Vergleich inc/db_pgsql.php - 1.8.5 - 1.8.29

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	/**
* Connect to the database server.
*

	/**
* Connect to the database server.
*

	 * @param array Array of DBMS connection details.

	 * @param array $config Array of DBMS connection details.

	 * @return resource The DB connection resource. Returns false on failure
*/
function connect($config)

	 * @return resource The DB connection resource. Returns false on failure
*/
function connect($config)

Zeile 181Zeile 181
			}
}


			}
}


		$this->db_encoding = $config['encoding'];




		if(isset($config['encoding']))
{
$this->db_encoding = $config['encoding'];
}


// Actually connect to the specified servers
foreach(array('read', 'write') as $type)


// Actually connect to the specified servers
foreach(array('read', 'write') as $type)

Zeile 189Zeile 192
			if(!isset($connections[$type]) || !is_array($connections[$type]))
{
break;

			if(!isset($connections[$type]) || !is_array($connections[$type]))
{
break;

			}


			}


			if(array_key_exists('hostname', $connections[$type]))
{
$details = $connections[$type];

			if(array_key_exists('hostname', $connections[$type]))
{
$details = $connections[$type];

				unset($connections);

				unset($connections[$type]);

				$connections[$type][] = $details;
}

// Shuffle the connections
shuffle($connections[$type]);

				$connections[$type][] = $details;
}

// Shuffle the connections
shuffle($connections[$type]);





			// Loop-de-loop
foreach($connections[$type] as $single_connection)
{

			// Loop-de-loop
foreach($connections[$type] as $single_connection)
{

Zeile 219Zeile 222
				if(strpos($single_connection['hostname'], ':') !== false)
{
list($single_connection['hostname'], $single_connection['port']) = explode(':', $single_connection['hostname']);

				if(strpos($single_connection['hostname'], ':') !== false)
{
list($single_connection['hostname'], $single_connection['port']) = explode(':', $single_connection['hostname']);

 
				}
else
{
$single_connection['port'] = null;

				}

if($single_connection['port'])

				}

if($single_connection['port'])

Zeile 270Zeile 277
		{
$this->error("[WRITE] Unable to connect to PgSQL server");
return false;

		{
$this->error("[WRITE] Unable to connect to PgSQL server");
return false;

		}


		}


		$this->current_link = &$this->read_link;
return $this->read_link;
}

		$this->current_link = &$this->read_link;
return $this->read_link;
}

Zeile 279Zeile 286
	/**
* Query the database.
*

	/**
* Query the database.
*

	 * @param string The query SQL.
* @param boolean 1 if hide errors, 0 if not.
* @param integer 1 if executes on slave database, 0 if not.

	 * @param string $string The query SQL.
* @param boolean|int $hide_errors 1 if hide errors, 0 if not.
* @param integer $write_query 1 if executes on slave database, 0 if not.

	 * @return resource The query data.
*/
function query($string, $hide_errors=0, $write_query=0)
{

	 * @return resource The query data.
*/
function query($string, $hide_errors=0, $write_query=0)
{

		global $pagestarttime, $db, $mybb;

		global $mybb;





		$string = preg_replace("#LIMIT (\s*)([0-9]+),(\s*)([0-9]+)$#im", "LIMIT $4 OFFSET $2", trim($string));

		$string = preg_replace("#LIMIT (\s*)([0-9]+),(\s*)([0-9]+);?$#im", "LIMIT $4 OFFSET $2", trim($string));


$this->last_query = $string;

get_execution_time();


$this->last_query = $string;

get_execution_time();





		if(strtolower(substr(ltrim($string), 0, 5)) == 'alter')
{
$string = preg_replace("#\sAFTER\s([a-z_]+?)(;*?)$#i", "", $string);

		if(strtolower(substr(ltrim($string), 0, 5)) == 'alter')
{
$string = preg_replace("#\sAFTER\s([a-z_]+?)(;*?)$#i", "", $string);

Zeile 311Zeile 318
			$query = pg_get_result($this->current_link);
}
else

			$query = pg_get_result($this->current_link);
}
else

		{

		{

			while(pg_connection_busy($this->read_link));
$this->current_link = &$this->read_link;
pg_send_query($this->current_link, $string);
$query = pg_get_result($this->current_link);

			while(pg_connection_busy($this->read_link));
$this->current_link = &$this->read_link;
pg_send_query($this->current_link, $string);
$query = pg_get_result($this->current_link);

		}

		}


if((pg_result_error($query) && !$hide_errors))
{


if((pg_result_error($query) && !$hide_errors))
{

Zeile 328Zeile 335
		$this->query_time += $query_time;
$this->query_count++;
$this->last_result = $query;

		$this->query_time += $query_time;
$this->query_count++;
$this->last_result = $query;





		if($mybb->debug_mode)
{
$this->explain_query($string, $query_time);

		if($mybb->debug_mode)
{
$this->explain_query($string, $query_time);

Zeile 339Zeile 346
	/**
* Execute a write query on the slave database
*

	/**
* Execute a write query on the slave database
*

	 * @param string The query SQL.
* @param boolean 1 if hide errors, 0 if not.

