Vergleich inc/db_pgsql.php - 1.8.6 - 1.8.38

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Zeile 23Zeile 23
	 * @var string
*/
public $short_title = "PostgreSQL";

	 * @var string
*/
public $short_title = "PostgreSQL";

 

/**
* The type of db software being used.
*
* @var string
*/
public $type;


/**
* A count of the number of queries.


/**
* A count of the number of queries.

Zeile 44Zeile 51
	 * @var boolean
*/
public $error_reporting = 1;

	 * @var boolean
*/
public $error_reporting = 1;





	/**
* The read database connection resource.

	/**
* The read database connection resource.

	 *
* @var resource

	 *
* @var resource

	 */
public $read_link;

	 */
public $read_link;


/**


/**

	 * The write database connection resource

	 * The write database connection resource

	 *
* @var resource
*/

	 *
* @var resource
*/

	public $write_link;

/**
* Reference to the last database connection resource used.

	public $write_link;

/**
* Reference to the last database connection resource used.

	 *
* @var resource
*/

	 *
* @var resource
*/

	public $current_link;

	public $current_link;


/**







/**
* @var array
*/
public $connections = array();

/**

	 * Explanation of a query.

	 * Explanation of a query.

	 *

	 *

	 * @var string
*/
public $explain;

	 * @var string
*/
public $explain;


/**


/**

	 * The current version of PgSQL.
*
* @var string

	 * The current version of PgSQL.
*
* @var string

Zeile 82Zeile 94

/**
* The current table type in use (myisam/innodb)


/**
* The current table type in use (myisam/innodb)

	 *
* @var string

	 *
* @var string

	 */
public $table_type = "myisam";


	 */
public $table_type = "myisam";


Zeile 121Zeile 133
	 * @var string
*/
public $engine = "pgsql";

	 * @var string
*/
public $engine = "pgsql";


/**


/**

	 * Weather or not this engine can use the search functionality
*
* @var boolean

	 * Weather or not this engine can use the search functionality
*
* @var boolean

Zeile 181Zeile 193
			}
}


			}
}


		$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 194Zeile 209
			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;
}


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


Zeile 219Zeile 234
				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'])

				{

				{

					$this->connect_string .= " port={$single_connection['port']}";

					$this->connect_string .= " port={$single_connection['port']}";

				}

				}


if($single_connection['hostname'] != "")


if($single_connection['hostname'] != "")

				{

				{

					$this->connect_string .= " host={$single_connection['hostname']}";

					$this->connect_string .= " host={$single_connection['hostname']}";

				}

				}


if($single_connection['password'])
{


if($single_connection['password'])
{

Zeile 239Zeile 258

$time_spent = get_execution_time();
$this->query_time += $time_spent;


$time_spent = get_execution_time();
$this->query_time += $time_spent;





				// Successful connection? break down brother!
if($this->$link)
{
$this->connections[] = "[".strtoupper($type)."] {$single_connection['username']}@{$single_connection['hostname']} (Connected in ".format_time_duration($time_spent).")";
break;

				// Successful connection? break down brother!
if($this->$link)
{
$this->connections[] = "[".strtoupper($type)."] {$single_connection['username']}@{$single_connection['hostname']} (Connected in ".format_time_duration($time_spent).")";
break;

				}

				}

				else
{
$this->connections[] = "<span style=\"color: red\">[FAILED] [".strtoupper($type)."] {$single_connection['username']}@{$single_connection['hostname']}</span>";
}
}

				else
{
$this->connections[] = "<span style=\"color: red\">[FAILED] [".strtoupper($type)."] {$single_connection['username']}@{$single_connection['hostname']}</span>";
}
}

		}


		}


		// No write server was specified (simple connection or just multiple servers) - mirror write link
if(!array_key_exists('write', $connections))
{
$this->write_link = &$this->read_link;

		// No write server was specified (simple connection or just multiple servers) - mirror write link
if(!array_key_exists('write', $connections))
{
$this->write_link = &$this->read_link;

		}


		}


		// Have no read connection?
if(!$this->read_link)

		// Have no read connection?
if(!$this->read_link)

		{

		{

			$this->error("[READ] Unable to connect to PgSQL server");

			$this->error("[READ] Unable to connect to PgSQL server");

			return false;

			return false;

		}
// No write?
else if(!$this->write_link)

		}
// No write?
else if(!$this->write_link)

Zeile 271Zeile 290
			$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;
}

/**
* Query the database.

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

/**
* Query the database.

	 *

	 *

	 * @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.

	 * @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.

Zeile 288Zeile 307
	{
global $mybb;


	{
global $mybb;


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

$this->last_query = $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();

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

		get_execution_time();

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

			{

			{

				$string = str_replace(' CHANGE ', ' ALTER ', $string);
}
}

				$string = str_replace(' CHANGE ', ' ALTER ', $string);
}
}

Zeile 376Zeile 395
					"<tr bgcolor=\"#ffffff\">\n".
"<td>".$table['QUERY PLAN']."</td>\n".
"</tr>\n";

					"<tr bgcolor=\"#ffffff\">\n".
"<td>".$table['QUERY PLAN']."</td>\n".
"</tr>\n";

			}

			}

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

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

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

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

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

		}
else
{
$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".
"</tr>\n".
"<tr style=\"background-color: #fefefe;\">\n".

