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MySQL & MySQLi, SQLite & SQLite3 reflectors moved do external classes DibiMySqlReflector and DibiSqliteReflector

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This commit is contained in:
David Grudl
2010-08-05 21:14:37 +02:00
parent 65b5e2eecd
commit 6430573d61
6 changed files with 332 additions and 478 deletions
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93
dibi/drivers/mysql.php
View File

@@ -11,6 +11,9 @@
*/ */
require_once dirname(__FILE__) . '/mysql.reflector.php';
/** /**
* The dibi driver for MySQL database. * The dibi driver for MySQL database.
* *
@@ -32,7 +35,7 @@
* @copyright Copyright (c) 2005, 2010 David Grudl * @copyright Copyright (c) 2005, 2010 David Grudl
* @package dibi\drivers * @package dibi\drivers
*/ */
class DibiMySqlDriver extends DibiObject implements IDibiDriver, IDibiResultDriver, IDibiReflector class DibiMySqlDriver extends DibiObject implements IDibiDriver, IDibiResultDriver
{ {
const ERROR_ACCESS_DENIED = 1045; const ERROR_ACCESS_DENIED = 1045;
const ERROR_DUPLICATE_ENTRY = 1062; const ERROR_DUPLICATE_ENTRY = 1062;
@@ -263,7 +266,7 @@ class DibiMySqlDriver extends DibiObject implements IDibiDriver, IDibiResultDriv
*/ */
public function getReflector() public function getReflector()
{ {
return $this; return new DibiMySqlReflector($this);
} }
@@ -434,90 +437,4 @@ class DibiMySqlDriver extends DibiObject implements IDibiDriver, IDibiResultDriv
return $this->resultSet; return $this->resultSet;
} }
/********************* IDibiReflector ****************d*g**/
/**
* Returns list of tables.
* @return array
*/
public function getTables()
{
$this->query("SHOW FULL TABLES");
$res = array();
while ($row = $this->fetch(FALSE)) {
$res[] = array(
'name' => $row[0],
'view' => isset($row[1]) && $row[1] === 'VIEW',
);
}
$this->free();
return $res;
}
/**
* Returns metadata for all columns in a table.
* @param string
* @return array
*/
public function getColumns($table)
{
$this->query("SHOW FULL COLUMNS FROM `$table`");
$res = array();
while ($row = $this->fetch(TRUE)) {
$type = explode('(', $row['Type']);
$res[] = array(
'name' => $row['Field'],
'table' => $table,
'nativetype' => strtoupper($type[0]),
'size' => isset($type[1]) ? (int) $type[1] : NULL,
'unsigned' => (bool) strstr($row['Type'], 'unsigned'),
'nullable' => $row['Null'] === 'YES',
'default' => $row['Default'],
'autoincrement' => $row['Extra'] === 'auto_increment',
'vendor' => $row,
);
}
$this->free();
return $res;
}
/**
* Returns metadata for all indexes in a table.
* @param string
* @return array
*/
public function getIndexes($table)
{
$this->query("SHOW INDEX FROM `$table`");
$res = array();
while ($row = $this->fetch(TRUE)) {
$res[$row['Key_name']]['name'] = $row['Key_name'];
$res[$row['Key_name']]['unique'] = !$row['Non_unique'];
$res[$row['Key_name']]['primary'] = $row['Key_name'] === 'PRIMARY';
$res[$row['Key_name']]['columns'][$row['Seq_in_index'] - 1] = $row['Column_name'];
}
$this->free();
return array_values($res);
}
/**
* Returns metadata for all foreign keys in a table.
* @param string
* @return array
*/
public function getForeignKeys($table)
{
throw new NotImplementedException;
}
} }