	 * @param string $query The query SQL.
* @param boolean|int $hide_errors 1 if hide errors, 0 if not.

	 * @return resource The query data.
*/
function write_query($query, $hide_errors=0)

	 * @return resource The query data.
*/
function write_query($query, $hide_errors=0)

	{

	{

		return $this->query($query, $hide_errors, 1);
}

/**
* Explain a query on the database.
*

		return $this->query($query, $hide_errors, 1);
}

/**
* Explain a query on the database.
*

	 * @param string The query SQL.
* @param string The time it took to perform the query.

	 * @param string $string The query SQL.
* @param string $qtime The time it took to perform the query.

	 */
function explain_query($string, $qtime)
{
if(preg_match("#^\s*select#i", $string))
{
$query = pg_query($this->current_link, "EXPLAIN $string");

	 */
function explain_query($string, $qtime)
{
if(preg_match("#^\s*select#i", $string))
{
$query = pg_query($this->current_link, "EXPLAIN $string");

			$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

			$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

				"<tr>\n".
"<td colspan=\"8\" style=\"background-color: #ccc;\"><strong>#".$this->query_count." - Select Query</strong></td>\n".
"</tr>\n".

				"<tr>\n".
"<td colspan=\"8\" style=\"background-color: #ccc;\"><strong>#".$this->query_count." - Select Query</strong></td>\n".
"</tr>\n".

Zeile 385Zeile 392
				"<br />\n";
}
else

				"<br />\n";
}
else

		{

		{

			$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

			$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

				"<tr>\n".

				"<tr>\n".

				"<td style=\"background-color: #ccc;\"><strong>#".$this->query_count." - Write Query</strong></td>\n".

				"<td style=\"background-color: #ccc;\"><strong>#".$this->query_count." - Write Query</strong></td>\n".

				"</tr>\n".

				"</tr>\n".

				"<tr style=\"background-color: #fefefe;\">\n".
"<td><span style=\"font-family: Courier; font-size: 14px;\">".htmlspecialchars_uni($string)."</span></td>\n".

				"<tr style=\"background-color: #fefefe;\">\n".
"<td><span style=\"font-family: Courier; font-size: 14px;\">".htmlspecialchars_uni($string)."</span></td>\n".

				"</tr>\n".

				"</tr>\n".

				"<tr>\n".
"<td bgcolor=\"#ffffff\">Query Time: ".format_time_duration($qtime)."</td>\n".
"</tr>\n".
"</table>\n".
"<br />\n";

				"<tr>\n".
"<td bgcolor=\"#ffffff\">Query Time: ".format_time_duration($qtime)."</td>\n".
"</tr>\n".
"</table>\n".
"<br />\n";

		}

		}


$this->querylist[$this->query_count]['query'] = $string;
$this->querylist[$this->query_count]['time'] = $qtime;


$this->querylist[$this->query_count]['query'] = $string;
$this->querylist[$this->query_count]['time'] = $qtime;

Zeile 407Zeile 414
	/**
* Return a result array for a query.
*

	/**
* Return a result array for a query.
*

	 * @param resource The query ID.
* @param constant The type of array to return.
* @return array The array of results.

	 * @param resource $query The query ID.
* @param int $resulttype The type of array to return. Either PGSQL_NUM, PGSQL_BOTH or PGSQL_ASSOC
* @return array The array of results. Note that all fields are returned as string: http://php.net/manual/en/function.pg-fetch-array.php

	 */
function fetch_array($query, $resulttype=PGSQL_ASSOC)
{
switch($resulttype)

	 */
function fetch_array($query, $resulttype=PGSQL_ASSOC)
{
switch($resulttype)

		{

		{

			case PGSQL_NUM:
case PGSQL_BOTH:
break;

			case PGSQL_NUM:
case PGSQL_BOTH:
break;

Zeile 427Zeile 434

return $array;
}


return $array;
}





	/**
* Return a specific field from a query.
*

	/**
* Return a specific field from a query.
*

	 * @param resource The query ID.
* @param string The name of the field to return.
* @param int The number of the row to fetch it from.


	 * @param resource $query The query ID.
* @param string $field The name of the field to return.
* @param int|bool The number of the row to fetch it from.
* @return string|bool|null As per http://php.net/manual/en/function.pg-fetch-result.php

	 */
function fetch_field($query, $field, $row=false)
{
if($row === false)
{
$array = $this->fetch_array($query);

	 */
function fetch_field($query, $field, $row=false)
{
if($row === false)
{
$array = $this->fetch_array($query);

			return $array[$field];
}
else
{
return pg_fetch_result($query, $row, $field);

			if($array !== null && $array !== false)
{
return $array[$field];
}
return null;

		}

		}

 

return pg_fetch_result($query, $row, $field);

	}

/**
* Moves internal row pointer to the next row
*

	}

/**
* Moves internal row pointer to the next row
*

	 * @param resource The query ID.
* @param int The pointer to move the row to.


