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BaseBuilder.php
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BaseBuilder.php
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2023 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
declare(strict_types=1);
namespace think\db;
use Closure;
use think\db\BaseQuery as Query;
use think\db\exception\DbException as Exception;
/**
* Db Base Builder.
*/
abstract class BaseBuilder
{
/**
* Connection对象
*
* @var ConnectionInterface
*/
protected $connection;
/**
* 查询表达式映射.
*
* @var array
*/
protected $exp = ['NOTLIKE' => 'NOT LIKE', 'NOTIN' => 'NOT IN', 'NOTBETWEEN' => 'NOT BETWEEN', 'NOTEXISTS' => 'NOT EXISTS', 'NOTNULL' => 'NOT NULL', 'NOTBETWEEN TIME' => 'NOT BETWEEN TIME'];
/**
* 查询表达式解析.
*
* @var array
*/
protected $parser = [
'parseCompare' => ['=', '<>', '>', '>=', '<', '<='],
'parseLike' => ['LIKE', 'NOT LIKE'],
'parseBetween' => ['NOT BETWEEN', 'BETWEEN'],
'parseIn' => ['NOT IN', 'IN'],
'parseExp' => ['EXP'],
'parseNull' => ['NOT NULL', 'NULL'],
'parseBetweenTime' => ['BETWEEN TIME', 'NOT BETWEEN TIME'],
'parseTime' => ['< TIME', '> TIME', '<= TIME', '>= TIME'],
'parseExists' => ['NOT EXISTS', 'EXISTS'],
'parseColumn' => ['COLUMN'],
];
/**
* SELECT SQL表达式.
*
* @var string
*/
protected $selectSql = 'SELECT%DISTINCT%%EXTRA% %FIELD% FROM %TABLE%%FORCE%%JOIN%%WHERE%%GROUP%%HAVING%%UNION%%ORDER%%LIMIT% %LOCK%%COMMENT%';
/**
* INSERT SQL表达式.
*
* @var string
*/
protected $insertSql = '%INSERT%%EXTRA% INTO %TABLE% (%FIELD%) VALUES (%DATA%) %COMMENT%';
/**
* INSERT ALL SQL表达式.
*
* @var string
*/
protected $insertAllSql = '%INSERT%%EXTRA% INTO %TABLE% (%FIELD%) %DATA% %COMMENT%';
/**
* UPDATE SQL表达式.
*
* @var string
*/
protected $updateSql = 'UPDATE%EXTRA% %TABLE% SET %SET%%JOIN%%WHERE%%ORDER%%LIMIT% %LOCK%%COMMENT%';
/**
* DELETE SQL表达式.
*
* @var string
*/
protected $deleteSql = 'DELETE%EXTRA% FROM %TABLE%%USING%%JOIN%%WHERE%%ORDER%%LIMIT% %LOCK%%COMMENT%';
/**
* 架构函数.
*
* @param ConnectionInterface $connection 数据库连接对象实例
*/
public function __construct(ConnectionInterface $connection)
{
$this->connection = $connection;
}
/**
* 获取当前的连接对象实例.
*
* @return ConnectionInterface
*/
public function getConnection(): ConnectionInterface
{
return $this->connection;
}
/**
* 注册查询表达式解析.
*
* @param string $name 解析方法
* @param array $parser 匹配表达式数据
*
* @return $this
*/
public function bindParser(string $name, array $parser)
{
$this->parser[$name] = $parser;
return $this;
}
/**
* 数据分析.
*
* @param Query $query 查询对象
* @param array $data 数据
* @param array $fields 字段信息
* @param array $bind 参数绑定
*
* @return array
*/
abstract protected function parseData(Query $query, array $data = [], array $fields = [], array $bind = []): array;
/**
* 数据绑定处理.
*
* @param Query $query 查询对象
* @param string $key 字段名
* @param mixed $data 数据
* @param array $bind 绑定数据
*
* @return string
*/
abstract protected function parseDataBind(Query $query, string $key, $data, array $bind = []): string;
/**
* 字段名分析.
