1167 lines
36 KiB
PHP
1167 lines
36 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2018 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\db;
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use PDO;
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use think\Exception;
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abstract class Builder
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{
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// connection对象实例
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protected $connection;
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// 查询表达式映射
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protected $exp = ['EQ' => '=', 'NEQ' => '<>', 'GT' => '>', 'EGT' => '>=', 'LT' => '<', 'ELT' => '<=', 'NOTLIKE' => 'NOT LIKE', 'NOTIN' => 'NOT IN', 'NOTBETWEEN' => 'NOT BETWEEN', 'NOTEXISTS' => 'NOT EXISTS', 'NOTNULL' => 'NOT NULL', 'NOTBETWEEN TIME' => 'NOT BETWEEN TIME'];
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// 查询表达式解析
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protected $parser = [
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'parseCompare' => ['=', '<>', '>', '>=', '<', '<='],
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'parseLike' => ['LIKE', 'NOT LIKE'],
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'parseBetween' => ['NOT BETWEEN', 'BETWEEN'],
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'parseIn' => ['NOT IN', 'IN'],
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'parseExp' => ['EXP'],
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'parseNull' => ['NOT NULL', 'NULL'],
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'parseBetweenTime' => ['BETWEEN TIME', 'NOT BETWEEN TIME'],
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'parseTime' => ['< TIME', '> TIME', '<= TIME', '>= TIME'],
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'parseExists' => ['NOT EXISTS', 'EXISTS'],
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'parseColumn' => ['COLUMN'],
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];
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// SQL表达式
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protected $selectSql = 'SELECT%DISTINCT% %FIELD% FROM %TABLE%%FORCE%%JOIN%%WHERE%%GROUP%%HAVING%%UNION%%ORDER%%LIMIT% %LOCK%%COMMENT%';
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protected $insertSql = '%INSERT% INTO %TABLE% (%FIELD%) VALUES (%DATA%) %COMMENT%';
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protected $insertAllSql = '%INSERT% INTO %TABLE% (%FIELD%) %DATA% %COMMENT%';
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protected $updateSql = 'UPDATE %TABLE% SET %SET%%JOIN%%WHERE%%ORDER%%LIMIT% %LOCK%%COMMENT%';
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protected $deleteSql = 'DELETE FROM %TABLE%%USING%%JOIN%%WHERE%%ORDER%%LIMIT% %LOCK%%COMMENT%';
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/**
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* 架构函数
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* @access public
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* @param Connection $connection 数据库连接对象实例
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*/
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public function __construct(Connection $connection)
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{
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$this->connection = $connection;
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}
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/**
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* 获取当前的连接对象实例
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* @access public
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* @return Connection
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*/
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public function getConnection()
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{
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return $this->connection;
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}
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/**
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* 注册查询表达式解析
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* @access public
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* @param string $name 解析方法
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* @param array $parser 匹配表达式数据
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* @return $this
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*/
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public function bindParser($name, $parser)
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{
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$this->parser[$name] = $parser;
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return $this;
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}
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/**
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* 数据分析
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* @access protected
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* @param Query $query 查询对象
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* @param array $data 数据
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* @param array $fields 字段信息
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* @param array $bind 参数绑定
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* @return array
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*/
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protected function parseData(Query $query, $data = [], $fields = [], $bind = [])
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{
