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<?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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// 查询对象实例
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protected $query;
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// 数据库表达式
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protected $exp = ['eq' => '=', 'neq' => '<>', 'gt' => '>', 'egt' => '>=', 'lt' => '<', 'elt' => '<=', 'notlike' => 'NOT LIKE', 'not like' => 'NOT LIKE', 'like' => 'LIKE', 'in' => 'IN', 'exp' => 'EXP', 'notin' => 'NOT IN', 'not in' => 'NOT IN', 'between' => 'BETWEEN', 'not between' => 'NOT BETWEEN', 'notbetween' => 'NOT BETWEEN', 'exists' => 'EXISTS', 'notexists' => 'NOT EXISTS', 'not exists' => 'NOT EXISTS', 'null' => 'NULL', 'notnull' => 'NOT NULL', 'not null' => 'NOT NULL', '> time' => '> TIME', '< time' => '< TIME', '>= time' => '>= TIME', '<= time' => '<= TIME', 'between time' => 'BETWEEN TIME', 'not between time' => 'NOT BETWEEN TIME', 'notbetween time' => 'NOT BETWEEN TIME'];
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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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* 构造函数
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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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* @param Query $query 数据库查询对象实例
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*/
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public function __construct(Connection $connection, Query $query)
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{
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$this->connection = $connection;
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$this->query = $query;
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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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* 获取当前的Query对象实例
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* @access public
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* @return Query
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*/
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public function getQuery()
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{
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return $this->query;
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}
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/**
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* 将SQL语句中的__TABLE_NAME__字符串替换成带前缀的表名（小写）
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* @access protected
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* @param string $sql sql语句
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* @return string
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*/
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protected function parseSqlTable($sql)
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{
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return $this->query->parseSqlTable($sql);
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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 array $data 数据
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* @param array $options 查询参数
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* @return array
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* @throws Exception
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*/
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protected function parseData($data, $options)
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{
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if (empty($data)) {
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return [];
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}
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// 获取绑定信息
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$bind = $this->query->getFieldsBind($options['table']);
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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 = $options['field'];
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}
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$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 = $this->parseKey($key, $options, true);
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if ($val instanceof Expression) {
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$result[$item] = $val->getValue();
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continue;
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} elseif (is_object($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, '.') && !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 (strtolower($val[0])) {
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case 'inc':
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$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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if (0 === strpos($val, ':') && $this->query->isBind(substr($val, 1))) {
