DbBak2Sql::__construct() - Code Metrics - fwolf/fwlib - Measure and Improve Code Quality continuously with Scrutinizer

DbBak2Sql::__construct() A
last analyzed 2019-05-09 15:53 UTC

↳ Parent: DbBak2Sql

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
nc	2
nop	1
dl	0
loc	5
rs	10
c	0
b	0
f	0

<?php
/**
* @package      fwolflib
* @copyright    Copyright 2006, Fwolf
* @author       Fwolf <[email protected]>
*/


require_once(dirname(__FILE__) . '/fwolflib.php');
require_once('adodb/adodb.inc.php');


/**
* Data backup tool, result is sql format.
* Test under sybase 11.92 ok.
*
* @deprecated   Use Fwlib\Db\DbDataExport
* @package    fwolflib
* @copyright  Copyright 2006, Fwolf
* @author     Fwolf <[email protected]>
* @since      2006-11-14
* @access     public
* @version    $Id$
*/
class DbBak2Sql extends Fwolflib {

	/**
	 * Charset of database
	 * If charset of db diff from os, do convert when execute sql.
	 * @var	string
	 * @access	public
	 */
	var $mCharsetDb = '';

	/**
	 * Charset of operation system
	 * @var string
	 * @access	public
	 * @see	$mCharsetDb
	 */
	var $mCharsetOs = '';

	/**
	 * Db connection object
	 * @var object
	 * @access	private
	 */
	var $mDb;

	/**
	 * Ignore columns
	 * These columns will not be trans to sql when processed.
	 * @var	array
	 * @access	public
	 */
	var $mIgnoreColumn = array('lasttime');

	/**
	 * Log file
	 * Log file to write, this is only filename, path is $this->mTargetPath
	 * @var	string
	 * @access	public
	 * @see	$mTargetPath
	 */
	var $mLogFile = 'dbbak2sql.log';

	/**
	 * Db server information array
	 * 	Array item: host, user, pass, name, type.
	 * @var	array
	 * @access	private
	 */
	var $mServer = array();

	/**
	 * Summary text
	 * @var string
	 * @access public
	 */
	var $mSummary = '';

	/**
	 * Tables will be backup
	 * Include needed, exclude no needed, this is result.
	 * @var	array
	 * @access	private
	 */
	var $mTable = array();

	/**
	 * Tables to be exclude from backup task
	 * @var array
	 * @access	private
	 */
	var $mTableExclude = array();

	/**
	 * Table need to be group by some cols when backup
	 * Usually used when table contains too much rows
	 * @var	array
	 * @access	private
	 */
	var $mTableGroupby = array();

	/**
	 * Tables to be include in backup task
	 * If not empty, will only backup tables in this list.
	 * @var array
	 * @access	private
	 */
	var $mTableInclude = array();

	/**
	 * Where to save exported sql files.
	 * @var	string
	 * @access	private
	 */
	var $mTargetPath = '/tmp/dbbak2sql';


	/**
	 * Construct function
	 * @access public
	 * @param	array	$server	Db server information
	 */
	function __construct($server=array())

	{
		if (!empty($server))
			$this->SetDatabase($server);
	} // end of func __construct


	/**
	 * Do backup to database
	 * @access	public
	 */
	public function Bak()
	{
		file_put_contents($this->mTargetPath . '/' . $this->mLogFile, '');
		$this->GetTableList();
		foreach ($this->mTable as $tbl)
			$this->BakTable($tbl);
		$this->Summary();
	} // end of func Bak


	/**
	 * Do backup to a single table
	 * @access	private
	 * @param	string	$tbl Table name
	 */
	private function BakTable($tbl)
	{
		// Clear sql file(sql is save to seperated file, not need clear anymore
		//file_put_contents($this->mTargetPath . "/$tbl.sql", '');
		$this->Log("Begin to backup $tbl, ");

		$cols = $this->GetTblFields($tbl);

		// Split sql to 10000 rows per step
		$sql_step = 10000;
		$sql_offset = 0;
		// Rows and Byte count
		$done_rows = 0;
		$done_bytes = 0;

		// Get total rows
		$sql = "select count(1) as c from $tbl";
		$rs = $this->mDb->Execute($sql);
		$rowcount = $rs->fields['c'];
		$this->Log("Got $rowcount rows: ");

		// Write rs to sql
		// GetInsertSQL failed for unknown reason, manual generate sql
		//$sql = $this->mDb->GetInsertSQL($rs, $cols, false, false);
		$bakfile = $this->mTargetPath . "/$tbl.sql";
		$sql = "truncate table $tbl;\n";
		if (true == $this->NeedIdentityInsert())

			$sql .= "set identity_insert $tbl on;\n";

		// Backup by groupby will cause two situation:
		// 1. one sql file will contain rows diffs with sql_step.
		// 2. sql file saved's number sometimes is not continued.

