i = 0;
|
|
foreach ($pk as $field) {
|
|
$where[$field] = $options[$i];
|
|
unset($options[$i++]);
|
|
}
|
|
$options['where'] = $where;
|
|
} else {
|
|
return false;
|
|
}
|
|
} elseif(false === $options){ // 用于子查询 不查询只返回SQL
|
|
$options = array();
|
|
// 分析表达式
|
|
$options = $this->_parseOptions($options);
|
|
return '( '.$this->fetchSql(true)->select($options).' )';
|
|
}
|
|
// 分析表达式
|
|
$options = $this->_parseOptions($options);
|
|
// 判断查询缓存
|
|
if(isset($options['cache'])){
|
|
$cache = $options['cache'];
|
|
$key = is_string($cache['key'])?$cache['key']:md5(serialize($options));
|
|
$data = S($key,'',$cache);
|
|
if(false !== $data){
|
|
return $data;
|
|
}
|
|
}
|
|
$resultSet = $this->db->select($options);
|
|
if(false === $resultSet) {
|
|
return false;
|
|
}
|
|
if(empty($resultSet)) { // 查询结果为空
|
|
return null;
|
|
}
|
|
|
|
if(is_string($resultSet)){
|
|
return $resultSet;
|
|
}
|
|
|
|
$resultSet = array_map(array($this,'_read_data'),$resultSet);
|
|
$this->_after_select($resultSet,$options);
|
|
if(isset($options['index'])){ // 对数据集进行索引
|
|
$index = explode(',',$options['index']);
|
|
foreach ($resultSet as $result){
|
|
$_key = $result[$index[0]];
|
|
if(isset($index[1]) && isset($result[$index[1]])){
|
|
$cols[$_key] = $result[$index[1]];
|
|
}else{
|
|
$cols[$_key] = $result;
|
|
}
|
|
}
|
|
$resultSet = $cols;
|
|
}
|
|
if(isset($cache)){
|
|
S($key,$resultSet,$cache);
|
|
}
|
|
return $resultSet;
|
|
}
|
|
// 查询成功后的回调方法
|
|
protected function _after_select(&$resultSet,$options) {}
|
|
|
|
/**
|
|
* 分析表达式
|
|
* @access protected
|
|
* @param array $options 表达式参数
|
|
* @return array
|
|
*/
|
|
protected function _parseOptions($options=array()) {
|
|
if(is_array($options))
|
|
$options = array_merge($this->options,$options);
|
|
|
|
if(!isset($options['table'])){
|
|
// 自动获取表名
|
|
$options['table'] = $this->getTableName();
|
|
$fields = $this->fields;
|
|
}else{
|
|
// 指定数据表 则重新获取字段列表 但不支持类型检测
|
|
$fields = $this->getDbFields();
|
|
}
|
|
|
|
// 数据表别名
|
|
if(!empty($options['alias'])) {
|
|
$options['table'] .= ' '.$options['alias'];
|
|
}
|
|
// 记录操作的模型名称
|
|
$options['model'] = $this->name;
|
|
|
|
// 字段类型验证
|
|
if(isset($options['where']) && is_array($options['where']) && !empty($fields) && !isset($options['join'])) {
|
|
// 对数组查询条件进行字段类型检查
|
|
foreach ($options['where'] as $key=>$val){
|
|
$key = trim($key);
|
|
if(in_array($key,$fields,true)){
|
|
if(is_scalar($val)) {
|
|
$this->_parseType($options['where'],$key);
|
|
}
|
|
}elseif(!is_numeric($key) && '_' != substr($key,0,1) && false === strpos($key,'.') && false === strpos($key,'(') && false === strpos($key,'|') && false === strpos($key,'&')){
|
|
if(!empty($this->options['strict'])){
|
|
E(L('_ERROR_QUERY_EXPRESS_').':['.$key.'=>'.$val.']');
|
|
}
|
|
unset($options['where'][$key]);
|
|
}
|
|
}
|
|
}
|
|
// 查询过后清空sql表达式组装 避免影响下次查询
|
|
$this->options = array();
|
|
// 表达式过滤
|
|
$this->_options_filter($options);
|
|
return $options;
|
|
}
|
|
// 表达式过滤回调方法
|
|
protected function _options_filter(&$options) {}
|
|
|