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if (empty($data)) {
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return [];
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}
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$options = $query->getOptions();
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// 获取绑定信息
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if (empty($bind)) {
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$bind = $this->connection->getFieldsBind($options['table']);
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}
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if (empty($fields)) {
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if ('*' == $options['field']) {
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$fields = array_keys($bind);
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} else {
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$fields = $options['field'];
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}
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}
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$result = [];
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foreach ($data as $key => $val) {
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if ('*' != $options['field'] && !in_array($key, $fields, true)) {
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continue;
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}
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$item = $this->parseKey($query, $key, true);
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if ($val instanceof Expression) {
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$result[$item] = $val->getValue();
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continue;
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} elseif (!is_scalar($val) && (in_array($key, (array) $query->getOptions('json')) || 'json' == $this->connection->getFieldsType($options['table'], $key))) {
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$val = json_encode($val, JSON_UNESCAPED_UNICODE);
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} elseif (is_object($val) && method_exists($val, '__toString')) {
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// 对象数据写入
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$val = $val->__toString();
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}
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if (false !== strpos($key, '->')) {
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list($key, $name) = explode('->', $key);
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$item = $this->parseKey($query, $key);
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$result[$item] = 'json_set(' . $item . ', \'$.' . $name . '\', ' . $this->parseDataBind($query, $key, $val, $bind) . ')';
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} elseif ('*' == $options['field'] && false === strpos($key, '.') && !in_array($key, $fields, true)) {
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if ($options['strict']) {
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throw new Exception('fields not exists:[' . $key . ']');
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}
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} elseif (is_null($val)) {
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$result[$item] = 'NULL';
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} elseif (is_array($val) && !empty($val)) {
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switch (strtoupper($val[0])) {
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case 'INC':
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$result[$item] = $item . ' + ' . floatval($val[1]);
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break;
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case 'DEC':
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$result[$item] = $item . ' - ' . floatval($val[1]);
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break;
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case 'EXP':
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throw new Exception('not support data:[' . $val[0] . ']');
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}
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} elseif (is_scalar($val)) {
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// 过滤非标量数据
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$result[$item] = $this->parseDataBind($query, $key, $val, $bind);
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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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* 数据绑定处理
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* @access protected
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* @param Query $query 查询对象
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* @param string $key 字段名
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* @param mixed $data 数据
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* @param array $bind 绑定数据
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* @return string
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*/
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protected function parseDataBind(Query $query, $key, $data, $bind = [])
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{
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if ($data instanceof Expression) {
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return $data->getValue();
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}
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$name = $query->bind($data, isset($bind[$key]) ? $bind[$key] : PDO::PARAM_STR);