		// Groupby rules is converted to where clauses
		$ar_where = $this->GroupbyRule2WhereSql($tbl);
		while ($sql_offset < $rowcount)
		{
			$this->Log(".");
			// Execute sql
			// When ar_where is empty, the loop should be end.
			// Or groupby is not used.
			if (!empty($ar_where))
			{
				$s_where = array_shift($ar_where);
				$sql_select = "select * from $tbl $s_where";
				$rs = $this->mDb->Execute($sql_select);
			}
			else
			{
				$sql_select = "select * from $tbl";
				// This select sql does not need iconv
				//if ($this->mCharsetDb != $this->mCharsetOs)
				//	$sql = mb_convert_encoding($sql, $this->mCharsetDb, $this->mCharsetOs);
				$rs = $this->mDb->SelectLimit($sql_select, $sql_step, $sql_offset);
			}
			$rs_rows = $rs->RecordCount();
			if (0 != $this->mDb->ErrorNo())
				$this->Log("\n" . $db->ErrorMsg() . "\n");

			else
			{
				$sql .= $this->Rs2Sql($rs, $tbl, $cols);
				$done_rows += $rs_rows;
			}

			// Save this step to file
			if ($this->mCharsetDb != $this->mCharsetOs)
				$sql = mb_convert_encoding($sql, $this->mCharsetOs, $this->mCharsetDb);
			// Save to seperated file, first check about how many files will be used.
			if ($rowcount > $sql_step)
			{
				$i = strlen(strval(ceil($rowcount / $sql_step)));
				$s = substr(str_repeat('0', $i) . strval(floor($sql_offset / $sql_step)), $i * -1) . '.';
			}
			else
				$s = '';
			$bakfile = $this->mTargetPath . "/$tbl.${s}sql";
			file_put_contents($bakfile, $sql, FILE_APPEND);
			// Prepare for loop
			$done_bytes += strlen($sql);
			unset($sql);
			$sql = '';
			//$sql_offset += $sql_step;
			$sql_offset += $rs_rows;
			unset($rs);
		}

		// End sql, the last one.
		if (true == $this->NeedIdentityInsert())

			$sql .= "set identity_insert $tbl off;\n";
		file_put_contents($bakfile, $sql, FILE_APPEND);

		$this->Log("Saved $done_rows rows, Total size: $done_bytes bytes.\n");

	} // end of func BakTable


	/**
	 * 获得数据库连接
	 * @access	private
	 * @param	array	$server
	 * @return object
	 */
	private function &DbConn($server)
	{
		global $ADODB_FETCH_MODE;

		//ADODB设定
		$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;

		try
		{
			$conn = &ADONewConnection($server['type']);
			//$conn->debug = true;
			$conn->Connect($server['host'],
				$server['user'],
				$server['pass'],
				$server['name']);
			//针对mysql 4.1以上，UTF8编码的数据库，需要在连接后指定编码
			//$conn->Execute('set names "utf8"');
			if ('mysql' == $server['type']) $conn->Execute('set names "utf8"');
		}
		catch (Exception $e)
		{
			//var_dump($e);
			adodb_backtrace($e->getTrace());
			//echo $e;
			exit();
		}
		return $conn;
	} // end of func DbConn


	/**
	 * Retrieve table list from db
	 * @access	private
	 */
	private function GetTableList()
	{
		if (!empty($this->mTableInclude))
			$this->mTable = $this->mTableInclude;
		else
			// Adodb 4.65 can't read sysbase table list currect,
			// Replaced it with 4.93a, it's fine.
			$this->mTable = $this->mDb->MetaTables('TABLES');

		// Compute exclude
		foreach ($this->mTableExclude as $tbl)
		{
			$idx = array_search($tbl, $this->mTable);
			if (!(false === $idx))
				unset($this->mTable[$idx]);
		}

		// Write Log
		$this->Log("Ready for backup " . count($this->mTable) . " tables.\n");
	} // end of func GetTableList