|
/**
|
|
* 数据类型检测
|
|
* @access protected
|
|
* @param mixed $data 数据
|
|
* @param string $key 字段名
|
|
* @return void
|
|
*/
|
|
protected function _parseType(&$data,$key) {
|
|
if(!isset($this->options['bind'][':'.$key]) && isset($this->fields['_type'][$key])){
|
|
$fieldType = strtolower($this->fields['_type'][$key]);
|
|
if(false !== strpos($fieldType,'enum')){
|
|
// 支持ENUM类型优先检测
|
|
}elseif(false === strpos($fieldType,'bigint') && false !== strpos($fieldType,'int')) {
|
|
$data[$key] = intval($data[$key]);
|
|
}elseif(false !== strpos($fieldType,'float') || false !== strpos($fieldType,'double')){
|
|
$data[$key] = floatval($data[$key]);
|
|
}elseif(false !== strpos($fieldType,'bool')){
|
|
$data[$key] = (bool)$data[$key];
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 数据读取后的处理
|
|
* @access protected
|
|
* @param array $data 当前数据
|
|
* @return array
|
|
*/
|
|
protected function _read_data($data) {
|
|
// 检查字段映射
|
|
if(!empty($this->_map) && C('READ_DATA_MAP')) {
|
|
foreach ($this->_map as $key=>$val){
|
|
if(isset($data[$val])) {
|
|
$data[$key] = $data[$val];
|
|
unset($data[$val]);
|
|
}
|
|
}
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* 查询数据
|
|
* @access public
|
|
* @param mixed $options 表达式参数
|
|
* @return mixed
|
|
*/
|
|
public function find($options=array()) {
|
|
if(is_numeric($options) || is_string($options)) {
|
|
$where[$this->getPk()] = $options;
|
|
$options = array();
|
|
$options['where'] = $where;
|
|
}
|
|
// 根据复合主键查找记录
|
|
$pk = $this->getPk();
|
|
if (is_array($options) && (count($options) > 0) && is_array($pk)) {
|
|
// 根据复合主键查询
|
|
$count = 0;
|
|
foreach (array_keys($options) as $key) {
|
|
if (is_int($key)) $count++;
|
|
}
|
|
if ($count == count($pk)) {
|
|
$i = 0;
|
|
foreach ($pk as $field) {
|
|
$where[$field] = $options[$i];
|
|
unset($options[$i++]);
|
|
}
|
|
$options['where'] = $where;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
// 总是查找一条记录
|
|
$options['limit'] = 1;
|
|
// 分析表达式
|
|
$options = $this->_parseOptions($options);
|
|
// 判断查询缓存
|
|
if(isset($options['cache'])){
|
|
$cache = $options['cache'];
|
|
$key = is_string($cache['key'])?$cache['key']:md5(serialize($options));
|
|
$data = S($key,'',$cache);
|
|
if(false !== $data){
|
|
$this->data = $data;
|
|
return $data;
|
|
}
|
|
}
|
|
$resultSet = $this->db->select($options);
|
|
if(false === $resultSet) {
|
|
return false;
|
|
}
|
|
if(empty($resultSet)) {// 查询结果为空
|
|
return null;
|
|
}
|
|
if(is_string($resultSet)){
|
|
return $resultSet;
|
|
}
|
|
|
|
// 读取数据后的处理
|
|
$data = $this->_read_data($resultSet[0]);
|
|
$this->_after_find($data,$options);
|
|
$this->data = $data;
|
|
if(isset($cache)){
|
|
S($key,$data,$cache);
|
|
}
|
|
return $this->data;
|
|
}
|
|
// 查询成功的回调方法
|
|
protected function _after_find(&$result,$options) {}
|
|
|
|
/**
|
|
* 设置记录的某个字段值
|
|
* 支持使用数据库字段和方法
|
|
* @access public
|
|
* @param string|array $field 字段名
|
|
* @param string $value 字段值
|
|
* @return boolean
|
|
*/
|
|
public function setField($field,$value='') {
|
|
if(is_array($field)) {