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return ':' . $name;
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}
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/**
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* 字段名分析
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* @access public
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* @param Query $query 查询对象
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* @param mixed $key 字段名
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* @param bool $strict 严格检测
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* @return string
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*/
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public function parseKey(Query $query, $key, $strict = false)
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{
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return $key instanceof Expression ? $key->getValue() : $key;
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}
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/**
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* field分析
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* @access protected
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* @param Query $query 查询对象
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* @param mixed $fields 字段名
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* @return string
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*/
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protected function parseField(Query $query, $fields)
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{
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if ('*' == $fields || empty($fields)) {
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$fieldsStr = '*';
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} elseif (is_array($fields)) {
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// 支持 'field1'=>'field2' 这样的字段别名定义
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$array = [];
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foreach ($fields as $key => $field) {
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if (!is_numeric($key)) {
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$array[] = $this->parseKey($query, $key) . ' AS ' . $this->parseKey($query, $field, true);
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} else {
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$array[] = $this->parseKey($query, $field);
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}
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}
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$fieldsStr = implode(',', $array);
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}
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return $fieldsStr;
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}
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/**
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* table分析
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* @access protected
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* @param Query $query 查询对象
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* @param mixed $tables 表名
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* @return string
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*/
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protected function parseTable(Query $query, $tables)
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{
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$item = [];
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$options = $query->getOptions();
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foreach ((array) $tables as $key => $table) {
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if (!is_numeric($key)) {
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$key = $this->connection->parseSqlTable($key);
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$item[] = $this->parseKey($query, $key) . ' ' . $this->parseKey($query, $table);
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} else {
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$table = $this->connection->parseSqlTable($table);
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if (isset($options['alias'][$table])) {
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$item[] = $this->parseKey($query, $table) . ' ' . $this->parseKey($query, $options['alias'][$table]);
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} else {
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$item[] = $this->parseKey($query, $table);
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}
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}
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}
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return implode(',', $item);
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}
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/**
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* where分析
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* @access protected
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* @param Query $query 查询对象
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* @param mixed $where 查询条件
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* @return string
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*/
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protected function parseWhere(Query $query, $where)
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{
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$options = $query->getOptions();
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$whereStr = $this->buildWhere($query, $where);