133
dibi/drivers/mysql.reflector.php Normal file
View File

@@ -0,0 +1,133 @@
<?php
/**
* dibi - tiny'n'smart database abstraction layer
* ----------------------------------------------
*
* @copyright Copyright (c) 2005, 2010 David Grudl
* @license http://dibiphp.com/license dibi license
* @link http://dibiphp.com
* @package dibi\drivers
*/
/**
* The dibi reflector for MySQL databases.
*
* @copyright Copyright (c) 2005, 2010 David Grudl
* @package dibi\drivers
* @internal
*/
class DibiMySqlReflector extends DibiObject implements IDibiReflector
{
/** @var IDibiDriver */
private $driver;
public function __construct(IDibiDriver $driver)
{
$this->driver = $driver;
}
/**
* Returns list of tables.
* @return array
*/
public function getTables()
{
/*$this->query("
SELECT TABLE_NAME as name, TABLE_TYPE = 'VIEW' as view
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = DATABASE()
");*/
$this->driver->query("SHOW FULL TABLES");
$res = array();
while ($row = $this->driver->fetch(FALSE)) {
$res[] = array(
'name' => $row[0],
'view' => isset($row[1]) && $row[1] === 'VIEW',
);
}
$this->driver->free();
return $res;
}
/**
* Returns metadata for all columns in a table.
* @param string
* @return array
*/
public function getColumns($table)
{
/*$table = $this->escape($table, dibi::TEXT);
$this->query("
SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = $table AND TABLE_SCHEMA = DATABASE()
");*/
$this->driver->query("SHOW FULL COLUMNS FROM `$table`");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$type = explode('(', $row['Type']);
$res[] = array(
'name' => $row['Field'],
'table' => $table,
'nativetype' => strtoupper($type[0]),
'size' => isset($type[1]) ? (int) $type[1] : NULL,
'unsigned' => (bool) strstr($row['Type'], 'unsigned'),
'nullable' => $row['Null'] === 'YES',
'default' => $row['Default'],
'autoincrement' => $row['Extra'] === 'auto_increment',
'vendor' => $row,
);
}
$this->driver->free();
return $res;
}
/**
* Returns metadata for all indexes in a table.
* @param string
* @return array
*/
public function getIndexes($table)
{
/*$table = $this->escape($table, dibi::TEXT);
$this->query("
SELECT *
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE TABLE_NAME = $table AND TABLE_SCHEMA = DATABASE()
AND REFERENCED_COLUMN_NAME IS NULL
");*/
$this->driver->query("SHOW INDEX FROM `$table`");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$res[$row['Key_name']]['name'] = $row['Key_name'];
$res[$row['Key_name']]['unique'] = !$row['Non_unique'];
$res[$row['Key_name']]['primary'] = $row['Key_name'] === 'PRIMARY';
$res[$row['Key_name']]['columns'][$row['Seq_in_index'] - 1] = $row['Column_name'];
}
$this->driver->free();
return array_values($res);
}
/**
* Returns metadata for all foreign keys in a table.
* @param string
* @return array
*/
public function getForeignKeys($table)
{
throw new NotImplementedException;
}
}

