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| Current File : /var/www/html/quanly/myadminx/libraries/classes/Table.php |
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Holds the Table class
*
* @package PhpMyAdmin
*/
namespace PhpMyAdmin;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Index;
use PhpMyAdmin\Message;
use PhpMyAdmin\Plugins;
use PhpMyAdmin\Plugins\Export\ExportSql;
use PhpMyAdmin\Relation;
use PhpMyAdmin\SqlParser\Components\Expression;
use PhpMyAdmin\SqlParser\Components\OptionsArray;
use PhpMyAdmin\SqlParser\Context;
use PhpMyAdmin\SqlParser\Parser;
use PhpMyAdmin\SqlParser\Statements\DropStatement;
use PhpMyAdmin\SqlParser\Utils\Table as TableUtils;
use PhpMyAdmin\Util;
/**
* Handles everything related to tables
*
* @todo make use of Message and Error
* @package PhpMyAdmin
*/
class Table
{
/**
* UI preferences properties
*/
const PROP_SORTED_COLUMN = 'sorted_col';
const PROP_COLUMN_ORDER = 'col_order';
const PROP_COLUMN_VISIB = 'col_visib';
/**
* @var string engine (innodb, myisam, bdb, ...)
*/
var $engine = '';
/**
* @var string type (view, base table, system view)
*/
var $type = '';
/**
* @var array UI preferences
*/
var $uiprefs;
/**
* @var array errors occurred
*/
var $errors = array();
/**
* @var array messages
*/
var $messages = array();
/**
* @var string table name
*/
protected $_name = '';
/**
* @var string database name
*/
protected $_db_name = '';
/**
* @var DatabaseInterface
*/
protected $_dbi;
/**
* @var Relation $relation
*/
private $relation;
/**
* Constructor
*
* @param string $table_name table name
* @param string $db_name database name
* @param DatabaseInterface $dbi database interface for the table
*/
public function __construct($table_name, $db_name, DatabaseInterface $dbi = null)
{
if (empty($dbi)) {
$dbi = $GLOBALS['dbi'];
}
$this->_dbi = $dbi;
$this->_name = $table_name;
$this->_db_name = $db_name;
$this->relation = new Relation();
}
/**
* returns table name
*
* @see Table::getName()
* @return string table name
*/
public function __toString()
{
return $this->getName();
}
/**
* Table getter
*
* @param string $table_name table name
* @param string $db_name database name
* @param DatabaseInterface $dbi database interface for the table
*
* @return Table
*/
public static function get($table_name, $db_name, DatabaseInterface $dbi = null)
{
return new Table($table_name, $db_name, $dbi);
}
/**
* return the last error
*
* @return string the last error
*/
public function getLastError()
{
return end($this->errors);
}
/**
* return the last message
*
* @return string the last message
*/
public function getLastMessage()
{
return end($this->messages);
}
/**
* returns table name
*
* @param boolean $backquoted whether to quote name with backticks ``
*
* @return string table name
*/
public function getName($backquoted = false)
{
if ($backquoted) {
return Util::backquote($this->_name);
}
return $this->_name;
}
/**
* returns database name for this table
*
* @param boolean $backquoted whether to quote name with backticks ``
*
* @return string database name for this table
*/
public function getDbName($backquoted = false)
{
if ($backquoted) {
return Util::backquote($this->_db_name);
}
return $this->_db_name;
}
/**
* returns full name for table, including database name
*
* @param boolean $backquoted whether to quote name with backticks ``
*
* @return string
*/
public function getFullName($backquoted = false)
{
return $this->getDbName($backquoted) . '.'
. $this->getName($backquoted);
}
/**
* Checks the storage engine used to create table
*
* @param array|string $engine Checks the table engine against an
* array of engine strings or a single string, should be uppercase
*
* @return bool True, if $engine matches the storage engine for the table,
* False otherwise.
*/
public function isEngine($engine)
{
$tbl_storage_engine = $this->getStorageEngine();
if (is_array($engine)){
foreach($engine as $e){
if($e == $tbl_storage_engine){
return true;
}
}
return false;
}else{
return $tbl_storage_engine == $engine;
}
}
/**
* returns whether the table is actually a view
*
* @return boolean whether the given is a view
*/
public function isView()
{
$db = $this->_db_name;
$table = $this->_name;
if (empty($db) || empty($table)) {
return false;
}
// use cached data or load information with SHOW command
if ($this->_dbi->getCachedTableContent(array($db, $table)) != null
|| $GLOBALS['cfg']['Server']['DisableIS']
) {
$type = $this->getStatusInfo('TABLE_TYPE');
return $type == 'VIEW' || $type == 'SYSTEM VIEW';
}
// information_schema tables are 'SYSTEM VIEW's
if ($db == 'information_schema') {
return true;
}
// query information_schema
$result = $this->_dbi->fetchResult(
"SELECT TABLE_NAME
FROM information_schema.VIEWS
WHERE TABLE_SCHEMA = '" . $GLOBALS['dbi']->escapeString($db) . "'
AND TABLE_NAME = '" . $GLOBALS['dbi']->escapeString($table) . "'"
);
return $result ? true : false;
}
/**
* Returns whether the table is actually an updatable view
*
* @return boolean whether the given is an updatable view
*/
public function isUpdatableView()
{
if (empty($this->_db_name) || empty($this->_name)) {
return false;
}
$result = $this->_dbi->fetchResult(
"SELECT TABLE_NAME
FROM information_schema.VIEWS
WHERE TABLE_SCHEMA = '" . $GLOBALS['dbi']->escapeString($this->_db_name) . "'
AND TABLE_NAME = '" . $GLOBALS['dbi']->escapeString($this->_name) . "'
AND IS_UPDATABLE = 'YES'"
);
return $result ? true : false;
}
/**
* Checks if this is a merge table
*
* If the ENGINE of the table is MERGE or MRG_MYISAM (alias),
* this is a merge table.
*
* @return boolean true if it is a merge table
*/
public function isMerge()
{
return $this->isEngine(array('MERGE', 'MRG_MYISAM'));
}
/**
* Returns full table status info, or specific if $info provided
* this info is collected from information_schema
*
* @param string $info specific information to be fetched
* @param boolean $force_read read new rather than serving from cache
* @param boolean $disable_error if true, disables error message
*
* @todo DatabaseInterface::getTablesFull needs to be merged
* somehow into this class or at least better documented
*
* @return mixed
*/
public function getStatusInfo(
$info = null,
$force_read = false,
$disable_error = false
) {
$db = $this->_db_name;
$table = $this->_name;
if (! empty($_SESSION['is_multi_query'])) {
$disable_error = true;
}
// sometimes there is only one entry (ExactRows) so
// we have to get the table's details
if ($this->_dbi->getCachedTableContent(array($db, $table)) == null
|| $force_read
|| count($this->_dbi->getCachedTableContent(array($db, $table))) == 1
) {
$this->_dbi->getTablesFull($db, $table);
}
if ($this->_dbi->getCachedTableContent(array($db, $table)) == null) {
// happens when we enter the table creation dialog
// or when we really did not get any status info, for example
// when $table == 'TABLE_NAMES' after the user tried SHOW TABLES
return '';
}
if (null === $info) {
return $this->_dbi->getCachedTableContent(array($db, $table));
}
// array_key_exists allows for null values
if (!array_key_exists(
$info, $this->_dbi->getCachedTableContent(array($db, $table))
)
) {
if (! $disable_error) {
trigger_error(
__('Unknown table status:') . ' ' . $info,
E_USER_WARNING
);
}
return false;
}
return $this->_dbi->getCachedTableContent(array($db, $table, $info));
}
/**
* Returns the Table storage Engine for current table.
*
* @return string Return storage engine info if it is set for
* the selected table else return blank.
*/
public function getStorageEngine() {
$table_storage_engine = $this->getStatusInfo('ENGINE', false, true);
if ($table_storage_engine === false) {
return '';
}
return strtoupper($table_storage_engine);
}
/**
* Returns the comments for current table.
*
* @return string Return comment info if it is set for the selected table or return blank.
*/
public function getComment() {
$table_comment = $this->getStatusInfo('TABLE_COMMENT', false, true);
if ($table_comment === false) {
return '';
}
return $table_comment;
}
/**
* Returns the collation for current table.
*
* @return string Return blank if collation is empty else return the collation info from table info.
*/
public function getCollation() {
$table_collation = $this->getStatusInfo('TABLE_COLLATION', false, true);
if ($table_collation === false) {
return '';
}
return $table_collation;
}
/**
* Returns the info about no of rows for current table.
*
* @return integer Return no of rows info if it is not null for the selected table or return 0.
*/
public function getNumRows() {
$table_num_row_info = $this->getStatusInfo('TABLE_ROWS', false, true);
if (false === $table_num_row_info) {
$table_num_row_info = $this->_dbi->getTable($this->_db_name, $showtable['Name'])
->countRecords(true);
}
return $table_num_row_info ? $table_num_row_info : 0 ;
}
/**
* Returns the Row format for current table.
*
* @return string Return table row format info if it is set for the selected table or return blank.
*/
public function getRowFormat() {
$table_row_format = $this->getStatusInfo('ROW_FORMAT', false, true);
if ($table_row_format === false) {
return '';
}
return $table_row_format;
}
/**
* Returns the auto increment option for current table.