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if (!empty($options['soft_delete'])) {
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// 附加软删除条件
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list($field, $condition) = $options['soft_delete'];
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$binds = $this->connection->getFieldsBind($options['table']);
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$whereStr = $whereStr ? '( ' . $whereStr . ' ) AND ' : '';
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$whereStr = $whereStr . $this->parseWhereItem($query, $field, $condition, '', $binds);
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}
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return empty($whereStr) ? '' : ' WHERE ' . $whereStr;
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}
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/**
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* 生成查询条件SQL
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* @access public
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* @param Query $query 查询对象
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* @param mixed $where 查询条件
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* @return string
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*/
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public function buildWhere(Query $query, $where)
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{
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if (empty($where)) {
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$where = [];
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}
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$whereStr = '';
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$binds = $this->connection->getFieldsBind($query->getOptions('table'));
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foreach ($where as $logic => $val) {
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$str = [];
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foreach ($val as $value) {
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if ($value instanceof Expression) {
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$str[] = ' ' . $logic . ' ( ' . $value->getValue() . ' )';
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continue;
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}
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if (is_array($value)) {
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if (key($value) !== 0) {
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throw new Exception('where express error:' . var_export($value, true));
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}
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$field = array_shift($value);
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} elseif (!($value instanceof \Closure)) {
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throw new Exception('where express error:' . var_export($value, true));
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}
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if ($value instanceof \Closure) {
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// 使用闭包查询
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$newQuery = $query->newQuery()->setConnection($this->connection);
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$value($newQuery);
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$whereClause = $this->buildWhere($query, $newQuery->getOptions('where'));
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if (!empty($whereClause)) {
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$str[] = ' ' . $logic . ' ( ' . $whereClause . ' )';
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}
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} elseif (is_array($field)) {
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array_unshift($value, $field);
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$str2 = [];
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foreach ($value as $item) {
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$str2[] = $this->parseWhereItem($query, array_shift($item), $item, $logic, $binds);
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}
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$str[] = ' ' . $logic . ' ( ' . implode(' AND ', $str2) . ' )';
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} elseif (strpos($field, '|')) {
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// 不同字段使用相同查询条件（OR）
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$array = explode('|', $field);
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$item = [];
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foreach ($array as $k) {
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$item[] = $this->parseWhereItem($query, $k, $value, '', $binds);
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}
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$str[] = ' ' . $logic . ' ( ' . implode(' OR ', $item) . ' )';
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} elseif (strpos($field, '&')) {
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// 不同字段使用相同查询条件（AND）
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$array = explode('&', $field);
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$item = [];
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foreach ($array as $k) {
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$item[] = $this->parseWhereItem($query, $k, $value, '', $binds);
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}
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$str[] = ' ' . $logic . ' ( ' . implode(' AND ', $item) . ' )';