111
dibi/drivers/mysqli.php
View File

@@ -11,6 +11,9 @@
*/ */
require_once dirname(__FILE__) . '/mysql.reflector.php';
/** /**
* The dibi driver for MySQL database via improved extension. * The dibi driver for MySQL database via improved extension.
* *
@@ -33,7 +36,7 @@
* @copyright Copyright (c) 2005, 2010 David Grudl * @copyright Copyright (c) 2005, 2010 David Grudl
* @package dibi\drivers * @package dibi\drivers
*/ */
class DibiMySqliDriver extends DibiObject implements IDibiDriver, IDibiResultDriver, IDibiReflector class DibiMySqliDriver extends DibiObject implements IDibiDriver, IDibiResultDriver
{ {
const ERROR_ACCESS_DENIED = 1045; const ERROR_ACCESS_DENIED = 1045;
const ERROR_DUPLICATE_ENTRY = 1062; const ERROR_DUPLICATE_ENTRY = 1062;
@@ -260,7 +263,7 @@ class DibiMySqliDriver extends DibiObject implements IDibiDriver, IDibiResultDri
*/ */
public function getReflector() public function getReflector()
{ {
return $this; return new DibiMySqlReflector($this);
} }
@@ -440,108 +443,4 @@ class DibiMySqliDriver extends DibiObject implements IDibiDriver, IDibiResultDri
return $this->resultSet; return $this->resultSet;
} }
/********************* IDibiReflector ****************d*g**/
/**
* Returns list of tables.
* @return array
*/
public function getTables()
{
/*$this->query("
SELECT TABLE_NAME as name, TABLE_TYPE = 'VIEW' as view
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = DATABASE()
");*/
$this->query("SHOW FULL TABLES");
$res = array();
while ($row = $this->fetch(FALSE)) {
$res[] = array(
'name' => $row[0],
'view' => isset($row[1]) && $row[1] === 'VIEW',
);
}
$this->free();
return $res;
}
/**
* Returns metadata for all columns in a table.
* @param string
* @return array
*/
public function getColumns($table)
{
/*$table = $this->escape($table, dibi::TEXT);
$this->query("
SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = $table AND TABLE_SCHEMA = DATABASE()
");*/
$this->query("SHOW FULL COLUMNS FROM `$table`");
$res = array();
while ($row = $this->fetch(TRUE)) {
$type = explode('(', $row['Type']);
$res[] = array(
'name' => $row['Field'],
'table' => $table,
'nativetype' => strtoupper($type[0]),
'size' => isset($type[1]) ? (int) $type[1] : NULL,
'unsigned' => (bool) strstr($row['Type'], 'unsigned'),
'nullable' => $row['Null'] === 'YES',
'default' => $row['Default'],
'autoincrement' => $row['Extra'] === 'auto_increment',
'vendor' => $row,
);
}
$this->free();
return $res;
}
/**
* Returns metadata for all indexes in a table.
* @param string
* @return array
*/
public function getIndexes($table)
{
/*$table = $this->escape($table, dibi::TEXT);
$this->query("
SELECT *
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE TABLE_NAME = $table AND TABLE_SCHEMA = DATABASE()
AND REFERENCED_COLUMN_NAME IS NULL
");*/
$this->query("SHOW INDEX FROM `$table`");
$res = array();
while ($row = $this->fetch(TRUE)) {
$res[$row['Key_name']]['name'] = $row['Key_name'];
$res[$row['Key_name']]['unique'] = !$row['Non_unique'];
$res[$row['Key_name']]['primary'] = $row['Key_name'] === 'PRIMARY';
$res[$row['Key_name']]['columns'][$row['Seq_in_index'] - 1] = $row['Column_name'];
}
$this->free();
return array_values($res);
}
/**
* Returns metadata for all foreign keys in a table.
* @param string
* @return array
*/
public function getForeignKeys($table)
{
throw new NotImplementedException;
}
} }