*
* @return integer Return auto increment info if it is set for the selected table or return blank.
*/
public function getAutoIncrement() {
$table_auto_increment = $this->getStatusInfo('AUTO_INCREMENT', false, true);
return isset($table_auto_increment) ? $table_auto_increment : '';
}
/**
* Returns the array for CREATE statement for current table.
* @return array Return options array info if it is set for the selected table or return blank.
*/
public function getCreateOptions() {
$table_options = $this->getStatusInfo('CREATE_OPTIONS', false, true);
$create_options_tmp = empty($table_options) ? array() : explode(' ', $table_options);
$create_options = array();
// export create options by its name as variables into global namespace
// f.e. pack_keys=1 becomes available as $pack_keys with value of '1'
// unset($pack_keys);
foreach ($create_options_tmp as $each_create_option) {
$each_create_option = explode('=', $each_create_option);
if (isset($each_create_option[1])) {
// ensure there is no ambiguity for PHP 5 and 7
$create_options[$each_create_option[0]] = $each_create_option[1];
}
}
// we need explicit DEFAULT value here (different from '0')
$create_options['pack_keys'] = (! isset($create_options['pack_keys']) || strlen($create_options['pack_keys']) == 0)
? 'DEFAULT'
: $create_options['pack_keys'];
return $create_options;
}
/**
* generates column specification for ALTER or CREATE TABLE syntax
*
* @param string $name name
* @param string $type type ('INT', 'VARCHAR', 'BIT', ...)
* @param string $length length ('2', '5,2', '', ...)
* @param string $attribute attribute
* @param string $collation collation
* @param bool|string $null with 'NULL' or 'NOT NULL'
* @param string $default_type whether default is CURRENT_TIMESTAMP,
* NULL, NONE, USER_DEFINED
* @param string $default_value default value for USER_DEFINED
* default type
* @param string $extra 'AUTO_INCREMENT'
* @param string $comment field comment
* @param string $virtuality virtuality of the column
* @param string $expression expression for the virtual column
* @param string $move_to new position for column
*
* @todo move into class PMA_Column
* @todo on the interface, some js to clear the default value when the
* default current_timestamp is checked
*
* @return string field specification
*/
static function generateFieldSpec($name, $type, $length = '',
$attribute = '', $collation = '', $null = false,
$default_type = 'USER_DEFINED', $default_value = '', $extra = '',
$comment = '', $virtuality = '', $expression = '', $move_to = ''
) {
$is_timestamp = mb_strpos(
mb_strtoupper($type),
'TIMESTAMP'
) !== false;
$query = Util::backquote($name) . ' ' . $type;
// allow the possibility of a length for TIME, DATETIME and TIMESTAMP
// (will work on MySQL >= 5.6.4)
//
// MySQL permits a non-standard syntax for FLOAT and DOUBLE,
// see https://dev.mysql.com/doc/refman/5.5/en/floating-point-types.html
//
$pattern = '@^(DATE|TINYBLOB|TINYTEXT|BLOB|TEXT|'
. 'MEDIUMBLOB|MEDIUMTEXT|LONGBLOB|LONGTEXT|SERIAL|BOOLEAN|UUID)$@i';
if (strlen($length) !== 0 && ! preg_match($pattern, $type)) {
// Note: The variable $length here can contain several other things
// besides length - ENUM/SET value or length of DECIMAL (eg. 12,3)
// so we can't just convert it to integer
$query .= '(' . $length . ')';
}
if ($attribute != '') {
$query .= ' ' . $attribute;
if ($is_timestamp
&& preg_match('/TIMESTAMP/i', $attribute)
&& strlen($length) !== 0
&& $length !== 0
) {
$query .= '(' . $length . ')';
}
}
// if column is virtual, check if server type is Mysql as only Mysql server
// supports extra column properties
$isVirtualColMysql = $virtuality && in_array(Util::getServerType(), array('MySQL', 'Percona Server'));
// if column is virtual, check if server type is MariaDB as MariaDB server
// supports no extra virtual column properties except CHARACTER SET for text column types
$isVirtualColMariaDB = $virtuality && Util::getServerType() === 'MariaDB';
$matches = preg_match(
'@^(TINYTEXT|TEXT|MEDIUMTEXT|LONGTEXT|VARCHAR|CHAR|ENUM|SET)$@i',
$type
);
if (! empty($collation) && $collation != 'NULL' && $matches) {
$query .= Util::getCharsetQueryPart(
$isVirtualColMariaDB ? preg_replace('~_.+~s', '', $collation) : $collation,
true
);
}
if ($virtuality) {
$query .= ' AS (' . $expression . ') ' . $virtuality;
}
if (! $virtuality || $isVirtualColMysql) {
if ($null !== false) {
if ($null == 'YES') {
$query .= ' NULL';
} else {
$query .= ' NOT NULL';
}
}
if (! $virtuality) {
switch ($default_type) {
case 'USER_DEFINED' :
if ($is_timestamp && $default_value === '0') {
// a TIMESTAMP does not accept DEFAULT '0'
// but DEFAULT 0 works
$query .= ' DEFAULT 0';
} elseif ($type == 'BIT') {
$query .= ' DEFAULT b\''
. preg_replace('/[^01]/', '0', $default_value)
. '\'';
} elseif ($type == 'BOOLEAN') {
if (preg_match('/^1|T|TRUE|YES$/i', $default_value)) {
$query .= ' DEFAULT TRUE';
} elseif (preg_match('/^0|F|FALSE|NO$/i', $default_value)) {
$query .= ' DEFAULT FALSE';
} else {
// Invalid BOOLEAN value
$query .= ' DEFAULT \''
. $GLOBALS['dbi']->escapeString($default_value) . '\'';
}
} elseif ($type == 'BINARY' || $type == 'VARBINARY') {
$query .= ' DEFAULT 0x' . $default_value;
} else {
$query .= ' DEFAULT \''
. $GLOBALS['dbi']->escapeString($default_value) . '\'';
}
break;
/** @noinspection PhpMissingBreakStatementInspection */
case 'NULL' :
// If user uncheck null checkbox and not change default value null,
// default value will be ignored.
if ($null !== false && $null !== 'YES') {
break;
}
// else fall-through intended, no break here
case 'CURRENT_TIMESTAMP' :
case 'current_timestamp()':
$query .= ' DEFAULT ' . $default_type;
if (strlen($length) !== 0
&& $length !== 0
&& $is_timestamp
&& $default_type !== 'NULL' // Not to be added in case of NULL
) {
$query .= '(' . $length . ')';
}
break;
case 'NONE' :
default :
break;
}
}
if (!empty($extra)) {
if ($virtuality) {
$extra = trim(preg_replace('~^\s*AUTO_INCREMENT\s*~is', ' ', $extra));
}
$query .= ' ' . $extra;
}
}
if (!empty($comment)) {
$query .= " COMMENT '" . $GLOBALS['dbi']->escapeString($comment) . "'";
}
// move column
if ($move_to == '-first') { // dash can't appear as part of column name
$query .= ' FIRST';
} elseif ($move_to != '') {
$query .= ' AFTER ' . Util::backquote($move_to);
}
return $query;
} // end function
/**
* Checks if the number of records in a table is at least equal to
* $min_records
*
* @param int $min_records Number of records to check for in a table
*
* @return bool True, if at least $min_records exist, False otherwise.
*/
public function checkIfMinRecordsExist($min_records = 0)
{
$check_query = 'SELECT ';
$fieldsToSelect = '';
$uniqueFields = $this->getUniqueColumns(true, false);
if (count($uniqueFields) > 0) {
$fieldsToSelect = implode(', ', $uniqueFields);
} else {
$indexedCols = $this->getIndexedColumns(true, false);
if (count($indexedCols) > 0) {
$fieldsToSelect = implode(', ', $indexedCols);
} else {
$fieldsToSelect = '*';
}
}
$check_query .= $fieldsToSelect
. ' FROM ' . $this->getFullName(true)
. ' LIMIT ' . $min_records;
$res = $GLOBALS['dbi']->tryQuery(
$check_query
);
if ($res !== false) {
$num_records = $GLOBALS['dbi']->numRows($res);
if ($num_records >= $min_records) {
return true;
}
}
return false;
}
/**
* Counts and returns (or displays) the number of records in a table
*
* @param bool $force_exact whether to force an exact count
*
* @return mixed the number of records if "retain" param is true,
* otherwise true
*/
public function countRecords($force_exact = false)
{
$is_view = $this->isView();
$db = $this->_db_name;
$table = $this->_name;
if ($this->_dbi->getCachedTableContent(array($db, $table, 'ExactRows')) != null) {
$row_count = $this->_dbi->getCachedTableContent(
array($db, $table, 'ExactRows')
);
return $row_count;
}
$row_count = false;
if (! $force_exact) {
if (($this->_dbi->getCachedTableContent(array($db, $table, 'Rows')) == null)
&& !$is_view
) {
$tmp_tables = $this->_dbi->getTablesFull($db, $table);
if (isset($tmp_tables[$table])) {
$this->_dbi->cacheTableContent(
array($db, $table),
$tmp_tables[$table]
);
}
}
if ($this->_dbi->getCachedTableContent(array($db, $table, 'Rows')) != null) {
$row_count = $this->_dbi->getCachedTableContent(
array($db, $table, 'Rows')
);
} else {
$row_count = false;
}
}
// for a VIEW, $row_count is always false at this point
if (false !== $row_count
&& $row_count >= $GLOBALS['cfg']['MaxExactCount']
) {
return $row_count;
}
if (! $is_view) {
$row_count = $this->_dbi->fetchValue(
'SELECT COUNT(*) FROM ' . Util::backquote($db) . '.'
