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- <?php
- // +----------------------------------------------------------------------
- // | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
- // +----------------------------------------------------------------------
- // | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
- // +----------------------------------------------------------------------
- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
- // +----------------------------------------------------------------------
- // | Author: liu21st <liu21st@gmail.com>
- // +----------------------------------------------------------------------
- namespace Think;
- /**
- * ThinkPHP Model模型类
- * 实现了ORM和ActiveRecords模式
- */
- class Model {
- // 操作状态
- const MODEL_INSERT = 1; // 插入模型数据
- const MODEL_UPDATE = 2; // 更新模型数据
- const MODEL_BOTH = 3; // 包含上面两种方式
- const MUST_VALIDATE = 1; // 必须验证
- const EXISTS_VALIDATE = 0; // 表单存在字段则验证
- const VALUE_VALIDATE = 2; // 表单值不为空则验证
- // 当前数据库操作对象
- protected $db = null;
- // 数据库对象池
- private $_db = array();
- // 主键名称
- protected $pk = 'id';
- // 主键是否自动增长
- protected $autoinc = false;
- // 数据表前缀
- protected $tablePrefix = null;
- // 模型名称
- protected $name = '';
- // 数据库名称
- protected $dbName = '';
- //数据库配置
- protected $connection = '';
- // 数据表名(不包含表前缀)
- protected $tableName = '';
- // 实际数据表名(包含表前缀)
- protected $trueTableName = '';
- // 最近错误信息
- protected $error = '';
- // 字段信息
- protected $fields = array();
- // 数据信息
- protected $data = array();
- // 查询表达式参数
- protected $options = array();
- protected $_validate = array(); // 自动验证定义
- protected $_auto = array(); // 自动完成定义
- protected $_map = array(); // 字段映射定义
- protected $_scope = array(); // 命名范围定义
- // 是否自动检测数据表字段信息
- protected $autoCheckFields = true;
- // 是否批处理验证
- protected $patchValidate = false;
- // 链操作方法列表
- protected $methods = array('strict','order','alias','having','group','lock','distinct','auto','filter','validate','result','token','index','force');
- /**
- * 架构函数
- * 取得DB类的实例对象 字段检查
- * @access public
- * @param string $name 模型名称
- * @param string $tablePrefix 表前缀
- * @param mixed $connection 数据库连接信息
- */
- public function __construct($name='',$tablePrefix='',$connection='') {
- // 模型初始化
- $this->_initialize();
- // 获取模型名称
- if(!empty($name)) {
- if(strpos($name,'.')) { // 支持 数据库名.模型名的 定义
- list($this->dbName,$this->name) = explode('.',$name);
- }else{
- $this->name = $name;
- }
- }elseif(empty($this->name)){
- $this->name = $this->getModelName();
- }
- // 设置表前缀
- if(is_null($tablePrefix)) {// 前缀为Null表示没有前缀
- $this->tablePrefix = '';
- }elseif('' != $tablePrefix) {
- $this->tablePrefix = $tablePrefix;
- }elseif(!isset($this->tablePrefix)){
- $this->tablePrefix = C('DB_PREFIX');
- }
- // 数据库初始化操作
- // 获取数据库操作对象
- // 当前模型有独立的数据库连接信息
- $this->db(0,empty($this->connection)?$connection:$this->connection,true);
- }
- /**
- * 自动检测数据表信息
- * @access protected
- * @return void
- */
- protected function _checkTableInfo() {
- // 如果不是Model类 自动记录数据表信息
- // 只在第一次执行记录
- if(empty($this->fields)) {
- // 如果数据表字段没有定义则自动获取
- if(C('DB_FIELDS_CACHE')) {
- $db = $this->dbName?:C('DB_NAME');
- $fields = F('_fields/'.strtolower($db.'.'.$this->tablePrefix.$this->name));
- if($fields) {
- $this->fields = $fields;
- if(!empty($fields['_pk'])){
- $this->pk = $fields['_pk'];
- }
- return ;
- }
- }
- // 每次都会读取数据表信息
- $this->flush();
- }
- }