*
* @param Query $query 查询对象
* @param mixed $key 字段名
* @param bool $strict 严格检测
*
* @return string
*/
abstract public function parseKey(Query $query, string|int|Raw $key, bool $strict = false): string;
/**
* 查询额外参数分析.
*
* @param Query $query 查询对象
* @param string $extra 额外参数
*
* @return string
*/
abstract protected function parseExtra(Query $query, string $extra): string;
/**
* field分析.
*
* @param Query $query 查询对象
* @param array $fields 字段名
*
* @return string
*/
abstract protected function parseField(Query $query, array $fields): string;
/**
* table分析.
*
* @param Query $query 查询对象
* @param array|string $tables 表名
*
* @return string
*/
abstract protected function parseTable(Query $query, array|string $tables): string;
/**
* where分析.
*
* @param Query $query 查询对象
* @param array $where 查询条件
*
* @return string
*/
abstract protected function parseWhere(Query $query, array $where): string;
/**
* 生成查询条件SQL.
*
* @param Query $query 查询对象
* @param array $where 查询条件
*
* @return string
*/
public function buildWhere(Query $query, array $where): string
{
if (empty($where)) {
$where = [];
}
$whereStr = '';
$binds = $query->getFieldsBindType();
foreach ($where as $logic => $val) {
$str = $this->parseWhereLogic($query, $logic, $val, $binds);
$whereStr .= empty($whereStr) ? substr(implode(' ', $str), strlen($logic) + 1) : implode(' ', $str);
}
return $whereStr;
}
/**
* 不同字段使用相同查询条件(AND).
*
* @param Query $query 查询对象
* @param string $logic Logic
* @param array $val 查询条件
* @param array $binds 参数绑定
*
* @return array
*/
protected function parseWhereLogic(Query $query, string $logic, array $val, array $binds = []): array
{
$where = [];
foreach ($val as $value) {
if ($value instanceof Raw) {
$where[] = ' ' . $logic . ' ( ' . $this->parseRaw($query, $value) . ' )';
continue;
}
if (is_array($value)) {
if (key($value) !== 0) {
throw new Exception('where express error:' . var_export($value, true));
}
$field = array_shift($value);
} elseif (true === $value) {
$where[] = ' ' . $logic . ' 1 ';
continue;
} elseif (!($value instanceof Closure)) {
throw new Exception('where express error:' . var_export($value, true));
}
if ($value instanceof Closure) {
// 使用闭包查询
$whereClosureStr = $this->parseClosureWhere($query, $value, $logic);
if ($whereClosureStr) {
$where[] = $whereClosureStr;
}
} elseif (is_array($field)) {
$where[] = $this->parseMultiWhereField($query, $value, $field, $logic, $binds);
} elseif ($field instanceof Raw) {
$where[] = ' ' . $logic . ' ' . $this->parseWhereItem($query, $field, $value, $binds);
} elseif (str_contains($field, '|')) {
$where[] = $this->parseFieldsOr($query, $value, $field, $logic, $binds);
} elseif (str_contains($field, '&')) {
$where[] = $this->parseFieldsAnd($query, $value, $field, $logic, $binds);
} else {
// 对字段使用表达式查询
$field = is_string($field) ? $field : '';
$where[] = ' ' . $logic . ' ' . $this->parseWhereItem($query, $field, $value, $binds);
}
}
return $where;
}
/**
* 不同字段使用相同查询条件(AND).
*
* @param Query $query 查询对象
* @param mixed $value 查询条件
* @param string $field 查询字段
* @param string $logic Logic
* @param array $binds 参数绑定
*
* @return string
*/
protected function parseFieldsAnd(Query $query, $value, string $field, string $logic, array $binds): string
{
$item = [];
foreach (explode('&', $field) as $k) {
$item[] = $this->parseWhereItem($query, $k, $value, $binds);
}
return ' ' . $logic . ' ( ' . implode(' AND ', $item) . ' )';
}
/**
* 不同字段使用相同查询条件(OR).