. Util::backquote($table)
);
} else {
// For complex views, even trying to get a partial record
// count could bring down a server, so we offer an
// alternative: setting MaxExactCountViews to 0 will bypass
// completely the record counting for views
if ($GLOBALS['cfg']['MaxExactCountViews'] == 0) {
$row_count = false;
} else {
// Counting all rows of a VIEW could be too long,
// so use a LIMIT clause.
// Use try_query because it can fail (when a VIEW is
// based on a table that no longer exists)
$result = $this->_dbi->tryQuery(
'SELECT 1 FROM ' . Util::backquote($db) . '.'
. Util::backquote($table) . ' LIMIT '
. $GLOBALS['cfg']['MaxExactCountViews'],
DatabaseInterface::CONNECT_USER,
DatabaseInterface::QUERY_STORE
);
if (!$this->_dbi->getError()) {
$row_count = $this->_dbi->numRows($result);
$this->_dbi->freeResult($result);
}
}
}
if ($row_count) {
$this->_dbi->cacheTableContent(array($db, $table, 'ExactRows'), $row_count);
}
return $row_count;
} // end of the 'Table::countRecords()' function
/**
* Generates column specification for ALTER syntax
*
* @param string $oldcol old column name
* @param string $newcol new column name
* @param string $type type ('INT', 'VARCHAR', 'BIT', ...)
* @param string $length length ('2', '5,2', '', ...)
* @param string $attribute attribute
* @param string $collation collation
* @param bool|string $null with 'NULL' or 'NOT NULL'
* @param string $default_type whether default is CURRENT_TIMESTAMP,
* NULL, NONE, USER_DEFINED
* @param string $default_value default value for USER_DEFINED default
* type
* @param string $extra 'AUTO_INCREMENT'
* @param string $comment field comment
* @param string $virtuality virtuality of the column
* @param string $expression expression for the virtual column
* @param string $move_to new position for column
*
* @see Table::generateFieldSpec()
*
* @return string field specification
*/
public static function generateAlter($oldcol, $newcol, $type, $length,
$attribute, $collation, $null, $default_type, $default_value,
$extra, $comment, $virtuality, $expression, $move_to
) {
return Util::backquote($oldcol) . ' '
. self::generateFieldSpec(
$newcol, $type, $length, $attribute,
$collation, $null, $default_type, $default_value, $extra,
$comment, $virtuality, $expression, $move_to
);
} // end function
/**
* Inserts existing entries in a PMA_* table by reading a value from an old
* entry
*
* @param string $work The array index, which Relation feature to
* check ('relwork', 'commwork', ...)
* @param string $pma_table The array index, which PMA-table to update
* ('bookmark', 'relation', ...)
* @param array $get_fields Which fields will be SELECT'ed from the old entry
* @param array $where_fields Which fields will be used for the WHERE query
* (array('FIELDNAME' => 'FIELDVALUE'))
* @param array $new_fields Which fields will be used as new VALUES.
* These are the important keys which differ
* from the old entry
* (array('FIELDNAME' => 'NEW FIELDVALUE'))
*
* @global relation variable
*
* @return int|boolean
*/
public static function duplicateInfo($work, $pma_table, array $get_fields,
array $where_fields, array $new_fields
) {
$relation = new Relation();
$last_id = -1;
if (!isset($GLOBALS['cfgRelation']) || !$GLOBALS['cfgRelation'][$work]) {
return true;
}
$select_parts = array();
$row_fields = array();
foreach ($get_fields as $get_field) {
$select_parts[] = Util::backquote($get_field);
$row_fields[$get_field] = 'cc';
}
$where_parts = array();
foreach ($where_fields as $_where => $_value) {
$where_parts[] = Util::backquote($_where) . ' = \''
. $GLOBALS['dbi']->escapeString($_value) . '\'';
}
$new_parts = array();
$new_value_parts = array();
foreach ($new_fields as $_where => $_value) {
$new_parts[] = Util::backquote($_where);
$new_value_parts[] = $GLOBALS['dbi']->escapeString($_value);
}
$table_copy_query = '
SELECT ' . implode(', ', $select_parts) . '
FROM ' . Util::backquote($GLOBALS['cfgRelation']['db']) . '.'
. Util::backquote($GLOBALS['cfgRelation'][$pma_table]) . '
WHERE ' . implode(' AND ', $where_parts);
// must use DatabaseInterface::QUERY_STORE here, since we execute
// another query inside the loop
$table_copy_rs = $relation->queryAsControlUser(
$table_copy_query, true, DatabaseInterface::QUERY_STORE
);
while ($table_copy_row = @$GLOBALS['dbi']->fetchAssoc($table_copy_rs)) {
$value_parts = array();
foreach ($table_copy_row as $_key => $_val) {
if (isset($row_fields[$_key]) && $row_fields[$_key] == 'cc') {
$value_parts[] = $GLOBALS['dbi']->escapeString($_val);
}
}
$new_table_query = 'INSERT IGNORE INTO '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.' . Util::backquote($GLOBALS['cfgRelation'][$pma_table])
. ' (' . implode(', ', $select_parts) . ', '
. implode(', ', $new_parts) . ') VALUES (\''
. implode('\', \'', $value_parts) . '\', \''
. implode('\', \'', $new_value_parts) . '\')';
$relation->queryAsControlUser($new_table_query);
$last_id = $GLOBALS['dbi']->insertId();
} // end while
$GLOBALS['dbi']->freeResult($table_copy_rs);
return $last_id;
} // end of 'Table::duplicateInfo()' function
/**
* Copies or renames table
*
* @param string $source_db source database
* @param string $source_table source table
* @param string $target_db target database
* @param string $target_table target table
* @param string $what what to be moved or copied (data, dataonly)
* @param bool $move whether to move
* @param string $mode mode
*
* @return bool true if success, false otherwise
*/
public static function moveCopy($source_db, $source_table, $target_db,
$target_table, $what, $move, $mode
) {
global $err_url;
$relation = new Relation();
// Try moving the tables directly, using native `RENAME` statement.
if ($move && $what == 'data') {
$tbl = new Table($source_table, $source_db);
if ($tbl->rename($target_table, $target_db)) {
$GLOBALS['message'] = $tbl->getLastMessage();
return true;
}
}
// Setting required export settings.
$GLOBALS['sql_backquotes'] = 1;
$GLOBALS['asfile'] = 1;
// Ensuring the target database is valid.
if (! $GLOBALS['dblist']->databases->exists($source_db, $target_db)) {
if (! $GLOBALS['dblist']->databases->exists($source_db)) {
$GLOBALS['message'] = Message::rawError(
sprintf(
__('Source database `%s` was not found!'),
htmlspecialchars($source_db)
)
);
}
if (! $GLOBALS['dblist']->databases->exists($target_db)) {
$GLOBALS['message'] = Message::rawError(
sprintf(
__('Target database `%s` was not found!'),
htmlspecialchars($target_db)
)
);
}
return false;
}
/**
* The full name of source table, quoted.
* @var string $source
*/
$source = Util::backquote($source_db)
. '.' . Util::backquote($source_table);
// If the target database is not specified, the operation is taking
// place in the same database.
if (! isset($target_db) || strlen($target_db) === 0) {
$target_db = $source_db;
}
// Selecting the database could avoid some problems with replicated
// databases, when moving table from replicated one to not replicated one.
$GLOBALS['dbi']->selectDb($target_db);
/**
* The full name of target table, quoted.
* @var string $target
*/
$target = Util::backquote($target_db)
. '.' . Util::backquote($target_table);
// No table is created when this is a data-only operation.
if ($what != 'dataonly') {
/**
* Instance used for exporting the current structure of the table.
*
* @var PhpMyAdmin\Plugins\Export\ExportSql
*/
$export_sql_plugin = Plugins::getPlugin(
"export",
"sql",
'libraries/classes/Plugins/Export/',
array(
'export_type' => 'table',
'single_table' => false,
)
);
$no_constraints_comments = true;
$GLOBALS['sql_constraints_query'] = '';
// set the value of global sql_auto_increment variable
if (isset($_POST['sql_auto_increment'])) {
$GLOBALS['sql_auto_increment'] = $_POST['sql_auto_increment'];
}
/**
* The old structure of the table..
* @var string $sql_structure
*/
$sql_structure = $export_sql_plugin->getTableDef(
$source_db, $source_table, "\n", $err_url, false, false
);
unset($no_constraints_comments);
// -----------------------------------------------------------------
// Phase 0: Preparing structures used.
/**
* The destination where the table is moved or copied to.
* @var Expression
*/
$destination = new Expression(
$target_db, $target_table, ''
);
// Find server's SQL mode so the builder can generate correct
// queries.
// One of the options that alters the behaviour is `ANSI_QUOTES`.