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$result[$item] = $val;
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} else {
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$key = str_replace('.', '_', $key);
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$this->query->bind('data__' . $key, $val, isset($bind[$key]) ? $bind[$key] : PDO::PARAM_STR);
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$result[$item] = ':data__' . $key;
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}
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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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* 字段名分析
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* @access protected
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* @param string $key
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* @param array $options
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* @return string
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*/
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protected function parseKey($key, $options = [], $strict = false)
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{
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return $key;
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}
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/**
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* value分析
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* @access protected
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* @param mixed $value
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* @param string $field
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* @return string|array
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*/
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protected function parseValue($value, $field = '')
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{
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if (is_string($value)) {
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$value = strpos($value, ':') === 0 && $this->query->isBind(substr($value, 1)) ? $value : $this->connection->quote($value);
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} elseif (is_array($value)) {
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$value = array_map([$this, 'parseValue'], $value);
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} elseif (is_bool($value)) {
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$value = $value ? '1' : '0';
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} elseif (is_null($value)) {
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$value = 'null';
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}
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return $value;
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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 mixed $fields
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* @param array $options
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* @return string
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*/
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protected function parseField($fields, $options = [])
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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 => $field) {
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if ($field instanceof Expression) {
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$array[] = $field->getValue();
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} elseif (!is_numeric($key)) {
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$array[] = $this->parseKey($key, $options) . ' AS ' . $this->parseKey($field, $options, true);
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} else {
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$array[] = $this->parseKey($field, $options);
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}
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}
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$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 mixed $tables
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* @param array $options
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* @return string
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*/
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protected function parseTable($tables, $options = [])
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{
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$item = [];
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foreach ((array) $tables as $key => $table) {
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if (!is_numeric($key)) {
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$key = $this->parseSqlTable($key);
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$item[] = $this->parseKey($key) . ' ' . (isset($options['alias'][$table]) ? $this->parseKey($options['alias'][$table]) : $this->parseKey($table));
