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改进数据库驱动

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thinkphp
2015-01-29 14:31:45 +08:00
parent 55adc28ac0
commit 6ecc2963f1
2 changed files with 397 additions and 166 deletions
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188
library/think/model.php
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@@ -218,6 +218,28 @@ class Model {
// 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] = $this->_write_data($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;
}
/**
* 保存数据
* @access public
@@ -327,22 +349,50 @@ class Model {
$options = [];
$options['where'] = $where;
}elseif(false === $options){ // 用于子查询 不查询只返回SQL
$options = [];
// 分析表达式
$options = $this->_parseOptions($options);
return '( '.$this->db->buildSelectSql($options).' )';
return $this->buildSql();
}
// 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(!empty($resultSet)) { // 有查询结果
if(is_string($resultSet)){
return $resultSet;
}
// 数据列表读取后的处理
$resultSet = $this->_read_datalist($resultSet);
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;
}
}
// 数据列表读取后的处理
$resultSet = $this->_read_datalist($resultSet);
if(isset($cache)){
S($key,$resultSet,$cache);
}
return $resultSet;
}
@@ -367,9 +417,7 @@ class Model {
* @return string
*/
public function buildSql($options=[]) {
// 分析表达式
$options = $this->_parseOptions($options);
return '( '.$this->db->buildSelectSql($options).' )';
return '( '.$this->fetchSql(true)->select().' )';
}
/**
@@ -381,8 +429,7 @@ class Model {
protected function _parseOptions($options=[]) {
if(is_array($options))
$options = array_merge($this->options,$options);
// 查询过后清空sql表达式组装 避免影响下次查询
$this->options = [];
if(!empty($options['alias'])) {
$options['table'] .= ' '.$options['alias'];
@@ -411,6 +458,8 @@ class Model {
}
}
}
// 查询过后清空sql表达式组装 避免影响下次查询
$this->options = [];
// 表达式过滤
$this->_options_filter($options);
return $options;
@@ -426,9 +475,11 @@ class Model {
* @return void
*/
protected function _parseType(&$data,$key) {
if(isset($this->fields['_type'][$key])) {
if(!isset($this->options['bind'][':'.$key]) && isset($this->fields['_type'][$key])) {
$fieldType = strtolower($this->fields['_type'][$key]);
if(false === strpos($fieldType,'bigint') && false !== strpos($fieldType,'int')) {
if(false !== strpos($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]);
@@ -454,6 +505,16 @@ class Model {
$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 === $resultSet) {
return false;
@@ -461,10 +522,16 @@ class Model {
if(empty($resultSet)) {// 查询结果为空
return null;
}
if(is_string($resultSet)){
return $resultSet;
}
// 数据处理
$data = $this->_read_data($resultSet[0]);
// 数据对象赋值
$this->data = $data;
if(isset($cache)){
S($key,$data,$cache);
}
return $this->data;
}
@@ -734,13 +801,21 @@ class Model {
* 查询SQL组装 join
* @access public
* @param mixed $join
* @param string $type JOIN类型
* @return Model
*/
public function join($join) {
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)) {
$this->options['join'][] = $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 $this;
}
@@ -762,7 +837,9 @@ class Model {
}
// 转换union表达式
if(is_string($union) ) {
$options = $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'],$union);
@@ -786,6 +863,11 @@ class Model {
* @return Model
*/
public function cache($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)
$this->options['cache'] = ['key'=>$key,'expire'=>$expire,'type'=>$type];
return $this;
@@ -801,7 +883,7 @@ class Model {
public function field($field,$except=false){
if(true === $field) {// 获取全部字段
$fields = $this->getDbFields();
$field = $fields?$fields:'*';
$field = $fields?:'*';
}elseif($except) {// 字段排除
if(is_string($field)) {
$field = explode(',',$field);
@@ -887,7 +969,10 @@ class Model {
* @return Model
*/
public function limit($offset,$length=null){
$this->options['limit'] = is_null($length)?$offset:$offset.','.$length;
if(is_null($length) && strpos($offset,',')){
list($offset,$length) = explode(',',$offset);
}
$this->options['limit'] = intval($offset).( $length? ','.intval($length) : '' );
return $this;
}
@@ -899,7 +984,10 @@ class Model {
* @return Model
*/
public function page($page,$listRows=null){
$this->options['page'] = is_null($listRows)?$page:$page.','.$listRows;
if(is_null($listRows) && strpos($page,',')){
list($page,$listRows) = explode(',',$page);
}
$this->options['page'] = array(intval($page),intval($listRows));
return $this;
}
@@ -910,7 +998,32 @@ class Model {
* @return Model
*/
public function table($table){
$this->options['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;
}
@@ -992,13 +1105,25 @@ class Model {
}
/**
* 指定参数绑定
* 参数绑定
* @access public
* @param array $bind 指定参数绑定
* @param string $key 参数名
* @param mixed $value 绑定的变量及绑定参数
* @return Model
*/
public function bind($bind){
$this->options['bind'] = $bind;
public function bind($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;
}
@@ -1013,6 +1138,17 @@ class Model {
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;
}
/**
* 设置字段映射
* @access public