- /**
- * 获取字段信息并缓存
- * @access public
- * @return void
- */
- public function flush() {
- // 缓存不存在则查询数据表信息
- $this->db->setModel($this->name);
- $fields = $this->db->getFields($this->getTableName());
- if(!$fields) { // 无法获取字段信息
- return false;
- }
- $this->fields = array_keys($fields);
- unset($this->fields['_pk']);
- foreach ($fields as $key=>$val){
- // 记录字段类型
- $type[$key] = $val['type'];
- if($val['primary']) {
- // 增加复合主键支持
- if (isset($this->fields['_pk']) && $this->fields['_pk'] != null) {
- if (is_string($this->fields['_pk'])) {
- $this->pk = array($this->fields['_pk']);
- $this->fields['_pk'] = $this->pk;
- }
- $this->pk[] = $key;
- $this->fields['_pk'][] = $key;
- } else {
- $this->pk = $key;
- $this->fields['_pk'] = $key;
- }
- if($val['autoinc']) $this->autoinc = true;
- }
- }
- // 记录字段类型信息
- $this->fields['_type'] = $type;
- // 2008-3-7 增加缓存开关控制
- if(C('DB_FIELDS_CACHE')){
- // 永久缓存数据表信息
- $db = $this->dbName?:C('DB_NAME');
- F('_fields/'.strtolower($db.'.'.$this->tablePrefix.$this->name),$this->fields);
- }
- }
- /**
- * 设置数据对象的值
- * @access public
- * @param string $name 名称
- * @param mixed $value 值
- * @return void
- */
- public function __set($name,$value) {
- // 设置数据对象属性
- $this->data[$name] = $value;
- }
- /**
- * 获取数据对象的值
- * @access public
- * @param string $name 名称
- * @return mixed
- */
- public function __get($name) {
- return isset($this->data[$name])?$this->data[$name]:null;
- }
- /**
- * 检测数据对象的值
- * @access public
- * @param string $name 名称
- * @return boolean
- */
- public function __isset($name) {
- return isset($this->data[$name]);
- }
- /**
- * 销毁数据对象的值
- * @access public
- * @param string $name 名称
- * @return void
- */
- public function __unset($name) {
- unset($this->data[$name]);
- }
- /**
- * 利用__call方法实现一些特殊的Model方法
- * @access public
- * @param string $method 方法名称
- * @param array $args 调用参数
- * @return mixed
- */
- public function __call($method,$args) {
- if(in_array(strtolower($method),$this->methods,true)) {
- // 连贯操作的实现
- $this->options[strtolower($method)] = $args[0];
- return $this;
- }elseif(in_array(strtolower($method),array('count','sum','min','max','avg'),true)){
- // 统计查询的实现
- $field = isset($args[0])?$args[0]:'*';
- return $this->getField(strtoupper($method).'('.$field.') AS tp_'.$method);
- }elseif(strtolower(substr($method,0,5))=='getby') {
- // 根据某个字段获取记录
- $field = parse_name(substr($method,5));
- $where[$field] = $args[0];
- return $this->where($where)->find();
- }elseif(strtolower(substr($method,0,10))=='getfieldby') {
- // 根据某个字段获取记录的某个值
- $name = parse_name(substr($method,10));
- $where[$name] =$args[0];
- return $this->where($where)->getField($args[1]);
- }elseif(isset($this->_scope[$method])){// 命名范围的单独调用支持
- return $this->scope($method,$args[0]);
- }else{
- E(__CLASS__.':'.$method.L('_METHOD_NOT_EXIST_'));
- return;
- }
- }
- // 回调方法 初始化模型
- protected function _initialize() {}
- /**
- * 对保存到数据库的数据进行处理
- * @access protected
- * @param mixed $data 要操作的数据
- * @return boolean
- */
- protected function _facade($data) {
- // 检查数据字段合法性
- if(!empty($this->fields)) {
- if(!empty($this->options['field'])) {
- $fields = $this->options['field'];
- unset($this->options['field']);
- if(is_string($fields)) {
- $fields = explode(',',$fields);
- }
- }else{
- $fields = $this->fields;
- }
- foreach ($data as $key=>$val){
- if(!in_array($key,$fields,true)){
- if(!empty($this->options['strict'])){
