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Table.class.php
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Holds the PMA_Table class
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/**
* Handles everything related to tables
*
* @todo make use of PMA_Message and PMA_Error
* @package PhpMyAdmin
*/
class PMA_Table
{
/**
* UI preferences properties
*/
const PROP_SORTED_COLUMN = 'sorted_col';
const PROP_COLUMN_ORDER = 'col_order';
const PROP_COLUMN_VISIB = 'col_visib';
static public $cache = array();
/**
* @var string table name
*/
var $name = '';
/**
* @var string database name
*/
var $db_name = '';
/**
* @var string engine (innodb, myisam, bdb, ...)
*/
var $engine = '';
/**
* @var string type (view, base table, system view)
*/
var $type = '';
/**
* @var array settings
*/
var $settings = array();
/**
* @var array UI preferences
*/
var $uiprefs;
/**
* @var array errors occurred
*/
var $errors = array();
/**
* @var array messages
*/
var $messages = array();
/**
* Constructor
*
* @param string $table_name table name
* @param string $db_name database name
*/
function __construct($table_name, $db_name)
{
$this->setName($table_name);
$this->setDbName($db_name);
}
/**
* returns table name
*
* @see PMA_Table::getName()
* @return string table name
*/
function __toString()
{
return $this->getName();
}
/**
* return the last error
*
* @return string the last error
*/
function getLastError()
{
return end($this->errors);
}
/**
* return the last message
*
* @return string the last message
*/
function getLastMessage()
{
return end($this->messages);
}
/**
* sets table name
*
* @param string $table_name new table name
*
* @return void
*/
function setName($table_name)
{
$this->name = $table_name;
}
/**
* returns table name
*
* @param boolean $backquoted whether to quote name with backticks ``
*
* @return string table name
*/
function getName($backquoted = false)
{
if ($backquoted) {
return PMA_Util::backquote($this->name);
}
return $this->name;
}
/**
* sets database name for this table
*
* @param string $db_name database name
*
* @return void
*/
function setDbName($db_name)
{
$this->db_name = $db_name;
}
/**
* returns database name for this table
*
* @param boolean $backquoted whether to quote name with backticks ``
*
* @return string database name for this table
*/
function getDbName($backquoted = false)
{
if ($backquoted) {
return PMA_Util::backquote($this->db_name);
}
return $this->db_name;
}
/**
* returns full name for table, including database name
*
* @param boolean $backquoted whether to quote name with backticks ``
*
* @return string
*/
function getFullName($backquoted = false)
{
return $this->getDbName($backquoted) . '.'
. $this->getName($backquoted);
}
/**
* returns whether the table is actually a view
*
* @param string $db database
* @param string $table table
*
* @return boolean whether the given is a view
*/
static public function isView($db = null, $table = null)
{
if (empty($db) || empty($table)) {
return false;
}
// use cached data or load information with SHOW command
if (isset(PMA_Table::$cache[$db][$table])
|| $GLOBALS['cfg']['Server']['DisableIS']
) {
$type = PMA_Table::sGetStatusInfo($db, $table, '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 = $GLOBALS['dbi']->fetchResult(
"SELECT TABLE_NAME
FROM information_schema.VIEWS
WHERE TABLE_SCHEMA = '" . PMA_Util::sqlAddSlashes($db) . "'
AND TABLE_NAME = '" . PMA_Util::sqlAddSlashes($table) . "'"
);
return $result ? true : false;
}
/**
* Returns whether the table is actually an updatable view
*
* @param string $db database
* @param string $table table
*
* @return boolean whether the given is an updatable view
*/
static public function isUpdatableView($db = null, $table = null)
{
if (empty($db) || empty($table)) {
return false;
}
$result = $GLOBALS['dbi']->fetchResult(
"SELECT TABLE_NAME
FROM information_schema.VIEWS
WHERE TABLE_SCHEMA = '" . PMA_Util::sqlAddSlashes($db) . "'
AND TABLE_NAME = '" . PMA_Util::sqlAddSlashes($table) . "'
AND IS_UPDATABLE = 'YES'"
);
return $result ? true : false;
}
/**
* Returns the analysis of 'SHOW CREATE TABLE' query for the table.