Context::setMode(
$GLOBALS['dbi']->fetchValue("SELECT @@sql_mode")
);
// -----------------------------------------------------------------
// Phase 1: Dropping existent element of the same name (if exists
// and required).
if (isset($_POST['drop_if_exists'])
&& $_POST['drop_if_exists'] == 'true'
) {
/**
* Drop statement used for building the query.
* @var DropStatement $statement
*/
$statement = new DropStatement();
$tbl = new Table($target_db, $target_table);
$statement->options = new OptionsArray(
array(
$tbl->isView() ? 'VIEW' : 'TABLE',
'IF EXISTS',
)
);
$statement->fields = array($destination);
// Building the query.
$drop_query = $statement->build() . ';';
// Executing it.
$GLOBALS['dbi']->query($drop_query);
$GLOBALS['sql_query'] .= "\n" . $drop_query;
// If an existing table gets deleted, maintain any entries for
// the PMA_* tables.
$maintain_relations = true;
}
// -----------------------------------------------------------------
// Phase 2: Generating the new query of this structure.
/**
* The parser responsible for parsing the old queries.
* @var Parser $parser
*/
$parser = new Parser($sql_structure);
if (!empty($parser->statements[0])) {
/**
* The CREATE statement of this structure.
* @var \PhpMyAdmin\SqlParser\Statements\CreateStatement $statement
*/
$statement = $parser->statements[0];
// Changing the destination.
$statement->name = $destination;
// Building back the query.
$sql_structure = $statement->build() . ';';
// Executing it.
$GLOBALS['dbi']->query($sql_structure);
$GLOBALS['sql_query'] .= "\n" . $sql_structure;
}
// -----------------------------------------------------------------
// Phase 3: Adding constraints.
// All constraint names are removed because they must be unique.
if (($move || isset($GLOBALS['add_constraints']))
&& !empty($GLOBALS['sql_constraints_query'])
) {
$parser = new Parser($GLOBALS['sql_constraints_query']);
/**
* The ALTER statement that generates the constraints.
* @var \PhpMyAdmin\SqlParser\Statements\AlterStatement $statement
*/
$statement = $parser->statements[0];
// Changing the altered table to the destination.
$statement->table = $destination;
// Removing the name of the constraints.
foreach ($statement->altered as $idx => $altered) {
// All constraint names are removed because they must be unique.
if ($altered->options->has('CONSTRAINT')) {
$altered->field = null;
}
}
// Building back the query.
$GLOBALS['sql_constraints_query'] = $statement->build() . ';';
// Executing it.
if ($mode == 'one_table') {
$GLOBALS['dbi']->query($GLOBALS['sql_constraints_query']);
}
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_constraints_query'];
if ($mode == 'one_table') {
unset($GLOBALS['sql_constraints_query']);
}
}
// -----------------------------------------------------------------
// Phase 4: Adding indexes.
// View phase 3.
if (!empty($GLOBALS['sql_indexes'])) {
$parser = new Parser($GLOBALS['sql_indexes']);
$GLOBALS['sql_indexes'] = '';
/**
* The ALTER statement that generates the indexes.
* @var \PhpMyAdmin\SqlParser\Statements\AlterStatement $statement
*/
foreach ($parser->statements as $statement) {
// Changing the altered table to the destination.
$statement->table = $destination;
// Removing the name of the constraints.
foreach ($statement->altered as $idx => $altered) {
// All constraint names are removed because they must be unique.
if ($altered->options->has('CONSTRAINT')) {
$altered->field = null;
}
}
// Building back the query.
$sql_index = $statement->build() . ';';
// Executing it.
if ($mode == 'one_table' || $mode == 'db_copy') {
$GLOBALS['dbi']->query($sql_index);
}
$GLOBALS['sql_indexes'] .= $sql_index;
}
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_indexes'];
if ($mode == 'one_table' || $mode == 'db_copy') {
unset($GLOBALS['sql_indexes']);
}
}
// -----------------------------------------------------------------
// Phase 5: Adding AUTO_INCREMENT.
if (! empty($GLOBALS['sql_auto_increments'])) {
if ($mode == 'one_table' || $mode == 'db_copy') {
$parser = new Parser($GLOBALS['sql_auto_increments']);
/**
* The ALTER statement that alters the AUTO_INCREMENT value.
* @var \PhpMyAdmin\SqlParser\Statements\AlterStatement $statement
*/
$statement = $parser->statements[0];
// Changing the altered table to the destination.
$statement->table = $destination;
// Building back the query.
$GLOBALS['sql_auto_increments'] = $statement->build() . ';';
// Executing it.
$GLOBALS['dbi']->query($GLOBALS['sql_auto_increments']);
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_auto_increments'];
unset($GLOBALS['sql_auto_increments']);
}
}
} else {
$GLOBALS['sql_query'] = '';
}
$_table = new Table($target_table, $target_db);
// Copy the data unless this is a VIEW
if (($what == 'data' || $what == 'dataonly')
&& ! $_table->isView()
) {
$sql_set_mode = "SET SQL_MODE='NO_AUTO_VALUE_ON_ZERO'";
$GLOBALS['dbi']->query($sql_set_mode);
$GLOBALS['sql_query'] .= "\n\n" . $sql_set_mode . ';';
$_old_table = new Table($source_table, $source_db);
$nonGeneratedCols = $_old_table->getNonGeneratedColumns(true);
if (count($nonGeneratedCols) > 0) {
$sql_insert_data = 'INSERT INTO ' . $target . '('
. implode(', ', $nonGeneratedCols)
. ') SELECT ' . implode(', ', $nonGeneratedCols)
. ' FROM ' . $source;
$GLOBALS['dbi']->query($sql_insert_data);
$GLOBALS['sql_query'] .= "\n\n" . $sql_insert_data . ';';
}
}
$relation->getRelationsParam();
// Drops old table if the user has requested to move it
if ($move) {
// This could avoid some problems with replicated databases, when
// moving table from replicated one to not replicated one
$GLOBALS['dbi']->selectDb($source_db);
$_source_table = new Table($source_table, $source_db);
if ($_source_table->isView()) {
$sql_drop_query = 'DROP VIEW';
} else {
$sql_drop_query = 'DROP TABLE';
}
$sql_drop_query .= ' ' . $source;
$GLOBALS['dbi']->query($sql_drop_query);
// Renable table in configuration storage
$relation->renameTable(
$source_db, $target_db,
$source_table, $target_table
);
$GLOBALS['sql_query'] .= "\n\n" . $sql_drop_query . ';';
// end if ($move)
return true;
}
// we are copying
// Create new entries as duplicates from old PMA DBs
if ($what == 'dataonly' || isset($maintain_relations)) {
return true;
}
if ($GLOBALS['cfgRelation']['commwork']) {
// Get all comments and MIME-Types for current table
$comments_copy_rs = $relation->queryAsControlUser(
'SELECT column_name, comment'
. ($GLOBALS['cfgRelation']['mimework']
? ', mimetype, transformation, transformation_options'
: '')
. ' FROM '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.'
. Util::backquote($GLOBALS['cfgRelation']['column_info'])
. ' WHERE '
. ' db_name = \''
. $GLOBALS['dbi']->escapeString($source_db) . '\''
. ' AND '
. ' table_name = \''
. $GLOBALS['dbi']->escapeString($source_table) . '\''
);
// Write every comment as new copied entry. [MIME]
while ($comments_copy_row
= $GLOBALS['dbi']->fetchAssoc($comments_copy_rs)) {
$new_comment_query = 'REPLACE INTO '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.' . Util::backquote(
$GLOBALS['cfgRelation']['column_info']
)
. ' (db_name, table_name, column_name, comment'
. ($GLOBALS['cfgRelation']['mimework']
? ', mimetype, transformation, transformation_options'
: '')
. ') ' . ' VALUES(' . '\'' . $GLOBALS['dbi']->escapeString($target_db)
. '\',\'' . $GLOBALS['dbi']->escapeString($target_table) . '\',\''
. $GLOBALS['dbi']->escapeString($comments_copy_row['column_name'])
. '\',\''
. $GLOBALS['dbi']->escapeString($comments_copy_row['comment'])
. '\''
. ($GLOBALS['cfgRelation']['mimework']
? ',\'' . $GLOBALS['dbi']->escapeString(
$comments_copy_row['mimetype']
)
. '\',' . '\'' . $GLOBALS['dbi']->escapeString(
$comments_copy_row['transformation']
)
. '\',' . '\'' . $GLOBALS['dbi']->escapeString(
$comments_copy_row['transformation_options']
)
. '\''
: '')
. ')';
$relation->queryAsControlUser($new_comment_query);
} // end while
$GLOBALS['dbi']->freeResult($comments_copy_rs);
unset($comments_copy_rs);
}
// duplicating the bookmarks must not be done here, but
// just once per db
$get_fields = array('display_field');
$where_fields = array(
'db_name' => $source_db,
'table_name' => $source_table
);
$new_fields = array(
'db_name' => $target_db,
'table_name' => $target_table
);
self::duplicateInfo(
'displaywork',
'table_info',
$get_fields,
$where_fields,
$new_fields
);
/**
* @todo revise this code when we support cross-db relations
*/
$get_fields = array(
'master_field',
'foreign_table',
'foreign_field'
);
$where_fields = array(
'master_db' => $source_db,
'master_table' => $source_table
);
$new_fields = array(
'master_db' => $target_db,
'foreign_db' => $target_db,
'master_table' => $target_table
);
self::duplicateInfo(
'relwork',
'relation',
$get_fields,
$where_fields,
$new_fields
);
$get_fields = array(
'foreign_field',
'master_table',
'master_field'
);
$where_fields = array(
'foreign_db' => $source_db,
'foreign_table' => $source_table
);
$new_fields = array(
'master_db' => $target_db,
'foreign_db' => $target_db,
'foreign_table' => $target_table
);
self::duplicateInfo(
'relwork',
'relation',
$get_fields,
$where_fields,
$new_fields
);
/**
* @todo Can't get duplicating PDFs the right way. The
* page numbers always get screwed up independently from
* duplication because the numbers do not seem to be stored on a
* per-database basis. Would the author of pdf support please
* have a look at it?