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} else {
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// 对字段使用表达式查询
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$field = is_string($field) ? $field : '';
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$str[] = ' ' . $logic . ' ' . $this->parseWhereItem($query, $field, $value, $logic, $binds);
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}
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}
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$whereStr .= empty($whereStr) ? substr(implode(' ', $str), strlen($logic) + 1) : implode(' ', $str);
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}
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return $whereStr;
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}
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// where子单元分析
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protected function parseWhereItem(Query $query, $field, $val, $rule = '', $binds = [])
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{
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// 字段分析
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$key = $field ? $this->parseKey($query, $field, true) : '';
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// 查询规则和条件
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if (!is_array($val)) {
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$val = is_null($val) ? ['NULL', ''] : ['=', $val];
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}
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list($exp, $value) = $val;
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// 对一个字段使用多个查询条件
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if (is_array($exp)) {
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$item = array_pop($val);
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// 传入 or 或者 and
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if (is_string($item) && in_array($item, ['AND', 'and', 'OR', 'or'])) {
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$rule = $item;
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} else {
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array_push($val, $item);
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}
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foreach ($val as $k => $item) {
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$str[] = $this->parseWhereItem($query, $field, $item, $rule, $binds);
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}
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return '( ' . implode(' ' . $rule . ' ', $str) . ' )';
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}
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// 检测操作符
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$exp = strtoupper($exp);
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if (isset($this->exp[$exp])) {
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$exp = $this->exp[$exp];
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}
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if ($value instanceof Expression) {
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} elseif (is_object($value) && method_exists($value, '__toString')) {
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// 对象数据写入
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$value = $value->__toString();
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}
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if (strpos($field, '->')) {
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$jsonType = $query->getJsonFieldType($field);
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$bindType = $this->connection->getFieldBindType($jsonType);
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} else {
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$bindType = isset($binds[$field]) ? $binds[$field] : PDO::PARAM_STR;
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}
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if (is_scalar($value) && !in_array($exp, ['EXP', 'NOT NULL', 'NULL', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN']) && strpos($exp, 'TIME') === false) {
|
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if (0 === strpos($value, ':') && $query->isBind(substr($value, 1))) {
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} else {
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$name = $query->bind($value, $bindType);
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$value = ':' . $name;
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}
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}
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// 解析查询表达式
|
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foreach ($this->parser as $fun => $parse) {
|
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if (in_array($exp, $parse)) {
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$whereStr = $this->$fun($query, $key, $exp, $value, $field, $bindType, isset($val[2]) ? $val[2] : 'AND');
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break;
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}
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}
|
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|
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if (!isset($whereStr)) {
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throw new Exception('where express error:' . $exp);
|
||
}
|
||
|
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return $whereStr;
|
||
}
|
||
|
||
/**
|
||
* 模糊查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @param string $logic
|
||
* @return string
|
||
*/
|
||