	 * @param resource $query The query ID.
* @param int $row The pointer to move the row to.
* @return bool

	 */
function data_seek($query, $row)
{

	 */
function data_seek($query, $row)
{

Zeile 462Zeile 473
	/**
* Return the number of rows resulting from a query.
*

	/**
* Return the number of rows resulting from a query.
*

	 * @param resource The query ID.

	 * @param resource $query The query ID.

	 * @return int The number of rows in the result.
*/
function num_rows($query)

	 * @return int The number of rows in the result.
*/
function num_rows($query)

Zeile 477Zeile 488
	 */
function insert_id()
{

	 */
function insert_id()
{

		$this->last_query = str_replace(array("\r", "\t"), '', $this->last_query);
$this->last_query = str_replace("\n", ' ', $this->last_query);
preg_match('#INSERT INTO ([a-zA-Z0-9_\-]+)#i', $this->last_query, $matches);

		preg_match('#INSERT\s+INTO\s+([a-zA-Z0-9_\-]+)#i', $this->last_query, $matches);




$table = $matches[1];



$table = $matches[1];


Zeile 489Zeile 498
		// Do we not have a primary field?
if(!$field)
{

		// Do we not have a primary field?
if(!$field)
{

			return;
}


			return 0;
}


		$id = $this->write_query("SELECT currval(pg_get_serial_sequence('{$table}', '{$field}')) AS last_value");
return $this->fetch_field($id, 'last_value');
}

		$id = $this->write_query("SELECT currval(pg_get_serial_sequence('{$table}', '{$field}')) AS last_value");
return $this->fetch_field($id, 'last_value');
}

Zeile 506Zeile 515
		if($this->write_link)
{
@pg_close($this->write_link);

		if($this->write_link)
{
@pg_close($this->write_link);

		}

		}

	}

/**
* Return an error number.
*

	}

/**
* Return an error number.
*

 
	 * @param resource $query

	 * @return int The error number of the current error.
*/

	 * @return int The error number of the current error.
*/

	function error_number($query="")

	function error_number($query=null)

	{

	{

		if(!$query || !function_exists("pg_result_error_field"))

		if($query != null || !function_exists("pg_result_error_field"))

		{
return 0;
}

		{
return 0;
}

Zeile 527Zeile 537
	/**
* Return an error string.
*

	/**
* Return an error string.
*

 
	 * @param resource $query

	 * @return string The explanation for the current error.
*/

	 * @return string The explanation for the current error.
*/

	function error_string($query="")

	function error_string($query=null)

	{

	{

		if($query)

		if($query != null)

		{
return pg_result_error($query);
}

		{
return pg_result_error($query);
}

Zeile 543Zeile 554
		else
{
return pg_last_error();

		else
{
return pg_last_error();

		}
}

		}
}


/**
* Output a database error.
*


/**
* Output a database error.
*

	 * @param string The string to present as an error.


	 * @param string $string The string to present as an error.
* @param resource $query

	 */

	 */

	function error($string="", $query="")

	function error($string="", $query=null)

	{
if($this->error_reporting)
{

	{
if($this->error_reporting)
{

Zeile 581Zeile 593

/**
* Returns the number of affected rows in a query.


/**
* Returns the number of affected rows in a query.

	 *

	 *

	 * @return int The number of affected rows.
*/
function affected_rows()
{
return pg_affected_rows($this->last_result);

	 * @return int The number of affected rows.
*/
function affected_rows()
{
return pg_affected_rows($this->last_result);

	}


	}


	/**
* Return the number of fields.
*

	/**
* Return the number of fields.
*

	 * @param resource The query ID.

	 * @param resource $query The query ID.

	 * @return int The number of fields.
*/
function num_fields($query)
{
return pg_num_fields($query);

	 * @return int The number of fields.
*/
function num_fields($query)
{
return pg_num_fields($query);

	}


	}


	/**
* Lists all tables in the database.
*

	/**
* Lists all tables in the database.
*

	 * @param string The database name.
* @param string Prefix of the table (optional)

	 * @param string $database The database name.
* @param string $prefix Prefix of the table (optional)

	 * @return array The table list.
*/
function list_tables($database, $prefix='')

	 * @return array The table list.
*/
function list_tables($database, $prefix='')

Zeile 630Zeile 642
	/**
* Check if a table exists in a database.
*

	/**
* Check if a table exists in a database.
*

	 * @param string The table name.

	 * @param string $table The table name.

	 * @return boolean True when exists, false if not.
*/
function table_exists($table)

	 * @return boolean True when exists, false if not.
*/
function table_exists($table)

Zeile 638Zeile 650
		// Execute on master server to ensure if we've just created a table that we get the correct result
$query = $this->write_query("SELECT COUNT(table_name) as table_names FROM information_schema.tables WHERE table_schema = 'public' AND table_name='{$this->table_prefix}{$table}'");


		// Execute on master server to ensure if we've just created a table that we get the correct result
$query = $this->write_query("SELECT COUNT(table_name) as table_names FROM information_schema.tables WHERE table_schema = 'public' AND table_name='{$this->table_prefix}{$table}'");


		$exists = $this->fetch_field($query, 'table_names');


		$exists = $this->fetch_field($query, 'table_names');


		if($exists > 0)

		if($exists > 0)

		{

		{

			return true;

			return true;

		}

		}

		else
{
return false;

		else
{
return false;

Zeile 653Zeile 665
	/**
* Check if a field exists in a database.
*

	/**
* Check if a field exists in a database.
*

	 * @param string The field name.
* @param string The table name.

