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2019-09-06 23:53:10 +08:00
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126
thinkphp/library/think/db/connector/Mysql.php Executable file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2017 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;
use think\Log;
/**
* mysql数据库驱动
*/
class Mysql extends Connection
{
protected $builder = '\\think\\db\\builder\\Mysql';
/**
* 解析pdo连接的dsn信息
* @access protected
* @param array $config 连接信息
* @return string
*/
protected function parseDsn($config)
{
if (!empty($config['socket'])) {
$dsn = 'mysql:unix_socket=' . $config['socket'];
} elseif (!empty($config['hostport'])) {
$dsn = 'mysql:host=' . $config['hostname'] . ';port=' . $config['hostport'];
} else {
$dsn = 'mysql:host=' . $config['hostname'];
}
$dsn .= ';dbname=' . $config['database'];
if (!empty($config['charset'])) {
$dsn .= ';charset=' . $config['charset'];
}
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(' ', $tableName);
if (false === strpos($tableName, '`')) {
if (strpos($tableName, '.')) {
$tableName = str_replace('.', '`.`', $tableName);
}
$tableName = '`' . $tableName . '`';
}
$sql = 'SHOW COLUMNS FROM ' . $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']), // not null is empty, null is yes
'default' => $val['default'],
'primary' => (strtolower($val['key']) == 'pri'),
'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
];
}
}
return $this->fieldCase($info);
}
/**
* 取得数据库的表信息
* @access public
* @param string $dbName
* @return array
*/
public function getTables($dbName = '')
{
$sql = !empty($dbName) ? 'SHOW TABLES FROM ' . $dbName : 'SHOW TABLES ';
$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)
{
$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;
}
protected function supportSavepoint()
{
return true;
}
}

103
thinkphp/library/think/db/connector/Pgsql.php Executable file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2017 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';
/**
* 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;
}
}

104
thinkphp/library/think/db/connector/Sqlite.php Executable file
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2017 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;
/**
* Sqlite数据库驱动
*/
class Sqlite extends Connection
{
protected $builder = '\\think\\db\\builder\\Sqlite';
/**
* 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 = 'sqlite:' . $config['database'];
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 = 'PRAGMA table_info( ' . $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['name']] = [
'name' => $val['name'],
'type' => $val['type'],
'notnull' => 1 === $val['notnull'],
'default' => $val['dflt_value'],
'primary' => '1' == $val['pk'],
'autoinc' => '1' == $val['pk'],
];
}
}
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 name FROM sqlite_master WHERE type='table' "
. "UNION ALL SELECT name FROM sqlite_temp_master "
. "WHERE type='table' ORDER BY name";
$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;
}
}

122
thinkphp/library/think/db/connector/Sqlsrv.php Executable 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
{
// PDO连接参数
protected $params = [
PDO::ATTR_CASE => PDO::CASE_NATURAL,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_STRINGIFY_FETCHES => false,
];
protected $builder = '\\think\\db\\builder\\Sqlsrv';
/**
* 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 = '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
* @param string $tableName
* @return array
*/
public function getFields($tableName)
{
list($tableName) = explode(' ', $tableName);
$sql = "SELECT column_name, data_type, column_default, is_nullable
FROM information_schema.tables AS t
JOIN information_schema.columns AS c
ON t.table_catalog = c.table_catalog
AND t.table_schema = c.table_schema
AND t.table_name = c.table_name
WHERE t.table_name = '$tableName'";
$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['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,
];
}
}
$sql = "SELECT column_name FROM information_schema.key_column_usage WHERE table_name='$tableName'";
// 调试开始
$this->debug(true);
$pdo = $this->linkID->query($sql);
// 调试结束
$this->debug(false, $sql);
$result = $pdo->fetch(PDO::FETCH_ASSOC);
if ($result) {
$info[$result['column_name']]['primary'] = true;
}
return $this->fieldCase($info);
}
/**
* 取得数据表的字段信息
* @access public
* @param string $dbName
* @return array
*/
public function getTables($dbName = '')
{
$sql = "SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
";
$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 [];
}
}