* In case of a view, the values are taken from the information_schema.
*
* @param string $db database
* @param string $table table
*
* @return array analysis of 'SHOW CREATE TABLE' query for the table
*/
static public function analyzeStructure($db = null, $table = null)
{
if (empty($db) || empty($table)) {
return false;
}
$analyzed_sql = array();
if (self::isView($db, $table)) {
// For a view, 'SHOW CREATE TABLE' returns the definition,
// but the structure of the view. So, we try to mock
// the result of analyzing 'SHOW CREATE TABLE' query.
$analyzed_sql[0] = array();
$analyzed_sql[0]['create_table_fields'] = array();
$results = $GLOBALS['dbi']->fetchResult(
"SELECT COLUMN_NAME, DATA_TYPE
FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA = '" . PMA_Util::sqlAddSlashes($db) . "'
AND TABLE_NAME = '" . PMA_Util::sqlAddSlashes($table) . "'"
);
foreach ($results as $result) {
$analyzed_sql[0]['create_table_fields'][$result['COLUMN_NAME']]
= array(
'type' => /*overload*/mb_strtoupper($result['DATA_TYPE'])
);
}
} else {
$show_create_table = $GLOBALS['dbi']->fetchValue(
'SHOW CREATE TABLE '
. PMA_Util::backquote($db)
. '.' . PMA_Util::backquote($table),
0,
1
);
$analyzed_sql = PMA_SQP_analyze(PMA_SQP_parse($show_create_table));
}
return $analyzed_sql;
}
/**
* sets given $value for given $param
*
* @param string $param name
* @param mixed $value value
*
* @return void
*/
function set($param, $value)
{
$this->settings[$param] = $value;
}
/**
* returns value for given setting/param
*
* @param string $param name for value to return
*
* @return mixed value for $param
*/
function get($param)
{
if (isset($this->settings[$param])) {
return $this->settings[$param];
}
return null;
}
/**
* Checks if this is a merge table
*
* If the ENGINE of the table is MERGE or MRG_MYISAM (alias),
* this is a merge table.
*
* @param string $db the database name
* @param string $table the table name
*
* @return boolean true if it is a merge table
*/
static public function isMerge($db = null, $table = null)
{
$engine = null;
// if called static, with parameters
if (! empty($db) && ! empty($table)) {
$engine = PMA_Table::sGetStatusInfo(
$db, $table, 'ENGINE', null, true
);
}
// did we get engine?
if (empty($engine)) {
return false;
}
// any of known merge engines?
return in_array(
/*overload*/mb_strtoupper($engine),
array('MERGE', 'MRG_MYISAM')
);
}
/**
* Returns full table status info, or specific if $info provided
* this info is collected from information_schema
*
* @param string $db database name
* @param string $table table name
* @param string $info specific information to be fetched
* @param boolean $force_read read new rather than serving from cache
* @param boolean $disable_error if true, disables error message
*
* @todo DatabaseInterface::getTablesFull needs to be merged
* somehow into this class or at least better documented
*
* @return mixed
*/
static public function sGetStatusInfo($db, $table, $info = null,
$force_read = false, $disable_error = false
) {
if (! empty($_SESSION['is_multi_query'])) {
$disable_error = true;
}
// sometimes there is only one entry (ExactRows) so
// we have to get the table's details
if (! isset(PMA_Table::$cache[$db][$table])
|| $force_read
|| count(PMA_Table::$cache[$db][$table]) == 1
) {
$GLOBALS['dbi']->getTablesFull($db, $table);
}
if (! isset(PMA_Table::$cache[$db][$table])) {
// 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 === $info) {
return PMA_Table::$cache[$db][$table];
}
// array_key_exists allows for null values
if (!array_key_exists($info, PMA_Table::$cache[$db][$table])) {
if (! $disable_error) {
trigger_error(
__('Unknown table status:') . ' ' . $info,
E_USER_WARNING