	/**
	 * Get fields of a table, ignore prefered fields
	 * @access	private
	 * @param	string	$tbl
	 * @return	array
	 */
	private function GetTblFields($tbl)
	{
		$rs_cols = $this->mDb->MetaColumns($tbl, false);
		//print_r($rs_cols);
		$cols = array();
		if (!empty($rs_cols))
			foreach ($rs_cols as $c)
			{
				// Ignore some columns ?(timestamp)
				if (false == in_array($c->name, $this->mIgnoreColumn))

					array_push($cols, $c->name);
			}
		return $cols;
	} // end of func GetTblFields


	/**
	 * Convert groupby rules to where sql clauses
	 * Retrieve data from db by groupby rules, and convert to where sql.
	 * Used when backup, where clauses can used directly in select sql
	 * @access	private
	 * @param	string	$tbl
	 * @return	array
	 */
	private function GroupbyRule2WhereSql($tbl)
	{
		$ar_where = array();
		if (!empty($this->mTableGroupby[$tbl]))
		{
			$groupby = $this->mTableGroupby[$tbl];
			$sql = "select distinct $groupby from $tbl";
			$rs = $this->mDb->Execute($sql);

			// Convert every rows to where sql
			$cols = explode(',', $groupby);
			$rs_cols = $this->mDb->MetaColumns($tbl, false);
			while (!empty($rs) && !$rs->EOF && !empty($cols))
			{
				$sql = ' WHERE 1=1 ';
				foreach ($cols as $c)

				{
					$val = $this->ParseSqlData($rs->fields[$c], $rs_cols[strtoupper($c)]->type);
					$sql .= " and $c=$val ";
				}
				array_push($ar_where, $sql);
				$rs->MoveNext();
			}
		}
		return $ar_where;
	} // end of function GroupbyRule2WhereSql


	/**
	 * Save log
	 * Both log file and summary text is saved to.
	 * @access	private
	 * @param	string	$log
	 */
	public function Log ($log) {
		$logfile = $this->mTargetPath . '/'  . $this->mLogFile;
		file_put_contents($logfile, $log, FILE_APPEND);
		echo $log;
		$this->mSummary .= $log;
	} // end of func Log


	/**
	 * Determin if current db driver need set identity_insert tbl on/off
	 * @access	private
	 * @return	boolean
	 */
	private function NeedIdentityInsert()
	{
		$ar_need = array('mssql', 'sybase', 'sybase_ase');
		if (true == in_array($this->mServer['type'], $ar_need))

			return true;
		else
			return false;
	} // end of func NeedIdentityInsert


	/**
	 * Parse sql text used in sql value field
	 * @access	private
	 * @param	string	$val
	 * @param	string	$type
	 * @return	string
	 */
	private function ParseSqlData($val, $type)
	{
		// First, ' -> '' in sybase
		//if (true == in_array($this->mServer['type'], array('sybase', 'sybase_ase')))
		//	$val = str_replace("'", "''", $val);
		// Quote fields of char
		$varchar = array('char', 'charn', 'text', 'varchar', 'varchar2', 'varcharn');
		if (true == in_array($type, $varchar))

			$val = '"' . addslashes($val) . '"';

		// Datetime field
		$datestyle = array('date', 'daten', 'datetime', 'datetimn');
		if (in_array($type, $datestyle))
			if (empty($val))
				$val = 'null';
			else
				$val = '"' . $val . '"';

		// If a numeric field is null
		if (!in_array($type, $varchar) && !in_array($type, $datestyle) && is_null($val))
			$val = 'null';

		return $val;
	} // end of func ParseSqlData


	/**
	 * Convert ADOdb recordset to sql text
	 * @access	private
	 * @param	object	$rs
	 * @param	string	$tbl
	 * @param	array	$cols
	 * @return	string
	 */
	private function Rs2Sql(&$rs, $tbl, $cols=array())
	{
		if (empty($rs) || $rs->EOF)
			return '';
		else
			{
				$sql = '';
				if (empty($cols))
					$cols = $this->GetTblFields($tbl);
				$rs_cols = $this->mDb->MetaColumns($tbl, false);

				while (!$rs->EOF)
				{
					// Insert sql begin
					$sql_i = "INSERT INTO $tbl (" . implode(',', $cols) . " ) VALUES ( \n";
					// Fields data
					$ar = array();
					foreach ($cols as $c)

					{
						$val = $rs->fields[$c];
						$type = $rs_cols[strtoupper($c)]->type;
						array_push($ar, $this->ParseSqlData($val, $type));
					}
					$sql_i .= implode(',', $ar) . "\n";
					// Insert sql end
					$sql_i .= ");\n";
					$sql .= $sql_i;
					// Move cursor
					$rs->MoveNext();
				}
			}
		return $sql;
	} // end of func Rs2Sql


	/**
	 * Accept database information from outside class
	 *	Didnot validate data send in.
	 *	And connect to db after store infomation.
	 * @access	public
	 * @var	array	$server	array items: host, user, pass, name, type
	 */
	public function SetDatabase($server)