|
|
$data = $field;
|
|
}else{
|
|
$data[$field] = $value;
|
|
}
|
|
return $this->save($data);
|
|
}
|
|
|
|
/**
|
|
* 字段值增长
|
|
* @access public
|
|
* @param string $field 字段名
|
|
* @param integer $step 增长值
|
|
* @param integer $lazyTime 延时时间(s)
|
|
* @return boolean
|
|
*/
|
|
public function setInc($field,$step=1) {
|
|
return $this->setField($field,array('exp',$field.'+'.$step));
|
|
}
|
|
|
|
/**
|
|
* 字段值减少
|
|
* @access public
|
|
* @param string $field 字段名
|
|
* @param integer $step 减少值
|
|
* @param integer $lazyTime 延时时间(s)
|
|
* @return boolean
|
|
*/
|
|
public function setDec($field,$step=1) {
|
|
return $this->setField($field,array('exp',$field.'-'.$step));
|
|
}
|
|
|
|
/**
|
|
* 获取一条记录的某个字段值
|
|
* @access public
|
|
* @param string $field 字段名
|
|
* @param string $spea 字段数据间隔符号 NULL返回数组
|
|
* @return mixed
|
|
*/
|
|
public function getField($field,$sepa=null) {
|
|
$options['field'] = $field;
|
|
$options = $this->_parseOptions($options);
|
|
// 判断查询缓存
|
|
if(isset($options['cache'])){
|
|
$cache = $options['cache'];
|
|
$key = is_string($cache['key'])?$cache['key']:md5($sepa.serialize($options));
|
|
$data = S($key,'',$cache);
|
|
if(false !== $data){
|
|
return $data;
|
|
}
|
|
}
|
|
$field = trim($field);
|
|
if(strpos($field,',') && false !== $sepa) { // 多字段
|
|
if(!isset($options['limit'])){
|
|
$options['limit'] = is_numeric($sepa)?$sepa:'';
|
|
}
|
|
$resultSet = $this->db->select($options);
|
|
if(!empty($resultSet)) {
|
|
$_field = explode(',', $field);
|
|
$field = array_keys($resultSet[0]);
|
|
$key1 = array_shift($field);
|
|
$key2 = array_shift($field);
|
|
$cols = array();
|
|
$count = count($_field);
|
|
foreach ($resultSet as $result){
|
|
$name = $result[$key1];
|
|
if(2==$count) {
|
|
$cols[$name] = $result[$key2];
|
|
}else{
|
|
$cols[$name] = is_string($sepa)?implode($sepa,array_slice($result,1)):$result;
|
|
}
|
|
}
|
|
if(isset($cache)){
|
|
S($key,$cols,$cache);
|
|
}
|
|
return $cols;
|
|
}
|
|
}else{ // 查找一条记录
|
|
// 返回数据个数
|
|
if(true !== $sepa) {// 当sepa指定为true的时候 返回所有数据
|
|
$options['limit'] = is_numeric($sepa)?$sepa:1;
|
|
}
|
|
$result = $this->db->select($options);
|
|
if(!empty($result)) {
|
|
if(true !== $sepa && 1==$options['limit']) {
|
|
$data = reset($result[0]);
|
|
if(isset($cache)){
|
|
S($key,$data,$cache);
|
|
}
|
|
return $data;
|
|
}
|
|
foreach ($result as $val){
|
|
$array[] = $val[$field];
|
|
}
|
|
if(isset($cache)){
|
|
S($key,$array,$cache);
|
|
}
|
|
return $array;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* 创建数据对象 但不保存到数据库
|
|
* @access public
|
|
* @param mixed $data 创建数据
|
|
* @return mixed
|
|
*/
|
|
public function create($data='') {
|
|
// 如果没有传值默认取POST数据
|
|
if(empty($data)) {
|
|
$data = I('post.');
|
|
}elseif(is_object($data)){
|
|
$data = get_object_vars($data);
|
|
}
|
|
// 验证数据
|
|
if(empty($data) || !is_array($data)) {
|
|
$this->error = L('_DATA_TYPE_INVALID_');
|
|
return false;
|
|
}
|
|
|
|
// 检测提交字段的合法性
|
|
if(isset($this->options['field'])) { // $this->field('field1,field2...')->create()
|