	 * @param string $field The field name.
* @param string $table The table name.

	 * @return boolean True when exists, false if not.

	 * @return boolean True when exists, false if not.

	 */

	 */

	function field_exists($field, $table)
{
$query = $this->write_query("SELECT COUNT(column_name) as column_names FROM information_schema.columns WHERE table_name='{$this->table_prefix}{$table}' AND column_name='{$field}'");

	function field_exists($field, $table)
{
$query = $this->write_query("SELECT COUNT(column_name) as column_names FROM information_schema.columns WHERE table_name='{$this->table_prefix}{$table}' AND column_name='{$field}'");





		$exists = $this->fetch_field($query, "column_names");

		$exists = $this->fetch_field($query, "column_names");





		if($exists > 0)

		if($exists > 0)

		{
return true;
}
else
{
return false;
}
}

/**

		{
return true;
}
else
{
return false;
}
}

/**

	 * Add a shutdown query.
*

	 * Add a shutdown query.
*

	 * @param resource The query data.
* @param string An optional name for the query.

	 * @param resource $query The query data.
* @param string $name An optional name for the query.

	 */

	 */

	function shutdown_query($query, $name=0)

	function shutdown_query($query, $name="")

	{
global $shutdown_queries;
if($name)

	{
global $shutdown_queries;
if($name)

Zeile 695Zeile 707
	/**
* Performs a simple select query.
*

	/**
* Performs a simple select query.
*

	 * @param string The table name to be queried.
* @param string Comma delimetered list of fields to be selected.
* @param string SQL formatted list of conditions to be matched.
* @param array List of options: group by, order by, order direction, limit, limit start.

	 * @param string $table The table name to be queried.
* @param string $fields Comma delimetered list of fields to be selected.
* @param string $conditions SQL formatted list of conditions to be matched.
* @param array $options List of options: group by, order by, order direction, limit, limit start.

	 * @return resource The query data.
*/
function simple_select($table, $fields="*", $conditions="", $options=array())

	 * @return resource The query data.
*/
function simple_select($table, $fields="*", $conditions="", $options=array())

Zeile 730Zeile 742
		else if(isset($options['limit']))
{
$query .= " LIMIT ".$options['limit'];

		else if(isset($options['limit']))
{
$query .= " LIMIT ".$options['limit'];

		}


		}


		return $this->query($query);
}

		return $this->query($query);
}





	/**
* Build an insert query from an array.
*

	/**
* Build an insert query from an array.
*

	 * @param string The table name to perform the query on.
* @param array An array of fields and their values.
* @param boolean Whether or not to return an insert id. True by default
* @return int The insert ID if available

	 * @param string $table The table name to perform the query on.
* @param array $array An array of fields and their values.
* @param boolean $insert_id Whether or not to return an insert id. True by default
* @return int|bool The insert ID if available. False on failure and true if $insert_id is false

	 */
function insert_query($table, $array, $insert_id=true)

	 */
function insert_query($table, $array, $insert_id=true)

	{
global $mybb;

if(!is_array($array))
{
return false;
}

foreach($array as $field => $value)

	{
global $mybb;

if(!is_array($array))
{
return false;
}

foreach($array as $field => $value)

		{
if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])
{

		{
if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])
{

Zeile 785Zeile 797
	/**
* Build one query for multiple inserts from a multidimensional array.
*

	/**
* Build one query for multiple inserts from a multidimensional array.
*

	 * @param string The table name to perform the query on.
* @param array An array of inserts.
* @return int The insert ID if available

	 * @param string $table The table name to perform the query on.
* @param array $array An array of inserts.
* @return void

	 */
function insert_query_multiple($table, $array)

	 */
function insert_query_multiple($table, $array)

	{
global $mybb;

if(!is_array($array))
{
return false;

	{
global $mybb;

if(!is_array($array))
{
return;

		}
// Field names
$fields = array_keys($array[0]);

		}
// Field names
$fields = array_keys($array[0]);

Zeile 805Zeile 817
		foreach($array as $values)
{
foreach($values as $field => $value)

		foreach($array as $values)
{
foreach($values as $field => $value)

			{

			{

				if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])
{
$values[$field] = $value;

				if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])
{
$values[$field] = $value;

Zeile 823Zeile 835
			INSERT
INTO {$this->table_prefix}{$table} ({$fields})
VALUES {$insert_rows}

			INSERT
INTO {$this->table_prefix}{$table} ({$fields})
VALUES {$insert_rows}

		");
}

		");
}


/**
* Build an update query from an array.
*


/**
* Build an update query from an array.
*

	 * @param string The table name to perform the query on.
* @param array An array of fields and their values.
* @param string An optional where clause for the query.
* @param string An optional limit clause for the query.
* @param boolean An option to quote incoming values of the array.

