117 lines
3.4 KiB
PHP
117 lines
3.4 KiB
PHP
|
<?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\connector;
|
||
|
|
|
||
|
|
use PDO;
|
||
|
|
use think\db\Connection;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Pgsql数据库驱动
|
||
|
|
*/
|
||
|
|
class Pgsql extends Connection
|
||
|
|
{
|
||
|
|
protected $builder = '\\think\\db\\builder\\Pgsql';
|
||
|
|
|
||
|
|
// PDO连接参数
|
||
|
|
protected $params = [
|
||
|
|
PDO::ATTR_CASE => PDO::CASE_NATURAL,
|
||
|
|
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
|
||
|
|
PDO::ATTR_ORACLE_NULLS => PDO::NULL_NATURAL,
|
||
|
|
PDO::ATTR_STRINGIFY_FETCHES => false,
|
||
|
|
];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 解析pdo连接的dsn信息
|
||
|
|
* @access protected
|
||
|
|
* @param array $config 连接信息
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function parseDsn($config)
|
||
|
|
{
|
||
|
|
$dsn = 'pgsql:dbname=' . $config['database'] . ';host=' . $config['hostname'];
|
||
|
|
|
||
|
|
if (!empty($config['hostport'])) {
|
||
|
|
$dsn .= ';port=' . $config['hostport'];
|
||
|
|
}
|
||
|
|
|
||
|
|
return $dsn;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 取得数据表的字段信息
|
||
|
|
* @access public
|
||
|
|
* @param string $tableName
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getFields($tableName)
|
||
|
|
{
|
||
|
|
list($tableName) = explode(' ', $tableName);
|
||
|
|
$sql = 'select fields_name as "field",fields_type as "type",fields_not_null as "null",fields_key_name as "key",fields_default as "default",fields_default as "extra" from table_msg(\'' . $tableName . '\');';
|
||
|
|
|
||
|
|
$pdo = $this->query($sql, [], false, true);
|
||
|
|
$result = $pdo->fetchAll(PDO::FETCH_ASSOC);
|
||
|
|
$info = [];
|
||
|
|
|
||
|
|
if ($result) {
|
||
|
|
foreach ($result as $key => $val) {
|
||
|
|
$val = array_change_key_case($val);
|
||
|
|
$info[$val['field']] = [
|
||
|
|
'name' => $val['field'],
|
||
|
|
'type' => $val['type'],
|
||
|
|
'notnull' => (bool) ('' !== $val['null']),
|
||
|
|
'default' => $val['default'],
|
||
|
|
'primary' => !empty($val['key']),
|
||
|
|
'autoinc' => (0 === strpos($val['extra'], 'nextval(')),
|
||
|
|
];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->fieldCase($info);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 取得数据库的表信息
|
||
|
|
* @access public
|
||
|
|
* @param string $dbName
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getTables($dbName = '')
|
||
|
|
{
|
||
|
|
$sql = "select tablename as Tables_in_test from pg_tables where schemaname ='public'";
|
||
|
|
$pdo = $this->query($sql, [], false, true);
|
||
|
|
$result = $pdo->fetchAll(PDO::FETCH_ASSOC);
|
||
|
|
$info = [];
|
||
|
|
|
||
|
|
foreach ($result as $key => $val) {
|
||
|
|
$info[$key] = current($val);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $info;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* SQL性能分析
|
||
|
|
* @access protected
|
||
|
|
* @param string $sql
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
protected function getExplain($sql)
|
||
|
|
{
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function supportSavepoint()
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|