|
$fields = $this->options['field'];
|
|
unset($this->options['field']);
|
|
}
|
|
if(isset($fields)) {
|
|
if(is_string($fields)) {
|
|
$fields = explode(',',$fields);
|
|
}
|
|
}
|
|
|
|
// 验证完成生成数据对象
|
|
if($this->autoCheckFields) { // 开启字段检测 则过滤非法字段数据
|
|
$fields = $this->getDbFields();
|
|
foreach ($data as $key=>$val){
|
|
if(!in_array($key,$fields)) {
|
|
unset($data[$key]);
|
|
}elseif(MAGIC_QUOTES_GPC && is_string($val)){
|
|
$data[$key] = stripslashes($val);
|
|
}
|
|
}
|
|
}
|
|
|
|
// 赋值当前数据对象
|
|
$this->data = $data;
|
|
// 返回创建的数据以供其他调用
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* 使用正则验证数据
|
|
* @access public
|
|
* @param string $value 要验证的数据
|
|
* @param string $rule 验证规则
|
|
* @return boolean
|
|
*/
|
|
public function regex($value,$rule) {
|
|
$validate = array(
|
|
'require' => '/\S+/',
|
|
'email' => '/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/',
|
|
'url' => '/^http(s?):\/\/(?:[A-za-z0-9-]+\.)+[A-za-z]{2,4}(:\d+)?(?:[\/\?#][\/=\?%\-&~`@[\]\':+!\.#\w]*)?$/',
|
|
'currency' => '/^\d+(\.\d+)?$/',
|
|
'number' => '/^\d+$/',
|
|
'zip' => '/^\d{6}$/',
|
|
'integer' => '/^[-\+]?\d+$/',
|
|
'double' => '/^[-\+]?\d+(\.\d+)?$/',
|
|
'english' => '/^[A-Za-z]+$/',
|
|
);
|
|
// 检查是否有内置的正则表达式
|
|
if(isset($validate[strtolower($rule)]))
|
|
$rule = $validate[strtolower($rule)];
|
|
return preg_match($rule,$value)===1;
|
|
}
|
|
|
|
/**
|
|
* 验证数据 支持 in between equal length regex expire ip_allow ip_deny
|
|
* @access public
|
|
* @param string $value 验证数据
|
|
* @param mixed $rule 验证表达式
|
|
* @param string $type 验证方式 默认为正则验证
|
|
* @return boolean
|
|
*/
|
|
public function check($value,$rule,$type='regex'){
|
|
$type = strtolower(trim($type));
|
|
switch($type) {
|
|
case 'in': // 验证是否在某个指定范围之内 逗号分隔字符串或者数组
|
|
case 'notin':
|
|
$range = is_array($rule)? $rule : explode(',',$rule);
|
|
return $type == 'in' ? in_array($value ,$range) : !in_array($value ,$range);
|
|
case 'between': // 验证是否在某个范围
|
|
case 'notbetween': // 验证是否不在某个范围
|
|
if (is_array($rule)){
|
|
$min = $rule[0];
|
|
$max = $rule[1];
|
|
}else{
|
|
list($min,$max) = explode(',',$rule);
|
|
}
|
|
return $type == 'between' ? $value>=$min && $value<=$max : $value<$min || $value>$max;
|
|
case 'equal': // 验证是否等于某个值
|
|
case 'notequal': // 验证是否等于某个值
|
|
return $type == 'equal' ? $value == $rule : $value != $rule;
|
|
case 'length': // 验证长度
|
|
$length = mb_strlen($value,'utf-8'); // 当前数据长度
|
|
if(strpos($rule,',')) { // 长度区间
|
|
list($min,$max) = explode(',',$rule);
|
|
return $length >= $min && $length <= $max;
|
|
}else{// 指定长度
|
|
return $length == $rule;
|
|
}
|
|
case 'expire':
|
|
list($start,$end) = explode(',',$rule);
|
|
if(!is_numeric($start)) $start = strtotime($start);
|
|
if(!is_numeric($end)) $end = strtotime($end);
|
|
return NOW_TIME >= $start && NOW_TIME <= $end;
|
|
case 'ip_allow': // IP 操作许可验证
|
|
return in_array(get_client_ip(),explode(',',$rule));
|
|
case 'ip_deny': // IP 操作禁止验证
|
|
return !in_array(get_client_ip(),explode(',',$rule));
|
|
case 'regex':
|
|
default: // 默认使用正则验证 可以使用验证类中定义的验证名称