- E(L('_DATA_TYPE_INVALID_').':['.$key.'=>'.$val.']');
- }
- unset($data[$key]);
- }elseif(is_scalar($val)) {
- // 字段类型检查 和 强制转换
- $this->_parseType($data,$key);
- }
- }
- }
-
- // 安全过滤
- if(!empty($this->options['filter'])) {
- $data = array_map($this->options['filter'],$data);
- unset($this->options['filter']);
- }
- $this->_before_write($data);
- return $data;
- }
- // 写入数据前的回调方法 包括新增和更新
- protected function _before_write(&$data) {}
- /**
- * 新增数据
- * @access public
- * @param mixed $data 数据
- * @param array $options 表达式
- * @param boolean $replace 是否replace
- * @return mixed
- */
- public function add($data='',$options=array(),$replace=false) {
- if(empty($data)) {
- // 没有传递数据,获取当前数据对象的值
- if(!empty($this->data)) {
- $data = $this->data;
- // 重置数据
- $this->data = array();
- }else{
- $this->error = L('_DATA_TYPE_INVALID_');
- return false;
- }
- }
- // 数据处理
- $data = $this->_facade($data);
- // 分析表达式
- $options = $this->_parseOptions($options);
- if(false === $this->_before_insert($data,$options)) {
- return false;
- }
- // 写入数据到数据库
- $result = $this->db->insert($data,$options,$replace);
- if(false !== $result && is_numeric($result)) {
- $pk = $this->getPk();
- // 增加复合主键支持
- if (is_array($pk)) return $result;
- $insertId = $this->getLastInsID();
- if($insertId) {
- // 自增主键返回插入ID
- $data[$pk] = $insertId;
- if(false === $this->_after_insert($data,$options)) {
- return false;
- }
- return $insertId;
- }
- if(false === $this->_after_insert($data,$options)) {
- return false;
- }
- }
- return $result;
- }
- // 插入数据前的回调方法
- protected function _before_insert(&$data,$options) {}
- // 插入成功后的回调方法
- protected function _after_insert($data,$options) {}
- public function addAll($dataList,$options=array(),$replace=false){
- if(empty($dataList)) {
- $this->error = L('_DATA_TYPE_INVALID_');
- return false;
- }
- // 数据处理
- foreach ($dataList as $key=>$data){
- $dataList[$key] = $this->_facade($data);
- }
- // 分析表达式
- $options = $this->_parseOptions($options);
- // 写入数据到数据库
- $result = $this->db->insertAll($dataList,$options,$replace);
- if(false !== $result ) {
- $insertId = $this->getLastInsID();
- if($insertId) {
- return $insertId;
- }
- }
- return $result;
- }
- /**
- * 通过Select方式添加记录
- * @access public
- * @param string $fields 要插入的数据表字段名
- * @param string $table 要插入的数据表名
- * @param array $options 表达式
- * @return boolean
- */
- public function selectAdd($fields='',$table='',$options=array()) {
- // 分析表达式
- $options = $this->_parseOptions($options);
- // 写入数据到数据库
- if(false === $result = $this->db->selectInsert($fields?:$options['field'],$table?:$this->getTableName(),$options)){
- // 数据库插入操作失败
- $this->error = L('_OPERATION_WRONG_');
- return false;
- }else {
- // 插入成功
- return $result;
- }
- }
- /**
- * 保存数据
- * @access public
- * @param mixed $data 数据
- * @param array $options 表达式
- * @return boolean
- */
- public function save($data='',$options=array()) {
- if(empty($data)) {
- // 没有传递数据,获取当前数据对象的值
- if(!empty($this->data)) {
- $data = $this->data;
- // 重置数据
- $this->data = array();
- }else{
- $this->error = L('_DATA_TYPE_INVALID_');
- return false;
- }
- }
- // 数据处理
- $data = $this->_facade($data);
- if(empty($data)){
- // 没有数据则不执行
- $this->error = L('_DATA_TYPE_INVALID_');
- return false;
- }
- // 分析表达式
- $options = $this->_parseOptions($options);
- $pk = $this->getPk();
- if(!isset($options['where']) ) {