*
$get_fields = array('page_descr');
$where_fields = array('db_name' => $source_db);
$new_fields = array('db_name' => $target_db);
$last_id = self::duplicateInfo(
'pdfwork',
'pdf_pages',
$get_fields,
$where_fields,
$new_fields
);
if (isset($last_id) && $last_id >= 0) {
$get_fields = array('x', 'y');
$where_fields = array(
'db_name' => $source_db,
'table_name' => $source_table
);
$new_fields = array(
'db_name' => $target_db,
'table_name' => $target_table,
'pdf_page_number' => $last_id
);
self::duplicateInfo(
'pdfwork',
'table_coords',
$get_fields,
$where_fields,
$new_fields
);
}
*/
return true;
}
/**
* checks if given name is a valid table name,
* currently if not empty, trailing spaces, '.', '/' and '\'
*
* @param string $table_name name to check
* @param boolean $is_backquoted whether this name is used inside backquotes or not
*
* @todo add check for valid chars in filename on current system/os
* @see https://dev.mysql.com/doc/refman/5.0/en/legal-names.html
*
* @return boolean whether the string is valid or not
*/
static function isValidName($table_name, $is_backquoted = false)
{
if ($table_name !== rtrim($table_name)) {
// trailing spaces not allowed even in backquotes
return false;
}
if (strlen($table_name) === 0) {
// zero length
return false;
}
if (! $is_backquoted && $table_name !== trim($table_name)) {
// spaces at the start or in between only allowed inside backquotes
return false;
}
if (! $is_backquoted && preg_match('/^[a-zA-Z0-9_$]+$/', $table_name)) {
// only allow the above regex in unquoted identifiers
// see : https://dev.mysql.com/doc/refman/5.7/en/identifiers.html
return true;
} elseif ($is_backquoted) {
// If backquoted, all characters should be allowed (except w/ trailing spaces)
return true;
}
// If not backquoted and doesn't follow the above regex
return false;
}
/**
* renames table
*
* @param string $new_name new table name
* @param string $new_db new database name
*
* @return bool success
*/
public function rename($new_name, $new_db = null)
{
if ($GLOBALS['dbi']->getLowerCaseNames() === '1') {
$new_name = strtolower($new_name);
}
if (null !== $new_db && $new_db !== $this->getDbName()) {
// Ensure the target is valid
if (! $GLOBALS['dblist']->databases->exists($new_db)) {
$this->errors[] = __('Invalid database:') . ' ' . $new_db;
return false;
}
} else {
$new_db = $this->getDbName();
}
$new_table = new Table($new_name, $new_db);
if ($this->getFullName() === $new_table->getFullName()) {
return true;
}
// Allow whitespaces (not trailing) in $new_name,
// since we are using $backquoted in getting the fullName of table
// below to be used in the query
if (! self::isValidName($new_name, true)) {
$this->errors[] = __('Invalid table name:') . ' '
. $new_table->getFullName();
return false;
}
// If the table is moved to a different database drop its triggers first
$triggers = $this->_dbi->getTriggers(
$this->getDbName(), $this->getName(), ''
);
$handle_triggers = $this->getDbName() != $new_db && $triggers;
if ($handle_triggers) {
foreach ($triggers as $trigger) {
$sql = 'DROP TRIGGER IF EXISTS '
. Util::backquote($this->getDbName())
. '.' . Util::backquote($trigger['name']) . ';';
$this->_dbi->query($sql);
}
}
/*
* tested also for a view, in MySQL 5.0.92, 5.1.55 and 5.5.13
*/
$GLOBALS['sql_query'] = '
RENAME TABLE ' . $this->getFullName(true) . '
TO ' . $new_table->getFullName(true) . ';';
// I don't think a specific error message for views is necessary
if (! $this->_dbi->query($GLOBALS['sql_query'])) {
// Restore triggers in the old database
if ($handle_triggers) {
$this->_dbi->selectDb($this->getDbName());
foreach ($triggers as $trigger) {
$this->_dbi->query($trigger['create']);
}
}
$this->errors[] = sprintf(
__('Failed to rename table %1$s to %2$s!'),
$this->getFullName(),
$new_table->getFullName()
);
return false;
}
$old_name = $this->getName();
$old_db = $this->getDbName();
$this->_name = $new_name;
$this->_db_name = $new_db;
// Renable table in configuration storage
$this->relation->renameTable(
$old_db, $new_db,
$old_name, $new_name
);
$this->messages[] = sprintf(
__('Table %1$s has been renamed to %2$s.'),
htmlspecialchars($old_name),
htmlspecialchars($new_name)
);
return true;
}
/**
* Get all unique columns
*
* returns an array with all columns with unique content, in fact these are
* all columns being single indexed in PRIMARY or UNIQUE
*
* e.g.
* - PRIMARY(id) // id
* - UNIQUE(name) // name
* - PRIMARY(fk_id1, fk_id2) // NONE
* - UNIQUE(x,y) // NONE
*
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
public function getUniqueColumns($backquoted = true, $fullName = true)
{
$sql = $this->_dbi->getTableIndexesSql(
$this->getDbName(),
$this->getName(),
'Non_unique = 0'
);
$uniques = $this->_dbi->fetchResult(
$sql,
array('Key_name', null),
'Column_name'
);
$return = array();
foreach ($uniques as $index) {
if (count($index) > 1) {
continue;
}
if ($fullName) {
$possible_column = $this->getFullName($backquoted) . '.';
} else {
$possible_column = '';
}
if ($backquoted) {
$possible_column .= Util::backquote($index[0]);
} else {
$possible_column .= $index[0];
}
// a column might have a primary and an unique index on it
if (! in_array($possible_column, $return)) {
$return[] = $possible_column;
}
}
return $return;
}
/**
* Formats lists of columns
*
* returns an array with all columns that make use of an index
*
* e.g. index(col1, col2) would return col1, col2
*
* @param array $indexed column data
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
private function _formatColumns(array $indexed, $backquoted, $fullName)
{
$return = array();
foreach ($indexed as $column) {
$return[] = ($fullName ? $this->getFullName($backquoted) . '.' : '')
. ($backquoted ? Util::backquote($column) : $column);
}
return $return;
}
/**
* Get all indexed columns
*
* returns an array with all columns that make use of an index
*
* e.g. index(col1, col2) would return col1, col2
*
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
public function getIndexedColumns($backquoted = true, $fullName = true)
{
$sql = $this->_dbi->getTableIndexesSql(
$this->getDbName(),
$this->getName(),
''
);
$indexed = $this->_dbi->fetchResult($sql, 'Column_name', 'Column_name');
return $this->_formatColumns($indexed, $backquoted, $fullName);
}
/**
* Get all columns
*
* returns an array with all columns
*
* @param bool $backquoted whether to quote name with backticks ``
* @param bool $fullName whether to include full name of the table as a prefix
*
* @return array
*/
public function getColumns($backquoted = true, $fullName = true)
{
$sql = 'SHOW COLUMNS FROM ' . $this->getFullName(true);
$indexed = $this->_dbi->fetchResult($sql, 'Field', 'Field');
return $this->_formatColumns($indexed, $backquoted, $fullName);
}
/**
* Get meta info for fields in table
*
* @return mixed
*/
public function getColumnsMeta()
{
$move_columns_sql_query = sprintf(
'SELECT * FROM %s.%s LIMIT 1',
Util::backquote($this->_db_name),
Util::backquote($this->_name)
);
$move_columns_sql_result = $this->_dbi->tryQuery($move_columns_sql_query);
if ($move_columns_sql_result !== false) {
return $this->_dbi->getFieldsMeta($move_columns_sql_result);
} else {
// unsure how to reproduce but it was seen on the reporting server
return array();
}
}
/**
* Get non-generated columns in table
*
* @param bool $backquoted whether to quote name with backticks ``
*
* @return array
*/
public function getNonGeneratedColumns($backquoted = true)
{
$columns_meta_query = 'SHOW COLUMNS FROM ' . $this->getFullName(true);
$ret = array();
$columns_meta_query_result = $this->_dbi->fetchResult(
$columns_meta_query
);
if ($columns_meta_query_result
&& $columns_meta_query_result !== false
) {
foreach ($columns_meta_query_result as $column) {
$value = $column['Field'];
if ($backquoted === true) {
$value = Util::backquote($value);
}
if ((
strpos($column['Extra'], 'GENERATED') === false
&& strpos($column['Extra'], 'VIRTUAL') === false
) || $column['Extra'] === 'DEFAULT_GENERATED') {
array_push($ret, $value);
}
}
}
return $ret;
}
/**
* Return UI preferences for this table from phpMyAdmin database.