	 * @param string $table The table name to perform the query on.
* @param array $array An array of fields and their values.
* @param string $where An optional where clause for the query.
* @param string $limit An optional limit clause for the query.
* @param boolean $no_quote An option to quote incoming values of the array.

	 * @return resource The query data.
*/
function update_query($table, $array, $where="", $limit="", $no_quote=false)
{
global $mybb;

	 * @return resource The query data.
*/
function update_query($table, $array, $where="", $limit="", $no_quote=false)
{
global $mybb;





		if(!is_array($array))
{
return false;

		if(!is_array($array))
{
return false;

Zeile 878Zeile 890
		");
}


		");
}


 
	/**
* @param int|string $value
* @param string $quote
*
* @return int|string
*/

	private function quote_val($value, $quote="'")
{
if(is_int($value))

	private function quote_val($value, $quote="'")
{
if(is_int($value))

Zeile 895Zeile 913
	/**
* Build a delete query.
*

	/**
* Build a delete query.
*

	 * @param string The table name to perform the query on.
* @param string An optional where clause for the query.
* @param string An optional limit clause for the query.

	 * @param string $table The table name to perform the query on.
* @param string $where An optional where clause for the query.
* @param string $limit An optional limit clause for the query.

	 * @return resource The query data.
*/
function delete_query($table, $where="", $limit="")

	 * @return resource The query data.
*/
function delete_query($table, $where="", $limit="")

Zeile 918Zeile 936
	/**
* Escape a string according to the pg escape format.
*

	/**
* Escape a string according to the pg escape format.
*

	 * @param string The string to be escaped.

	 * @param string $string The string to be escaped.

	 * @return string The escaped string.
*/
function escape_string($string)

	 * @return string The escaped string.
*/
function escape_string($string)

Zeile 935Zeile 953
	}

/**

	}

/**

	 * Frees the resources of a MySQLi query.

	 * Frees the resources of a PgSQL query.

	 *

	 *

	 * @param object The query to destroy.
* @return boolean Returns true on success, false on faliure

	 * @param resource $query The query to destroy.
* @return boolean Returns true on success, false on failure

	 */
function free_result($query)
{

	 */
function free_result($query)
{

Zeile 948Zeile 966
	/**
* Escape a string used within a like command.
*

	/**
* Escape a string used within a like command.
*

	 * @param string The string to be escaped.

	 * @param string $string The string to be escaped.

	 * @return string The escaped string.
*/
function escape_string_like($string)
{

	 * @return string The escaped string.
*/
function escape_string_like($string)
{

		return $this->escape_string(str_replace(array('%', '_') , array('\\%' , '\\_') , $string));

		return $this->escape_string(str_replace(array('\\', '%', '_') , array('\\\\', '\\%' , '\\_') , $string));

	}

/**

	}

/**

Zeile 978Zeile 996
	/**
* Optimizes a specific table.
*

	/**
* Optimizes a specific table.
*

	 * @param string The name of the table to be optimized.

	 * @param string $table The name of the table to be optimized.

	 */
function optimize_table($table)
{

	 */
function optimize_table($table)
{

Zeile 988Zeile 1006
	/**
* Analyzes a specific table.
*

	/**
* Analyzes a specific table.
*

	 * @param string The name of the table to be analyzed.

	 * @param string $table The name of the table to be analyzed.

	 */
function analyze_table($table)
{

	 */
function analyze_table($table)
{

Zeile 998Zeile 1016
	/**
* Show the "create table" command for a specific table.
*

	/**
* Show the "create table" command for a specific table.
*

	 * @param string The name of the table.

	 * @param string $table The name of the table.

	 * @return string The pg command to create the specified table.
*/
function show_create_table($table)

	 * @return string The pg command to create the specified table.
*/
function show_create_table($table)

Zeile 1081Zeile 1099
		");

$primary_key = array();

		");

$primary_key = array();

 
		$primary_key_name = '';

$unique_keys = array();


// We do this in two steps. It makes placing the comma easier
while($row = $this->fetch_array($query))
{
if($row['primary_key'] == 't')


// We do this in two steps. It makes placing the comma easier
while($row = $this->fetch_array($query))
{
if($row['primary_key'] == 't')

			{

			{

				$primary_key[] = $row['column_name'];
$primary_key_name = $row['index_name'];

				$primary_key[] = $row['column_name'];
$primary_key_name = $row['index_name'];

 
			}

if($row['unique_key'] == 't')
{
$unique_keys[$row['index_name']][] = $row['column_name'];

			}
}

if(!empty($primary_key))
{
$lines[] = " CONSTRAINT $primary_key_name PRIMARY KEY (".implode(', ', $primary_key).")";

			}
}

if(!empty($primary_key))
{
$lines[] = " CONSTRAINT $primary_key_name PRIMARY KEY (".implode(', ', $primary_key).")";

 
		}

foreach($unique_keys as $key_name => $key_columns)
{
$lines[] = " CONSTRAINT $key_name UNIQUE (".implode(', ', $key_columns).")";