- // 如果存在主键数据 则自动作为更新条件
- if (is_string($pk) && isset($data[$pk])) {
- $where[$pk] = $data[$pk];
- unset($data[$pk]);
- } elseif (is_array($pk)) {
- // 增加复合主键支持
- foreach ($pk as $field) {
- if(isset($data[$field])) {
- $where[$field] = $data[$field];
- } else {
- // 如果缺少复合主键数据则不执行
- $this->error = L('_OPERATION_WRONG_');
- return false;
- }
- unset($data[$field]);
- }
- }
- if(!isset($where)){
- // 如果没有任何更新条件则不执行
- $this->error = L('_OPERATION_WRONG_');
- return false;
- }else{
- $options['where'] = $where;
- }
- }
- if(is_array($options['where']) && isset($options['where'][$pk])){
- $pkValue = $options['where'][$pk];
- }
- if(false === $this->_before_update($data,$options)) {
- return false;
- }
- $result = $this->db->update($data,$options);
- if(false !== $result && is_numeric($result)) {
- if(isset($pkValue)) $data[$pk] = $pkValue;
- $this->_after_update($data,$options);
- }
- return $result;
- }
- // 更新数据前的回调方法
- protected function _before_update(&$data,$options) {}
- // 更新成功后的回调方法
- protected function _after_update($data,$options) {}
- /**
- * 删除数据
- * @access public
- * @param mixed $options 表达式
- * @return mixed
- */
- public function delete($options=array()) {
- $pk = $this->getPk();
- if(empty($options) && empty($this->options['where'])) {
- // 如果删除条件为空 则删除当前数据对象所对应的记录
- if(!empty($this->data) && isset($this->data[$pk]))
- return $this->delete($this->data[$pk]);
- else
- return false;
- }
- if(is_numeric($options) || is_string($options)) {
- // 根据主键删除记录
- if(strpos($options,',')) {
- $where[$pk] = array('IN', $options);
- }else{
- $where[$pk] = $options;
- }
- $options = array();
- $options['where'] = $where;
- }
- // 根据复合主键删除记录
- if (is_array($options) && (count($options) > 0) && is_array($pk)) {
- $count = 0;
- foreach (array_keys($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;
- }
- }
- // 分析表达式
- $options = $this->_parseOptions($options);
- if(empty($options['where'])){
- // 如果条件为空 不进行删除操作 除非设置 1=1
- return false;
- }
- if(is_array($options['where']) && isset($options['where'][$pk])){
- $pkValue = $options['where'][$pk];
- }
- if(false === $this->_before_delete($options)) {
- return false;
- }
- $result = $this->db->delete($options);
- if(false !== $result && is_numeric($result)) {
- $data = array();
- if(isset($pkValue)) $data[$pk] = $pkValue;
- $this->_after_delete($data,$options);
- }
- // 返回删除记录个数
- return $result;
- }
- // 删除数据前的回调方法
- protected function _before_delete($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,$options) {}
- /**
- * 生成查询SQL 可用于子查询
- * @access public
- * @return string
- */
- public function buildSql() {
- return '( '.$this->fetchSql(true)->select().' )';
- }
- /**
- * 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,$options);
- if(!empty($this->options['result'])) {
- return $this->returnResult($data,$this->options['result']);
- }
- $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,$options) {}
- protected function returnResult($data,$type=''){
- if ($type){
- if(is_callable($type)){
- return call_user_func($type,$data);
- }
- switch (strtolower($type)){
- case 'json':
- return json_encode($data);
- case 'xml':
- return xml_encode($data);
- }
- }
- return $data;
- }
- /**
- * 处理字段映射
- * @access public
- * @param array $data 当前数据
- * @param integer $type 类型 0 写入 1 读取
- * @return array
- */
- public function parseFieldsMap($data,$type=1) {
- // 检查字段映射
- if(!empty($this->_map)) {