|
|
// 检查附加规则
|
|
return $this->regex($value,$rule);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* SQL查询
|
|
* @access public
|
|
* @param string $sql SQL指令
|
|
* @return mixed
|
|
*/
|
|
public function query($sql) {
|
|
return $this->db->query($sql);
|
|
}
|
|
|
|
/**
|
|
* 执行SQL语句
|
|
* @access public
|
|
* @param string $sql SQL指令
|
|
* @return false | integer
|
|
*/
|
|
public function execute($sql) {
|
|
return $this->db->execute($sql);
|
|
}
|
|
|
|
/**
|
|
* 切换当前的数据库连接
|
|
* @access public
|
|
* @param integer $linkNum 连接序号
|
|
* @param mixed $config 数据库连接信息
|
|
* @param boolean $force 强制重新连接
|
|
* @return Model
|
|
*/
|
|
public function db($linkNum='',$config='',$force=false) {
|
|
if('' === $linkNum && $this->db) {
|
|
return $this->db;
|
|
}
|
|
|
|
if(!isset($this->_db[$linkNum]) || $force ) {
|
|
// 创建一个新的实例
|
|
if(!empty($config) && is_string($config) && false === strpos($config,'/')) { // 支持读取配置参数
|
|
$config = C($config);
|
|
}
|
|
$this->_db[$linkNum] = Db::getInstance($config);
|
|
}elseif(NULL === $config){
|
|
$this->_db[$linkNum]->close(); // 关闭数据库连接
|
|
unset($this->_db[$linkNum]);
|
|
return ;
|
|
}
|
|
|
|
// 切换数据库连接
|
|
$this->db = $this->_db[$linkNum];
|
|
$this->_after_db();
|
|
// 字段检测
|
|
if(!empty($this->name) && $this->autoCheckFields) $this->_checkTableInfo();
|
|
return $this;
|
|
}
|
|
// 数据库切换后回调方法
|
|
protected function _after_db() {}
|
|
|
|
/**
|
|
* 得到当前的数据对象名称
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getModelName() {
|
|
if(empty($this->name)){
|
|
$name = substr(get_class($this),0,-strlen(C('DEFAULT_M_LAYER')));
|
|
if ( $pos = strrpos($name,'\\') ) {//有命名空间
|
|
$this->name = substr($name,$pos+1);
|
|
}else{
|
|
$this->name = $name;
|
|
}
|
|
}
|
|
return $this->name;
|
|
}
|
|
|
|
/**
|
|
* 得到完整的数据表名
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getTableName() {
|
|
if(empty($this->trueTableName)) {
|
|
$tableName = !empty($this->tablePrefix) ? $this->tablePrefix : '';
|
|
if(!empty($this->tableName)) {
|
|
$tableName .= $this->tableName;
|
|
}else{
|
|
$tableName .= parse_name($this->name);
|
|
}
|
|
$this->trueTableName = strtolower($tableName);
|
|
}
|
|
return (!empty($this->dbName)?$this->dbName.'.':'').$this->trueTableName;
|
|
}
|
|
|
|
/**
|
|
* 启动事务
|
|
* @access public
|
|
* @return void
|
|
*/
|
|
public function startTrans() {
|
|
$this->commit();
|
|
$this->db->startTrans();
|
|
return ;
|
|
}
|
|
|
|
/**
|
|
* 提交事务
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function commit() {
|
|
return $this->db->commit();
|
|
}
|
|
|
|
/**
|
|
* 事务回滚
|
|
* @access public
|
|
* @return boolean
|
|
*/
|
|
public function rollback() {
|
|
return $this->db->rollback();
|
|
}
|
|
|
|
/**
|
|
* 返回模型的错误信息
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getError(){
|
|
return $this->error;
|
|
}
|
|
|
|
/**
|
|
* 返回数据库的错误信息
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getDbError() {
|
|
return $this->db->getError();
|
|
}
|
|
|
|
/**
|
|
* 返回最后插入的ID
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getLastInsID() {
