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dotclear._no/inc/libs/clearbricks/dbschema/class.dbschema.php
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306
dotclear._no/inc/libs/clearbricks/dbschema/class.dbschema.php
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<?php
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/**
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* @interface i_dbSchema
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*
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* @package Clearbricks
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* @subpackage DBSchema
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*
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* @copyright Olivier Meunier & Association Dotclear
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* @copyright GPL-2.0-only
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*/
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interface i_dbSchema
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{
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/**
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* This method should return an array of all tables in database for the current connection.
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*
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* @return array
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*/
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public function db_get_tables();
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/**
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* This method should return an associative array of columns in given table
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* <var>$table</var> with column names in keys. Each line value is an array
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* with following values:
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*
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* - [type] data type (string)
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* - [len] data length (integer or null)
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* - [null] is null? (boolean)
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* - [default] default value (string)
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*
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* @param string $table Table name
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* @return array
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*/
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function db_get_columns($table);
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/**
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* This method should return an array of keys in given table
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* <var>$table</var>. Each line value is an array with following values:
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*
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* - [name] index name (string)
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* - [primary] primary key (boolean)
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* - [unique] unique key (boolean)
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* - [cols] columns (array)
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*
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* @param string $table Table name
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* @return array
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*/
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function db_get_keys($table);
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/**
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* This method should return an array of indexes in given table
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* <var>$table</var>. Each line value is an array with following values:
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*
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* - [name] index name (string)
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* - [type] index type (string)
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* - [cols] columns (array)
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*
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* @param string $table Table name
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* @return array
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*/
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function db_get_indexes($table);
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/**
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* This method should return an array of foreign keys in given table
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* <var>$table</var>. Each line value is an array with following values:
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*
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* - [name] key name (string)
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* - [c_cols] child columns (array)
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* - [p_table] parent table (string)
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* - [p_cols] parent columns (array)
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* - [update] on update statement (string)
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* - [delete] on delete statement (string)
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*
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* @param string $table Table name
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* @return array
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*/
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function db_get_references($table);
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function db_create_table($name, $fields);
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function db_create_field($table, $name, $type, $len, $null, $default);
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function db_create_primary($table, $name, $cols);
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function db_create_unique($table, $name, $cols);
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function db_create_index($table, $name, $type, $cols);
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function db_create_reference($name, $c_table, $c_cols, $p_table, $p_cols, $update, $delete);
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function db_alter_field($table, $name, $type, $len, $null, $default);
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function db_alter_primary($table, $name, $newname, $cols);
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function db_alter_unique($table, $name, $newname, $cols);
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function db_alter_index($table, $name, $newname, $type, $cols);
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function db_alter_reference($name, $newname, $c_table, $c_cols, $p_table, $p_cols, $update, $delete);
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function db_drop_unique($table, $name);
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}
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/**
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* @class dbSchema
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*
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* @package Clearbricks
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* @subpackage DBSchema
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*/
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class dbSchema
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{
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protected $con;
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public function __construct($con)
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{
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$this->con = &$con;
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}
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public static function init($con)
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{
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$driver = $con->driver();
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$driver_class = $driver . 'Schema';
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if (!class_exists($driver_class)) {
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if (file_exists(dirname(__FILE__) . '/class.' . $driver . '.dbschema.php')) {
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require dirname(__FILE__) . '/class.' . $driver . '.dbschema.php';
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} else {
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trigger_error('Unable to load DB schema layer for ' . $driver, E_USER_ERROR);
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exit(1);
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}
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}
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return new $driver_class($con);
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}
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/**
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* Database data type to universal data type conversion.
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*
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* @param string $type Type name
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* @param integer $len Field length (in/out)
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* @param string $default Default field value (in/out)
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* @return string
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*/
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public function dbt2udt($type, &$len, &$default)
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{
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$c = [
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'bool' => 'boolean',
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'int2' => 'smallint',
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'int' => 'integer',
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'int4' => 'integer',
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'int8' => 'bigint',
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'float4' => 'real',
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'double precision' => 'float',
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'float8' => 'float',
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'decimal' => 'numeric',
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'character varying' => 'varchar',
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'character' => 'char'
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];
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if (isset($c[$type])) {
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return $c[$type];
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}
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return $type;
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}
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/**
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* Universal data type to database data tye conversion.
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*
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* @param string $type Type name
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* @param integer $len Field length (in/out)
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* @param string $default Default field value (in/out)
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* @return string
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*/
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public function udt2dbt($type, &$len, &$default)
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{
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return $type;
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}
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/**
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* Returns an array of all table names.
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*
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* @see i_dbSchema::db_get_tables
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* @return array
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*/
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public function getTables()
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{
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return $this->db_get_tables();
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}
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/**
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* Returns an array of columns (name and type) of a given table.
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*
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* @see i_dbSchema::db_get_columns
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*
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* @param string $table Table name
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* @return array
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*/
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public function getColumns($table)
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{
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return $this->db_get_columns($table);
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}
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/**
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* Returns an array of index of a given table.
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*
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* @see i_dbSchema::db_get_keys
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*
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* @param string $table Table name
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* @return array
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*/
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public function getKeys($table)
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{
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return $this->db_get_keys($table);
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}
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/**
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* Returns an array of indexes of a given table.
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*
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* @see i_dbSchema::db_get_index
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*
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* @param string $table Table name
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* @return array
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*/
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public function getIndexes($table)
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{
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return $this->db_get_indexes($table);
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}
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/**
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* Returns an array of foreign keys of a given table.
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*
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* @see i_dbSchema::db_get_references
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*
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* @param string $table Table name
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* @return array
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*/
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public function getReferences($table)
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{
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return $this->db_get_references($table);
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}
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public function createTable($name, $fields)
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{
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return $this->db_create_table($name, $fields);
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}
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public function createField($table, $name, $type, $len, $null, $default)
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{
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return $this->db_create_field($table, $name, $type, $len, $null, $default);
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}
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public function createPrimary($table, $name, $cols)
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{
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return $this->db_create_primary($table, $name, $cols);
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}
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public function createUnique($table, $name, $cols)
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{
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return $this->db_create_unique($table, $name, $cols);
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}
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public function createIndex($table, $name, $type, $cols)
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{
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return $this->db_create_index($table, $name, $type, $cols);
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}
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public function createReference($name, $c_table, $c_cols, $p_table, $p_cols, $update, $delete)
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{
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return $this->db_create_reference($name, $c_table, $c_cols, $p_table, $p_cols, $update, $delete);
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}
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public function alterField($table, $name, $type, $len, $null, $default)
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{
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return $this->db_alter_field($table, $name, $type, $len, $null, $default);
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}
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public function alterPrimary($table, $name, $newname, $cols)
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{
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return $this->db_alter_primary($table, $name, $newname, $cols);
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}
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public function alterUnique($table, $name, $newname, $cols)
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{
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return $this->db_alter_unique($table, $name, $newname, $cols);
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}
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public function alterIndex($table, $name, $newname, $type, $cols)
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{
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return $this->db_alter_index($table, $name, $newname, $type, $cols);
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}
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public function alterReference($name, $newname, $c_table, $c_cols, $p_table, $p_cols, $update, $delete)
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{
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return $this->db_alter_reference($name, $newname, $c_table, $c_cols, $p_table, $p_cols, $update, $delete);
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}
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public function dropUnique($table, $name)
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{
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return $this->db_drop_unique($table, $name);
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}
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public function flushStack()
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{
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}
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}
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