- foreach ($this->_map as $key=>$val){
- if($type==1) { // 读取
- if(isset($data[$val])) {
- $data[$key] = $data[$val];
- unset($data[$val]);
- }
- }else{
- if(isset($data[$key])) {
- $data[$val] = $data[$key];
- unset($data[$key]);
- }
- }
- }
- }
- return $data;
- }
- /**
- * 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,$step=1,$lazyTime=0) {
- if($lazyTime>0) {// 延迟写入
- $condition = $this->options['where'];
- $guid = md5($this->name.'_'.$field.'_'.serialize($condition));
- $step = $this->lazyWrite($guid,$step,$lazyTime);
- if(false === $step ) return true; // 等待下次写入
- }
- 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,$step=1,$lazyTime=0) {
- if($lazyTime>0) {// 延迟写入
- $condition = $this->options['where'];
- $guid = md5($this->name.'_'.$field.'_'.serialize($condition));
- $step = $this->lazyWrite($guid,$step,$lazyTime);
- if(false === $step ) return true; // 等待下次写入
- }
- return $this->setField($field,array('exp',$field.'-'.$step));
- }
- /**
- * 延时更新检查 返回false表示需要延时
- * 否则返回实际写入的数值
- * @access public
- * @param string $guid 写入标识
- * @param integer $step 写入步进值
- * @param integer $lazyTime 延时时间(s)
- * @return false|integer
- */
- protected function lazyWrite($guid,$step,$lazyTime) {
- if(false !== ($value = S($guid))) { // 存在缓存写入数据
- if(NOW_TIME > S($guid.'_time')+$lazyTime) {
- // 延时更新时间到了,删除缓存数据 并实际写入数据库
- S($guid,NULL);
- S($guid.'_time',NULL);
- return $value+$step;
- }else{
- // 追加数据到缓存
- S($guid,$value+$step);
- return false;
- }
- }else{ // 没有缓存数据
- S($guid,$step);
- // 计时开始
- S($guid.'_time',NOW_TIME);
- return false;
- }
- }
- /**
- * 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
- * @param string $type 状态
- * @return mixed
- */
- public function create($data='',$type='') {
- // 如果没有传值默认取POST数据
- if(empty($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;
- }
- // 状态
- $type = $type?:(!empty($data[$this->getPk()])?self::MODEL_UPDATE:self::MODEL_INSERT);
- // 检查字段映射
- if(!empty($this->_map)) {
- foreach ($this->_map as $key=>$val){
- if(isset($data[$key])) {
- $data[$val] = $data[$key];
- unset($data[$key]);
- }
- }
- }
- // 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']);
- }elseif($type == self::MODEL_INSERT && isset($this->insertFields)) {
- $fields = $this->insertFields;
- }elseif($type == self::MODEL_UPDATE && isset($this->updateFields)) {
- $fields = $this->updateFields;
- }
- if(isset($fields)) {
- if(is_string($fields)) {
- $fields = explode(',',$fields);
- }
- // 判断令牌验证字段
- if(C('TOKEN_ON')) $fields[] = C('TOKEN_NAME', null, '__hash__');
- foreach ($data as $key=>$val){
- if(!in_array($key,$fields)) {
- unset($data[$key]);
- }
- }
- }
- // 数据自动验证
- if(!$this->autoValidation($data,$type)) return false;
- // 表单令牌验证
- if(!$this->autoCheckToken($data)) {
- $this->error = L('_TOKEN_ERROR_');
- return false;
- }
- // 验证完成生成数据对象
- if($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);
- }
- }
- }
- // 创建完成对数据进行自动处理
- $this->autoOperation($data,$type);
- // 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 $data;
- }
- // 自动表单令牌验证
- // TODO ajax无刷新多次提交暂不能满足
- public function autoCheckToken($data) {
- // 支持使用token(false) 关闭令牌验证
- if(isset($this->options['token']) && !$this->options['token']) return true;
- if(C('TOKEN_ON')){
- $name = C('TOKEN_NAME', null, '__hash__');
- if(!isset($data[$name]) || !isset($_SESSION[$name])) { // 令牌数据无效
- return false;
- }
- // 令牌验证