*
* @param Query $query 查询对象
* @param array $value 查询条件
* @param string $field 查询字段
* @param string $logic Logic
* @param array $binds 参数绑定
*
* @return string
*/
protected function parseFieldsOr(Query $query, array $value, string $field, string $logic, array $binds): string
{
$item = [];
foreach (explode('|', $field) as $k) {
$item[] = $this->parseWhereItem($query, $k, $value, $binds);
}
return ' ' . $logic . ' ( ' . implode(' OR ', $item) . ' )';
}
/**
* 闭包查询.
*
* @param Query $query 查询对象
* @param Closure $value 查询条件
* @param string $logic Logic
*
* @return string
*/
protected function parseClosureWhere(Query $query, Closure $value, string $logic): string
{
$newQuery = $query->newQuery();
$value($newQuery);
$whereClosure = $this->buildWhere($newQuery, $newQuery->getOptions('where') ?: []);
if (!empty($whereClosure)) {
$query->bind($newQuery->getBind(false));
$where = ' ' . $logic . ' ( ' . $whereClosure . ' )';
}
return $where ?? '';
}
/**
* 复合条件查询.
*
* @param Query $query 查询对象
* @param mixed $value 查询条件
* @param mixed $field 查询字段
* @param string $logic Logic
* @param array $binds 参数绑定
*
* @return string
*/
protected function parseMultiWhereField(Query $query, array $value, $field, string $logic, array $binds): string
{
array_unshift($value, $field);
$where = [];
foreach ($value as $item) {
$where[] = $this->parseWhereItem($query, array_shift($item), $item, $binds);
}
return ' ' . $logic . ' ( ' . implode(' AND ', $where) . ' )';
}
/**
* where子单元分析.
*
* @param Query $query 查询对象
* @param mixed $field 查询字段
* @param array $val 查询条件
* @param array $binds 参数绑定
*
* @return string
*/
abstract protected function parseWhereItem(Query $query, $field, array $val, array $binds = []): string;
/**
* 模糊查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param array $value
* @param string $field
* @param int $bindType
* @param string $logic
*
* @return string
*/
abstract protected function parseLike(Query $query, string $key, string $exp, $value, $field, int $bindType, string $logic): string;
/**
* 表达式查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param Raw $value
* @param string $field
* @param int $bindType
*
* @return string
*/
protected function parseExp(Query $query, string $key, string $exp, Raw $value, string $field, int $bindType): string
{
// 表达式查询
return '( ' . $key . ' ' . $this->parseRaw($query, $value) . ' )';
}
/**
* 表达式查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param array $value
* @param string $field
* @param int $bindType
*
* @return string
*/
protected function parseColumn(Query $query, string $key, $exp, array $value, string $field, int $bindType): string
{
// 字段比较查询
[$op, $field] = $value;
if (!in_array(trim($op), ['=', '<>', '>', '>=', '<', '<='])) {
throw new Exception('where express error:' . var_export($value, true));
}
return '( ' . $key . ' ' . $op . ' ' . $this->parseKey($query, $field, true) . ' )';
}
/**
* Null查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param mixed $value
* @param string $field
* @param int $bindType
*
* @return string
*/
abstract protected function parseNull(Query $query, string $key, string $exp, $value, $field, int $bindType): string;
/**
* 范围查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param mixed $value
* @param string $field
* @param int $bindType
*
* @return string
*/
abstract protected function parseBetween(Query $query, string $key, string $exp, array|string $value, $field, int $bindType): string;
/**
* Exists查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param Raw|Closure $value
* @param string $field
* @param int $bindType
*
* @return string
*/
protected function parseExists(Query $query, string $key, string $exp, Raw|Closure $value, string $field, int $bindType): string
{
// EXISTS 查询
if ($value instanceof Closure) {
$value = $this->parseClosure($query, $value, false);
} elseif ($value instanceof Raw) {
$value = $this->parseRaw($query, $value);
}
return $exp . ' ( ' . $value . ' )';
}
/**
* 时间比较查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param mixed $value
* @param string $field
* @param int $bindType
*
* @return string
*/
protected function parseTime(Query $query, string $key, string $exp, $value, $field, int $bindType): string
{
return $key . ' ' . substr($exp, 0, 2) . ' ' . $this->parseDateTime($query, $value, $field, $bindType);
}
/**
* 大小比较查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param mixed $value
* @param string $field
* @param int $bindType
*
* @return string
*/
protected function parseCompare(Query $query, string $key, string $exp, $value, $field, int $bindType): string
{
if (is_array($value)) {
throw new Exception('where express error:' . $exp . var_export($value, true));
}
// 比较运算
if ($value instanceof Closure) {
$value = $this->parseClosure($query, $value);
} elseif ($value instanceof Raw) {
$value = $this->parseRaw($query, $value);
}
if ('=' == $exp && is_null($value)) {
return $key . ' IS NULL';
}
return $key . ' ' . $exp . ' ' . $value;
}
/**
* 时间范围查询.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param mixed $value
* @param string $field
* @param int $bindType
*
* @return string
*/
protected function parseBetweenTime(Query $query, string $key, string $exp, $value, $field, int $bindType): string
{
if (is_string($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.
