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数据库重构

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This commit is contained in:
thinkphp
2016-04-16 11:18:35 +08:00
parent a20a307e0a
commit 6886c03657
19 changed files with 3014 additions and 2801 deletions
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110
library/think/db/connector/Mysql.php Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2016 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 think\db\Connection;
use think\Log;
/**
* mysql数据库驱动
*/
class Mysql extends Connection
{
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config)
{
$dsn = 'mysql:dbname=' . $config['database'] . ';host=' . $config['hostname'];
if (!empty($config['hostport'])) {
$dsn .= ';port=' . $config['hostport'];
} elseif (!empty($config['socket'])) {
$dsn .= ';unix_socket=' . $config['socket'];
}
if (!empty($config['charset'])) {
$dsn .= ';charset=' . $config['charset'];
}
return $dsn;
}
/**
* 取得数据表的字段信息
* @access public
* @param $tableName
* @return array
*/
public function getFields($tableName)
{
$this->initConnect(true);
list($tableName) = explode(' ', $tableName);
if (strpos($tableName, '.')) {
$tableName = str_replace('.', '`.`', $tableName);
}
$sql = 'SHOW COLUMNS FROM `' . $tableName . '`';
$result = $this->query($sql);
$info = [];
if ($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']), // not null is empty, null is yes
'default' => $val['default'],
'primary' => (strtolower($val['key']) == 'pri'),
'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
];
}
}
return $info;
}
/**
* 取得数据库的表信息
* @access public
* @param string $dbName
* @return array
*/
public function getTables($dbName = '')
{
$sql = !empty($dbName) ? 'SHOW TABLES FROM ' . $dbName : 'SHOW TABLES ';
$result = $this->query($sql);
$info = [];
foreach ($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)
{
$pdo = $this->linkID->query("EXPLAIN " . $sql);
$result = $pdo->fetch(\PDO::FETCH_ASSOC);
$result = array_change_key_case($result);
if (isset($result['extra'])) {
if (strpos($result['extra'], 'filesort') || strpos($result['extra'], 'temporary')) {
Log::record('SQL:' . $this->queryStr . '[' . $result['extra'] . ']', 'warn');
}
}
return $result;
}
}

152
library/think/db/connector/Oracle.php Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2016 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 think\Db;
use think\db\Connection;
/**
* Oracle数据库驱动
*/
class Oracle extends Connection
{
private $table = '';
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config)
{
$dsn = 'oci:dbname=';
if (!empty($config['hostname'])) {
// Oracle Instant Client
$dsn .= '//' . $config['hostname'] . ($config['hostport'] ? ':' . $config['hostport'] : '') . '/';
}
$dsn .= $config['database'];
if (!empty($config['charset'])) {
$dsn .= ';charset=' . $config['charset'];
}
return $dsn;
}
/**
* 执行语句
* @access public
* @param string $sql sql指令
* @param array $bind 参数绑定
* @param boolean $fetch 不执行只是获取SQL
* @return integer
* @throws \Exception
* @throws \think\Exception
*/
public function execute($sql, $bind = [], $fetch = false)
{
$this->initConnect(true);
if (!$this->linkID) {
return false;
}
// 根据参数绑定组装最终的SQL语句
$this->queryStr = $this->getBindSql($sql, $bind);
if ($fetch) {
return $this->queryStr;
}
$flag = false;
if (preg_match("/^\s*(INSERT\s+INTO)\s+(\w+)\s+/i", $sql, $match)) {
$this->table = Config::get("db_sequence_prefix") . str_ireplace(Config::get("database.prefix"), "", $match[2]);
$flag = (boolean) $this->query("SELECT * FROM all_sequences WHERE sequence_name='" . strtoupper($this->table) . "'");
}
//释放前次的查询结果
if (!empty($this->PDOStatement)) {
$this->free();
}
Db::$executeTimes++;
try {
// 记录开始执行时间
$this->debug(true);
$this->PDOStatement = $this->linkID->prepare($sql);
// 参数绑定操作
$this->bindValue($bind);
$result = $this->PDOStatement->execute();
$this->debug(false);
$this->numRows = $this->PDOStatement->rowCount();
if ($flag || preg_match("/^\s*(INSERT\s+INTO|REPLACE\s+INTO)\s+/i", $sql)) {
$this->lastInsID = $this->linkID->lastInsertId();
}
return $this->numRows;
} catch (\PDOException $e) {
throw new \think\Exception($this->getError());
}
}
/**
* 取得数据表的字段信息
* @access public
*
* @param $tableName
*
* @return array
*/
public function getFields($tableName)
{
list($tableName) = explode(' ', $tableName);
$url = "select a.column_name,data_type,DECODE (nullable, 'Y', 0, 1) notnull,data_default, DECODE (A .column_name,b.column_name,1,0) pk from all_tab_columns a,(select column_name from all_constraints c, all_cons_columns col where c.constraint_name = col.constraint_name and c.constraint_type = 'P' and c.table_name = '" . strtoupper($tableName) . "' ) b where table_name = '" . strtoupper($tableName) . "' and a.column_name = b.column_name (+)";
$result = $this->query($url);
$info = [];
if ($result) {
foreach ($result as $key => $val) {
$val = array_change_key_case($val);
$info[$val['column_name']] = [
'name' => $val['column_name'],
'type' => $val['data_type'],
'notnull' => $val['notnull'],
'default' => $val['data_default'],
'primary' => $val['pk'],
'autoinc' => $val['pk'],
];
}
}
return $info;
}
/**
* 取得数据库的表信息（暂时实现取得用户表信息）
* @access public
* @return array
* @internal param string $dbName
*/
public function getTables()
{
$result = $this->query("select table_name from all_tables");
$info = [];
foreach ($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 [];
}
}

