Vergleich inc/db_pgsql.php - 1.8.5 - 1.8.11

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Zeile 153Zeile 153
	/**
* 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 279Zeile 279
	/**
* 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;

		$this->last_query = $string;





		get_execution_time();

if(strtolower(substr(ltrim($string), 0, 5)) == 'alter')

		get_execution_time();

if(strtolower(substr(ltrim($string), 0, 5)) == 'alter')

Zeile 300Zeile 300
			if(strstr($string, 'CHANGE') !== false)
{
$string = str_replace(' CHANGE ', ' ALTER ', $string);

			if(strstr($string, 'CHANGE') !== false)
{
$string = str_replace(' CHANGE ', ' ALTER ', $string);

			}
}

			}
}


if($write_query && $this->write_link)
{
while(pg_connection_busy($this->write_link));
$this->current_link = &$this->write_link;


if($write_query && $this->write_link)
{
while(pg_connection_busy($this->write_link));
$this->current_link = &$this->write_link;

			pg_send_query($this->current_link, $string);

			pg_send_query($this->current_link, $string);

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

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

Zeile 316Zeile 316
			$this->current_link = &$this->read_link;
pg_send_query($this->current_link, $string);
$query = pg_get_result($this->current_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 339Zeile 339
	/**
* 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 $this->query($query, $hide_errors, 1);

	 * @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.
*

	 * 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)
{

	 */
function explain_query($string, $qtime)
{

Zeile 360Zeile 360
		{
$query = pg_query($this->current_link, "EXPLAIN $string");
$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

		{
$query = pg_query($this->current_link, "EXPLAIN $string");
$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n".

				"<tr>\n".

				"<tr>\n".

				"<td colspan=\"8\" style=\"background-color: #ccc;\"><strong>#".$this->query_count." - Select Query</strong></td>\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: #fefefe;\"><span style=\"font-family: Courier; font-size: 14px;\">".htmlspecialchars_uni($string)."</span></td>\n".
"</tr>\n".

				"</tr>\n".
"<tr>\n".
"<td colspan=\"8\" style=\"background-color: #fefefe;\"><span style=\"font-family: Courier; font-size: 14px;\">".htmlspecialchars_uni($string)."</span></td>\n".
"</tr>\n".

				"<tr style=\"background-color: #efefef;\">\n".
"<td><strong>Info</strong></td>\n".
"</tr>\n";

				"<tr style=\"background-color: #efefef;\">\n".
"<td><strong>Info</strong></td>\n".
"</tr>\n";

Zeile 380Zeile 380
			$this->explain .=
"<tr>\n".
"<td colspan=\"8\" style=\"background-color: #fff;\">Query Time: ".format_time_duration($qtime)."</td>\n".

			$this->explain .=
"<tr>\n".
"<td colspan=\"8\" style=\"background-color: #fff;\">Query Time: ".format_time_duration($qtime)."</td>\n".

				"</tr>\n".

				"</tr>\n".

				"</table>\n".
"<br />\n";
}

				"</table>\n".
"<br />\n";
}

Zeile 407Zeile 407
	/**
* 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:

			case PGSQL_NUM:
case PGSQL_BOTH:

				break;

				break;

			default:
$resulttype = PGSQL_ASSOC;
break;
}

$array = pg_fetch_array($query, NULL, $resulttype);

			default:
$resulttype = PGSQL_ASSOC;
break;
}

$array = pg_fetch_array($query, NULL, $resulttype);





		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)
{

	 */
function fetch_field($query, $field, $row=false)
{

Zeile 445Zeile 446
		else
{
return pg_fetch_result($query, $row, $field);

		else
{
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 464
	/**
* 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.

	 * @return int The number of rows in the result.

	 */

	 */

	function num_rows($query)
{
return pg_num_rows($query);

	function num_rows($query)
{
return pg_num_rows($query);

Zeile 489Zeile 491
		// 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');

	}

/**

	}

/**

	 * Close the connection with the DBMS.
*
*/

	 * Close the connection with the DBMS.
*
*/

Zeile 506Zeile 508
		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 530
	/**
* 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 547
		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 592Zeile 597
	/**
* 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 int The number of fields.
*/
function num_fields($query)

Zeile 603Zeile 608
	/**
* 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 635
	/**
* 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 653Zeile 658
	/**
* 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.
*/
function field_exists($field, $table)