	{
		if (!empty($server) && is_array($server))
		{
			$this->mServer = $server;
			$this->mDb = $this->DbConn($this->mServer);
		}
	} // end of func SetDatabase


	/**
	 * Set tables will not be backup
	 * @access public
	 * @var	array	$ar
	 */
	public function SetTableExclude($ar)
	{
		if (!empty($ar) and is_array($ar))
		{
			$this->mTableExclude = $ar;
		}
	} // end of func SetTableExclude


	/**
	 * Set table group by rules when backup-select
	 * If given cols is empty, it will remove tbl from list need-to-be groupby.
	 * Multi cols can be assigned split by ','.
	 * @access	public
	 * @var	string	$tbl
	 * @var	string	$cols
	 */
	public function SetTableGroupby($tbl, $cols)
	{
		if (empty($cols))
			unset($this->mTableGroupby[$tbl]);
		else
			$this->mTableGroupby[$tbl] = $cols;
	} // end of func SetTableGroupby


	/**
	 * Set tables will only be backup
	 * @access public
	 * @var	array	$ar
	 */
	public function SetTableInclude($ar)
	{
		if (!empty($ar) and is_array($ar))
		{
			$this->mTableInclude = $ar;
		}
	} // end of func SetTableInclude


	/**
	 * Set where to save sql files exported.
	 * If directory doesn't exists, create it.
	 * @access	public
	 * @var	string	$path
	 */
	public function SetTargetPath($path)
	{
		$this->mTargetPath = $path;
		// Check and create
		if (file_exists($path) && !is_dir($path))
			die("Target path is a file.");
		elseif (!file_exists($path))
			mkdir($path, 0700, true);	// Do path end with '/' needed ?
	} // end of func SetTargetPath

	/**
	 * Print or write summary text of the whole backup process
	 * @access	private
	 */
	private function Summary()
	{
		echo $this->mSummary . "\n";
	} // end of func Summary


} // end of class DbBak2Sql
/*
$db = DbConn();

//打印各市地区编码
$sql[2] = 'select substring(bm, 1, 4), mc from dqk where bm like "%00"';

$sql = $sql[4];
$sql = mb_convert_encoding($sql, 'gbk', 'utf8');
$rs = $db->Execute($sql);
if (0 != $db->ErrorNo())
	echo $db->ErrorMsg();
$s = '';
$ar = $rs->GetArray();

//输出方式一，直接print
//$s = print_r($ar, true);
//输出方式二，tab间隔，便于导入
foreach ($ar as $key=>$row)
{
	foreach ($row as $var)
		$s .= "$var\t";
	$s .= "\n";
}