87
library/think/db/connector/Pgsql.php Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2016 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 think\db\Connection;
/**
* Pgsql数据库驱动
*/
class Pgsql extends Connection
{
/**
* 解析pdo连接的dsn信息
* @access public
* @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 $dsn;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getFields($tableName)
{
list($tableName) = explode(' ', $tableName);
$result = $this->query('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 . ');');
$info = [];
if ($result) {
foreach ($result as $key => $val) {
$info[$val['field']] = [
'name' => $val['field'],
'type' => $val['type'],
'notnull' => (bool) ('' === $val['null']), // not null is empty, null is yes
'default' => $val['default'],
'primary' => (strtolower($val['key']) == 'pri'),
'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
];
}
}
return $info;
}
/**
* 取得数据库的表信息
* @access public
* @return array
*/
public function getTables($dbName = '')
{
$result = $this->query("select tablename as Tables_in_test from pg_tables where schemaname ='public'");
$info = [];
foreach ($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 [];
}
}

86
library/think/db/connector/Sqlite.php Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2016 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 think\db\Connection;
/**
* Sqlite数据库驱动
*/
class Sqlite extends Connection
{
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config)
{
$dsn = 'sqlite:' . $config['database'];
return $dsn;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getFields($tableName)
{
list($tableName) = explode(' ', $tableName);
$result = $this->query('PRAGMA table_info( ' . $tableName . ' )');
$info = [];
if ($result) {
foreach ($result as $key => $val) {
$info[$val['name']] = [
'name' => $val['name'],
'type' => $val['type'],
'notnull' => 1 === $val['notnull'],
'default' => $val['dflt_value'],
'primary' => '1' == $val['pk'],
'autoinc' => '1' == $val['pk'],
];
}
}
return $info;
}
/**
* 取得数据库的表信息
* @access public
* @return array
*/
public function getTables($dbName = '')
{
$result = $this->query("SELECT name FROM sqlite_master WHERE type='table' "
. "UNION ALL SELECT name FROM sqlite_temp_master "
. "WHERE type='table' ORDER BY name");
$info = [];
foreach ($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 [];
}
}

105
library/think/db/connector/Sqlsrv.php Normal file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 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;
/**
* Sqlsrv数据库驱动
*/
class Sqlsrv extends Connection
{
protected $selectSql = 'SELECT T1.* FROM (SELECT thinkphp.*, ROW_NUMBER() OVER (%ORDER%) AS ROW_NUMBER FROM (SELECT %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%) AS thinkphp) AS T1 %LIMIT%%COMMENT%';
// PDO连接参数
protected $options = [
PDO::ATTR_CASE => PDO::CASE_LOWER,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_STRINGIFY_FETCHES => false,
PDO::SQLSRV_ATTR_ENCODING => PDO::SQLSRV_ENCODING_UTF8,
];
/**
* 解析pdo连接的dsn信息
* @access public
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config)
{
$dsn = 'sqlsrv:Database=' . $config['database'] . ';Server=' . $config['hostname'];
if (!empty($config['hostport'])) {
$dsn .= ',' . $config['hostport'];
}
return $dsn;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getFields($tableName)
{
list($tableName) = explode(' ', $tableName);
$result = $this->query("SELECT column_name, data_type, column_default, is_nullable
FROM information_schema.tables AS t
JOIN information_schema.columns AS c
ON t.table_catalog = c.table_catalog
AND t.table_schema = c.table_schema
AND t.table_name = c.table_name
WHERE t.table_name = '$tableName'");
$info = [];
if ($result) {
foreach ($result as $key => $val) {
$info[$val['column_name']] = [
'name' => $val['column_name'],
'type' => $val['data_type'],
'notnull' => (bool) ('' === $val['is_nullable']), // not null is empty, null is yes
'default' => $val['column_default'],
'primary' => false,
'autoinc' => false,
];
}
}
return $info;
}
/**
* 取得数据表的字段信息
* @access public
* @return array
*/
public function getTables($dbName = '')
{
$result = $this->query("SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
");
$info = [];
foreach ($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 [];
}
}