|
|
return $this->db->getLastInsID();
|
|
}
|
|
|
|
/**
|
|
* 返回最后执行的sql语句
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getLastSql() {
|
|
return $this->db->getLastSql($this->name);
|
|
}
|
|
// 鉴于getLastSql比较常用 增加_sql 别名
|
|
public function _sql(){
|
|
return $this->getLastSql();
|
|
}
|
|
|
|
/**
|
|
* 获取主键名称
|
|
* @access public
|
|
* @return string
|
|
*/
|
|
public function getPk() {
|
|
return $this->pk;
|
|
}
|
|
|
|
/**
|
|
* 获取数据表字段信息
|
|
* @access public
|
|
* @return array
|
|
*/
|
|
public function getDbFields(){
|
|
if(isset($this->options['table'])) {// 动态指定表名
|
|
if(is_array($this->options['table'])){
|
|
$table = key($this->options['table']);
|
|
}else{
|
|
$table = $this->options['table'];
|
|
}
|
|
$fields = $this->db->getFields($table);
|
|
return $fields ? array_keys($fields) : false;
|
|
}
|
|
if($this->fields) {
|
|
$fields = $this->fields;
|
|
unset($fields['_type'],$fields['_pk']);
|
|
return $fields;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 设置数据对象值
|
|
* @access public
|
|
* @param mixed $data 数据
|
|
* @return Model
|
|
*/
|
|
public function data($data=''){
|
|
if('' === $data && !empty($this->data)) {
|
|
return $this->data;
|
|
}
|
|
if(is_object($data)){
|
|
$data = get_object_vars($data);
|
|
}elseif(is_string($data)){
|
|
parse_str($data,$data);
|
|
}elseif(!is_array($data)){
|
|
E(L('_DATA_TYPE_INVALID_'));
|
|
}
|
|
$this->data = $data;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 指定当前的数据表
|
|
* @access public
|
|
* @param mixed $table
|
|
* @return Model
|
|
*/
|
|
public function table($table) {
|
|
$prefix = $this->tablePrefix;
|
|
if(is_array($table)) {
|
|
$this->options['table'] = $table;
|
|
}elseif(!empty($table)) {
|
|
//将__TABLE_NAME__替换成带前缀的表名
|
|
$table = preg_replace_callback("/__([A-Z0-9_-]+)__/sU", function($match) use($prefix){ return $prefix.strtolower($match[1]);}, $table);
|
|
$this->options['table'] = $table;
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* USING支持 用于多表删除
|
|
* @access public
|
|
* @param mixed $using
|
|
* @return Model
|
|
*/
|
|
public function using($using){
|
|
$prefix = $this->tablePrefix;
|
|
if(is_array($using)) {
|
|
$this->options['using'] = $using;
|
|
}elseif(!empty($using)) {
|
|
//将__TABLE_NAME__替换成带前缀的表名
|
|
$using = preg_replace_callback("/__([A-Z0-9_-]+)__/sU", function($match) use($prefix){ return $prefix.strtolower($match[1]);}, $using);
|
|
$this->options['using'] = $using;
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 查询SQL组装 join
|
|
* @access public
|
|
* @param mixed $join
|
|
* @param string $type JOIN类型
|
|
* @return Model
|
|
*/
|
|
public function join($join,$type='INNER') {
|
|
$prefix = $this->tablePrefix;
|
|
if(is_array($join)) {
|
|
foreach ($join as $key=>&$_join){
|
|
$_join = preg_replace_callback("/__([A-Z0-9_-]+)__/sU", function($match) use($prefix){ return $prefix.strtolower($match[1]);}, $_join);
|
|
$_join = false !== stripos($_join,'JOIN')? $_join : $type.' JOIN ' .$_join;
|
|
}
|
|
$this->options['join'] = $join;