*
* @return array
*/
protected function getUiPrefsFromDb()
{
$cfgRelation = $this->relation->getRelationsParam();
$pma_table = Util::backquote($cfgRelation['db']) . "."
. Util::backquote($cfgRelation['table_uiprefs']);
// Read from phpMyAdmin database
$sql_query = " SELECT `prefs` FROM " . $pma_table
. " WHERE `username` = '" . $GLOBALS['dbi']->escapeString($GLOBALS['cfg']['Server']['user']) . "'"
. " AND `db_name` = '" . $GLOBALS['dbi']->escapeString($this->_db_name) . "'"
. " AND `table_name` = '" . $GLOBALS['dbi']->escapeString($this->_name) . "'";
$row = $this->_dbi->fetchArray($this->relation->queryAsControlUser($sql_query));
if (isset($row[0])) {
return json_decode($row[0], true);
}
return array();
}
/**
* Save this table's UI preferences into phpMyAdmin database.
*
* @return true|Message
*/
protected function saveUiPrefsToDb()
{
$cfgRelation = $this->relation->getRelationsParam();
$pma_table = Util::backquote($cfgRelation['db']) . "."
. Util::backquote($cfgRelation['table_uiprefs']);
$secureDbName = $GLOBALS['dbi']->escapeString($this->_db_name);
$username = $GLOBALS['cfg']['Server']['user'];
$sql_query = " REPLACE INTO " . $pma_table
. " (username, db_name, table_name, prefs) VALUES ('"
. $GLOBALS['dbi']->escapeString($username) . "', '" . $secureDbName
. "', '" . $GLOBALS['dbi']->escapeString($this->_name) . "', '"
. $GLOBALS['dbi']->escapeString(json_encode($this->uiprefs)) . "')";
$success = $this->_dbi->tryQuery($sql_query, DatabaseInterface::CONNECT_CONTROL);
if (!$success) {
$message = Message::error(
__('Could not save table UI preferences!')
);
$message->addMessage(
Message::rawError(
$this->_dbi->getError(DatabaseInterface::CONNECT_CONTROL)
),
'<br /><br />'
);
return $message;
}
// Remove some old rows in table_uiprefs if it exceeds the configured
// maximum rows
$sql_query = 'SELECT COUNT(*) FROM ' . $pma_table;
$rows_count = $this->_dbi->fetchValue($sql_query);
$max_rows = $GLOBALS['cfg']['Server']['MaxTableUiprefs'];
if ($rows_count > $max_rows) {
$num_rows_to_delete = $rows_count - $max_rows;
$sql_query
= ' DELETE FROM ' . $pma_table .
' ORDER BY last_update ASC' .
' LIMIT ' . $num_rows_to_delete;
$success = $this->_dbi->tryQuery(
$sql_query, DatabaseInterface::CONNECT_CONTROL
);
if (!$success) {
$message = Message::error(
sprintf(
__(
'Failed to cleanup table UI preferences (see ' .
'$cfg[\'Servers\'][$i][\'MaxTableUiprefs\'] %s)'
),
Util::showDocu('config', 'cfg_Servers_MaxTableUiprefs')
)
);
$message->addMessage(
Message::rawError(
$this->_dbi->getError(DatabaseInterface::CONNECT_CONTROL)
),
'<br /><br />'
);
return $message;
}
}
return true;
}
/**
* Loads the UI preferences for this table.
* If pmadb and table_uiprefs is set, it will load the UI preferences from
* phpMyAdmin database.
*
* @return void
*/
protected function loadUiPrefs()
{
$cfgRelation = $this->relation->getRelationsParam();
$server_id = $GLOBALS['server'];
// set session variable if it's still undefined
if (!isset($_SESSION['tmpval']['table_uiprefs'][$server_id][$this->_db_name][$this->_name])) {
// check whether we can get from pmadb
$_SESSION['tmpval']['table_uiprefs'][$server_id][$this->_db_name]
[$this->_name] = $cfgRelation['uiprefswork']
? $this->getUiPrefsFromDb()
: array();
}
$this->uiprefs =& $_SESSION['tmpval']['table_uiprefs'][$server_id]
[$this->_db_name][$this->_name];
}
/**
* Get a property from UI preferences.
* Return false if the property is not found.
* Available property:
* - PROP_SORTED_COLUMN
* - PROP_COLUMN_ORDER
* - PROP_COLUMN_VISIB
*
* @param string $property property
*
* @return mixed
*/
public function getUiProp($property)
{
if (! isset($this->uiprefs)) {
$this->loadUiPrefs();
}
// do checking based on property
if ($property == self::PROP_SORTED_COLUMN) {
if (!isset($this->uiprefs[$property])) {
return false;
}
if (!isset($_POST['discard_remembered_sort'])) {
// check if the column name exists in this table
$tmp = explode(' ', $this->uiprefs[$property]);
$colname = $tmp[0];
//remove backquoting from colname
$colname = str_replace('`', '', $colname);
//get the available column name without backquoting
$avail_columns = $this->getColumns(false);
foreach ($avail_columns as $each_col) {
// check if $each_col ends with $colname
if (substr_compare(
$each_col,
$colname,
mb_strlen($each_col) - mb_strlen($colname)
) === 0
) {
return $this->uiprefs[$property];
}
}
}
// remove the property, since it no longer exists in database
$this->removeUiProp($property);
return false;
}
if ($property == self::PROP_COLUMN_ORDER
|| $property == self::PROP_COLUMN_VISIB
) {
if ($this->isView() || !isset($this->uiprefs[$property])) {
return false;
}
// check if the table has not been modified
if ($this->getStatusInfo('Create_time') == $this->uiprefs['CREATE_TIME']
) {
return array_map('intval', $this->uiprefs[$property]);
}
// remove the property, since the table has been modified
$this->removeUiProp($property);
return false;
}
// default behaviour for other property:
return isset($this->uiprefs[$property]) ? $this->uiprefs[$property] : false;
}
/**
* Set a property from UI preferences.
* If pmadb and table_uiprefs is set, it will save the UI preferences to
* phpMyAdmin database.
* Available property:
* - PROP_SORTED_COLUMN
* - PROP_COLUMN_ORDER
* - PROP_COLUMN_VISIB
*
* @param string $property Property
* @param mixed $value Value for the property
* @param string $table_create_time Needed for PROP_COLUMN_ORDER
* and PROP_COLUMN_VISIB
*
* @return boolean|Message
*/
public function setUiProp($property, $value, $table_create_time = null)
{
if (! isset($this->uiprefs)) {
$this->loadUiPrefs();
}
// we want to save the create time if the property is PROP_COLUMN_ORDER
if (! $this->isView()
&& ($property == self::PROP_COLUMN_ORDER
|| $property == self::PROP_COLUMN_VISIB)
) {
$curr_create_time = $this->getStatusInfo('CREATE_TIME');
if (isset($table_create_time)
&& $table_create_time == $curr_create_time
) {
$this->uiprefs['CREATE_TIME'] = $curr_create_time;
} else {
// there is no $table_create_time, or
// supplied $table_create_time is older than current create time,
// so don't save
return Message::error(
sprintf(
__(
'Cannot save UI property "%s". The changes made will ' .
'not be persistent after you refresh this page. ' .
'Please check if the table structure has been changed.'
),
$property
)
);
}
}
// save the value
$this->uiprefs[$property] = $value;
// check if pmadb is set
$cfgRelation = $this->relation->getRelationsParam();
if ($cfgRelation['uiprefswork']) {
return $this->saveUiprefsToDb();
}
return true;
}
/**
* Remove a property from UI preferences.
*
* @param string $property the property
*
* @return true|Message
*/
public function removeUiProp($property)
{
if (! isset($this->uiprefs)) {
$this->loadUiPrefs();
}
if (isset($this->uiprefs[$property])) {
unset($this->uiprefs[$property]);
// check if pmadb is set
$cfgRelation = $this->relation->getRelationsParam();
if ($cfgRelation['uiprefswork']) {
return $this->saveUiprefsToDb();
}
}
return true;
}
/**
* Get all column names which are MySQL reserved words
*
* @return array
* @access public
*/
public function getReservedColumnNames()
{
$columns = $this->getColumns(false);
$return = array();
foreach ($columns as $column) {
$temp = explode('.', $column);
$column_name = $temp[2];
if (Context::isKeyword($column_name, true)) {
$return[] = $column_name;
}
}
return $return;
}
/**
* Function to get the name and type of the columns of a table
*
* @return array
*/
public function getNameAndTypeOfTheColumns()
{
$columns = array();
foreach ($this->_dbi->getColumnsFull(
$this->_db_name, $this->_name
) as $row) {
if (preg_match('@^(set|enum)\((.+)\)$@i', $row['Type'], $tmp)) {
$tmp[2] = mb_substr(
preg_replace('@([^,])\'\'@', '\\1\\\'', ',' . $tmp[2]), 1
);
$columns[$row['Field']] = $tmp[1] . '('
. str_replace(',', ', ', $tmp[2]) . ')';
} else {
$columns[$row['Field']] = $row['Type'];
}
}
return $columns;
}
/**
* Get index with index name
*
* @param string $index Index name
*
* @return Index
*/
public function getIndex($index)
{
return Index::singleton($this->_db_name, $this->_name, $index);
}
/**
* Function to get the sql query for index creation or edit
*
* @param Index $index current index
* @param bool &$error whether error occurred or not
*
* @return string
*/
public function getSqlQueryForIndexCreateOrEdit($index, &$error)
{
// $sql_query is the one displayed in the query box
$sql_query = sprintf(
'ALTER TABLE %s.%s',
Util::backquote($this->_db_name),
Util::backquote($this->_name)
);
// Drops the old index
if (! empty($_POST['old_index'])) {
if ($_POST['old_index'] == 'PRIMARY') {
$sql_query .= ' DROP PRIMARY KEY,';
} else {
$sql_query .= sprintf(
' DROP INDEX %s,',
Util::backquote($_POST['old_index'])
);
}
} // end if
// Builds the new one
switch ($index->getChoice()) {
case 'PRIMARY':
if ($index->getName() == '') {
$index->setName('PRIMARY');