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

Zeile 676Zeile 681
	/**
* 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 700
	/**
* 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 738Zeile 743
	/**
* 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)
{

Zeile 785Zeile 790
	/**
* 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)
{

Zeile 795Zeile 800

if(!is_array($array))
{


if(!is_array($array))
{

			return false;

			return;

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

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

Zeile 809Zeile 814
				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;

				}

				}

				else
{
$values[$field] = $this->quote_val($value);

				else
{
$values[$field] = $this->quote_val($value);

Zeile 823Zeile 828
			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)

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

Zeile 868Zeile 873
			}
$comma = ', ';
}

			}
$comma = ', ';
}

		if(!empty($where))
{
$query .= " WHERE $where";
}

		if(!empty($where))
{
$query .= " WHERE $where";
}

		return $this->write_query("
UPDATE {$this->table_prefix}$table
SET $query
");
}


		return $this->write_query("
UPDATE {$this->table_prefix}$table
SET $query
");
}


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

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

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

		}
else
{

		}
else
{

			$quoted = $quote . $value . $quote;
}


			$quoted = $quote . $value . $quote;
}


Zeile 895Zeile 906
	/**
* 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 929
	/**
* 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 932Zeile 943
			$string = addslashes($string);
}
return $string;

			$string = addslashes($string);
}
return $string;

	}

/**
* Frees the resources of a MySQLi query.
*
* @param object The query to destroy.
* @return boolean Returns true on success, false on faliure
*/

	}

/**
* Frees the resources of a PgSQL query.
*
* @param resource $query The query to destroy.
* @return boolean Returns true on success, false on failure
*/

	function free_result($query)

	function free_result($query)

	{

	{

		return pg_free_result($query);
}

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

		return pg_free_result($query);
}

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

	 * @return string The escaped string.
*/
function escape_string_like($string)
{
return $this->escape_string(str_replace(array('%', '_') , array('\\%' , '\\_') , $string));

	}

/**

	}

/**

	 * Gets the current version of PgSQL.
*
* @return string Version of PgSQL.

	 * Gets the current version of PgSQL.
*
* @return string Version of PgSQL.

Zeile 971Zeile 982
		$version = pg_version($this->current_link);

$this->version = $version['server'];

		$version = pg_version($this->current_link);

$this->version = $version['server'];





		return $this->version;

		return $this->version;

	}


	}


	/**
* 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 987Zeile 998

/**
* 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 1009
	/**
* 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 1048Zeile 1059
				{
$line .= '('.($row['lengthvar'] - 4).')';
}

				{
$line .= '('.($row['lengthvar'] - 4).')';
}

			}


			}


			if(strpos($row['type'], 'numeric') !== false)

			if(strpos($row['type'], 'numeric') !== false)

			{

			{

				$line .= '('.sprintf("%s,%s", (($row['lengthvar'] >> 16) & 0xffff), (($row['lengthvar'] - 4) & 0xffff)).')';

				$line .= '('.sprintf("%s,%s", (($row['lengthvar'] >> 16) & 0xffff), (($row['lengthvar'] - 4) & 0xffff)).')';

			}

			}


if(!empty($row['rowdefault']))
{
$line .= " DEFAULT {$row['rowdefault']}";


if(!empty($row['rowdefault']))
{
$line .= " DEFAULT {$row['rowdefault']}";

			}


			}


			if($row['notnull'] == 't')
{
$line .= ' NOT NULL';

			if($row['notnull'] == 't')
{
$line .= ' NOT NULL';

			}


			}


			$lines[] = $line;
}


			$lines[] = $line;
}


Zeile 1078Zeile 1089
			LEFT JOIN pg_attribute ta ON (ta.attrelid = bc.oid AND ta.attrelid = i.indrelid AND ta.attnum = i.indkey[ia.attnum-1])
WHERE bc.relname = '{$this->table_prefix}{$table}'
ORDER BY index_name, tab_name, column_name

			LEFT JOIN pg_attribute ta ON (ta.attrelid = bc.oid AND ta.attrelid = i.indrelid AND ta.attnum = i.indkey[ia.attnum-1])
WHERE bc.relname = '{$this->table_prefix}{$table}'
ORDER BY index_name, tab_name, column_name

		");

		");


$primary_key = array();


$primary_key = array();

 
		$primary_key_name = '';


// We do this in two steps. It makes placing the comma easier
while($row = $this->fetch_array($query))