140
dibi/drivers/sqlite.php
View File

@@ -11,6 +11,9 @@
*/ */
require_once dirname(__FILE__) . '/sqlite.reflector.php';
/** /**
* The dibi driver for SQLite database. * The dibi driver for SQLite database.
* *
@@ -28,7 +31,7 @@
* @copyright Copyright (c) 2005, 2010 David Grudl * @copyright Copyright (c) 2005, 2010 David Grudl
* @package dibi\drivers * @package dibi\drivers
*/ */
class DibiSqliteDriver extends DibiObject implements IDibiDriver, IDibiResultDriver, IDibiReflector class DibiSqliteDriver extends DibiObject implements IDibiDriver, IDibiResultDriver
{ {
/** @var resource Connection resource */ /** @var resource Connection resource */
private $connection; private $connection;
@@ -210,7 +213,7 @@ class DibiSqliteDriver extends DibiObject implements IDibiDriver, IDibiResultDri
*/ */
public function getReflector() public function getReflector()
{ {
return $this; return new DibiSqliteReflector($this);
} }
@@ -387,139 +390,6 @@ class DibiSqliteDriver extends DibiObject implements IDibiDriver, IDibiResultDri
/********************* IDibiReflector ****************d*g**/
/**
* Returns list of tables.
* @return array
*/
public function getTables()
{
$this->query("
SELECT name, type = 'view' as view FROM sqlite_master WHERE type IN ('table', 'view')
UNION ALL
SELECT name, type = 'view' as view FROM sqlite_temp_master WHERE type IN ('table', 'view')
ORDER BY name
");
$res = array();
while ($row = $this->fetch(TRUE)) {
$res[] = $row;
}
$this->free();
return $res;
}
/**
* Returns metadata for all columns in a table.
* @param string
* @return array
*/
public function getColumns($table)
{
$this->query("
SELECT sql FROM sqlite_master WHERE type = 'table' AND name = '$table'
UNION ALL
SELECT sql FROM sqlite_temp_master WHERE type = 'table' AND name = '$table'"
);
$meta = $this->fetch(TRUE);
$this->free();
$this->query("PRAGMA table_info([$table])");
$res = array();
while ($row = $this->fetch(TRUE)) {
$column = $row['name'];
$pattern = "/(\"$column\"|\[$column\]|$column)\s+[^,]+\s+PRIMARY\s+KEY\s+AUTOINCREMENT/Ui";
$type = explode('(', $row['type']);
$res[] = array(
'name' => $column,
'table' => $table,
'fullname' => "$table.$column",
'nativetype' => strtoupper($type[0]),
'size' => isset($type[1]) ? (int) $type[1] : NULL,
'nullable' => $row['notnull'] == '0',
'default' => $row['dflt_value'],
'autoincrement' => (bool) preg_match($pattern, $meta['sql']),
'vendor' => $row,
);
}
$this->free();
return $res;
}
/**
* Returns metadata for all indexes in a table.
* @param string
* @return array
*/
public function getIndexes($table)
{
$this->query("PRAGMA index_list([$table])");
$res = array();
while ($row = $this->fetch(TRUE)) {
$res[$row['name']]['name'] = $row['name'];
$res[$row['name']]['unique'] = (bool) $row['unique'];
}
$this->free();
foreach ($res as $index => $values) {
$this->query("PRAGMA index_info([$index])");
while ($row = $this->fetch(TRUE)) {
$res[$index]['columns'][$row['seqno']] = $row['name'];
}
}
$this->free();
$columns = $this->getColumns($table);
foreach ($res as $index => $values) {
$column = $res[$index]['columns'][0];
$primary = FALSE;
foreach ($columns as $info) {
if ($column == $info['name']) {
$primary = $info['vendor']['pk'];
break;
}
}
$res[$index]['primary'] = (bool) $primary;
}
if (!$res) { // @see http://www.sqlite.org/lang_createtable.html#rowid
foreach ($columns as $column) {
if ($column['vendor']['pk']) {
$res[] = array(
'name' => 'ROWID',
'unique' => TRUE,
'primary' => TRUE,
'columns' => array($column['name']),
);
break;
}
}
}
return array_values($res);
}
/**
* Returns metadata for all foreign keys in a table.
* @param string
* @return array
*/
public function getForeignKeys($table)
{
// @see http://www.sqlite.org/foreignkeys.html
throw new NotSupportedException;
}
/********************* user defined functions ****************d*g**/ /********************* user defined functions ****************d*g**/