$s = mb_convert_encoding($s, 'utf8', 'gbk');
echo $s;
*/
?>



1		<?php
2		/**
3		* @package fwolflib
4		* @copyright Copyright 2006, Fwolf
5		* @author Fwolf <[email protected]>
6		*/
7
8
9		require_once(dirname(__FILE__) . '/fwolflib.php');
10		require_once('adodb/adodb.inc.php');
11
12
13		/**
14		* Data backup tool, result is sql format.
15		* Test under sybase 11.92 ok.
16		*
17		* @deprecated Use Fwlib\Db\DbDataExport
18		* @package fwolflib
19		* @copyright Copyright 2006, Fwolf
20		* @author Fwolf <[email protected]>
21		* @since 2006-11-14
22		* @access public
23		* @version $Id$
24		*/
25		class DbBak2Sql extends Fwolflib {
		0 ignored issues – show Deprecated Code introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report The class `Fwolflib` has been deprecated with message: Use classes in Fwlib namespace, see PSR-0/1/2 This class, trait or interface has been deprecated. The supplier of the file has supplied an explanatory message. The explanatory message should give you some clue as to whether and when the type will be removed from the class and what other constant to use instead. Loading history...
26		/**
27		* Charset of database
28		* If charset of db diff from os, do convert when execute sql.
29		* @var string
30		* @access public
31		*/
32		var $mCharsetDb = '';
33
34		/**
35		* Charset of operation system
36		* @var string
37		* @access public
38		* @see $mCharsetDb
39		*/
40		var $mCharsetOs = '';
41
42		/**
43		* Db connection object
44		* @var object
45		* @access private
46		*/
47		var $mDb;
48
49		/**
50		* Ignore columns
51		* These columns will not be trans to sql when processed.
52		* @var array
53		* @access public
54		*/
55		var $mIgnoreColumn = array('lasttime');
56
57		/**
58		* Log file
59		* Log file to write, this is only filename, path is $this->mTargetPath
60		* @var string
61		* @access public
62		* @see $mTargetPath
63		*/
64		var $mLogFile = 'dbbak2sql.log';
65
66		/**
67		* Db server information array
68		* Array item: host, user, pass, name, type.
69		* @var array
70		* @access private
71		*/
72		var $mServer = array();
73
74		/**
75		* Summary text
76		* @var string
77		* @access public
78		*/
79		var $mSummary = '';
80
81		/**
82		* Tables will be backup
83		* Include needed, exclude no needed, this is result.
84		* @var array
85		* @access private
86		*/
87		var $mTable = array();
88
89		/**
90		* Tables to be exclude from backup task
91		* @var array
92		* @access private
93		*/
94		var $mTableExclude = array();
95
96		/**
97		* Table need to be group by some cols when backup
98		* Usually used when table contains too much rows
99		* @var array
100		* @access private
101		*/
102		var $mTableGroupby = array();
103
104		/**
105		* Tables to be include in backup task
106		* If not empty, will only backup tables in this list.
107		* @var array
108		* @access private
109		*/
110		var $mTableInclude = array();
111
112		/**
113		* Where to save exported sql files.
114		* @var string
115		* @access private
116		*/
117		var $mTargetPath = '/tmp/dbbak2sql';
118
119
120		/**
121		* Construct function
122		* @access public
123		* @param array $server Db server information
124		*/
125		function __construct($server=array())
		0 ignored issues – show Best Practice introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report It is generally recommended to explicitly declare the visibility for methods. Adding explicit visibility (`private`, `protected`, or `public`) is generally recommend to communicate to other developers how, and from where this method is intended to be used. Loading history...
126		{
127		if (!empty($server))
128		$this->SetDatabase($server);
129		} // end of func __construct
130
131
132		/**
133		* Do backup to database
134		* @access public
135		*/
136		public function Bak()
137		{
138		file_put_contents($this->mTargetPath . '/' . $this->mLogFile, '');
139		$this->GetTableList();
140		foreach ($this->mTable as $tbl)
141		$this->BakTable($tbl);
142		$this->Summary();
143		} // end of func Bak
144
145
146		/**
147		* Do backup to a single table
148		* @access private
149		* @param string $tbl Table name
150		*/
151		private function BakTable($tbl)
152		{
153		// Clear sql file(sql is save to seperated file, not need clear anymore
154		//file_put_contents($this->mTargetPath . "/$tbl.sql", '');
155		$this->Log("Begin to backup $tbl, ");
156
157		$cols = $this->GetTblFields($tbl);
158
159		// Split sql to 10000 rows per step
160		$sql_step = 10000;
161		$sql_offset = 0;
162		// Rows and Byte count
163		$done_rows = 0;
164		$done_bytes = 0;
165
166		// Get total rows
167		$sql = "select count(1) as c from $tbl";
168		$rs = $this->mDb->Execute($sql);
169		$rowcount = $rs->fields['c'];