		}

$table_lines .= implode(", \n", $lines);

		}

$table_lines .= implode(", \n", $lines);

Zeile 1106Zeile 1137
	/**
* Show the "show fields from" command for a specific table.
*

	/**
* Show the "show fields from" command for a specific table.
*

	 * @param string The name of the table.
* @return string Field info for that table

	 * @param string $table The name of the table.
* @return array Field info for that table

	 */
function show_fields_from($table)
{

	 */
function show_fields_from($table)
{

Zeile 1119Zeile 1150
			FROM information_schema.columns
WHERE table_name = '{$this->table_prefix}{$table}'
");

			FROM information_schema.columns
WHERE table_name = '{$this->table_prefix}{$table}'
");

 
		$field_info = array();

		while($field = $this->fetch_array($query))
{
if($field['field'] == $primary_key)

		while($field = $this->fetch_array($query))
{
if($field['field'] == $primary_key)

Zeile 1135Zeile 1167
	/**
* Returns whether or not the table contains a fulltext index.
*

	/**
* Returns whether or not the table contains a fulltext index.
*

	 * @param string The name of the table.
* @param string Optionally specify the name of the index.

	 * @param string $table The name of the table.
* @param string $index Optionally specify the name of the index.

	 * @return boolean True or false if the table has a fulltext index or not.
*/
function is_fulltext($table, $index="")

	 * @return boolean True or false if the table has a fulltext index or not.
*/
function is_fulltext($table, $index="")

Zeile 1147Zeile 1179
	/**
* Returns whether or not this database engine supports fulltext indexing.
*

	/**
* Returns whether or not this database engine supports fulltext indexing.
*

	 * @param string The table to be checked.

	 * @param string $table The table to be checked.

	 * @return boolean True or false if supported or not.
*/

function supports_fulltext($table)

	 * @return boolean True or false if supported or not.
*/

function supports_fulltext($table)

	{
return false;
}

	{
return false;
}


/**
* Returns whether or not this database engine supports boolean fulltext matching.
*


/**
* Returns whether or not this database engine supports boolean fulltext matching.
*

	 * @param string The table to be checked.

	 * @param string $table The table to be checked.

	 * @return boolean True or false if supported or not.
*/
function supports_fulltext_boolean($table)

	 * @return boolean True or false if supported or not.
*/
function supports_fulltext_boolean($table)

Zeile 1170Zeile 1202
	/**
* Creates a fulltext index on the specified column in the specified table with optional index name.
*

	/**
* Creates a fulltext index on the specified column in the specified table with optional index name.
*

	 * @param string The name of the table.
* @param string Name of the column to be indexed.
* @param string The index name, optional.


	 * @param string $table The name of the table.
* @param string $column Name of the column to be indexed.
* @param string $name The index name, optional.
* @return bool

	 */
function create_fulltext_index($table, $column, $name="")

	 */
function create_fulltext_index($table, $column, $name="")

	{

	{

		return false;
}

/**
* Drop an index with the specified name from the specified table
*

		return false;
}

/**
* Drop an index with the specified name from the specified table
*

	 * @param string The name of the table.
* @param string The name of the index.

	 * @param string $table The name of the table.
* @param string $name The name of the index.

	 */
function drop_index($table, $name)
{

	 */
function drop_index($table, $name)
{

Zeile 1196Zeile 1229
	/**
* Checks to see if an index exists on a specified table
*

	/**
* Checks to see if an index exists on a specified table
*

	 * @param string The name of the table.
* @param string The name of the index.


	 * @param string $table The name of the table.
* @param string $index The name of the index.
* @return bool Returns whether index exists

	 */
function index_exists($table, $index)
{

	 */
function index_exists($table, $index)
{

Zeile 1212Zeile 1246
		if($exists)
{
return true;

		if($exists)
{
return true;

		}
else
{

		}
else
{

			return false;
}
}

			return false;
}
}

Zeile 1222Zeile 1256
	/**
* Drop an table with the specified table
*

	/**
* Drop an table with the specified table
*

	 * @param string The name of the table.
* @param boolean hard drop - no checking
* @param boolean use table prefix

	 * @param string $table The name of the table.
* @param boolean $hard hard drop - no checking
* @param boolean $table_prefix use table prefix

	 */
function drop_table($table, $hard=false, $table_prefix=true)
{

	 */
function drop_table($table, $hard=false, $table_prefix=true)
{

Zeile 1251Zeile 1285

$query = $this->query("SELECT column_name FROM information_schema.constraint_column_usage WHERE table_name = '{$table}' and constraint_name = '{$table}_pkey' LIMIT 1");
$field = $this->fetch_field($query, 'column_name');


$query = $this->query("SELECT column_name FROM information_schema.constraint_column_usage WHERE table_name = '{$table}' and constraint_name = '{$table}_pkey' LIMIT 1");
$field = $this->fetch_field($query, 'column_name');





		// Do we not have a primary field?
if($field)
{

		// Do we not have a primary field?
if($field)
{

Zeile 1262Zeile 1296
	/**
* Renames a table
*

	/**
* Renames a table
*

	 * @param string The old table name
* @param string the new table name
* @param boolean use table prefix