|
|
}elseif(!empty($join)) {
|
|
//将__TABLE_NAME__字符串替换成带前缀的表名
|
|
$join = preg_replace_callback("/__([A-Z0-9_-]+)__/sU", function($match) use($prefix){ return $prefix.strtolower($match[1]);}, $join);
|
|
$this->options['join'][] = false !== stripos($join,'JOIN')? $join : $type.' JOIN '.$join;
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 查询SQL组装 union
|
|
* @access public
|
|
* @param mixed $union
|
|
* @param boolean $all
|
|
* @return Model
|
|
*/
|
|
public function union($union,$all=false) {
|
|
if(empty($union)) return $this;
|
|
if($all) {
|
|
$this->options['union']['_all'] = true;
|
|
}
|
|
if(is_object($union)) {
|
|
$union = get_object_vars($union);
|
|
}
|
|
// 转换union表达式
|
|
if(is_string($union) ) {
|
|
$prefix = $this->tablePrefix;
|
|
//将__TABLE_NAME__字符串替换成带前缀的表名
|
|
$options = preg_replace_callback("/__([A-Z0-9_-]+)__/sU", function($match) use($prefix){ return $prefix.strtolower($match[1]);}, $union);
|
|
}elseif(is_array($union)){
|
|
if(isset($union[0])) {
|
|
$this->options['union'] = array_merge($this->options['union'],$union);
|
|
return $this;
|
|
}else{
|
|
$options = $union;
|
|
}
|
|
}else{
|
|
E(L('_DATA_TYPE_INVALID_'));
|
|
}
|
|
$this->options['union'][] = $options;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 查询缓存
|
|
* @access public
|
|
* @param mixed $key
|
|
* @param integer $expire
|
|
* @param string $type
|
|
* @return Model
|
|
*/
|
|
public function cache($key=true,$expire=null,$type=''){
|
|
// 增加快捷调用方式 cache(10) 等同于 cache(true, 10)
|
|
if(is_numeric($key) && is_null($expire)){
|
|
$expire = $key;
|
|
$key = true;
|
|
}
|
|
if(false !== $key)
|
|
$this->options['cache'] = array('key'=>$key,'expire'=>$expire,'type'=>$type);
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 指定查询字段 支持字段排除
|
|
* @access public
|
|
* @param mixed $field
|
|
* @param boolean $except 是否排除
|
|
* @return Model
|
|
*/
|
|
public function field($field,$except=false){
|
|
if(true === $field) {// 获取全部字段
|
|
$fields = $this->getDbFields();
|
|
$field = $fields?:'*';
|
|
}elseif($except) {// 字段排除
|
|
if(is_string($field)) {
|
|
$field = explode(',',$field);
|
|
}
|
|
$fields = $this->getDbFields();
|
|
$field = $fields?array_diff($fields,$field):$field;
|
|
}
|
|
$this->options['field'] = $field;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 调用命名范围
|
|
* @access public
|
|
* @param mixed $scope 命名范围名称 支持多个 和直接定义
|
|
* @param array $args 参数
|
|
* @return Model
|
|
*/
|
|
public function scope($scope='',$args=NULL){
|
|
if('' === $scope) {
|
|
if(isset($this->_scope['default'])) {
|
|
// 默认的命名范围
|
|
$options = $this->_scope['default'];
|
|
}else{
|
|
return $this;
|
|
}
|
|
}elseif(is_string($scope)){ // 支持多个命名范围调用 用逗号分割
|
|
$scopes = explode(',',$scope);
|
|
$options = array();
|
|
foreach ($scopes as $name){
|
|
if(!isset($this->_scope[$name])) continue;
|
|
$options = array_merge($options,$this->_scope[$name]);
|
|
}
|
|
if(!empty($args) && is_array($args)) {
|
|
$options = array_merge($options,$args);
|
|
}
|
|
}elseif(is_array($scope)){ // 直接传入命名范围定义