170		$this->Log("Got $rowcount rows: ");
171
172		// Write rs to sql
173		// GetInsertSQL failed for unknown reason, manual generate sql
174		//$sql = $this->mDb->GetInsertSQL($rs, $cols, false, false);
175		$bakfile = $this->mTargetPath . "/$tbl.sql";
176		$sql = "truncate table $tbl;\n";
177		if (true == $this->NeedIdentityInsert())
		0 ignored issues – show Coding Style Best Practice introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing two booleans. Considering using the strict comparison `===` instead. When comparing two booleans, it is generally considered safer to use the strict comparison operator. Loading history...
178		$sql .= "set identity_insert $tbl on;\n";
179
180		// Backup by groupby will cause two situation:
181		// 1. one sql file will contain rows diffs with sql_step.
182		// 2. sql file saved's number sometimes is not continued.
183
184		// Groupby rules is converted to where clauses
185		$ar_where = $this->GroupbyRule2WhereSql($tbl);
186		while ($sql_offset < $rowcount)
187		{
188		$this->Log(".");
189		// Execute sql
190		// When ar_where is empty, the loop should be end.
191		// Or groupby is not used.
192		if (!empty($ar_where))
193		{
194		$s_where = array_shift($ar_where);
195		$sql_select = "select * from $tbl $s_where";
196		$rs = $this->mDb->Execute($sql_select);
197		}
198		else
199		{
200		$sql_select = "select * from $tbl";
201		// This select sql does not need iconv
202		//if ($this->mCharsetDb != $this->mCharsetOs)
203		// $sql = mb_convert_encoding($sql, $this->mCharsetDb, $this->mCharsetOs);
204		$rs = $this->mDb->SelectLimit($sql_select, $sql_step, $sql_offset);
205		}
206		$rs_rows = $rs->RecordCount();
207		if (0 != $this->mDb->ErrorNo())
208		$this->Log("\n" . $db->ErrorMsg() . "\n");
		0 ignored issues – show Bug introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report The variable `$db` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
209		else
210		{
211		$sql .= $this->Rs2Sql($rs, $tbl, $cols);
212		$done_rows += $rs_rows;
213		}
214
215		// Save this step to file
216		if ($this->mCharsetDb != $this->mCharsetOs)
217		$sql = mb_convert_encoding($sql, $this->mCharsetOs, $this->mCharsetDb);
218		// Save to seperated file, first check about how many files will be used.
219		if ($rowcount > $sql_step)
220		{
221		$i = strlen(strval(ceil($rowcount / $sql_step)));
222		$s = substr(str_repeat('0', $i) . strval(floor($sql_offset / $sql_step)), $i * -1) . '.';
223		}
224		else
225		$s = '';
226		$bakfile = $this->mTargetPath . "/$tbl.${s}sql";
227		file_put_contents($bakfile, $sql, FILE_APPEND);
228		// Prepare for loop
229		$done_bytes += strlen($sql);
230		unset($sql);
231		$sql = '';
232		//$sql_offset += $sql_step;
233		$sql_offset += $rs_rows;
234		unset($rs);
235		}
236
237		// End sql, the last one.
238		if (true == $this->NeedIdentityInsert())
		0 ignored issues – show Coding Style Best Practice introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing two booleans. Considering using the strict comparison `===` instead. When comparing two booleans, it is generally considered safer to use the strict comparison operator. Loading history...
239		$sql .= "set identity_insert $tbl off;\n";
240		file_put_contents($bakfile, $sql, FILE_APPEND);
241
242		$this->Log("Saved $done_rows rows, Total size: $done_bytes bytes.\n");
243
244		} // end of func BakTable
245
246
247		/**
248		* 获得数据库连接
249		* @access private
250		* @param array $server
251		* @return object
252		*/
253		private function &DbConn($server)
254		{
255		global $ADODB_FETCH_MODE;
256
257		//ADODB设定
258		$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
259
260		try
261		{
262		$conn = &ADONewConnection($server['type']);
263		//$conn->debug = true;
264		$conn->Connect($server['host'],
265		$server['user'],
266		$server['pass'],
267		$server['name']);
268		//针对mysql 4.1以上，UTF8编码的数据库，需要在连接后指定编码
269		//$conn->Execute('set names "utf8"');
270		if ('mysql' == $server['type']) $conn->Execute('set names "utf8"');
271		}
272		catch (Exception $e)
273		{
274		//var_dump($e);
275		adodb_backtrace($e->getTrace());
276		//echo $e;
277		exit();
278		}
279		return $conn;
280		} // end of func DbConn
281
282
283		/**
284		* Retrieve table list from db
285		* @access private
286		*/
287		private function GetTableList()
288		{
289		if (!empty($this->mTableInclude))
290		$this->mTable = $this->mTableInclude;
291		else
292		// Adodb 4.65 can't read sysbase table list currect,
293		// Replaced it with 4.93a, it's fine.
294		$this->mTable = $this->mDb->MetaTables('TABLES');
295
296		// Compute exclude
297		foreach ($this->mTableExclude as $tbl)
298		{
299		$idx = array_search($tbl, $this->mTable);
300		if (!(false === $idx))
301		unset($this->mTable[$idx]);
302		}