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117
thinkphp/library/think/db/connector/pgsql.sql Executable file
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CREATE OR REPLACE FUNCTION pgsql_type(a_type varchar) RETURNS varchar AS
$BODY$
DECLARE
v_type varchar;
BEGIN
IF a_type='int8' THEN
v_type:='bigint';
ELSIF a_type='int4' THEN
v_type:='integer';
ELSIF a_type='int2' THEN
v_type:='smallint';
ELSIF a_type='bpchar' THEN
v_type:='char';
ELSE
v_type:=a_type;
END IF;
RETURN v_type;
END;
$BODY$
LANGUAGE PLPGSQL;
CREATE TYPE "public"."tablestruct" AS (
"fields_key_name" varchar(100),
"fields_name" VARCHAR(200),
"fields_type" VARCHAR(20),
"fields_length" BIGINT,
"fields_not_null" VARCHAR(10),
"fields_default" VARCHAR(500),
"fields_comment" VARCHAR(1000)
);
CREATE OR REPLACE FUNCTION "public"."table_msg" (a_schema_name varchar, a_table_name varchar) RETURNS SETOF "public"."tablestruct" AS
$body$
DECLARE
v_ret tablestruct;
v_oid oid;
v_sql varchar;
v_rec RECORD;
v_key varchar;
BEGIN
SELECT
pg_class.oid INTO v_oid
FROM
pg_class
INNER JOIN pg_namespace ON (pg_class.relnamespace = pg_namespace.oid AND lower(pg_namespace.nspname) = a_schema_name)
WHERE
pg_class.relname=a_table_name;
IF NOT FOUND THEN
RETURN;
END IF;
v_sql='
SELECT
pg_attribute.attname AS fields_name,
pg_attribute.attnum AS fields_index,
pgsql_type(pg_type.typname::varchar) AS fields_type,
pg_attribute.atttypmod-4 as fields_length,
CASE WHEN pg_attribute.attnotnull THEN ''not null''
ELSE ''''
END AS fields_not_null,
pg_attrdef.adsrc AS fields_default,
pg_description.description AS fields_comment
FROM
pg_attribute
INNER JOIN pg_class ON pg_attribute.attrelid = pg_class.oid
INNER JOIN pg_type ON pg_attribute.atttypid = pg_type.oid
LEFT OUTER JOIN pg_attrdef ON pg_attrdef.adrelid = pg_class.oid AND pg_attrdef.adnum = pg_attribute.attnum
LEFT OUTER JOIN pg_description ON pg_description.objoid = pg_class.oid AND pg_description.objsubid = pg_attribute.attnum
WHERE
pg_attribute.attnum > 0
AND attisdropped <> ''t''
AND pg_class.oid = ' || v_oid || '
ORDER BY pg_attribute.attnum' ;
FOR v_rec IN EXECUTE v_sql LOOP
v_ret.fields_name=v_rec.fields_name;
v_ret.fields_type=v_rec.fields_type;
IF v_rec.fields_length > 0 THEN
v_ret.fields_length:=v_rec.fields_length;
ELSE
v_ret.fields_length:=NULL;
END IF;
v_ret.fields_not_null=v_rec.fields_not_null;
v_ret.fields_default=v_rec.fields_default;
v_ret.fields_comment=v_rec.fields_comment;
SELECT constraint_name INTO v_key FROM information_schema.key_column_usage WHERE table_schema=a_schema_name AND table_name=a_table_name AND column_name=v_rec.fields_name;
IF FOUND THEN
v_ret.fields_key_name=v_key;
ELSE
v_ret.fields_key_name='';
END IF;
RETURN NEXT v_ret;
END LOOP;
RETURN ;
END;
$body$
LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
COMMENT ON FUNCTION "public"."table_msg"(a_schema_name varchar, a_table_name varchar)
IS '获得表信息';
---重载一个函数
CREATE OR REPLACE FUNCTION "public"."table_msg" (a_table_name varchar) RETURNS SETOF "public"."tablestruct" AS
$body$
DECLARE
v_ret tablestruct;
BEGIN
FOR v_ret IN SELECT * FROM table_msg('public',a_table_name) LOOP
RETURN NEXT v_ret;
END LOOP;
RETURN;
END;
$body$
LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
COMMENT ON FUNCTION "public"."table_msg"(a_table_name varchar)
IS '获得表信息';