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} else {
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$table = $this->parseSqlTable($table);
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if (isset($options['alias'][$table])) {
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$item[] = $this->parseKey($table) . ' ' . $this->parseKey($options['alias'][$table]);
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} else {
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$item[] = $this->parseKey($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 mixed $where 查询条件
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* @param array $options 查询参数
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* @return string
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*/
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protected function parseWhere($where, $options)
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{
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$whereStr = $this->buildWhere($where, $options);
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if (!empty($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 = $this->query->getFieldsBind($options['table']);
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$whereStr = $whereStr ? '( ' . $whereStr . ' ) AND ' : '';
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$whereStr = $whereStr . $this->parseWhereItem($field, $condition, '', $options, $binds);
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}
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return empty($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 mixed $where
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* @param array $options
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* @return string
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*/
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public function buildWhere($where, $options)
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{
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if (empty($where)) {
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$where = [];
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}
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if ($where instanceof Query) {
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return $this->buildWhere($where->getOptions('where'), $options);
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}
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$whereStr = '';
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$binds = $this->query->getFieldsBind($options['table']);
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foreach ($where as $key => $val) {
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$str = [];
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foreach ($val as $field => $value) {
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if ($value instanceof Expression) {
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$str[] = ' ' . $key . ' ( ' . $value->getValue() . ' )';
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} elseif ($value instanceof \Closure) {
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// 使用闭包查询
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$query = new Query($this->connection);
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call_user_func_array($value, [ & $query]);
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$whereClause = $this->buildWhere($query->getOptions('where'), $options);
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if (!empty($whereClause)) {
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$str[] = ' ' . $key . ' ( ' . $whereClause . ' )';
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}
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} elseif (strpos($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[] = $this->parseWhereItem($k, $value, '', $options, $binds);
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}
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$str[] = ' ' . $key . ' ( ' . 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[] = $this->parseWhereItem($k, $value, '', $options, $binds);
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}
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$str[] = ' ' . $key . ' ( ' . 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[] = ' ' . $key . ' ' . $this->parseWhereItem($field, $value, $key, $options, $binds);
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}
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}
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$whereStr .= empty($whereStr) ? substr(implode(' ', $str), strlen($key) + 1) : implode(' ', $str);
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}
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return $whereStr;
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}
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// where子单元分析