);
}
return false;
}
return PMA_Table::$cache[$db][$table][$info];
}
/**
* 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 $move_to new position for column
*
* @todo move into class PMA_Column
* @todo on the interface, some js to clear the default value when the
* default current_timestamp is checked
*
* @return string field specification
*/
static function generateFieldSpec($name, $type, $length = '',
$attribute = '', $collation = '', $null = false,
$default_type = 'USER_DEFINED', $default_value = '', $extra = '',
$comment = '', $move_to = ''
) {
$is_timestamp = /*overload*/mb_strpos(
/*overload*/mb_strtoupper($type),
'TIMESTAMP'
) !== false;
$query = PMA_Util::backquote($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 http://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 ($length != '' && ! preg_match($pattern, $type)) {
$query .= '(' . $length . ')';
}
if ($attribute != '') {
$query .= ' ' . $attribute;
}
$matches = preg_match(
'@^(TINYTEXT|TEXT|MEDIUMTEXT|LONGTEXT|VARCHAR|CHAR|ENUM|SET)$@i',
$type
);
if (! empty($collation) && $collation != 'NULL' && $matches) {
$query .= PMA_generateCharsetQueryPart($collation);
}
if ($null !== false) {
if ($null == 'NULL') {
$query .= ' NULL';
} else {
$query .= ' NOT NULL';
}
}
switch ($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
$query .= ' DEFAULT \''
. PMA_Util::sqlAddSlashes($default_value) . '\'';
}
} elseif ($type == 'BINARY' || $type == 'VARBINARY') {
$query .= ' DEFAULT 0x' . $default_value;
} else {
$query .= ' DEFAULT \''
. PMA_Util::sqlAddSlashes($default_value) . '\'';
}
break;
case 'NULL' :
// If user uncheck null checkbox and not change default value null,
// default value will be ignored.
if ($null !== false && $null !== 'NULL') {
break;
}
// else fall-through intended, no break here
case 'CURRENT_TIMESTAMP' :
$query .= ' DEFAULT ' . $default_type;
break;
case 'NONE' :
default :
break;
}
if (!empty($extra)) {
$query .= ' ' . $extra;
}
if (!empty($comment)) {
$query .= " COMMENT '" . PMA_Util::sqlAddSlashes($comment) . "'";
}
// move column
if ($move_to == '-first') { // dash can't appear as part of column name
$query .= ' FIRST';
} elseif ($move_to != '') {
$query .= ' AFTER ' . PMA_Util::backquote($move_to);
}
return $query;
} // end function
/**
* Counts and returns (or displays) the number of records in a table
*
* @param string $db the current database name
* @param string $table the current table name
* @param bool $force_exact whether to force an exact count
* @param bool $is_view whether the table is a view
*
* @return mixed the number of records if "retain" param is true,
* otherwise true
*/
static public function countRecords($db, $table, $force_exact = false,
$is_view = null
) {
if (isset(PMA_Table::$cache[$db][$table]['ExactRows'])) {
$row_count = PMA_Table::$cache[$db][$table]['ExactRows'];
} else {
$row_count = false;
if (null === $is_view) {
$is_view = PMA_Table::isView($db, $table);
}
if (! $force_exact) {
if (! isset(PMA_Table::$cache[$db][$table]['Rows']) && ! $is_view) {
$tmp_tables = $GLOBALS['dbi']->getTablesFull($db, $table);
if (isset($tmp_tables[$table])) {
PMA_Table::$cache[$db][$table] = $tmp_tables[$table];
}
}
if (isset(PMA_Table::$cache[$db][$table]['Rows'])) {
$row_count = PMA_Table::$cache[$db][$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']
) {
// Make an exception for views in I_S and D_D schema in
// Drizzle, as these map to in-memory data and should execute
// fast enough
if (! $is_view
|| (PMA_DRIZZLE && $GLOBALS['dbi']->isSystemSchema($db))
) {
$row_count = $GLOBALS['dbi']->fetchValue(
'SELECT COUNT(*) FROM ' . PMA_Util::backquote($db) . '.'