} elseif ($index->getName() != 'PRIMARY') {
$error = Message::error(
__('The name of the primary key must be "PRIMARY"!')
);
}
$sql_query .= ' ADD PRIMARY KEY';
break;
case 'FULLTEXT':
case 'UNIQUE':
case 'INDEX':
case 'SPATIAL':
if ($index->getName() == 'PRIMARY') {
$error = Message::error(
__('Can\'t rename index to PRIMARY!')
);
}
$sql_query .= sprintf(
' ADD %s ',
$index->getChoice()
);
if ($index->getName()) {
$sql_query .= Util::backquote($index->getName());
}
break;
} // end switch
$index_fields = array();
foreach ($index->getColumns() as $key => $column) {
$index_fields[$key] = Util::backquote($column->getName());
if ($column->getSubPart()) {
$index_fields[$key] .= '(' . $column->getSubPart() . ')';
}
} // end while
if (empty($index_fields)) {
$error = Message::error(__('No index parts defined!'));
} else {
$sql_query .= ' (' . implode(', ', $index_fields) . ')';
}
$keyBlockSizes = $index->getKeyBlockSize();
if (! empty($keyBlockSizes)) {
$sql_query .= sprintf(
' KEY_BLOCK_SIZE = %s',
$GLOBALS['dbi']->escapeString($keyBlockSizes)
);
}
// specifying index type is allowed only for primary, unique and index only
// TokuDB is using Fractal Tree, Using Type is not useless
// Ref: https://mariadb.com/kb/en/mariadb/storage-engine-index-types/
$type = $index->getType();
if ($index->getChoice() != 'SPATIAL'
&& $index->getChoice() != 'FULLTEXT'
&& in_array($type, Index::getIndexTypes())
&& ! $this->isEngine(array('TOKUDB'))
) {
$sql_query .= ' USING ' . $type;
}
$parser = $index->getParser();
if ($index->getChoice() == 'FULLTEXT' && ! empty($parser)) {
$sql_query .= ' WITH PARSER ' . $GLOBALS['dbi']->escapeString($parser);
}
$comment = $index->getComment();
if (! empty($comment)) {
$sql_query .= sprintf(
" COMMENT '%s'",
$GLOBALS['dbi']->escapeString($comment)
);
}
$sql_query .= ';';
return $sql_query;
}
/**
* Function to handle update for display field
*
* @param string $display_field display field
* @param array $cfgRelation configuration relation
*
* @return boolean True on update succeed or False on failure
*/
public function updateDisplayField($display_field, array $cfgRelation)
{
$upd_query = false;
if ($display_field == '') {
$upd_query = 'DELETE FROM '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.' . Util::backquote($cfgRelation['table_info'])
. ' WHERE db_name = \''
. $GLOBALS['dbi']->escapeString($this->_db_name) . '\''
. ' AND table_name = \''
. $GLOBALS['dbi']->escapeString($this->_name) . '\'';
} else {
$upd_query = 'REPLACE INTO '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.' . Util::backquote($cfgRelation['table_info'])
. '(db_name, table_name, display_field) VALUES('
. '\'' . $GLOBALS['dbi']->escapeString($this->_db_name) . '\','
. '\'' . $GLOBALS['dbi']->escapeString($this->_name) . '\','
. '\'' . $GLOBALS['dbi']->escapeString($display_field) . '\')';
}
if ($upd_query) {
$this->_dbi->query(
$upd_query,
DatabaseInterface::CONNECT_CONTROL,
0,
false
);
return true;
}
return false;
}
/**
* Function to get update query for updating internal relations
*
* @param array $multi_edit_columns_name multi edit column names
* @param array $destination_db destination tables
* @param array $destination_table destination tables
* @param array $destination_column destination columns
* @param array $cfgRelation configuration relation
* @param array|null $existrel db, table, column
*
* @return boolean
*/
public function updateInternalRelations(array $multi_edit_columns_name,
array $destination_db, array $destination_table, array $destination_column,
array $cfgRelation, $existrel
) {
$updated = false;
foreach ($destination_db as $master_field_md5 => $foreign_db) {
$upd_query = null;
// Map the fieldname's md5 back to its real name
$master_field = $multi_edit_columns_name[$master_field_md5];
$foreign_table = $destination_table[$master_field_md5];
$foreign_field = $destination_column[$master_field_md5];
if (! empty($foreign_db)
&& ! empty($foreign_table)
&& ! empty($foreign_field)
) {
if (! isset($existrel[$master_field])) {
$upd_query = 'INSERT INTO '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.' . Util::backquote($cfgRelation['relation'])
. '(master_db, master_table, master_field, foreign_db,'
. ' foreign_table, foreign_field)'
. ' values('
. '\'' . $GLOBALS['dbi']->escapeString($this->_db_name) . '\', '
. '\'' . $GLOBALS['dbi']->escapeString($this->_name) . '\', '
. '\'' . $GLOBALS['dbi']->escapeString($master_field) . '\', '
. '\'' . $GLOBALS['dbi']->escapeString($foreign_db) . '\', '
. '\'' . $GLOBALS['dbi']->escapeString($foreign_table) . '\','
. '\'' . $GLOBALS['dbi']->escapeString($foreign_field) . '\')';
} elseif ($existrel[$master_field]['foreign_db'] != $foreign_db
|| $existrel[$master_field]['foreign_table'] != $foreign_table
|| $existrel[$master_field]['foreign_field'] != $foreign_field
) {
$upd_query = 'UPDATE '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.' . Util::backquote($cfgRelation['relation'])
. ' SET foreign_db = \''
. $GLOBALS['dbi']->escapeString($foreign_db) . '\', '
. ' foreign_table = \''
. $GLOBALS['dbi']->escapeString($foreign_table) . '\', '
. ' foreign_field = \''
. $GLOBALS['dbi']->escapeString($foreign_field) . '\' '
. ' WHERE master_db = \''
. $GLOBALS['dbi']->escapeString($this->_db_name) . '\''
. ' AND master_table = \''
. $GLOBALS['dbi']->escapeString($this->_name) . '\''
. ' AND master_field = \''
. $GLOBALS['dbi']->escapeString($master_field) . '\'';
} // end if... else....
} elseif (isset($existrel[$master_field])) {
$upd_query = 'DELETE FROM '
. Util::backquote($GLOBALS['cfgRelation']['db'])
. '.' . Util::backquote($cfgRelation['relation'])
. ' WHERE master_db = \''
. $GLOBALS['dbi']->escapeString($this->_db_name) . '\''
. ' AND master_table = \''
. $GLOBALS['dbi']->escapeString($this->_name) . '\''
. ' AND master_field = \''
. $GLOBALS['dbi']->escapeString($master_field) . '\'';
} // end if... else....