- list($key,$value) = explode('_',$data[$name]);
- if($value && $_SESSION[$name][$key] === $value) { // 防止重复提交
- unset($_SESSION[$name][$key]); // 验证完成销毁session
- return true;
- }
- // 开启TOKEN重置
- if(C('TOKEN_RESET')) unset($_SESSION[$name][$key]);
- return false;
- }
- return true;
- }
- /**
- * 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;
- }
- /**
- * 自动表单处理
- * @access public
- * @param array $data 创建数据
- * @param string $type 创建类型
- * @return mixed
- */
- private function autoOperation(&$data,$type) {
- if(!empty($this->options['auto'])) {
- $_auto = $this->options['auto'];
- unset($this->options['auto']);
- }elseif(!empty($this->_auto)){
- $_auto = $this->_auto;
- }
- // 自动填充
- if(isset($_auto)) {
- foreach ($_auto as $auto){
- // 填充因子定义格式
- // array('field','填充内容','填充条件','附加规则',[额外参数])
- if(empty($auto[2])) $auto[2] = self::MODEL_INSERT; // 默认为新增的时候自动填充
- if( $type == $auto[2] || $auto[2] == self::MODEL_BOTH) {
- if(empty($auto[3])) $auto[3] = 'string';
- switch(trim($auto[3])) {
- case 'function': // 使用函数进行填充 字段的值作为参数
- case 'callback': // 使用回调方法
- $args = isset($auto[4])?(array)$auto[4]:array();
- if(isset($data[$auto[0]])) {
- array_unshift($args,$data[$auto[0]]);
- }
- if('function'==$auto[3]) {
- $data[$auto[0]] = call_user_func_array($auto[1], $args);
- }else{
- $data[$auto[0]] = call_user_func_array(array(&$this,$auto[1]), $args);
- }
- break;
- case 'field': // 用其它字段的值进行填充
- $data[$auto[0]] = $data[$auto[1]];
- break;
- case 'ignore': // 为空忽略
- if($auto[1]===$data[$auto[0]])
- unset($data[$auto[0]]);
- break;
- case 'string':
- default: // 默认作为字符串填充
- $data[$auto[0]] = $auto[1];
- }
- if(isset($data[$auto[0]]) && false === $data[$auto[0]] ) unset($data[$auto[0]]);
- }
- }
- }
- return $data;
- }
- /**
- * 自动表单验证
- * @access protected
- * @param array $data 创建数据
- * @param string $type 创建类型
- * @return boolean
- */
- protected function autoValidation($data,$type) {
- if(!empty($this->options['validate'])) {
- $_validate = $this->options['validate'];
- unset($this->options['validate']);
- }elseif(!empty($this->_validate)){
- $_validate = $this->_validate;
- }
- // 属性验证
- if(isset($_validate)) { // 如果设置了数据自动验证则进行数据验证
- if($this->patchValidate) { // 重置验证错误信息
- $this->error = array();
- }
- foreach($_validate as $key=>$val) {
- // 验证因子定义格式
- // array(field,rule,message,condition,type,when,params)
- // 判断是否需要执行验证
- if(empty($val[5]) || ( $val[5]== self::MODEL_BOTH && $type < 3 ) || $val[5]== $type ) {
- if(0==strpos($val[2],'{%') && strpos($val[2],'}'))
- // 支持提示信息的多语言 使用 {%语言定义} 方式
- $val[2] = L(substr($val[2],2,-1));
- $val[3] = isset($val[3])?$val[3]:self::EXISTS_VALIDATE;
- $val[4] = isset($val[4])?$val[4]:'regex';
- // 判断验证条件
- switch($val[3]) {
- case self::MUST_VALIDATE: // 必须验证 不管表单是否有设置该字段
- if(false === $this->_validationField($data,$val))
- return false;
- break;
- case self::VALUE_VALIDATE: // 值不为空的时候才验证
- if('' != trim($data[$val[0]]))
- if(false === $this->_validationField($data,$val))
- return false;
- break;
- default: // 默认表单存在该字段就验证
- if(isset($data[$val[0]]))
- if(false === $this->_validationField($data,$val))
- return false;
- }
- }
- }
- // 批量验证的时候最后返回错误
- if(!empty($this->error)) return false;
- }
- return true;
- }
- /**
- * 验证表单字段 支持批量验证
- * 如果批量验证返回错误的数组信息
- * @access protected
- * @param array $data 创建数据
- * @param array $val 验证因子
- * @return boolean
- */