. PMA_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 = 0;
} 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 = $GLOBALS['dbi']->tryQuery(
'SELECT 1 FROM ' . PMA_Util::backquote($db) . '.'
. PMA_Util::backquote($table) . ' LIMIT '
. $GLOBALS['cfg']['MaxExactCountViews'],
null,
PMA_DatabaseInterface::QUERY_STORE
);
if (!$GLOBALS['dbi']->getError()) {
$row_count = $GLOBALS['dbi']->numRows($result);
$GLOBALS['dbi']->freeResult($result);
}
}
}
if ($row_count) {
PMA_Table::$cache[$db][$table]['ExactRows'] = $row_count;
}
}
}
return $row_count;
} // end of the 'PMA_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 $move_to new position for column
*
* @see PMA_Table::generateFieldSpec()
*
* @return string field specification
*/
static public function generateAlter($oldcol, $newcol, $type, $length,
$attribute, $collation, $null, $default_type, $default_value,
$extra, $comment, $move_to
) {
return PMA_Util::backquote($oldcol) . ' '
. PMA_Table::generateFieldSpec(
$newcol, $type, $length, $attribute,
$collation, $null, $default_type, $default_value, $extra,
$comment, $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 $new_fields Which fields will be used as new VALUES.
* These are the important keys which differ
* from the old entry
* (array('FIELDNAME' => 'NEW FIELDVALUE'))
*
* @global relation variable
*
* @return int|true
*/
static public function duplicateInfo($work, $pma_table, $get_fields,
$where_fields, $new_fields
) {
$last_id = -1;
if (isset($GLOBALS['cfgRelation']) && $GLOBALS['cfgRelation'][$work]) {
$select_parts = array();
$row_fields = array();
foreach ($get_fields as $get_field) {
$select_parts[] = PMA_Util::backquote($get_field);
$row_fields[$get_field] = 'cc';
}
$where_parts = array();
foreach ($where_fields as $_where => $_value) {
$where_parts[] = PMA_Util::backquote($_where) . ' = \''
. PMA_Util::sqlAddSlashes($_value) . '\'';
}
$new_parts = array();
$new_value_parts = array();
foreach ($new_fields as $_where => $_value) {
$new_parts[] = PMA_Util::backquote($_where);
$new_value_parts[] = PMA_Util::sqlAddSlashes($_value);
}
$table_copy_query = '
SELECT ' . implode(', ', $select_parts) . '
FROM ' . PMA_Util::backquote($GLOBALS['cfgRelation']['db']) . '.'
. PMA_Util::backquote($GLOBALS['cfgRelation'][$pma_table]) . '
WHERE ' . implode(' AND ', $where_parts);
// must use PMA_DatabaseInterface::QUERY_STORE here, since we execute
// another query inside the loop
$table_copy_rs = PMA_queryAsControlUser(
$table_copy_query, true, PMA_DatabaseInterface::QUERY_STORE
);
while ($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') {
$value_parts[] = PMA_Util::sqlAddSlashes($_val);
}
}
$new_table_query = 'INSERT IGNORE INTO '
. PMA_Util::backquote($GLOBALS['cfgRelation']['db'])
. '.'