*
* @param Query $query 查询对象
* @param string $key
* @param string $exp
* @param mixed $value
* @param string $field
* @param int $bindType
*
* @return string
*/
abstract protected function parseIn(Query $query, string $key, string $exp, $value, $field, int $bindType): string;
/**
* 闭包子查询.
*
* @param Query $query 查询对象
* @param Closure $call
* @param bool $show
*
* @return string
*/
protected function parseClosure(Query $query, Closure $call, bool $show = true): string
{
$newQuery = $query->newQuery()->removeOption();
$call($newQuery);
return $newQuery->buildSql($show);
}
/**
* 日期时间条件解析.
*
* @param Query $query 查询对象
* @param mixed $value
* @param string $key
* @param int $bindType
*
* @return string
*/
abstract protected function parseDateTime(Query $query, $value, string $key, int $bindType): string;
/**
* limit分析.
*
* @param Query $query 查询对象
* @param mixed $limit
*
* @return string
*/
abstract protected function parseLimit(Query $query, string $limit): string;
/**
* join分析.
*
* @param Query $query 查询对象
* @param array $join
*
* @return string
*/
abstract protected function parseJoin(Query $query, array $join): string;
/**
* order分析.
*
* @param Query $query 查询对象
* @param array $order
*
* @return string
*/
abstract protected function parseOrder(Query $query, array $order): string;
/**
* 分析Raw对象
*
* @param Query $query 查询对象
* @param Raw $raw Raw对象
*
* @return string
*/
abstract protected function parseRaw(Query $query, Raw $raw): string;
/**
* 随机排序.
*
* @param Query $query 查询对象
*
* @return string
*/
abstract protected function parseRand(Query $query): string;
/**
* group分析.
*
* @param Query $query 查询对象
* @param mixed $group
*
* @return string
*/
abstract protected function parseGroup(Query $query, string|array $group): string;
/**
* having分析.
*
* @param Query $query 查询对象
* @param string $having
*
* @return string
*/
abstract protected function parseHaving(Query $query, string $having): string;
/**
* comment分析.
*
* @param Query $query 查询对象
* @param string $comment
*
* @return string
*/
protected function parseComment(Query $query, string $comment): string
{
if (str_contains($comment, '*/')) {
$comment = strstr($comment, '*/', true);
}
return !empty($comment) ? ' /* ' . $comment . ' */' : '';
}
/**
* distinct分析.
*
* @param Query $query 查询对象
* @param mixed $distinct
*
* @return string
*/
abstract protected function parseDistinct(Query $query, bool $distinct): string;
/**
* union分析.
*
* @param Query $query 查询对象
* @param array $union
*
* @return string
*/
protected function parseUnion(Query $query, array $union): string
{
if (empty($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 . ' ( ' . $u . ' )';
}
}
return ' ' . implode(' ', $sql);
}
/**
* index分析,可在操作链中指定需要强制使用的索引.
