Mysql.php
4.7 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace think\db\builder;
use think\db\Builder;
use think\Exception;
/**
* mysql数据库驱动
*/
class Mysql extends Builder
{
protected $insertAllSql = '%INSERT% INTO %TABLE% (%FIELD%) VALUES %DATA% %COMMENT%';
protected $updateSql = 'UPDATE %TABLE% %JOIN% SET %SET% %WHERE% %ORDER%%LIMIT% %LOCK%%COMMENT%';
/**
* 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[] = '( ' . implode(',', $value) . ' )';
if (!isset($insertFields)) {
$insertFields = array_map([$this, 'parseKey'], array_keys($data));
}
}
return str_replace(
['%INSERT%', '%TABLE%', '%FIELD%', '%DATA%', '%COMMENT%'],
[
$replace ? 'REPLACE' : 'INSERT',
$this->parseTable($options['table'], $options),
implode(' , ', $insertFields),
implode(' , ', $values),
$this->parseComment($options['comment']),
], $this->insertAllSql);
}
/**
* 字段和表名处理
* @access protected
* @param mixed $key
* @param array $options
* @return string
*/
protected function parseKey($key, $options = [], $strict = false)
{
if (is_numeric($key)) {
return $key;
} elseif ($key instanceof Expression) {
return $key->getValue();
}
$key = trim($key);
if (strpos($key, '$.') && false === strpos($key, '(')) {
// JSON字段支持
list($field, $name) = explode('$.', $key);
return 'json_extract(' . $field . ', \'$.' . $name . '\')';
} elseif (strpos($key, '.') && !preg_match('/[,\'\"\(\)`\s]/', $key)) {
list($table, $key) = explode('.', $key, 2);
if ('__TABLE__' == $table) {
$table = $this->query->getTable();
}
if (isset($options['alias'][$table])) {
$table = $options['alias'][$table];
}
}
if ($strict && !preg_match('/^[\w\.\*]+$/', $key)) {
throw new Exception('not support data:' . $key);
}
if ('*' != $key && ($strict || !preg_match('/[,\'\"\*\(\)`.\s]/', $key))) {
$key = '`' . $key . '`';
}
if (isset($table)) {
if (strpos($table, '.')) {
$table = str_replace('.', '`.`', $table);
}
$key = '`' . $table . '`.' . $key;
}
return $key;
}
/**
* 随机排序
* @access protected
* @return string
*/
protected function parseRand()
{
return 'rand()';
}
}