- protected function _validationField($data,$val) {
- if($this->patchValidate && isset($this->error[$val[0]]))
- return ; //当前字段已经有规则验证没有通过
- if(false === $this->_validationFieldItem($data,$val)){
- if($this->patchValidate) {
- $this->error[$val[0]] = $val[2];
- }else{
- $this->error = $val[2];
- return false;
- }
- }
- return ;
- }
- /**
- * 根据验证因子验证字段
- * @access protected
- * @param array $data 创建数据
- * @param array $val 验证因子
- * @return boolean
- */
- protected function _validationFieldItem($data,$val) {
- switch(strtolower(trim($val[4]))) {
- case 'function':// 使用函数进行验证
- case 'callback':// 调用方法进行验证
- $args = isset($val[6])?(array)$val[6]:array();
- if(is_string($val[0]) && strpos($val[0], ','))
- $val[0] = explode(',', $val[0]);
- if(is_array($val[0])){
- // 支持多个字段验证
- foreach($val[0] as $field)
- $_data[$field] = $data[$field];
- array_unshift($args, $_data);
- }else{
- array_unshift($args, $data[$val[0]]);
- }
- if('function'==$val[4]) {
- return call_user_func_array($val[1], $args);
- }else{
- return call_user_func_array(array(&$this, $val[1]), $args);
- }
- case 'confirm': // 验证两个字段是否相同
- return $data[$val[0]] == $data[$val[1]];
- case 'unique': // 验证某个值是否唯一
- if(is_string($val[0]) && strpos($val[0],','))
- $val[0] = explode(',',$val[0]);
- $map = array();
- if(is_array($val[0])) {
- // 支持多个字段验证
- foreach ($val[0] as $field)
- $map[$field] = $data[$field];
- }else{
- $map[$val[0]] = $data[$val[0]];
- }
- $pk = $this->getPk();
- if(!empty($data[$pk]) && is_string($pk)) { // 完善编辑的时候验证唯一
- $map[$pk] = array('neq',$data[$pk]);
- }
- if($this->where($map)->find()) return false;
- return true;
- default: // 检查附加规则
- return $this->check($data[$val[0]],$val[1],$val[4]);
- }
- }
- /**
- * 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
- * @param mixed $parse 是否需要解析SQL
- * @return mixed
- */
- public function query($sql,$parse=false) {
- if(!is_bool($parse) && !is_array($parse)) {
- $parse = func_get_args();
- array_shift($parse);
- }
- $sql = $this->parseSql($sql,$parse);
- return $this->db->query($sql);
- }
- /**
- * 执行SQL语句
- * @access public
- * @param string $sql SQL指令
- * @param mixed $parse 是否需要解析SQL
- * @return false | integer
- */
- public function execute($sql,$parse=false) {
- if(!is_bool($parse) && !is_array($parse)) {
- $parse = func_get_args();
- array_shift($parse);
- }
- $sql = $this->parseSql($sql,$parse);
- return $this->db->execute($sql);
- }
- /**
- * 解析SQL语句
- * @access public
- * @param string $sql SQL指令
- * @param boolean $parse 是否需要解析SQL
- * @return string
- */
- protected function parseSql($sql,$parse) {
- // 分析表达式
- if(true === $parse) {
- $options = $this->_parseOptions();
- $sql = $this->db->parseSql($sql,$options);
- }elseif(is_array($parse)){ // SQL预处理
- $parse = array_map(array($this->db,'escapeString'),$parse);
- $sql = vsprintf($sql,$parse);
- }else{
- $sql = strtr($sql,array('__TABLE__'=>$this->getTableName(),'__PREFIX__'=>$this->tablePrefix));
- $prefix = $this->tablePrefix;
- $sql = preg_replace_callback("/__([A-Z0-9_-]+)__/sU", function($match) use($prefix){ return $prefix.strtolower($match[1]);}, $sql);
- }
- $this->db->setModel($this->name);
- return $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 = $this->options['table'];
- if(strpos($table,')')){
- // 子查询
- return false;
- }
- }
- $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;
- }
- }
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