*
* @param Query $query 查询对象
* @param mixed $index
*
* @return string
*/
abstract protected function parseForce(Query $query, string|array $index): string;
/**
* 设置锁机制.
*
* @param Query $query 查询对象
* @param bool|string $lock
*
* @return string
*/
abstract protected function parseLock(Query $query, bool|string $lock = false): string;
/**
* 生成查询SQL.
*
* @param Query $query 查询对象
* @param bool $one 是否仅获取一个记录
*
* @return string
*/
public function select(Query $query, bool $one = false): string
{
$options = $query->getOptions();
return str_replace(
['%TABLE%', '%DISTINCT%', '%EXTRA%', '%FIELD%', '%JOIN%', '%WHERE%', '%GROUP%', '%HAVING%', '%ORDER%', '%LIMIT%', '%UNION%', '%LOCK%', '%COMMENT%', '%FORCE%'],
[
$this->parseTable($query, $options['table']),
$this->parseDistinct($query, $options['distinct']),
$this->parseExtra($query, $options['extra']),
$this->parseField($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, $one ? '1' : $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.
*
* @param Query $query 查询对象
*
* @return string
*/
public function insert(Query $query): string
{
$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%', '%EXTRA%', '%FIELD%', '%DATA%', '%COMMENT%'],
[
!empty($options['replace']) ? 'REPLACE' : 'INSERT',
$this->parseTable($query, $options['table']),
$this->parseExtra($query, $options['extra']),
implode(' , ', $fields),
implode(' , ', $values),
$this->parseComment($query, $options['comment']),
],
$this->insertSql
);
}
/**
* 生成insertall SQL.
*
* @param Query $query 查询对象
* @param array $dataSet 数据集
*
* @return string
*/
public function insertAll(Query $query, array $dataSet): string
{
$options = $query->getOptions();
// 获取绑定信息
$bind = $query->getFieldsBindType();
// 获取合法的字段
if (empty($options['field']) || '*' == $options['field']) {
$allowFields = array_keys($bind);
} else {
$allowFields = $options['field'];
}
$fields = [];
$values = [];
foreach ($dataSet as $k => $data) {
$data = $this->parseData($query, $data, $allowFields, $bind);
$values[] = 'SELECT ' . implode(',', array_values($data));
if (!isset($insertFields)) {
$insertFields = array_keys($data);
}
}
foreach ($insertFields as $field) {
$fields[] = $this->parseKey($query, $field);
}
return str_replace(
['%INSERT%', '%TABLE%', '%EXTRA%', '%FIELD%', '%DATA%', '%COMMENT%'],
[
!empty($options['replace']) ? 'REPLACE' : 'INSERT',
$this->parseTable($query, $options['table']),
$this->parseExtra($query, $options['extra']),
implode(' , ', $fields),
implode(' UNION ALL ', $values),
$this->parseComment($query, $options['comment']),
],
$this->insertAllSql
);
}
/**
* 生成slect insert SQL.
*
* @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, array $fields, string $table): string
{
foreach ($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.
*
* @param Query $query 查询对象
*
* @return string
*/
public function update(Query $query): string
{
$options = $query->getOptions();
$data = $this->parseData($query, $options['data']);
if (empty($data)) {
return '';
}
$set = [];
foreach ($data as $key => $val) {
$set[] = $key . ' = ' . $val;
}
return str_replace(
['%TABLE%', '%EXTRA%', '%SET%', '%JOIN%', '%WHERE%', '%ORDER%', '%LIMIT%', '%LOCK%', '%COMMENT%'],
[
$this->parseTable($query, $options['table']),
$this->parseExtra($query, $options['extra']),
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.
*
* @param Query $query 查询对象
*
* @return string
*/
public function delete(Query $query): string
{
$options = $query->getOptions();
return str_replace(
['%TABLE%', '%EXTRA%', '%USING%', '%JOIN%', '%WHERE%', '%ORDER%', '%LIMIT%', '%LOCK%', '%COMMENT%'],
[
$this->parseTable($query, $options['table']),
$this->parseExtra($query, $options['extra']),
!empty($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
);
}
}