179
dibi/drivers/sqlite.reflector.php Normal file
View File

@@ -0,0 +1,179 @@
<?php
/**
* dibi - tiny'n'smart database abstraction layer
* ----------------------------------------------
*
* @copyright Copyright (c) 2005, 2010 David Grudl
* @license http://dibiphp.com/license dibi license
* @link http://dibiphp.com
* @package dibi\drivers
*/
/**
* The dibi reflector for SQLite database.
*
* @copyright Copyright (c) 2005, 2010 David Grudl
* @package dibi\drivers
* @internal
*/
class DibiSqliteReflector extends DibiObject implements IDibiReflector
{
/** @var IDibiDriver */
private $driver;
public function __construct(IDibiDriver $driver)
{
$this->driver = $driver;
}
/**
* Returns list of tables.
* @return array
*/
public function getTables()
{
$this->driver->query("
SELECT name, type = 'view' as view FROM sqlite_master WHERE type IN ('table', 'view')
UNION ALL
SELECT name, type = 'view' as view FROM sqlite_temp_master WHERE type IN ('table', 'view')
ORDER BY name
");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$res[] = $row;
}
$this->driver->free();
return $res;
}
/**
* Returns metadata for all columns in a table.
* @param string
* @return array
*/
public function getColumns($table)
{
$this->driver->query("
SELECT sql FROM sqlite_master WHERE type = 'table' AND name = '$table'
UNION ALL
SELECT sql FROM sqlite_temp_master WHERE type = 'table' AND name = '$table'"
);
$meta = $this->driver->fetch(TRUE);
$this->driver->free();
$this->driver->query("PRAGMA table_info([$table])");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$column = $row['name'];
$pattern = "/(\"$column\"|\[$column\]|$column)\s+[^,]+\s+PRIMARY\s+KEY\s+AUTOINCREMENT/Ui";
$type = explode('(', $row['type']);
$res[] = array(
'name' => $column,
'table' => $table,
'fullname' => "$table.$column",
'nativetype' => strtoupper($type[0]),
'size' => isset($type[1]) ? (int) $type[1] : NULL,
'nullable' => $row['notnull'] == '0',
'default' => $row['dflt_value'],
'autoincrement' => (bool) preg_match($pattern, $meta['sql']),
'vendor' => $row,
);
}
$this->driver->free();
return $res;
}
/**
* Returns metadata for all indexes in a table.
* @param string
* @return array
*/
public function getIndexes($table)
{
$this->driver->query("PRAGMA index_list([$table])");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$res[$row['name']]['name'] = $row['name'];
$res[$row['name']]['unique'] = (bool) $row['unique'];
}
$this->driver->free();
foreach ($res as $index => $values) {
$this->driver->query("PRAGMA index_info([$index])");
while ($row = $this->driver->fetch(TRUE)) {
$res[$index]['columns'][$row['seqno']] = $row['name'];
}
}
$this->driver->free();
$columns = $this->getColumns($table);
foreach ($res as $index => $values) {
$column = $res[$index]['columns'][0];
$primary = FALSE;
foreach ($columns as $info) {
if ($column == $info['name']) {
$primary = $info['vendor']['pk'];
break;
}
}
$res[$index]['primary'] = (bool) $primary;
}
if (!$res) { // @see http://www.sqlite.org/lang_createtable.html#rowid
foreach ($columns as $column) {
if ($column['vendor']['pk']) {
$res[] = array(
'name' => 'ROWID',
'unique' => TRUE,
'primary' => TRUE,
'columns' => array($column['name']),
);
break;
}
}
}
return array_values($res);
}
/**
* Returns metadata for all foreign keys in a table.
* @param string
* @return array
*/
public function getForeignKeys($table)
{
if (!($this->driver instanceof DibiSqlite3Driver)) {
// throw new NotSupportedException; // @see http://www.sqlite.org/foreignkeys.html
}
$this->driver->query("PRAGMA foreign_key_list([$table])");
$res = array();
while ($row = $this->driver->fetch(TRUE)) {
$res[$row['id']]['name'] = $row['id']; // foreign key name
$res[$row['id']]['local'][$row['seq']] = $row['from']; // local columns
$res[$row['id']]['table'] = $row['table']; // referenced table
$res[$row['id']]['foreign'][$row['seq']] = $row['to']; // referenced columns
$res[$row['id']]['onDelete'] = $row['on_delete'];
$res[$row['id']]['onUpdate'] = $row['on_update'];
if ($res[$row['id']]['foreign'][0] == NULL) {
$res[$row['id']]['foreign'] = NULL;
}
}
$this->driver->free();
return array_values($res);
}
}