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protected function parseWhereItem($field, $val, $rule = '', $options = [], $binds = [], $bindName = null)
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{
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// 字段分析
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$key = $field ? $this->parseKey($field, $options, true) : '';
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// 查询规则和条件
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if (!is_array($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 => $item) {
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$bindName = 'where_' . str_replace('.', '_', $field) . '_' . $k;
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$str[] = $this->parseWhereItem($field, $item, $rule, $options, $binds, $bindName);
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}
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return '( ' . implode(' ' . $rule . ' ', $str) . ' )';
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}
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// 检测操作符
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if (!in_array($exp, $this->exp)) {
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$exp = strtolower($exp);
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if (isset($this->exp[$exp])) {
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$exp = $this->exp[$exp];
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} else {
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throw new Exception('where express error:' . $exp);
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}
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}
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$bindName = $bindName ?: 'where_' . $rule . '_' . str_replace(['.', '-'], '_', $field);
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if (preg_match('/\W/', $bindName)) {
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// 处理带非单词字符的字段名
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$bindName = md5($bindName);
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}
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if ($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 = $value->__toString();
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}
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$bindType = isset($binds[$field]) ? $binds[$field] : PDO::PARAM_STR;
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if (is_scalar($value) && array_key_exists($field, $binds) && !in_array($exp, ['EXP', 'NOT NULL', 'NULL', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN']) && strpos($exp, 'TIME') === false) {
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if (strpos($value, ':') !== 0 || !$this->query->isBind(substr($value, 1))) {
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if ($this->query->isBind($bindName)) {
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$bindName .= '_' . str_replace('.', '_', uniqid('', true));
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}
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$this->query->bind($bindName, $value, $bindType);
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$value = ':' . $bindName;
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}
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}
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$whereStr = '';
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if (in_array($exp, ['=', '<>', '>', '>=', '<', '<='])) {
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// 比较运算
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if ($value instanceof \Closure) {
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$whereStr .= $key . ' ' . $exp . ' ' . $this->parseClosure($value);
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} else {
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$whereStr .= $key . ' ' . $exp . ' ' . $this->parseValue($value, $field);
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}
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} elseif ('LIKE' == $exp || 'NOT LIKE' == $exp) {
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// 模糊匹配
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if (is_array($value)) {
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foreach ($value as $item) {
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$array[] = $key . ' ' . $exp . ' ' . $this->parseValue($item, $field);
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}
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$logic = isset($val[2]) ? $val[2] : 'AND';
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$whereStr .= '(' . implode($array, ' ' . strtoupper($logic) . ' ') . ')';
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} else {
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$whereStr .= $key . ' ' . $exp . ' ' . $this->parseValue($value, $field);
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}