	 * @param string $old_table The old table name
* @param string $new_table the new table name
* @param boolean $table_prefix use table prefix
* @return resource

	 */
function rename_table($old_table, $new_table, $table_prefix=true)
{

	 */
function rename_table($old_table, $new_table, $table_prefix=true)
{

Zeile 1283Zeile 1318
	/**
* Replace contents of table with values
*

	/**
* Replace contents of table with values
*

	 * @param string The table
* @param array The replacements
* @param mixed The default field(s)
* @param boolean Whether or not to return an insert id. True by default


	 * @param string $table The table
* @param array $replacements The replacements
* @param string|array $default_field The default field(s)
* @param boolean $insert_id Whether or not to return an insert id. True by default
* @return int|resource|bool Returns either the insert id (if a new row is inserted and $insert_id is true), a boolean (if $insert_id is wrong) or the query resource (if a row is updated)

	 */
function replace_query($table, $replacements=array(), $default_field="", $insert_id=true)
{
global $mybb;

	 */
function replace_query($table, $replacements=array(), $default_field="", $insert_id=true)
{
global $mybb;





		if($default_field == "")

		if($default_field == "")

		{

		{

			$query = $this->write_query("SELECT column_name FROM information_schema.constraint_column_usage WHERE table_name = '{$this->table_prefix}{$table}' and constraint_name = '{$this->table_prefix}{$table}_pkey' LIMIT 1");
$main_field = $this->fetch_field($query, 'column_name');

			$query = $this->write_query("SELECT column_name FROM information_schema.constraint_column_usage WHERE table_name = '{$this->table_prefix}{$table}' and constraint_name = '{$this->table_prefix}{$table}_pkey' LIMIT 1");
$main_field = $this->fetch_field($query, 'column_name');

		}

		}

		else

		else

		{

		{

			$main_field = $default_field;
}


			$main_field = $default_field;
}


		$update = false;
if(is_array($main_field) && !empty($main_field))
{
$search_bit = array();
$string = '';
foreach($main_field as $field)
{
if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])
{
$search_bit[] = "{$field} = ".$replacements[$field];
}
else
{
$search_bit[] = "{$field} = ".$this->quote_val($replacements[$field]);
}
}

$search_bit = implode(" AND ", $search_bit);
$query = $this->write_query("SELECT COUNT(".$main_field[0].") as count FROM {$this->table_prefix}{$table} WHERE {$search_bit} LIMIT 1");
if($this->fetch_field($query, "count") == 1)
{
$update = true;

		$update = false;
$search_bit = array();

if(!is_array($main_field))
{
$main_field = array($main_field);
}

foreach($main_field as $field)
{
if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])
{
$search_bit[] = "{$field} = ".$replacements[$field];
}
else
{
$search_bit[] = "{$field} = ".$this->quote_val($replacements[$field]);






			}

			}

 
		}
$search_bit = implode(" AND ", $search_bit);
$query = $this->write_query("SELECT COUNT(".$main_field[0].") as count FROM {$this->table_prefix}{$table} WHERE {$search_bit} LIMIT 1");
if($this->fetch_field($query, "count") == 1)
{
$update = true;
}

if($update === true)
{
return $this->update_query($table, $replacements, $search_bit);

		}
else
{

		}
else
{

			$query = $this->write_query("SELECT {$main_field} FROM {$this->table_prefix}{$table}");

while($column = $this->fetch_array($query))
{
if($column[$main_field] == $replacements[$main_field])
{
$update = true;
break;
}
}
}

if($update === true)
{
if(is_array($main_field))
{
return $this->update_query($table, $replacements, $search_bit);
}
else
{
return $this->update_query($table, $replacements, "{$main_field}=".$this->quote_val($replacements[$main_field]));
}
}
else
{
return $this->insert_query($table, $replacements, $insert_id);

			return $this->insert_query($table, $replacements, $insert_id);


























		}
}

		}
}










/**
* @param string $table
* @param string $append
*
* @return string
*/

	function build_fields_string($table, $append="")
{
$fields = $this->show_fields_from($table);

	function build_fields_string($table, $append="")
{
$fields = $this->show_fields_from($table);

		$comma = '';


		$comma = $fieldstring = '';


		foreach($fields as $key => $field)
{
$fieldstring .= $comma.$append.$field['Field'];

		foreach($fields as $key => $field)
{
$fieldstring .= $comma.$append.$field['Field'];

Zeile 1369Zeile 1392
		}

return $fieldstring;

		}

return $fieldstring;

	}

	}


/**
* Drops a column
*


/**
* Drops a column
*

	 * @param string The table
* @param string The column name


	 * @param string $table The table
* @param string $column The column name
* @return resource

	 */
function drop_column($table, $column)
{

	 */
function drop_column($table, $column)
{

Zeile 1385Zeile 1409
	/**
* Adds a column
*

	/**
* Adds a column
*

	 * @param string The table
* @param string The column name
* @param string the new column definition


	 * @param string $table The table
* @param string $column The column name
* @param string $definition the new column definition
* @return resource