protected function parseLike(Query $query, $key, $exp, $value, $field, $bindType, $logic)
|
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{
|
||
// 模糊匹配
|
||
if (is_array($value)) {
|
||
foreach ($value as $item) {
|
||
$name = $query->bind($item, $bindType);
|
||
$array[] = $key . ' ' . $exp . ' :' . $name;
|
||
}
|
||
|
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$whereStr = '(' . implode(' ' . strtoupper($logic) . ' ', $array) . ')';
|
||
} else {
|
||
$whereStr = $key . ' ' . $exp . ' ' . $value;
|
||
}
|
||
|
||
return $whereStr;
|
||
}
|
||
|
||
/**
|
||
* 表达式查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param array $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseColumn(Query $query, $key, $exp, array $value, $field, $bindType)
|
||
{
|
||
// 字段比较查询
|
||
list($op, $field2) = $value;
|
||
|
||
if (!in_array($op, ['=', '<>', '>', '>=', '<', '<='])) {
|
||
throw new Exception('where express error:' . var_export($value, true));
|
||
}
|
||
|
||
return '( ' . $key . ' ' . $op . ' ' . $this->parseKey($query, $field2, true) . ' )';
|
||
}
|
||
|
||
/**
|
||
* 表达式查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param Expression $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseExp(Query $query, $key, $exp, Expression $value, $field, $bindType)
|
||
{
|
||
// 表达式查询
|
||
return '( ' . $key . ' ' . $value->getValue() . ' )';
|
||
}
|
||
|
||
/**
|
||
* Null查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseNull(Query $query, $key, $exp, $value, $field, $bindType)
|
||
{
|
||
// NULL 查询
|
||
return $key . ' IS ' . $exp;
|
||
}
|
||
|
||
/**
|
||
* 范围查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseBetween(Query $query, $key, $exp, $value, $field, $bindType)
|
||
{
|
||
// BETWEEN 查询
|
||
$data = is_array($value) ? $value : explode(',', $value);
|
||
|
||
$min = $query->bind($data[0], $bindType);
|
||
$max = $query->bind($data[1], $bindType);
|
||
|
||
return $key . ' ' . $exp . ' :' . $min . ' AND :' . $max . ' ';
|
||
}
|
||
|
||
/**
|
||
* Exists查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseExists(Query $query, $key, $exp, $value, $field, $bindType)
|
||
{
|
||
// EXISTS 查询
|
||
if ($value instanceof \Closure) {
|
||
$value = $this->parseClosure($query, $value, false);
|
||
} elseif ($value instanceof Expression) {
|
||
$value = $value->getValue();
|
||
} else {
|
||
throw new Exception('where express error:' . $value);
|
||
}
|
||
|
||
return $exp . ' (' . $value . ')';
|
||
}
|
||
|
||
/**
|
||
* 时间比较查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseTime(Query $query, $key, $exp, $value, $field, $bindType)
|
||
{
|
||
return $key . ' ' . substr($exp, 0, 2) . ' ' . $this->parseDateTime($query, $value, $field, $bindType);
|
||
}
|
||
|
||
/**
|
||
* 大小比较查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseCompare(Query $query, $key, $exp, $value, $field, $bindType)
|
||
{
|
||
if (is_array($value)) {
|
||
throw new Exception('where express error:' . $exp . var_export($value, true));
|
||
}
|
||
|
||
// 比较运算
|
||
if ($value instanceof \Closure) {
|
||
$value = $this->parseClosure($query, $value);
|
||
}
|
||
|
||
return $key . ' ' . $exp . ' ' . $value;
|
||
}
|
||
|
||
/**
|
||
* 时间范围查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseBetweenTime(Query $query, $key, $exp, $value, $field, $bindType)
|
||
{
|
||
if (is_string($value)) {
|
||
$value = explode(',', $value);
|
||
}
|
||
|
||
return $key . ' ' . substr($exp, 0, -4)
|
||
. $this->parseDateTime($query, $value[0], $field, $bindType)
|
||
. ' AND '
|
||
. $this->parseDateTime($query, $value[1], $field, $bindType);
|
||
|
||
}
|
||
|
||
/**
|
||
* IN查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $key
|
||
* @param string $exp
|
||
* @param mixed $value
|
||
* @param string $field
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseIn(Query $query, $key, $exp, $value, $field, $bindType)
|
||
{
|
||
// IN 查询
|
||
if ($value instanceof \Closure) {
|
||
$value = $this->parseClosure($query, $value, false);
|
||
} elseif ($value instanceof Expression) {
|
||
$value = $value->getValue();
|
||
} else {
|
||
$value = array_unique(is_array($value) ? $value : explode(',', $value));
|
||
|
||
$array = [];
|
||
|
||
foreach ($value as $k => $v) {
|
||
$name = $query->bind($v, $bindType);
|
||
$array[] = ':' . $name;
|
||
}
|
||
|
||
$zone = implode(',', $array);
|
||
|
||
$value = empty($zone) ? "''" : $zone;
|
||
}
|
||
|
||
return $key . ' ' . $exp . ' (' . $value . ')';
|
||
}
|
||
|
||
/**
|
||
* 闭包子查询
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param \Closure $call
|
||
* @param bool $show
|
||
* @return string
|
||
*/
|
||
protected function parseClosure(Query $query, $call, $show = true)
|
||
{
|
||
$newQuery = $query->newQuery()->setConnection($this->connection);
|
||
$call($newQuery);
|
||
|
||
return $newQuery->buildSql($show);
|
||
}
|
||
|
||
/**
|
||
* 日期时间条件解析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $value
|
||
* @param string $key
|
||
* @param integer $bindType
|
||
* @return string
|
||
*/
|
||
protected function parseDateTime(Query $query, $value, $key, $bindType = null)
|
||
{
|
||
$options = $query->getOptions();
|
||
|
||
// 获取时间字段类型
|
||
if (strpos($key, '.')) {
|
||
list($table, $key) = explode('.', $key);
|
||
|
||
if (isset($options['alias']) && $pos = array_search($table, $options['alias'])) {
|
||
$table = $pos;
|
||
}
|
||
} else {
|
||
$table = $options['table'];
|
||
}
|
||
|
||
$type = $this->connection->getTableInfo($table, 'type');
|
||
|
||
if (isset($type[$key])) {
|
||
$info = $type[$key];
|
||
}
|
||
|
||
if (isset($info)) {
|
||
if (is_string($value)) {
|
||
$value = strtotime($value) ?: $value;
|
||
}
|
||
|
||
if (preg_match('/(datetime|timestamp)/is', $info)) {
|
||
// 日期及时间戳类型
|
||
$value = date('Y-m-d H:i:s', $value);
|
||