if (isset($upd_query)) {
$this->_dbi->query(
$upd_query,
DatabaseInterface::CONNECT_CONTROL,
0,
false
);
$updated = true;
}
}
return $updated;
}
/**
* Function to handle foreign key updates
*
* @param array $destination_foreign_db destination foreign database
* @param array $multi_edit_columns_name multi edit column names
* @param array $destination_foreign_table destination foreign table
* @param array $destination_foreign_column destination foreign column
* @param array $options_array options array
* @param string $table current table
* @param array $existrel_foreign db, table, column
*
* @return array
*/
public function updateForeignKeys(array $destination_foreign_db,
array $multi_edit_columns_name, array $destination_foreign_table,
array $destination_foreign_column, array $options_array, $table, array $existrel_foreign
) {
$html_output = '';
$preview_sql_data = '';
$display_query = '';
$seen_error = false;
foreach ($destination_foreign_db as $master_field_md5 => $foreign_db) {
$create = false;
$drop = false;
// Map the fieldname's md5 back to its real name
$master_field = $multi_edit_columns_name[$master_field_md5];
$foreign_table = $destination_foreign_table[$master_field_md5];
$foreign_field = $destination_foreign_column[$master_field_md5];
if (isset($existrel_foreign[$master_field_md5]['ref_db_name'])) {
$ref_db_name = $existrel_foreign[$master_field_md5]['ref_db_name'];
} else {
$ref_db_name = $GLOBALS['db'];
}
$empty_fields = false;
foreach ($master_field as $key => $one_field) {
if ((! empty($one_field) && empty($foreign_field[$key]))
|| (empty($one_field) && ! empty($foreign_field[$key]))
) {
$empty_fields = true;
}
if (empty($one_field) && empty($foreign_field[$key])) {
unset($master_field[$key]);
unset($foreign_field[$key]);
}
}
if (! empty($foreign_db)
&& ! empty($foreign_table)
&& ! $empty_fields
) {
if (isset($existrel_foreign[$master_field_md5])) {
$constraint_name
= $existrel_foreign[$master_field_md5]['constraint'];
$on_delete = !empty(
$existrel_foreign[$master_field_md5]['on_delete']
)
? $existrel_foreign[$master_field_md5]['on_delete']
: 'RESTRICT';
$on_update = ! empty(
$existrel_foreign[$master_field_md5]['on_update']
)
? $existrel_foreign[$master_field_md5]['on_update']
: 'RESTRICT';
if ($ref_db_name != $foreign_db
|| $existrel_foreign[$master_field_md5]['ref_table_name'] != $foreign_table
|| $existrel_foreign[$master_field_md5]['ref_index_list'] != $foreign_field
|| $existrel_foreign[$master_field_md5]['index_list'] != $master_field
|| $_POST['constraint_name'][$master_field_md5] != $constraint_name
|| ($_POST['on_delete'][$master_field_md5] != $on_delete)
|| ($_POST['on_update'][$master_field_md5] != $on_update)
) {
// another foreign key is already defined for this field
// or an option has been changed for ON DELETE or ON UPDATE
$drop = true;
$create = true;
} // end if... else....
} else {
// no key defined for this field(s)
$create = true;
}
} elseif (isset($existrel_foreign[$master_field_md5])) {
$drop = true;
} // end if... else....
$tmp_error_drop = false;
if ($drop) {
$drop_query = 'ALTER TABLE ' . Util::backquote($table)
. ' DROP FOREIGN KEY '
. Util::backquote(
$existrel_foreign[$master_field_md5]['constraint']
)
. ';';
if (! isset($_POST['preview_sql'])) {
$display_query .= $drop_query . "\n";
$this->_dbi->tryQuery($drop_query);
$tmp_error_drop = $this->_dbi->getError();
if (! empty($tmp_error_drop)) {
$seen_error = true;
$html_output .= Util::mysqlDie(
$tmp_error_drop, $drop_query, false, '', false
);
continue;
}
} else {
$preview_sql_data .= $drop_query . "\n";
}
}
$tmp_error_create = false;
if (!$create) {
continue;
}
$create_query = $this->_getSQLToCreateForeignKey(
$table, $master_field, $foreign_db, $foreign_table, $foreign_field,
$_POST['constraint_name'][$master_field_md5],
$options_array[$_POST['on_delete'][$master_field_md5]],
$options_array[$_POST['on_update'][$master_field_md5]]
);
if (! isset($_POST['preview_sql'])) {
$display_query .= $create_query . "\n";
$this->_dbi->tryQuery($create_query);
$tmp_error_create = $this->_dbi->getError();
if (! empty($tmp_error_create)) {
$seen_error = true;
if (substr($tmp_error_create, 1, 4) == '1005') {
$message = Message::error(
__(
'Error creating foreign key on %1$s (check data ' .
'types)'
)
);
$message->addParam(implode(', ', $master_field));
$html_output .= $message->getDisplay();
} else {
$html_output .= Util::mysqlDie(
$tmp_error_create, $create_query, false, '', false
);
}
$html_output .= Util::showMySQLDocu(
'InnoDB_foreign_key_constraints'
) . "\n";
}
} else {
$preview_sql_data .= $create_query . "\n";
}
// this is an alteration and the old constraint has been dropped
// without creation of a new one
if ($drop && $create && empty($tmp_error_drop)
&& ! empty($tmp_error_create)
) {
// a rollback may be better here
$sql_query_recreate = '# Restoring the dropped constraint...' . "\n";
$sql_query_recreate .= $this->_getSQLToCreateForeignKey(
$table,
$master_field,
$existrel_foreign[$master_field_md5]['ref_db_name'],
$existrel_foreign[$master_field_md5]['ref_table_name'],
$existrel_foreign[$master_field_md5]['ref_index_list'],
$existrel_foreign[$master_field_md5]['constraint'],
$options_array[$existrel_foreign[$master_field_md5]['on_delete']],
$options_array[$existrel_foreign[$master_field_md5]['on_update']]
);
if (! isset($_POST['preview_sql'])) {
$display_query .= $sql_query_recreate . "\n";
$this->_dbi->tryQuery($sql_query_recreate);
} else {
$preview_sql_data .= $sql_query_recreate;
}
}
} // end foreach
return array(
$html_output,
$preview_sql_data,
$display_query,
$seen_error
);
}
/**
* Returns the SQL query for foreign key constraint creation
*
* @param string $table table name
* @param array $field field names
* @param string $foreignDb foreign database name
* @param string $foreignTable foreign table name
* @param array $foreignField foreign field names
* @param string $name name of the constraint
* @param string $onDelete on delete action
* @param string $onUpdate on update action
*
* @return string SQL query for foreign key constraint creation
*/
private function _getSQLToCreateForeignKey(
$table,
array $field,
$foreignDb,
$foreignTable,
array $foreignField,
$name = null,
$onDelete = null,
$onUpdate = null
) {
$sql_query = 'ALTER TABLE ' . Util::backquote($table) . ' ADD ';
// if user entered a constraint name
if (! empty($name)) {
$sql_query .= ' CONSTRAINT ' . Util::backquote($name);
}
foreach ($field as $key => $one_field) {
$field[$key] = Util::backquote($one_field);
}
foreach ($foreignField as $key => $one_field) {
$foreignField[$key] = Util::backquote($one_field);
}
$sql_query .= ' FOREIGN KEY (' . implode(', ', $field) . ') REFERENCES '
. ($this->_db_name != $foreignDb
? Util::backquote($foreignDb) . '.' : '')
. Util::backquote($foreignTable)
. '(' . implode(', ', $foreignField) . ')';
if (! empty($onDelete)) {
$sql_query .= ' ON DELETE ' . $onDelete;
}
if (! empty($onUpdate)) {
$sql_query .= ' ON UPDATE ' . $onUpdate;
}
$sql_query .= ';';
return $sql_query;
}
/**
* Returns the generation expression for virtual columns
*
* @param string $column name of the column
*
* @return array|boolean associative array of column name and their expressions
* or false on failure
*/
public function getColumnGenerationExpression($column = null)
{
$serverType = Util::getServerType();
if ($serverType == 'MySQL'
&& $GLOBALS['dbi']->getVersion() > 50705
&& ! $GLOBALS['cfg']['Server']['DisableIS']
) {
$sql
= "SELECT
`COLUMN_NAME` AS `Field`,
`GENERATION_EXPRESSION` AS `Expression`
FROM
`information_schema`.`COLUMNS`
WHERE
`TABLE_SCHEMA` = '" . $GLOBALS['dbi']->escapeString($this->_db_name) . "'
AND `TABLE_NAME` = '" . $GLOBALS['dbi']->escapeString($this->_name) . "'";
if ($column != null) {
$sql .= " AND `COLUMN_NAME` = '" . $GLOBALS['dbi']->escapeString($column)
. "'";
}
$columns = $this->_dbi->fetchResult($sql, 'Field', 'Expression');
return $columns;
}
$createTable = $this->showCreate();
if (!$createTable) {
return false;
}
$parser = new Parser($createTable);
/**
* @var \PhpMyAdmin\SqlParser\Statements\CreateStatement $stmt
*/
$stmt = $parser->statements[0];
$fields = TableUtils::getFields($stmt);
if ($column != null) {
$expression = isset($fields[$column]['expr']) ?
substr($fields[$column]['expr'], 1, -1) : '';
return array($column => $expression);
}
$ret = array();
foreach ($fields as $field => $options) {
if (isset($options['expr'])) {
$ret[$field] = substr($options['expr'], 1, -1);
}
}
return $ret;
}
/**
* Returns the CREATE statement for this table
*
* @return mixed
*/
public function showCreate()
{
return $this->_dbi->fetchValue(
'SHOW CREATE TABLE ' . Util::backquote($this->_db_name) . '.'
. Util::backquote($this->_name),
0, 1
);
}
/**
* Returns the real row count for a table
*
* @return number
*/
public function getRealRowCountTable()
{
// SQL query to get row count for a table.
$result = $this->_dbi->fetchSingleRow(
sprintf(
'SELECT COUNT(*) AS %s FROM %s.%s',
Util::backquote('row_count'),
Util::backquote($this->_db_name),
Util::backquote($this->_name)
)
);
return $result['row_count'];
}
/**
* Get columns with indexes
*
* @param int $types types bitmask
*
* @return array an array of columns
*/
public function getColumnsWithIndex($types)
{
$columns_with_index = array();
foreach (
Index::getFromTableByChoice(
$this->_name,
$this->_db_name,
$types
) as $index
) {
$columns = $index->getColumns();
foreach ($columns as $column_name => $dummy) {
$columns_with_index[] = $column_name;
}
}
return $columns_with_index;
}
}
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