	 */
function add_column($table, $column, $definition)
{

	 */
function add_column($table, $column, $definition)
{

Zeile 1397Zeile 1422
	/**
* Modifies a column
*

	/**
* Modifies a column
*

	 * @param string The table
* @param string The column name
* @param string the new column definition
* @param boolean Whether to drop or set a column
* @param boolean The new default value (if one is to be set)


	 * @param string $table The table
* @param string $column The column name
* @param string $new_definition the new column definition
* @param boolean|string $new_not_null Whether to "drop" or "set" the NOT NULL attribute (no change if false)
* @param boolean|string $new_default_value The new default value, or false to drop the attribute
* @return bool Returns true if all queries are executed successfully or false if one of them failed

	 */
function modify_column($table, $column, $new_definition, $new_not_null=false, $new_default_value=false)
{

	 */
function modify_column($table, $column, $new_definition, $new_not_null=false, $new_default_value=false)
{

Zeile 1413Zeile 1439
		}

if($new_not_null !== false)

		}

if($new_not_null !== false)

		{

		{

			$set_drop = "DROP";

if(strtolower($new_not_null) == "set")
{
$set_drop = "SET";

			$set_drop = "DROP";

if(strtolower($new_not_null) == "set")
{
$set_drop = "SET";

			}


			}


			$result2 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} {$set_drop} NOT NULL");
}


			$result2 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} {$set_drop} NOT NULL");
}


		if($new_default_value !== false)

		if($new_default_value !== null)

		{

		{

			$result3 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} SET DEFAULT {$new_default_value}");
}
else
{
$result3 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} DROP DEFAULT");




			if($new_default_value !== false)
{
$result3 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} SET DEFAULT {$new_default_value}");
}
else
{
$result3 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} DROP DEFAULT");
}

		}

return $result1 && $result2 && $result3;

		}

return $result1 && $result2 && $result3;

Zeile 1439Zeile 1468
	/**
* Renames a column
*

	/**
* Renames a column
*

	 * @param string The table
* @param string The old column name
* @param string the new column name
* @param string the new column definition
* @param boolean Whether to drop or set a column
* @param boolean The new default value (if one is to be set)


	 * @param string $table The table
* @param string $old_column The old column name
* @param string $new_column the new column name
* @param string $new_definition the new column definition
* @param boolean|string $new_not_null Whether to "drop" or "set" the NOT NULL attribute (no change if false)
* @param boolean|string $new_default_value The new default value, or false to drop the attribute
* @return bool Returns true if all queries are executed successfully

	 */
function rename_column($table, $old_column, $new_column, $new_definition, $new_not_null=false, $new_default_value=false)
{

	 */
function rename_column($table, $old_column, $new_column, $new_definition, $new_not_null=false, $new_default_value=false)
{

Zeile 1456Zeile 1486
	/**
* Sets the table prefix used by the simple select, insert, update and delete functions
*

	/**
* Sets the table prefix used by the simple select, insert, update and delete functions
*

	 * @param string The new table prefix

	 * @param string $prefix The new table prefix

	 */
function set_table_prefix($prefix)
{

	 */
function set_table_prefix($prefix)
{

Zeile 1466Zeile 1496
	/**
* Fetched the total size of all mysql tables or a specific table
*

	/**
* Fetched the total size of all mysql tables or a specific table
*

	 * @param string The table (optional)

	 * @param string $table The table (optional)

	 * @return integer the total size of all mysql tables or a specific table
*/
function fetch_size($table='')

	 * @return integer the total size of all mysql tables or a specific table
*/
function fetch_size($table='')

Zeile 1490Zeile 1520
	/**
* Fetch a list of database character sets this DBMS supports
*

	/**
* Fetch a list of database character sets this DBMS supports
*

	 * @return array Array of supported character sets with array key being the name, array value being display name. False if unsupported

	 * @return array|bool Array of supported character sets with array key being the name, array value being display name. False if unsupported

	 */
function fetch_db_charsets()
{

	 */
function fetch_db_charsets()
{

Zeile 1500Zeile 1530
	/**
* Fetch a database collation for a particular database character set
*

	/**
* Fetch a database collation for a particular database character set
*

	 * @param string The database character set
* @return string The matching database collation, false if unsupported

	 * @param string $charset The database character set
* @return string|bool The matching database collation, false if unsupported

	 */
function fetch_charset_collation($charset)
{

	 */
function fetch_charset_collation($charset)
{

Zeile 1531Zeile 1561
	/**
* Binary database fields require special attention.
*

	/**
* Binary database fields require special attention.
*

	 * @param string Binary value

	 * @param string $string Binary value

	 * @return string Encoded binary value
*/
function escape_binary($string)

	 * @return string Encoded binary value
*/
function escape_binary($string)

Zeile 1542Zeile 1572
	/**
* Unescape binary data.
*

	/**
* Unescape binary data.
*

	 * @param string Binary value

	 * @param string $string Binary value

	 * @return string Encoded binary value
*/
function unescape_binary($string)

	 * @return string Encoded binary value
*/
function unescape_binary($string)