} elseif (preg_match('/(date)/is', $info)) {
|
||
// 日期及时间戳类型
|
||
$value = date('Y-m-d', $value);
|
||
}
|
||
}
|
||
|
||
$name = $query->bind($value, $bindType);
|
||
|
||
return ':' . $name;
|
||
}
|
||
|
||
/**
|
||
* limit分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param mixed $limit
|
||
* @return string
|
||
*/
|
||
protected function parseLimit(Query $query, $limit)
|
||
{
|
||
return (!empty($limit) && false === strpos($limit, '(')) ? ' LIMIT ' . $limit . ' ' : '';
|
||
}
|
||
|
||
/**
|
||
* join分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param array $join
|
||
* @return string
|
||
*/
|
||
protected function parseJoin(Query $query, $join)
|
||
{
|
||
$joinStr = '';
|
||
|
||
if (!empty($join)) {
|
||
foreach ($join as $item) {
|
||
list($table, $type, $on) = $item;
|
||
|
||
$condition = [];
|
||
|
||
foreach ((array) $on as $val) {
|
||
if ($val instanceof Expression) {
|
||
$condition[] = $val->getValue();
|
||
} elseif (strpos($val, '=')) {
|
||
list($val1, $val2) = explode('=', $val, 2);
|
||
|
||
$condition[] = $this->parseKey($query, $val1) . '=' . $this->parseKey($query, $val2);
|
||
} else {
|
||
$condition[] = $val;
|
||
}
|
||
}
|
||
|
||
$table = $this->parseTable($query, $table);
|
||
|
||
$joinStr .= ' ' . $type . ' JOIN ' . $table . ' ON ' . implode(' AND ', $condition);
|
||
}
|
||
}
|
||
|
||
return $joinStr;
|
||
}
|
||
|
||
/**
|
||
* order分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param mixed $order
|
||
* @return string
|
||
*/
|
||
protected function parseOrder(Query $query, $order)
|
||
{
|
||
foreach ($order as $key => $val) {
|
||
if ($val instanceof Expression) {
|
||
$array[] = $val->getValue();
|
||
} elseif (is_array($val) && preg_match('/^[\w\.]+$/', $key)) {
|
||
$array[] = $this->parseOrderField($query, $key, $val);
|
||
} elseif ('[rand]' == $val) {
|
||
$array[] = $this->parseRand($query);
|
||
} elseif (is_string($val)) {
|
||
if (is_numeric($key)) {
|
||
list($key, $sort) = explode(' ', strpos($val, ' ') ? $val : $val . ' ');
|
||
} else {
|
||
$sort = $val;
|
||
}
|
||
|
||
if (preg_match('/^[\w\.]+$/', $key)) {
|
||
$sort = strtoupper($sort);
|
||
$sort = in_array($sort, ['ASC', 'DESC'], true) ? ' ' . $sort : '';
|
||
$array[] = $this->parseKey($query, $key, true) . $sort;
|
||
} else {
|
||
throw new Exception('order express error:' . $key);
|
||
}
|
||
}
|
||
}
|
||
|
||
return empty($array) ? '' : ' ORDER BY ' . implode(',', $array);
|
||
}
|
||
|
||
/**
|
||
* orderField分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param mixed $key
|
||
* @param array $val
|
||
* @return string
|
||
*/
|
||
protected function parseOrderField($query, $key, $val)
|
||
{
|
||
if (isset($val['sort'])) {
|
||
$sort = $val['sort'];
|
||
unset($val['sort']);
|
||
} else {
|
||
$sort = '';
|
||
}
|
||
|
||
$sort = strtoupper($sort);
|
||
$sort = in_array($sort, ['ASC', 'DESC'], true) ? ' ' . $sort : '';
|
||
|
||
$options = $query->getOptions();
|
||
$bind = $this->connection->getFieldsBind($options['table']);
|
||
|
||
foreach ($val as $k => $item) {
|
||
$val[$k] = $this->parseDataBind($query, $key, $item, $bind);
|
||
}
|
||
|
||
return 'field(' . $this->parseKey($query, $key, true) . ',' . implode(',', $val) . ')' . $sort;
|
||
}
|
||
|
||
/**
|
||
* group分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param mixed $group
|
||
* @return string
|
||
*/
|
||
protected function parseGroup(Query $query, $group)
|
||
{
|
||
if (empty($group)) {
|
||
return '';
|
||
}
|
||
|
||
if (is_string($group)) {
|
||
$group = explode(',', $group);
|
||
}
|
||
|
||
foreach ($group as $key) {
|
||
$val[] = $this->parseKey($query, $key);
|
||
}
|
||
|
||
return ' GROUP BY ' . implode(',', $val);
|
||
}
|
||
|
||
/**
|
||
* having分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $having
|
||
* @return string
|
||
*/
|
||
protected function parseHaving(Query $query, $having)
|
||
{
|
||
return !empty($having) ? ' HAVING ' . $having : '';
|
||
}
|
||
|
||
/**
|
||
* comment分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param string $comment
|
||
* @return string
|
||
*/
|
||
protected function parseComment(Query $query, $comment)
|
||
{
|
||
if (false !== strpos($comment, '*/')) {
|
||
$comment = strstr($comment, '*/', true);
|
||
}
|
||
|
||
return !empty($comment) ? ' /* ' . $comment . ' */' : '';
|
||
}
|
||
|
||
/**
|
||
* distinct分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param mixed $distinct
|
||
* @return string
|
||
*/
|
||
protected function parseDistinct(Query $query, $distinct)
|
||
{
|
||
return !empty($distinct) ? ' DISTINCT ' : '';
|
||
}
|
||
|
||
/**
|
||
* union分析
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param mixed $union
|
||
* @return string
|
||
*/
|
||
protected function parseUnion(Query $query, $union)
|
||
{
|
||
if (empty($union)) {
|
||
return '';
|
||
}
|
||
|
||
$type = $union['type'];
|
||
unset($union['type']);
|
||
|
||
foreach ($union as $u) {
|
||
if ($u instanceof \Closure) {
|
||
$sql[] = $type . ' ' . $this->parseClosure($query, $u);
|
||
} elseif (is_string($u)) {
|
||
$sql[] = $type . ' ( ' . $this->connection->parseSqlTable($u) . ' )';
|
||
}
|
||
}
|
||
|
||
return ' ' . implode(' ', $sql);
|
||
}
|
||
|
||
/**
|
||
* index分析，可在操作链中指定需要强制使用的索引
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param mixed $index
|
||
* @return string
|
||
*/
|
||
protected function parseForce(Query $query, $index)
|
||
{
|
||
if (empty($index)) {
|
||
return '';
|
||
}
|
||
|
||
return sprintf(" FORCE INDEX ( %s ) ", is_array($index) ? implode(',', $index) : $index);
|
||
}
|
||
|
||
/**
|
||
* 设置锁机制
|
||
* @access protected
|
||
* @param Query $query 查询对象
|
||
* @param bool|string $lock
|
||
* @return string
|
||
*/
|
||
protected function parseLock(Query $query, $lock = false)
|
||
{
|
||