|
|
$options = $scope;
|
|
}
|
|
|
|
if(is_array($options) && !empty($options)){
|
|
$this->options = array_merge($this->options,array_change_key_case($options));
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 指定查询条件 支持安全过滤
|
|
* @access public
|
|
* @param mixed $where 条件表达式
|
|
* @param mixed $parse 预处理参数
|
|
* @return Model
|
|
*/
|
|
public function where($where,$parse=null){
|
|
if(!is_null($parse) && is_string($where)) {
|
|
if(!is_array($parse)) {
|
|
$parse = func_get_args();
|
|
array_shift($parse);
|
|
}
|
|
$parse = array_map(array($this->db,'escapeString'),$parse);
|
|
$where = vsprintf($where,$parse);
|
|
}elseif(is_object($where)){
|
|
$where = get_object_vars($where);
|
|
}
|
|
if(is_string($where) && '' != $where){
|
|
$map = array();
|
|
$map['_string'] = $where;
|
|
$where = $map;
|
|
}
|
|
if(isset($this->options['where'])){
|
|
$this->options['where'] = array_merge($this->options['where'],$where);
|
|
}else{
|
|
$this->options['where'] = $where;
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 指定查询数量
|
|
* @access public
|
|
* @param mixed $offset 起始位置
|
|
* @param mixed $length 查询数量
|
|
* @return Model
|
|
*/
|
|
public function limit($offset,$length=null){
|
|
if(is_null($length) && strpos($offset,',')){
|
|
list($offset,$length) = explode(',',$offset);
|
|
}
|
|
$this->options['limit'] = intval($offset).( $length? ','.intval($length) : '' );
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 指定分页
|
|
* @access public
|
|
* @param mixed $page 页数
|
|
* @param mixed $listRows 每页数量
|
|
* @return Model
|
|
*/
|
|
public function page($page,$listRows=null){
|
|
if(is_null($listRows) && strpos($page,',')){
|
|
list($page,$listRows) = explode(',',$page);
|
|
}
|
|
$this->options['page'] = array(intval($page),intval($listRows));
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 查询注释
|
|
* @access public
|
|
* @param string $comment 注释
|
|
* @return Model
|
|
*/
|
|
public function comment($comment){
|
|
$this->options['comment'] = $comment;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 获取执行的SQL语句
|
|
* @access public
|
|
* @param boolean $fetch 是否返回sql
|
|
* @return Model
|
|
*/
|
|
public function fetchSql($fetch){
|
|
$this->options['fetch_sql'] = $fetch;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 参数绑定
|
|
* @access public
|
|
* @param string $key 参数名
|
|
* @param mixed $value 绑定的变量及绑定参数
|
|
* @return Model
|
|
*/
|
|
public function bind($key,$value=false) {
|
|
if(is_array($key)){
|
|
$this->options['bind'] = $key;
|
|
}else{
|
|
$num = func_num_args();
|
|
if($num>2){
|
|
$params = func_get_args();
|
|
array_shift($params);
|
|
$this->options['bind'][$key] = $params;
|
|
}else{
|
|
$this->options['bind'][$key] = $value;
|
|
}
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* 设置模型的属性值
|
|
* @access public
|
|
* @param string $name 名称
|
|
* @param mixed $value 值
|
|
* @return Model
|
|
*/
|
|
public function setProperty($name,$value) {
|
|
if(property_exists($this,$name))
|
|
$this->$name = $value;
|
|
return $this;
|
|
}
|
|
|
|
}
|