303
304		// Write Log
305		$this->Log("Ready for backup " . count($this->mTable) . " tables.\n");
306		} // end of func GetTableList
307
308
309		/**
310		* Get fields of a table, ignore prefered fields
311		* @access private
312		* @param string $tbl
313		* @return array
314		*/
315		private function GetTblFields($tbl)
316		{
317		$rs_cols = $this->mDb->MetaColumns($tbl, false);
318		//print_r($rs_cols);
319		$cols = array();
320		if (!empty($rs_cols))
321		foreach ($rs_cols as $c)
322		{
323		// Ignore some columns ?(timestamp)
324		if (false == in_array($c->name, $this->mIgnoreColumn))
		0 ignored issues – show Coding Style Best Practice introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing two booleans. Considering using the strict comparison `===` instead. When comparing two booleans, it is generally considered safer to use the strict comparison operator. Loading history...
325		array_push($cols, $c->name);
326		}
327		return $cols;
328		} // end of func GetTblFields
329
330
331		/**
332		* Convert groupby rules to where sql clauses
333		* Retrieve data from db by groupby rules, and convert to where sql.
334		* Used when backup, where clauses can used directly in select sql
335		* @access private
336		* @param string $tbl
337		* @return array
338		*/
339		private function GroupbyRule2WhereSql($tbl)
340		{
341		$ar_where = array();
342		if (!empty($this->mTableGroupby[$tbl]))
343		{
344		$groupby = $this->mTableGroupby[$tbl];
345		$sql = "select distinct $groupby from $tbl";
346		$rs = $this->mDb->Execute($sql);
347
348		// Convert every rows to where sql
349		$cols = explode(',', $groupby);
350		$rs_cols = $this->mDb->MetaColumns($tbl, false);
351		while (!empty($rs) && !$rs->EOF && !empty($cols))
352		{
353		$sql = ' WHERE 1=1 ';
354	View Code Duplication	foreach ($cols as $c)
		0 ignored issues – show Duplication introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
355		{
356		$val = $this->ParseSqlData($rs->fields[$c], $rs_cols[strtoupper($c)]->type);
357		$sql .= " and $c=$val ";
358		}
359		array_push($ar_where, $sql);
360		$rs->MoveNext();
361		}
362		}
363		return $ar_where;
364		} // end of function GroupbyRule2WhereSql
365
366
367		/**
368		* Save log
369		* Both log file and summary text is saved to.
370		* @access private
371		* @param string $log
372		*/
373		public function Log ($log) {
374		$logfile = $this->mTargetPath . '/' . $this->mLogFile;
375		file_put_contents($logfile, $log, FILE_APPEND);
376		echo $log;
377		$this->mSummary .= $log;
378		} // end of func Log
379
380
381		/**
382		* Determin if current db driver need set identity_insert tbl on/off
383		* @access private
384		* @return boolean
385		*/
386		private function NeedIdentityInsert()
387		{
388		$ar_need = array('mssql', 'sybase', 'sybase_ase');
389		if (true == in_array($this->mServer['type'], $ar_need))
		0 ignored issues – show Coding Style Best Practice introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing two booleans. Considering using the strict comparison `===` instead. When comparing two booleans, it is generally considered safer to use the strict comparison operator. Loading history...
390		return true;
391		else
392		return false;
393		} // end of func NeedIdentityInsert
394
395
396		/**
397		* Parse sql text used in sql value field
398		* @access private
399		* @param string $val
400		* @param string $type
401		* @return string
402		*/
403		private function ParseSqlData($val, $type)
404		{
405		// First, ' -> '' in sybase
406		//if (true == in_array($this->mServer['type'], array('sybase', 'sybase_ase')))
407		// $val = str_replace("'", "''", $val);
408		// Quote fields of char
409		$varchar = array('char', 'charn', 'text', 'varchar', 'varchar2', 'varcharn');
410		if (true == in_array($type, $varchar))
		0 ignored issues – show Coding Style Best Practice introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing two booleans. Considering using the strict comparison `===` instead. When comparing two booleans, it is generally considered safer to use the strict comparison operator. Loading history...
411		$val = '"' . addslashes($val) . '"';
412
413		// Datetime field
414		$datestyle = array('date', 'daten', 'datetime', 'datetimn');
415		if (in_array($type, $datestyle))
416		if (empty($val))
417		$val = 'null';
418		else
419		$val = '"' . $val . '"';
420
421		// If a numeric field is null
422		if (!in_array($type, $varchar) && !in_array($type, $datestyle) && is_null($val))
423		$val = 'null';
424
425		return $val;
426		} // end of func ParseSqlData
427
428
429		/**
430		* Convert ADOdb recordset to sql text
431		* @access private
432		* @param object $rs
433		* @param string $tbl
434		* @param array $cols
435		* @return string
436		*/