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

Zeile 398Zeile 417
				"</tr>\n".
"</table>\n".
"<br />\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 441Zeile 460
		if($row === false)
{
$array = $this->fetch_array($query);

		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);

	}

/**

	}

/**

Zeile 479Zeile 500
	 */
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 490Zeile 509

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


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

		{

		{

			return 0;
}


			return 0;
}


Zeile 555Zeile 574
	 *
* @param string $string The string to present as an error.
* @param resource $query

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

	 */

	 */

	function error($string="", $query=null)
{
if($this->error_reporting)

	function error($string="", $query=null)
{
if($this->error_reporting)

Zeile 599Zeile 618
	 *
* @param resource $query The query ID.
* @return int The number of fields.

	 *
* @param resource $query The query ID.
* @return int The number of fields.

	 */

	 */

	function num_fields($query)
{
return pg_num_fields($query);

	function num_fields($query)
{
return pg_num_fields($query);

Zeile 621Zeile 640
		else
{
$query = $this->query("SELECT table_name FROM information_schema.tables WHERE table_schema='public'");

		else
{
$query = $this->query("SELECT table_name FROM information_schema.tables WHERE table_schema='public'");

		}

		}


$tables = array();
while($table = $this->fetch_array($query))


$tables = array();
while($table = $this->fetch_array($query))

Zeile 642Zeile 661
	{
// 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');

if($exists > 0)

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

if($exists > 0)

Zeile 729Zeile 748
		}

if(isset($options['limit_start']) && isset($options['limit']))

		}

if(isset($options['limit_start']) && isset($options['limit']))

		{

		{

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

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

Zeile 936Zeile 955
	{
if(function_exists("pg_escape_string"))
{

	{
if(function_exists("pg_escape_string"))
{

			$string = pg_escape_string($string);

			$string = pg_escape_string($this->read_link, $string);

		}
else
{

		}
else
{

Zeile 964Zeile 983
	 */
function escape_string_like($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 1080Zeile 1099
		}

// Get the listing of primary keys.

		}

// Get the listing of primary keys.

		$query = $this->write_query("

		$query = $this->write_query("

			SELECT ic.relname as index_name, bc.relname as tab_name, ta.attname as column_name, i.indisunique as unique_key, i.indisprimary as primary_key
FROM pg_class bc
LEFT JOIN pg_index i ON (bc.oid = i.indrelid)

			SELECT ic.relname as index_name, bc.relname as tab_name, ta.attname as column_name, i.indisunique as unique_key, i.indisprimary as primary_key
FROM pg_class bc
LEFT JOIN pg_index i ON (bc.oid = i.indrelid)

Zeile 1093Zeile 1112

$primary_key = array();
$primary_key_name = '';


$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))


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

Zeile 1101Zeile 1122
			{
$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))

		if(!empty($primary_key))

		{

		{

			$lines[] = "  CONSTRAINT $primary_key_name PRIMARY KEY (".implode(', ', $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 1127Zeile 1158
		$primary_key = $this->fetch_field($query, 'column_name');

$query = $this->write_query("

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

$query = $this->write_query("

			SELECT column_name as Field, data_type as Extra

			SELECT column_name, data_type, is_nullable, column_default, character_maximum_length, numeric_precision, numeric_precision_radix, numeric_scale

			FROM information_schema.columns
WHERE table_name = '{$this->table_prefix}{$table}'
");
$field_info = array();
while($field = $this->fetch_array($query))
{

			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)

			if($field['column_name'] == $primary_key)

			{

			{

				$field['extra'] = 'auto_increment';

























				$field['_key'] = 'PRI';
}
else
{
$field['_key'] = '';
}

if(stripos($field['column_default'], 'nextval') !== false)
{
$field['_extra'] = 'auto_increment';
}
else
{
$field['_extra'] = '';
}

// bit, character, text fields.
if(!is_null($field['character_maximum_length']))
{
$field['data_type'] .= '('.(int)$field['character_maximum_length'].')';
}
// numeric/decimal fields.
else if($field['numeric_precision_radix'] == 10 && !is_null($field['numeric_precision']) && !is_null($field['numeric_scale']))
{
$field['data_type'] .= '('.(int)$field['numeric_precision'].','.(int)$field['numeric_scale'].')';

			}


			}


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








			$field_info[] = array(
'Field' => $field['column_name'],
'Type' => $field['data_type'],
'Null' => $field['is_nullable'],
'Key' => $field['_key'],
'Default' => $field['column_default'],
'Extra' => $field['_extra'],
);

		}

return $field_info;

		}

return $field_info;

Zeile 1171Zeile 1233

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


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

	 *

	 *

	 * @param string $table The table to be checked.
* @return boolean True or false if supported or not.
*/
function supports_fulltext_boolean($table)

	 * @param string $table The table to be checked.
* @return boolean True or false if supported or not.
*/
function supports_fulltext_boolean($table)

	{
return false;
}

/**

	{
return false;
}

/**

	 * Creates a fulltext index on the specified column in the specified table with optional index name.
*
* @param string $table The name of the table.