if (is_bool($lock)) {
|
||
return $lock ? ' FOR UPDATE ' : '';
|
||
} elseif (is_string($lock) && !empty($lock)) {
|
||
return ' ' . trim($lock) . ' ';
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 生成查询SQL
|
||
* @access public
|
||
* @param Query $query 查询对象
|
||
* @return string
|
||
*/
|
||
public function select(Query $query)
|
||
{
|
||
$options = $query->getOptions();
|
||
|
||
return str_replace(
|
||
['%TABLE%', '%DISTINCT%', '%FIELD%', '%JOIN%', '%WHERE%', '%GROUP%', '%HAVING%', '%ORDER%', '%LIMIT%', '%UNION%', '%LOCK%', '%COMMENT%', '%FORCE%'],
|
||
[
|
||
$this->parseTable($query, $options['table']),
|
||
$this->parseDistinct($query, $options['distinct']),
|
||
$this->parseField($query, $options['field']),
|
||
$this->parseJoin($query, $options['join']),
|
||
$this->parseWhere($query, $options['where']),
|
||
$this->parseGroup($query, $options['group']),
|
||
$this->parseHaving($query, $options['having']),
|
||
$this->parseOrder($query, $options['order']),
|
||
$this->parseLimit($query, $options['limit']),
|
||
$this->parseUnion($query, $options['union']),
|
||
$this->parseLock($query, $options['lock']),
|
||
$this->parseComment($query, $options['comment']),
|
||
$this->parseForce($query, $options['force']),
|
||
],
|
||
$this->selectSql);
|
||
}
|
||
|
||
/**
|
||
* 生成Insert SQL
|
||
* @access public
|
||
* @param Query $query 查询对象
|
||
* @param bool $replace 是否replace
|
||
* @return string
|
||
*/
|
||
public function insert(Query $query, $replace = false)
|
||
{
|
||
$options = $query->getOptions();
|
||
|
||
// 分析并处理数据
|
||
$data = $this->parseData($query, $options['data']);
|
||
if (empty($data)) {
|
||
return '';
|
||
}
|
||
|
||
$fields = array_keys($data);
|
||
$values = array_values($data);
|
||
|
||
return str_replace(
|
||
['%INSERT%', '%TABLE%', '%FIELD%', '%DATA%', '%COMMENT%'],
|
||
[
|
||
$replace ? 'REPLACE' : 'INSERT',
|
||
$this->parseTable($query, $options['table']),
|
||
implode(' , ', $fields),
|
||
implode(' , ', $values),
|
||
$this->parseComment($query, $options['comment']),
|
||
],
|
||
$this->insertSql);
|
||
}
|
||
|
||
/**
|
||
* 生成insertall SQL
|
||
* @access public
|
||
* @param Query $query 查询对象
|
||
* @param array $dataSet 数据集
|
||
* @param bool $replace 是否replace
|
||
* @return string
|
||
*/
|
||
public function insertAll(Query $query, $dataSet, $replace = false)
|
||
{
|
||
$options = $query->getOptions();
|
||
|
||
// 获取合法的字段
|
||
if ('*' == $options['field']) {
|
||
$allowFields = $this->connection->getTableFields($options['table']);
|
||
} else {
|
||
$allowFields = $options['field'];
|
||
}
|
||
|
||
// 获取绑定信息
|
||
$bind = $this->connection->getFieldsBind($options['table']);
|
||
|
||
foreach ($dataSet as $data) {
|
||
$data = $this->parseData($query, $data, $allowFields, $bind);
|
||
|
||
$values[] = 'SELECT ' . implode(',', array_values($data));
|
||
|
||
if (!isset($insertFields)) {
|
||
$insertFields = array_keys($data);
|
||
}
|
||
}
|
||
|
||
$fields = [];
|
||
|
||
foreach ($insertFields as $field) {
|
||
$fields[] = $this->parseKey($query, $field);
|
||
}
|
||
|
||
return str_replace(
|
||
['%INSERT%', '%TABLE%', '%FIELD%', '%DATA%', '%COMMENT%'],
|
||
[
|
||
$replace ? 'REPLACE' : 'INSERT',
|
||
$this->parseTable($query, $options['table']),
|
||
implode(' , ', $fields),
|
||
implode(' UNION ALL ', $values),
|
||
$this->parseComment($query, $options['comment']),
|
||
],
|
||
$this->insertAllSql);
|
||
}
|
||
|
||
/**
|
||
* 生成slect insert SQL
|
||
* @access public
|
||
* @param Query $query 查询对象
|
||
* @param array $fields 数据
|
||
* @param string $table 数据表
|
||
* @return string
|
||
*/
|
||
public function selectInsert(Query $query, $fields, $table)
|
||
{
|
||
if (is_string($fields)) {
|
||
$fields = explode(',', $fields);
|
||
}
|
||
|
||
foreach ($fields as &$field) {
|
||
$field = $this->parseKey($query, $field, true);
|
||
}
|
||
|
||
return 'INSERT INTO ' . $this->parseTable($query, $table) . ' (' . implode(',', $fields) . ') ' . $this->select($query);
|
||
}
|
||
|
||
/**
|
||
* 生成update SQL
|
||
* @access public
|
||
* @param Query $query 查询对象
|
||
* @return string
|
||
*/
|
||
public function update(Query $query)
|
||
{
|
||
$options = $query->getOptions();
|
||
|
||
$data = $this->parseData($query, $options['data']);
|
||
|
||
if (empty($data)) {
|
||
return '';
|
||
}
|
||
|
||
foreach ($data as $key => $val) {
|
||
$set[] = $key . ' = ' . $val;
|
||
}
|
||
|
||
return str_replace(
|
||
['%TABLE%', '%SET%', '%JOIN%', '%WHERE%', '%ORDER%', '%LIMIT%', '%LOCK%', '%COMMENT%'],
|
||
[
|
||
$this->parseTable($query, $options['table']),
|
||
implode(' , ', $set),
|
||
$this->parseJoin($query, $options['join']),
|
||
$this->parseWhere($query, $options['where']),
|
||
$this->parseOrder($query, $options['order']),
|
||
$this->parseLimit($query, $options['limit']),
|
||
$this->parseLock($query, $options['lock']),
|
||
$this->parseComment($query, $options['comment']),
|
||
],
|
||
$this->updateSql);
|
||
}
|
||
|
||
/**
|
||
* 生成delete SQL
|
||
* @access public
|
||
* @param Query $query 查询对象
|
||
* @return string
|
||
*/
|
||
public function delete(Query $query)
|
||
{
|
||
$options = $query->getOptions();
|
||
|
||
return str_replace(
|
||
['%TABLE%', '%USING%', '%JOIN%', '%WHERE%', '%ORDER%', '%LIMIT%', '%LOCK%', '%COMMENT%'],
|
||
[
|
||
$this->parseTable($query, $options['table']),
|
||
!empty($options['using']) ? ' USING ' . $this->parseTable($query, $options['using']) . ' ' : '',
|
||
$this->parseJoin($query, $options['join']),
|
||
$this->parseWhere($query, $options['where']),
|
||
$this->parseOrder($query, $options['order']),
|
||
$this->parseLimit($query, $options['limit']),
|
||
$this->parseLock($query, $options['lock']),
|
||
$this->parseComment($query, $options['comment']),
|
||
],
|
||
$this->deleteSql);
|
||
}
|
||
}
|