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} elseif ('EXP' == $exp) {
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// 表达式查询
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if ($value instanceof Expression) {
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$whereStr .= '( ' . $key . ' ' . $value->getValue() . ' )';
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} else {
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throw new Exception('where express error:' . $exp);
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}
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} elseif (in_array($exp, ['NOT NULL', 'NULL'])) {
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// NULL 查询
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$whereStr .= $key . ' IS ' . $exp;
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} elseif (in_array($exp, ['NOT IN', 'IN'])) {
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|
|
// IN 查询
|
|
|
if ($value instanceof \Closure) {
|
|
|
$whereStr .= $key . ' ' . $exp . ' ' . $this->parseClosure($value);
|
|
|
} else {
|
|
|
$value = array_unique(is_array($value) ? $value : explode(',', $value));
|
|
|
if (array_key_exists($field, $binds)) {
|
|
|
$bind = [];
|
|
|
$array = [];
|
|
|
$i = 0;
|
|
|
foreach ($value as $v) {
|
|
|
$i++;
|
|
|
if ($this->query->isBind($bindName . '_in_' . $i)) {
|
|
|
$bindKey = $bindName . '_in_' . uniqid() . '_' . $i;
|
|
|
} else {
|
|
|
$bindKey = $bindName . '_in_' . $i;
|
|
|
}
|
|
|
$bind[$bindKey] = [$v, $bindType];
|
|
|
$array[] = ':' . $bindKey;
|
|
|
}
|
|
|
$this->query->bind($bind);
|
|
|
$zone = implode(',', $array);
|
|
|
} else {
|
|
|
$zone = implode(',', $this->parseValue($value, $field));
|
|
|
}
|
|
|
$whereStr .= $key . ' ' . $exp . ' (' . (empty($zone) ? "''" : $zone) . ')';
|
|
|
}
|
|
|
} elseif (in_array($exp, ['NOT BETWEEN', 'BETWEEN'])) {
|
|
|
// BETWEEN 查询
|
|
|
$data = is_array($value) ? $value : explode(',', $value);
|
|
|
if (array_key_exists($field, $binds)) {
|
|
|
if ($this->query->isBind($bindName . '_between_1')) {
|
|
|
$bindKey1 = $bindName . '_between_1' . uniqid();
|
|
|
$bindKey2 = $bindName . '_between_2' . uniqid();
|
|
|
} else {
|
|
|
$bindKey1 = $bindName . '_between_1';
|
|
|
$bindKey2 = $bindName . '_between_2';
|
|
|
}
|
|
|
$bind = [
|
|
|
$bindKey1 => [$data[0], $bindType],
|
|
|
$bindKey2 => [$data[1], $bindType],
|
|
|
];
|
|
|
$this->query->bind($bind);
|
|
|
$between = ':' . $bindKey1 . ' AND :' . $bindKey2;
|
|
|
} else {
|
|
|
$between = $this->parseValue($data[0], $field) . ' AND ' . $this->parseValue($data[1], $field);
|
|
|
}
|
|
|
$whereStr .= $key . ' ' . $exp . ' ' . $between;
|
|
|
} elseif (in_array($exp, ['NOT EXISTS', 'EXISTS'])) {
|
|
|
// EXISTS 查询
|
|
|
if ($value instanceof \Closure) {
|
|
|
$whereStr .= $exp . ' ' . $this->parseClosure($value);
|
|
|
} else {
|
|
|
$whereStr .= $exp . ' (' . $value . ')';
|
|
|
}
|
|
|
} elseif (in_array($exp, ['< TIME', '> TIME', '<= TIME', '>= TIME'])) {
|
|
|
$whereStr .= $key . ' ' . substr($exp, 0, 2) . ' ' . $this->parseDateTime($value, $field, $options, $bindName, $bindType);
|
|
|
} elseif (in_array($exp, ['BETWEEN TIME', 'NOT BETWEEN TIME'])) {
|
|
|
if (is_string($value)) {
|
|
|
$value = explode(',', $value);
|
|
|
}
|
|
|
|
|
|
$whereStr .= $key . ' ' . substr($exp, 0, -4) . $this->parseDateTime($value[0], $field, $options, $bindName . '_between_1', $bindType) . ' AND ' . $this->parseDateTime($value[1], $field, $options, $bindName . '_between_2', $bindType);
|
|
|
}
|
|
|
return $whereStr;
|
|
|
}
|
|
|
|
|
|
// 执行闭包子查询
|
|
|
protected function parseClosure($call, $show = true)
|
|
|
{
|
|
|
$query = new Query($this->connection);
|
|
|
call_user_func_array($call, [ & $query]);
|
|
|
return $query->buildSql($show);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 日期时间条件解析
|
|
|
* @access protected
|
|
|
* @param string $value
|
|
|
* @param string $key
|
|
|
* @param array $options
|
|
|
* @param string $bindName
|
|
|
* @param integer $bindType
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseDateTime($value, $key, $options = [], $bindName = null, $bindType = null)
|
|
|
{
|
|
|
// 获取时间字段类型
|
|
|
if (strpos($key, '.')) {
|
|
|
list($table, $key) = explode('.', $key);
|
|
|
if (isset($options['alias']) && $pos = array_search($table, $options['alias'])) {
|
|
|
$table = $pos;
|
|
|
}
|
|
|
} else {
|
|
|
$table = $options['table'];
|
|
|
}
|
|
|
$type = $this->query->getTableInfo($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);
|
|
|
}
|
|
|
}
|
|
|
$bindName = $bindName ?: $key;
|
|
|
|
|
|
if ($this->query->isBind($bindName)) {
|
|
|
$bindName .= '_' . str_replace('.', '_', uniqid('', true));
|
|
|
}
|
|
|
|
|
|
$this->query->bind($bindName, $value, $bindType);
|
|
|
return ':' . $bindName;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* limit分析
|
|
|
* @access protected
|
|
|
* @param mixed $limit
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseLimit($limit)
|
|
|
{
|
|
|
return (!empty($limit) && false === strpos($limit, '(')) ? ' LIMIT ' . $limit . ' ' : '';