437		private function Rs2Sql(&$rs, $tbl, $cols=array())
438		{
439		if (empty($rs) \|\| $rs->EOF)
440		return '';
441		else
442		{
443		$sql = '';
444		if (empty($cols))
445		$cols = $this->GetTblFields($tbl);
446		$rs_cols = $this->mDb->MetaColumns($tbl, false);
447
448		while (!$rs->EOF)
449		{
450		// Insert sql begin
451		$sql_i = "INSERT INTO $tbl (" . implode(',', $cols) . " ) VALUES ( \n";
452		// Fields data
453		$ar = array();
454	View Code Duplication	foreach ($cols as $c)
		0 ignored issues – show Duplication introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
455		{
456		$val = $rs->fields[$c];
457		$type = $rs_cols[strtoupper($c)]->type;
458		array_push($ar, $this->ParseSqlData($val, $type));
459		}
460		$sql_i .= implode(',', $ar) . "\n";
461		// Insert sql end
462		$sql_i .= ");\n";
463		$sql .= $sql_i;
464		// Move cursor
465		$rs->MoveNext();
466		}
467		}
468		return $sql;
469		} // end of func Rs2Sql
470
471
472		/**
473		* Accept database information from outside class
474		* Didnot validate data send in.
475		* And connect to db after store infomation.
476		* @access public
477		* @var array $server array items: host, user, pass, name, type
478		*/
479	View Code Duplication	public function SetDatabase($server)
		0 ignored issues – show Duplication introduced 2018-01-24 08:29 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
480		{
481		if (!empty($server) && is_array($server))
482		{
483		$this->mServer = $server;
484		$this->mDb = $this->DbConn($this->mServer);
485		}
486		} // end of func SetDatabase
487
488
489		/**
490		* Set tables will not be backup
491		* @access public
492		* @var array $ar
493		*/
494		public function SetTableExclude($ar)
495		{
496		if (!empty($ar) and is_array($ar))
497		{
498		$this->mTableExclude = $ar;
499		}
500		} // end of func SetTableExclude
501
502
503		/**
504		* Set table group by rules when backup-select
505		* If given cols is empty, it will remove tbl from list need-to-be groupby.
506		* Multi cols can be assigned split by ','.
507		* @access public
508		* @var string $tbl
509		* @var string $cols
510		*/
511		public function SetTableGroupby($tbl, $cols)
512		{
513		if (empty($cols))
514		unset($this->mTableGroupby[$tbl]);
515		else
516		$this->mTableGroupby[$tbl] = $cols;
517		} // end of func SetTableGroupby
518
519
520		/**
521		* Set tables will only be backup
522		* @access public
523		* @var array $ar
524		*/
525		public function SetTableInclude($ar)
526		{
527		if (!empty($ar) and is_array($ar))
528		{
529		$this->mTableInclude = $ar;
530		}
531		} // end of func SetTableInclude
532
533
534		/**
535		* Set where to save sql files exported.
536		* If directory doesn't exists, create it.
537		* @access public
538		* @var string $path
539		*/
540		public function SetTargetPath($path)
541		{
542		$this->mTargetPath = $path;
543		// Check and create
544		if (file_exists($path) && !is_dir($path))
545		die("Target path is a file.");
546		elseif (!file_exists($path))
547		mkdir($path, 0700, true); // Do path end with '/' needed ?
548		} // end of func SetTargetPath
549
550		/**
551		* Print or write summary text of the whole backup process
552		* @access private
553		*/
554		private function Summary()
555		{
556		echo $this->mSummary . "\n";
557		} // end of func Summary
558
559
560		} // end of class DbBak2Sql
561		/*
562		$db = DbConn();
563
564		//打印各市地区编码
565		$sql[2] = 'select substring(bm, 1, 4), mc from dqk where bm like "%00"';
566
567		$sql = $sql[4];
568		$sql = mb_convert_encoding($sql, 'gbk', 'utf8');
569		$rs = $db->Execute($sql);
570		if (0 != $db->ErrorNo())
571		echo $db->ErrorMsg();
572		$s = '';
573		$ar = $rs->GetArray();
574
575		//输出方式一，直接print
576		//$s = print_r($ar, true);
577		//输出方式二，tab间隔，便于导入
578		foreach ($ar as $key=>$row)
579		{
580		foreach ($row as $var)
581		$s .= "$var\t";
582		$s .= "\n";
583		}
584
585		$s = mb_convert_encoding($s, 'utf8', 'gbk');
586		echo $s;
587		*/
588		?>
		0 ignored issues – show Best Practice introduced 2016-06-01 06:17 UTC by Report Bug Copy Issue Report It is not recommended to use PHP's closing tag `?>` in files other than templates. Using a closing tag in PHP files that only contain PHP code is not recommended as you might accidentally add whitespace after the closing tag which would then be output by PHP. This can cause severe problems, for example headers cannot be sent anymore. A simple precaution is to leave off the closing tag as it is not required, and it also has no negative effects whatsoever. Loading history...
589

fwolf / fwlib

DbBak2Sql::__construct() A last analyzed 2019-05-09 15:53 UTC

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DbBak2Sql::__construct() A
last analyzed 2019-05-09 15:53 UTC