	 * Creates a fulltext index on the specified column in the specified table with optional index name.
*
* @param string $table The name of the table.

Zeile 1191Zeile 1253
	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 $table The name of the table.

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

	 * @param string $name The name of the index.
*/
function drop_index($table, $name)

	 * @param string $name The name of the index.
*/
function drop_index($table, $name)

Zeile 1215Zeile 1277
	 * @return bool Returns whether index exists
*/
function index_exists($table, $index)

	 * @return bool Returns whether index exists
*/
function index_exists($table, $index)

	{

	{

		$err = $this->error_reporting;
$this->error_reporting = 0;


		$err = $this->error_reporting;
$this->error_reporting = 0;


Zeile 1251Zeile 1313
		{
$table_prefix = $this->table_prefix;
}

		{
$table_prefix = $this->table_prefix;
}

 

$table_prefix_bak = $this->table_prefix;
$this->table_prefix = '';
$fields = array_column($this->show_fields_from($table_prefix.$table), 'Field');


if($hard == false)
{


if($hard == false)
{

			if($this->table_exists($table))

			if($this->table_exists($table_prefix.$table))

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

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

// Do we not have a primary field?
if($field)
{
$this->write_query('DROP SEQUENCE {$table}_{$field}_id_seq');
}
}



















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

$this->table_prefix = $table_prefix_bak;

if(!empty($fields))
{
foreach($fields as &$field)
{
$field = "{$table_prefix}{$table}_{$field}_seq";
}
unset($field);

if(version_compare($this->get_version(), '8.2.0', '>='))
{
$fields = implode(', ', $fields);
$this->write_query("DROP SEQUENCE IF EXISTS {$fields}");
}
else
{
$fields = "'".implode("', '", $fields)."'";
$query = $this->query("SELECT sequence_name as field FROM information_schema.sequences WHERE sequence_name in ({$fields}) AND sequence_schema = 'public'");
while($row = $this->fetch_array($query))
{
$this->write_query("DROP SEQUENCE {$row['field']}");
}
}
}
}


	/**
* Renames a table
*

	/**
* Renames a table
*

Zeile 1287Zeile 1370
		if($table_prefix == false)
{
$table_prefix = "";

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

		}

		}

		else
{
$table_prefix = $this->table_prefix;
}

return $this->write_query("ALTER TABLE {$table_prefix}{$old_table} RENAME TO {$table_prefix}{$new_table}");

		else
{
$table_prefix = $this->table_prefix;
}

return $this->write_query("ALTER TABLE {$table_prefix}{$old_table} RENAME TO {$table_prefix}{$new_table}");

	}


	}


	/**
* Replace contents of table with values
*

	/**
* Replace contents of table with values
*

Zeile 1321Zeile 1404

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


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

		if(is_array($main_field) && !empty($main_field))








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

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

while($column = $this->fetch_array($query))

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
























			{

			{

				if($column[$main_field] == $replacements[$main_field])
{
$update = true;
break;
}

				$search_bit[] = "{$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)

		}

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]));
}
}

		{
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

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

Zeile 1388Zeile 1453
		{
$fieldstring .= $comma.$append.$field['Field'];
$comma = ',';

		{
$fieldstring .= $comma.$append.$field['Field'];
$comma = ',';

		}

		}


return $fieldstring;


return $fieldstring;

	}


	}


	/**
* Drops a column

	/**
* Drops a column

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

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

	 * @return resource
*/
function drop_column($table, $column)

	 * @return resource
*/
function drop_column($table, $column)

Zeile 1407Zeile 1472

/**
* Adds a column


/**
* Adds a column

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

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

	 * @param string $definition the new column definition
* @return resource

	 * @param string $definition the new column definition
* @return resource

	 */

	 */

	function add_column($table, $column, $definition)
{
return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ADD {$column} {$definition}");

	function add_column($table, $column, $definition)
{
return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ADD {$column} {$definition}");

Zeile 1424Zeile 1489
	 * @param string $table The table
* @param string $column The column name
* @param string $new_definition the new column definition

	 * @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)

	 * @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)

	 * @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)

Zeile 1433Zeile 1498
		$result1 = $result2 = $result3 = true;

if($new_definition !== false)

		$result1 = $result2 = $result3 = true;

if($new_definition !== false)

		{

		{

			$result1 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} TYPE {$new_definition}");

			$result1 = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ALTER COLUMN {$column} TYPE {$new_definition}");

		}

		}


if($new_not_null !== false)
{
$set_drop = "DROP";


if($new_not_null !== false)
{
$set_drop = "DROP";





			if(strtolower($new_not_null) == "set")

			if(strtolower($new_not_null) == "set")

			{

			{

				$set_drop = "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 1468Zeile 1536
	 * @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 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)

	 * @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)

	 * @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)

Zeile 1562Zeile 1630
	 */
function escape_binary($string)
{

	 */
function escape_binary($string)
{

		return "'".pg_escape_bytea($string)."'";

		return "'".pg_escape_bytea($this->read_link, $string)."'";

	}

/**

	}

/**