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* join分析
|
|
|
* @access protected
|
|
|
* @param array $join
|
|
|
* @param array $options 查询条件
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseJoin($join, $options = [])
|
|
|
{
|
|
|
$joinStr = '';
|
|
|
if (!empty($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[] = $this->parseKey($val1, $options) . '=' . $this->parseKey($val2, $options);
|
|
|
} else {
|
|
|
$condition[] = $val;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
$table = $this->parseTable($table, $options);
|
|
|
$joinStr .= ' ' . $type . ' JOIN ' . $table . ' ON ' . implode(' AND ', $condition);
|
|
|
}
|
|
|
}
|
|
|
return $joinStr;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* order分析
|
|
|
* @access protected
|
|
|
* @param mixed $order
|
|
|
* @param array $options 查询条件
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseOrder($order, $options = [])
|
|
|
{
|
|
|
if (empty($order)) {
|
|
|
return '';
|
|
|
}
|
|
|
|
|
|
$array = [];
|
|
|
foreach ($order as $key => $val) {
|
|
|
if ($val instanceof Expression) {
|
|
|
$array[] = $val->getValue();
|
|
|
} elseif ('[rand]' == $val) {
|
|
|
$array[] = $this->parseRand();
|
|
|
} else {
|
|
|
if (is_numeric($key)) {
|
|
|
list($key, $sort) = explode(' ', strpos($val, ' ') ? $val : $val . ' ');
|
|
|
} else {
|
|
|
$sort = $val;
|
|
|
}
|
|
|
$sort = strtoupper($sort);
|
|
|
$sort = in_array($sort, ['ASC', 'DESC'], true) ? ' ' . $sort : '';
|
|
|
$array[] = $this->parseKey($key, $options, true) . $sort;
|
|
|
}
|
|
|
}
|
|
|
$order = implode(',', $array);
|
|
|
|
|
|
return !empty($order) ? ' ORDER BY ' . $order : '';
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* group分析
|
|
|
* @access protected
|
|
|
* @param mixed $group
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseGroup($group)
|
|
|
{
|
|
|
return !empty($group) ? ' GROUP BY ' . $this->parseKey($group) : '';
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* having分析
|
|
|
* @access protected
|
|
|
* @param string $having
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseHaving($having)
|
|
|
{
|
|
|
return !empty($having) ? ' HAVING ' . $having : '';
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* comment分析
|
|
|
* @access protected
|
|
|
* @param string $comment
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseComment($comment)
|
|
|
{
|
|
|
if (false !== strpos($comment, '*/')) {
|
|
|
$comment = strstr($comment, '*/', true);
|
|
|
}
|
|
|
return !empty($comment) ? ' /* ' . $comment . ' */' : '';
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* distinct分析
|
|
|
* @access protected
|
|
|
* @param mixed $distinct
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseDistinct($distinct)
|
|
|
{
|
|
|
return !empty($distinct) ? ' DISTINCT ' : '';
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* union分析
|
|
|
* @access protected
|
|
|
* @param mixed $union
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseUnion($union)
|
|
|
{
|
|
|
if (empty($union)) {
|
|
|
return '';
|
|
|
}
|
|
|
$type = $union['type'];
|
|
|
unset($union['type']);
|
|
|
foreach ($union as $u) {
|
|
|
if ($u instanceof \Closure) {
|
|
|
$sql[] = $type . ' ' . $this->parseClosure($u);
|
|
|
} elseif (is_string($u)) {
|
|
|
$sql[] = $type . ' ( ' . $this->parseSqlTable($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 mixed $index
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseForce($index)
|
|
|
{
|
|
|
if (empty($index)) {
|
|
|
return '';
|
|
|
}
|
|
|
|
|
|
return sprintf(" FORCE INDEX ( %s ) ", is_array($index) ? implode(',', $index) : $index);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 设置锁机制
|
|
|
* @access protected
|
|
|
* @param bool|string $lock
|
|
|
* @return string
|
|
|
*/
|
|
|
protected function parseLock($lock = false)
|
|
|
{
|
|
|
if (is_bool($lock)) {
|
|
|
return $lock ? ' FOR UPDATE ' : '';
|
|
|
} elseif (is_string($lock)) {
|
|
|
return ' ' . trim($lock) . ' ';
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 生成查询SQL
|
|
|
* @access public
|
|
|
* @param array $options 表达式
|
|
|
* @return string
|
|
|
*/
|
|
|
public function select($options = [])
|
|
|
{
|
|
|
$sql = str_replace(
|
|
|
['%TABLE%', '%DISTINCT%', '%FIELD%', '%JOIN%', '%WHERE%', '%GROUP%', '%HAVING%', '%ORDER%', '%LIMIT%', '%UNION%', '%LOCK%', '%COMMENT%', '%FORCE%'],
|
|
|
[
|
|
|
$this->parseTable($options['table'], $options),
|
|
|
$this->parseDistinct($options['distinct']),
|
|
|
$this->parseField($options['field'], $options),
|
|
|
$this->parseJoin($options['join'], $options),
|
|
|
$this->parseWhere($options['where'], $options),
|
|
|
$this->parseGroup($options['group']),
|
|
|
$this->parseHaving($options['having']),
|
|
|
$this->parseOrder($options['order'], $options),
|
|
|
$this->parseLimit($options['limit']),
|
|
|
$this->parseUnion($options['union']),
|
|
|
$this->parseLock($options['lock']),
|
|
|
$this->parseComment($options['comment']),
|
|
|
$this->parseForce($options['force']),
|
|
|
], $this->selectSql);
|
|
|
return $sql;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 生成insert SQL
|
|
|