154
dibi/drivers/sqlite3.php
View File

@@ -11,6 +11,9 @@
*/ */
require_once dirname(__FILE__) . '/sqlite.reflector.php';
/** /**
* The dibi driver for SQLite3 database. * The dibi driver for SQLite3 database.
* *
@@ -26,7 +29,7 @@
* @copyright Copyright (c) 2005, 2010 David Grudl * @copyright Copyright (c) 2005, 2010 David Grudl
* @package dibi\drivers * @package dibi\drivers
*/ */
class DibiSqlite3Driver extends DibiObject implements IDibiDriver, IDibiResultDriver, IDibiReflector class DibiSqlite3Driver extends DibiObject implements IDibiDriver, IDibiResultDriver
{ {
/** @var SQLite3 Connection resource */ /** @var SQLite3 Connection resource */
private $connection; private $connection;
@@ -200,7 +203,7 @@ class DibiSqlite3Driver extends DibiObject implements IDibiDriver, IDibiResultDr
*/ */
public function getReflector() public function getReflector()
{ {
return $this; return new DibiSqliteReflector($this);
} }
@@ -373,153 +376,6 @@ class DibiSqlite3Driver extends DibiObject implements IDibiDriver, IDibiResultDr
/********************* IDibiReflector ****************d*g**/
/**
* Returns list of tables.
* @return array
*/
public function getTables()
{
$this->query("
SELECT name, type = 'view' as view FROM sqlite_master WHERE type IN ('table', 'view')
UNION ALL
SELECT name, type = 'view' as view FROM sqlite_temp_master WHERE type IN ('table', 'view')
ORDER BY name
");
$res = array();
while ($row = $this->fetch(TRUE)) {
$res[] = $row;
}
$this->free();
return $res;
}
/**
* Returns metadata for all columns in a table.
* @param string
* @return array
*/
public function getColumns($table)
{
$this->query("
SELECT sql FROM sqlite_master WHERE type = 'table' AND name = '$table'
UNION ALL
SELECT sql FROM sqlite_temp_master WHERE type = 'table' AND name = '$table'"
);
$meta = $this->fetch(TRUE);
$this->free();
$this->query("PRAGMA table_info([$table])");
$res = array();
while ($row = $this->fetch(TRUE)) {
$column = $row['name'];
$pattern = "/(\"$column\"|\[$column\]|$column)\s+[^,]+\s+PRIMARY\s+KEY\s+AUTOINCREMENT/Ui";
$type = explode('(', $row['type']);
$res[] = array(
'name' => $column,
'table' => $table,
'fullname' => "$table.$column",
'nativetype' => strtoupper($type[0]),
'size' => isset($type[1]) ? (int) $type[1] : NULL,
'nullable' => $row['notnull'] == '0',
'default' => $row['dflt_value'],
'autoincrement' => (bool) preg_match($pattern, $meta['sql']),
'vendor' => $row,
);
}
$this->free();
return $res;
}
/**
* Returns metadata for all indexes in a table.
* @param string
* @return array
*/
public function getIndexes($table)
{
$this->query("PRAGMA index_list([$table])");
$res = array();
while ($row = $this->fetch(TRUE)) {
$res[$row['name']]['name'] = $row['name'];
$res[$row['name']]['unique'] = (bool) $row['unique'];
}
$this->free();
foreach ($res as $index => $values) {
$this->query("PRAGMA index_info([$index])");
while ($row = $this->fetch(TRUE)) {
$res[$index]['columns'][$row['seqno']] = $row['name'];
}
}
$this->free();
$columns = $this->getColumns($table);
foreach ($res as $index => $values) {
$column = $res[$index]['columns'][0];
$primary = FALSE;
foreach ($columns as $info) {
if ($column == $info['name']) {
$primary = $info['vendor']['pk'];
break;
}
}
$res[$index]['primary'] = (bool) $primary;
}
if (!$res) { // @see http://www.sqlite.org/lang_createtable.html#rowid
foreach ($columns as $column) {
if ($column['vendor']['pk']) {
$res[] = array(
'name' => 'ROWID',
'unique' => TRUE,
'primary' => TRUE,
'columns' => array($column['name']),
);
break;
}
}
}
return array_values($res);
}
/**
* Returns metadata for all foreign keys in a table.
* @param string
* @return array
*/
public function getForeignKeys($table)
{
$this->query("PRAGMA foreign_key_list([$table])");
$res = array();
while ($row = $this->fetch(TRUE)) {
$res[$row['id']]['name'] = $row['id']; // foreign key name
$res[$row['id']]['local'][$row['seq']] = $row['from']; // local columns
$res[$row['id']]['table'] = $row['table']; // referenced table
$res[$row['id']]['foreign'][$row['seq']] = $row['to']; // referenced columns
$res[$row['id']]['onDelete'] = $row['on_delete'];
$res[$row['id']]['onUpdate'] = $row['on_update'];
if ($res[$row['id']]['foreign'][0] == NULL) {
$res[$row['id']]['foreign'] = NULL;
}
}
$this->free();
return array_values($res);
}
/********************* user defined functions ****************d*g**/ /********************* user defined functions ****************d*g**/