. PMA_Util::backquote($GLOBALS['cfgRelation'][$pma_table])
. ' (' . implode(', ', $select_parts)
. ', ' . implode(', ', $new_parts)
. ') VALUES (\''
. implode('\', \'', $value_parts) . '\', \''
. implode('\', \'', $new_value_parts) . '\')';
PMA_queryAsControlUser($new_table_query);
$last_id = $GLOBALS['dbi']->insertId();
} // end while
$GLOBALS['dbi']->freeResult($table_copy_rs);
return $last_id;
}
return true;
} // end of 'PMA_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 $mode mode
*
* @return bool true if success, false otherwise
*/
static public function moveCopy($source_db, $source_table, $target_db,
$target_table, $what, $move, $mode
) {
global $err_url;
/* Try moving table directly */
if ($move && $what == 'data') {
$tbl = new PMA_Table($source_table, $source_db);
$result = $tbl->rename($target_table, $target_db);
if ($result) {
$GLOBALS['message'] = $tbl->getLastMessage();
return true;
}
}
// set export settings we need
$GLOBALS['sql_backquotes'] = 1;
$GLOBALS['asfile'] = 1;
// Ensure the target is valid
if (! $GLOBALS['pma']->databases->exists($source_db, $target_db)) {
if (! $GLOBALS['pma']->databases->exists($source_db)) {
$GLOBALS['message'] = PMA_Message::rawError(
sprintf(
__('Source database `%s` was not found!'),
htmlspecialchars($source_db)
)
);
}
if (! $GLOBALS['pma']->databases->exists($target_db)) {
$GLOBALS['message'] = PMA_Message::rawError(
sprintf(
__('Target database `%s` was not found!'),
htmlspecialchars($target_db)
)
);
}
return false;
}
$source = PMA_Util::backquote($source_db)
. '.' . PMA_Util::backquote($source_table);
if (! isset($target_db) || ! /*overload*/mb_strlen($target_db)) {
$target_db = $source_db;
}
// Doing a select_db could avoid some problems with replicated databases,
// when moving table from replicated one to not replicated one
$GLOBALS['dbi']->selectDb($target_db);
$target = PMA_Util::backquote($target_db)
. '.' . PMA_Util::backquote($target_table);
// do not create the table if dataonly
if ($what != 'dataonly') {
include_once "libraries/plugin_interface.lib.php";
// get Export SQL instance
$export_sql_plugin = PMA_getPlugin(
"export",
"sql",
'libraries/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'];
}
$sql_structure = $export_sql_plugin->getTableDef(
$source_db, $source_table, "\n", $err_url, false, false
);
unset($no_constraints_comments);
$parsed_sql = PMA_SQP_parse($sql_structure);
$analyzed_sql = PMA_SQP_analyze($parsed_sql);
$i = 0;
if (empty($analyzed_sql[0]['create_table_fields'])) {
// this is not a CREATE TABLE, so find the first VIEW
$target_for_view = PMA_Util::backquote($target_db);
while (true) {
if ($parsed_sql[$i]['type'] == 'alpha_reservedWord'
&& $parsed_sql[$i]['data'] == 'VIEW'
) {
break;
}
$i++;
}
}
unset($analyzed_sql);
if (PMA_DRIZZLE) {
$table_delimiter = 'quote_backtick';
} else {
$server_sql_mode = $GLOBALS['dbi']->fetchValue(
"SHOW VARIABLES LIKE 'sql_mode'",
0,
1
);
// ANSI_QUOTES might be a subset of sql_mode, for example
// REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ANSI
if (false !== /*overload*/mb_strpos($server_sql_mode, 'ANSI_QUOTES')
) {
$table_delimiter = 'quote_double';
} else {
$table_delimiter = 'quote_backtick';
}
unset($server_sql_mode);
}
/* Find table name in query and replace it */
while ($parsed_sql[$i]['type'] != $table_delimiter) {
$i++;
}
/* no need to backquote() */
if (isset($target_for_view)) {
// this a view definition; we just found the first db name
// that follows DEFINER VIEW
// so change it for the new db name
$parsed_sql[$i]['data'] = $target_for_view;
// then we have to find all references to the source db
// and change them to the target db, ensuring we stay into
// the $parsed_sql limits
$last = $parsed_sql['len'] - 1;
$backquoted_source_db = PMA_Util::backquote($source_db);
for (++$i; $i <= $last; $i++) {
if ($parsed_sql[$i]['type'] == $table_delimiter
&& $parsed_sql[$i]['data'] == $backquoted_source_db
&& $parsed_sql[$i - 1]['type'] != 'punct_qualifier'
) {
$parsed_sql[$i]['data'] = $target_for_view;
}
}
unset($last,$backquoted_source_db);
} else {
$parsed_sql[$i]['data'] = $target;
}
/* Generate query back */
$sql_structure = PMA_SQP_format($parsed_sql, 'query_only');
// If table exists, and 'add drop table' is selected: Drop it!