* @access public
|
|
|
* @param array $data 数据
|
|
|
* @param array $options 表达式
|
|
|
* @param bool $replace 是否replace
|
|
|
* @return string
|
|
|
*/
|
|
|
public function insert(array $data, $options = [], $replace = false)
|
|
|
{
|
|
|
// 分析并处理数据
|
|
|
$data = $this->parseData($data, $options);
|
|
|
if (empty($data)) {
|
|
|
return 0;
|
|
|
}
|
|
|
$fields = array_keys($data);
|
|
|
$values = array_values($data);
|
|
|
|
|
|
$sql = str_replace(
|
|
|
['%INSERT%', '%TABLE%', '%FIELD%', '%DATA%', '%COMMENT%'],
|
|
|
[
|
|
|
$replace ? 'REPLACE' : 'INSERT',
|
|
|
$this->parseTable($options['table'], $options),
|
|
|
implode(' , ', $fields),
|
|
|
implode(' , ', $values),
|
|
|
$this->parseComment($options['comment']),
|
|
|
], $this->insertSql);
|
|
|
|
|
|
return $sql;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 生成insertall SQL
|
|
|
* @access public
|
|
|
* @param array $dataSet 数据集
|
|
|
* @param array $options 表达式
|
|
|
* @param bool $replace 是否replace
|
|
|
* @return string
|
|
|
* @throws Exception
|
|
|
*/
|
|
|
public function insertAll($dataSet, $options = [], $replace = false)
|
|
|
{
|
|
|
// 获取合法的字段
|
|
|
if ('*' == $options['field']) {
|
|
|
$fields = array_keys($this->query->getFieldsType($options['table']));
|
|
|
} else {
|
|
|
$fields = $options['field'];
|
|
|
}
|
|
|
|
|
|
foreach ($dataSet as $data) {
|
|
|
foreach ($data as $key => $val) {
|
|
|
if (!in_array($key, $fields, true)) {
|
|
|
if ($options['strict']) {
|
|
|
throw new Exception('fields not exists:[' . $key . ']');
|
|
|
}
|
|
|
unset($data[$key]);
|
|
|
} elseif (is_null($val)) {
|
|
|
$data[$key] = 'NULL';
|
|
|
} elseif (is_scalar($val)) {
|
|
|
$data[$key] = $this->parseValue($val, $key);
|
|
|
} elseif (is_object($val) && method_exists($val, '__toString')) {
|
|
|
// 对象数据写入
|
|
|
$data[$key] = $val->__toString();
|
|
|
} else {
|
|
|
// 过滤掉非标量数据
|
|
|
unset($data[$key]);
|
|
|
}
|
|
|
}
|
|
|
$value = array_values($data);
|
|
|
$values[] = 'SELECT ' . implode(',', $value);
|
|
|
|
|
|
if (!isset($insertFields)) {
|
|
|
$insertFields = array_keys($data);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
foreach ($insertFields as $field) {
|
|
|
$fields[] = $this->parseKey($field, $options, true);
|
|
|
}
|
|
|
|
|
|
return str_replace(
|
|
|
['%INSERT%', '%TABLE%', '%FIELD%', '%DATA%', '%COMMENT%'],
|
|
|
[
|
|
|
$replace ? 'REPLACE' : 'INSERT',
|
|
|
$this->parseTable($options['table'], $options),
|
|
|
implode(' , ', $insertFields),
|
|
|
implode(' UNION ALL ', $values),
|
|
|
$this->parseComment($options['comment']),
|
|
|
], $this->insertAllSql);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 生成select insert SQL
|
|
|
* @access public
|
|
|
* @param array $fields 数据
|
|
|
* @param string $table 数据表
|
|
|
* @param array $options 表达式
|
|
|
* @return string
|
|
|
*/
|
|
|
public function selectInsert($fields, $table, $options)
|
|
|
{
|
|
|
if (is_string($fields)) {
|
|
|
$fields = explode(',', $fields);
|
|
|
}
|
|
|
|
|
|
$fields = array_map([$this, 'parseKey'], $fields);
|
|
|
$sql = 'INSERT INTO ' . $this->parseTable($table, $options) . ' (' . implode(',', $fields) . ') ' . $this->select($options);
|
|
|
return $sql;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 生成update SQL
|
|
|
* @access public
|
|
|
* @param array $data 数据
|
|
|
* @param array $options 表达式
|
|
|
* @return string
|
|
|
*/
|
|
|
public function update($data, $options)
|
|
|
{
|
|
|
$table = $this->parseTable($options['table'], $options);
|
|
|
$data = $this->parseData($data, $options);
|
|
|
if (empty($data)) {
|
|
|
return '';
|
|
|
}
|
|
|
foreach ($data as $key => $val) {
|
|
|
$set[] = $key . '=' . $val;
|
|
|
}
|
|
|
|
|
|
$sql = str_replace(
|
|
|
['%TABLE%', '%SET%', '%JOIN%', '%WHERE%', '%ORDER%', '%LIMIT%', '%LOCK%', '%COMMENT%'],
|
|
|
[
|
|
|
$this->parseTable($options['table'], $options),
|
|
|
implode(',', $set),
|
|
|
$this->parseJoin($options['join'], $options),
|
|
|
$this->parseWhere($options['where'], $options),
|
|
|
$this->parseOrder($options['order'], $options),
|
|
|
$this->parseLimit($options['limit']),
|
|
|
$this->parseLock($options['lock']),
|
|
|
$this->parseComment($options['comment']),
|
|
|
], $this->updateSql);
|
|
|
|
|
|
return $sql;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 生成delete SQL
|
|
|
* @access public
|
|
|
* @param array $options 表达式
|
|
|
* @return string
|
|
|
*/
|
|
|
public function delete($options)
|
|
|
{
|
|
|
$sql = str_replace(
|
|
|
['%TABLE%', '%USING%', '%JOIN%', '%WHERE%', '%ORDER%', '%LIMIT%', '%LOCK%', '%COMMENT%'],
|
|
|
[
|
|
|
$this->parseTable($options['table'], $options),
|
|
|
!empty($options['using']) ? ' USING ' . $this->parseTable($options['using'], $options) . ' ' : '',
|
|
|
$this->parseJoin($options['join'], $options),
|
|
|
$this->parseWhere($options['where'], $options),
|
|
|
$this->parseOrder($options['order'], $options),
|
|
|
$this->parseLimit($options['limit']),
|
|
|
$this->parseLock($options['lock']),
|
|
|
$this->parseComment($options['comment']),
|
|
|
], $this->deleteSql);
|
|
|
|
|
|
return $sql;
|
|
|
}
|
|
|
}
|