// We do this in two steps. It makes placing the comma easier
while($row = $this->fetch_array($query))

Zeile 1093Zeile 1105
		}

if(!empty($primary_key))

		}

if(!empty($primary_key))

		{

		{

			$lines[] = "  CONSTRAINT $primary_key_name PRIMARY KEY (".implode(', ', $primary_key).")";
}

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

			$lines[] = "  CONSTRAINT $primary_key_name PRIMARY KEY (".implode(', ', $primary_key).")";
}

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





		return $table_lines;
}

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

		return $table_lines;
}

/**
* 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)

	{

	{

		$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");
$primary_key = $this->fetch_field($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");
$primary_key = $this->fetch_field($query, 'column_name');


Zeile 1119Zeile 1131
			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)
{
$field['extra'] = 'auto_increment';
}

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





			$field_info[] = array('Extra' => $field['extra'], 'Field' => $field['field']);
}

			$field_info[] = array('Extra' => $field['extra'], 'Field' => $field['field']);
}





		return $field_info;
}

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

		return $field_info;
}

/**
* 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="")

	{
return false;
}

/**

	{
return false;
}

/**

	 * 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.
*/


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


Zeile 1158Zeile 1171

/**
* 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.

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

	 */

	 */

	function supports_fulltext_boolean($table)

	function supports_fulltext_boolean($table)

	{

	{

		return false;
}

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

		return false;
}

/**
* 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="")
{
return false;

	 */
function create_fulltext_index($table, $column, $name="")
{
return false;

	}

/**

	}

/**

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

	 * 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 1195Zeile 1209

/**
* 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)
{
$err = $this->error_reporting;

	function index_exists($table, $index)
{
$err = $this->error_reporting;

Zeile 1210Zeile 1225
		$this->error_reporting = $err;

if($exists)

		$this->error_reporting = $err;

if($exists)

		{

		{

			return true;

			return true;

		}
else
{

		}
else
{

			return false;

			return false;

		}

		}

	}

/**
* 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)

	{
if($table_prefix == false)
{
$table_prefix = "";
}
else

	{
if($table_prefix == false)
{
$table_prefix = "";
}
else

		{
$table_prefix = $this->table_prefix;
}

if($hard == false)

		{
$table_prefix = $this->table_prefix;
}

if($hard == false)

		{

		{

			if($this->table_exists($table))
{
$this->write_query('DROP TABLE '.$table_prefix.$table);

			if($this->table_exists($table))
{
$this->write_query('DROP TABLE '.$table_prefix.$table);

Zeile 1247Zeile 1262
		else
{
$this->write_query('DROP TABLE '.$table_prefix.$table);

		else
{
$this->write_query('DROP TABLE '.$table_prefix.$table);

		}


		}


		$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');


Zeile 1261Zeile 1276

/**
* 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, $table_prefix=true)
{
if($table_prefix == false)

	function rename_table($old_table, $new_table, $table_prefix=true)
{
if($table_prefix == false)

Zeile 1283Zeile 1299
	/**
* 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)
{

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

Zeile 1303Zeile 1320
		}

$update = false;

		}

$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;
}
}
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;
}
}

		$search_bit = array();

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































		}


		}


		if($update === true)

		foreach($main_field as $field)

		{

		{

			if(is_array($main_field))
{
return $this->update_query($table, $replacements, $search_bit);
}

			if(isset($mybb->binary_fields[$table][$field]) && $mybb->binary_fields[$table][$field])
{
$search_bit[] = "{$field} = ".$replacements[$field];
}

			else
{

			else
{

				return $this->update_query($table, $replacements, "{$main_field}=".$this->quote_val($replacements[$main_field]));

				$search_bit[] = "{$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
{
return $this->insert_query($table, $replacements, $insert_id);
}
}


		else
{
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)
{


foreach($fields as $key => $field)
{

Zeile 1374Zeile 1378
	/**
* 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 1390
	/**
* 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 1403
	/**
* 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 $new_not_null Whether to drop or set a column
* @param boolean $new_default_value The new default value (if one is to be set)
* @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 1439Zeile 1446
	/**
* 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 $new_not_null Whether to drop or set a column
* @param boolean $new_default_value The new default value (if one is to be set)
* @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 1464
	/**
* 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 1474
	/**
* 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 1498
	/**
* 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 1508
	/**
* 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 1539
	/**
* 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 1550
	/**
* 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)