if (isset($_REQUEST['drop_if_exists'])
&& $_REQUEST['drop_if_exists'] == 'true'
) {
if (PMA_Table::isView($target_db, $target_table)) {
$drop_query = 'DROP VIEW';
} else {
$drop_query = 'DROP TABLE';
}
$drop_query .= ' IF EXISTS '
. PMA_Util::backquote($target_db) . '.'
. PMA_Util::backquote($target_table);
$GLOBALS['dbi']->query($drop_query);
$GLOBALS['sql_query'] .= "\n" . $drop_query . ';';
// If an existing table gets deleted, maintain any
// entries for the PMA_* tables
$maintain_relations = true;
}
@$GLOBALS['dbi']->query($sql_structure);
$GLOBALS['sql_query'] .= "\n" . $sql_structure . ';';
if (($move || isset($GLOBALS['add_constraints']))
&& !empty($GLOBALS['sql_constraints_query'])
) {
$parsed_sql = PMA_SQP_parse($GLOBALS['sql_constraints_query']);
$i = 0;
// find the first $table_delimiter, it must be the source
// table name
while ($parsed_sql[$i]['type'] != $table_delimiter) {
$i++;
// maybe someday we should guard against going over limit
//if ($i == $parsed_sql['len']) {
// break;
//}
}
// replace it by the target table name, no need
// to backquote()
$parsed_sql[$i]['data'] = $target;
// now we must remove all $table_delimiter that follow a
// CONSTRAINT keyword, because a constraint name must be
// unique in a db
$cnt = $parsed_sql['len'] - 1;
for ($j = $i; $j < $cnt; $j++) {
$dataUpper = /*overload*/mb_strtoupper($parsed_sql[$j]['data']);
if ($parsed_sql[$j]['type'] == 'alpha_reservedWord'
&& $dataUpper == 'CONSTRAINT'
) {
if ($parsed_sql[$j+1]['type'] == $table_delimiter) {
$parsed_sql[$j+1]['data'] = '';
}
}
}
// Generate query back
$GLOBALS['sql_constraints_query'] = PMA_SQP_format(
$parsed_sql, 'query_only'
);
if ($mode == 'one_table') {
$GLOBALS['dbi']->query($GLOBALS['sql_constraints_query']);
}
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_constraints_query'];
if ($mode == 'one_table') {
unset($GLOBALS['sql_constraints_query']);
}
}
// add indexes to the table
if (!empty($GLOBALS['sql_indexes'])) {
$parsed_sql = PMA_SQP_parse($GLOBALS['sql_indexes']);
$i = 0;
while ($parsed_sql[$i]['type'] != $table_delimiter) {
$i++;
}
$parsed_sql[$i]['data'] = $target;
$cnt = $parsed_sql['len'] - 1;
for ($j = $i; $j < $cnt; $j++) {
$dataUpper = /*overload*/mb_strtoupper($parsed_sql[$j]['data']);
if ($parsed_sql[$j]['type'] == 'alpha_reservedWord'
&& $dataUpper == 'CONSTRAINT'
) {
if ($parsed_sql[$j+1]['type'] == $table_delimiter) {
$parsed_sql[$j+1]['data'] = '';
}
}
}
$GLOBALS['sql_indexes'] = PMA_SQP_format(
$parsed_sql, 'query_only'
);
if ($mode == 'one_table' || $mode == 'db_copy') {
$GLOBALS['dbi']->query($GLOBALS['sql_indexes']);
}
$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_indexes'];