From a287a34c215903d3452023d74149eb5880125715 Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Mon, 5 Nov 2012 23:19:59 +0200 Subject: Refactored DB Forge - PDO subdrivers are isolated from each other now. - Added compatibility for pretty much all of the features, for every DB platform. - Unified the way that stuff works in general. - Fixes issue #1005. --- .../drivers/pdo/subdrivers/pdo_4d_forge.php | 209 +++++++++++++++++++ .../drivers/pdo/subdrivers/pdo_cubrid_forge.php | 173 ++++++++++++++++ .../drivers/pdo/subdrivers/pdo_dblib_forge.php | 136 ++++++++++++ .../drivers/pdo/subdrivers/pdo_firebird_forge.php | 228 +++++++++++++++++++++ .../drivers/pdo/subdrivers/pdo_ibm_forge.php | 146 +++++++++++++ .../drivers/pdo/subdrivers/pdo_informix_forge.php | 155 ++++++++++++++ .../drivers/pdo/subdrivers/pdo_mysql_forge.php | 198 ++++++++++++++++++ .../drivers/pdo/subdrivers/pdo_oci_forge.php | 133 ++++++++++++ .../drivers/pdo/subdrivers/pdo_odbc_forge.php | 62 ++++++ .../drivers/pdo/subdrivers/pdo_pgsql_forge.php | 193 +++++++++++++++++ .../drivers/pdo/subdrivers/pdo_sqlite_forge.php | 228 +++++++++++++++++++++ .../drivers/pdo/subdrivers/pdo_sqlsrv_forge.php | 136 ++++++++++++ 12 files changed, 1997 insertions(+) create mode 100644 system/database/drivers/pdo/subdrivers/pdo_4d_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_informix_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_oci_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php create mode 100644 system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php (limited to 'system/database/drivers/pdo/subdrivers') diff --git a/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php b/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php new file mode 100644 index 000000000..231ad53a4 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php @@ -0,0 +1,209 @@ + 'INT', + 'SMALLINT' => 'INT', + 'INT' => 'INT64', + 'INT32' => 'INT64' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = FALSE; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_table, $table, $field); + } + + // No method of modifying columns is supported + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['null'] + .$field['unique'] + .$field['auto_increment']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + case 'BIGINT': + $attribites['TYPE'] = 'INT64'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE'; + + // UNIQUE must be used with NOT NULL + $field['null'] = ' NOT NULL'; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + { + if (stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' AUTO_INCREMENT'; + } + elseif (strcasecmp($field['type'], 'UUID') === 0) + { + $field['auto_increment'] = ' AUTO_GENERATE'; + } + } + } + +} + +/* End of file pdo_4d_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_4d_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php b/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php new file mode 100644 index 000000000..c01a0fb81 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php @@ -0,0 +1,173 @@ + 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'BIGINT' => 'NUMERIC', + 'FLOAT' => 'DOUBLE', + 'REAL' => 'DOUBLE' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $sqls[] = $sql.' CHANGE '.$field[$i]['_literal']; + } + else + { + $sqls[] = $sql.' CHANGE '.$this->_process_column($field[$i]); + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' AS '.$this->db->escape_identifiers($field[$i]['name']); + } + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table = NULL) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} + +/* End of file pdo_cubrid_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php b/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php new file mode 100644 index 000000000..fb33127fd --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php @@ -0,0 +1,136 @@ + 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} + +/* End of file pdo_dblib_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php b/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php new file mode 100644 index 000000000..88c53510a --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php @@ -0,0 +1,228 @@ + 'INTEGER', + 'INTEGER' => 'INT64', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name + * @return string + */ + public function create_database($db_name) + { + // Firebird databases are flat files, so a path is required + + // Hostname is needed for remote access + empty($this->db->hostname) OR $db_name = $this->hostname.':'.$db_name; + + return parent::create_database('"'.$db_name.'"'); + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name = '') + { + if ( ! ibase_drop_db($this->conn_id)) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field), $sql .= $alter_type.' '; $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (isset($field[$i]['type'])) + { + $sqls[] = $sql.' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER '.$this->db->escape_identifiers($field[$i]['name']) + .' SET '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = 'UPDATE "RDB$RELATION_FIELDS" SET "RDB$NULL_FLAG" = ' + .($field[$i]['null'] === TRUE ? 'NULL' : '1') + .' WHERE "RDB$FIELD_NAME" = '.$this->db->escape($field[$i]['name']) + .' AND "RDB$RELATION_NAME" = '.$this->db->escape($table); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' ALTER '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INT': + $attributes['TYPE'] = 'INTEGER'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'INT64'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} + +/* End of file pdo_firebird_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php b/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php new file mode 100644 index 000000000..6a2c9b87e --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php @@ -0,0 +1,146 @@ + 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = FALSE; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'CHANGE') + { + $alter_type = 'MODIFY'; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE'; + + // UNIQUE must be used with NOT NULL + $field['null'] = ' NOT NULL'; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} + +/* End of file pdo_ibm_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php b/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php new file mode 100644 index 000000000..715a7cbba --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php @@ -0,0 +1,155 @@ + 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'REAL' => 'DOUBLE PRECISION', + 'SMALLFLOAT' => 'DOUBLE PRECISION' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = ', '; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'CHANGE') + { + $alter_type = 'MODIFY'; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'BYTE': + case 'TEXT': + case 'BLOB': + case 'CLOB': + $attributes['UNIQUE'] = FALSE; + if (isset($attributes['DEFAULT'])) + { + unset($attributes['DEFAULT']); + } + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE CONSTRAINT '.$this->db->escape_identifiers($field['name']); + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} + +/* End of file pdo_informix_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_informix_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php b/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php new file mode 100644 index 000000000..dc856ed2c --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php @@ -0,0 +1,198 @@ +_create_table .= ' DEFAULT CHARSET '.$this->db->char_set.' COLLATE '.$this->db->dbcollat; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP') + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = ($alter_type === 'ADD') + ? "\n\tADD ".$field[$i]['_literal'] + : "\n\tMODIFY ".$field[$i]['_literal']; + } + else + { + if ($alter_type === 'ADD') + { + $field[$i]['_literal'] = "\n\tADD "; + } + else + { + $field[$i]['_literal'] = empty($field['new_name']) ? "\n\tMODIFY " : "\n\tCHANGE "; + } + + $field[$i] = $field['_literal'].$this->_process_column($field[$i]); + } + } + + return array($sql.implode(',', $field)); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : $this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique']; + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table = NULL) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} + +/* End of file pdo_mysql_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php b/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php new file mode 100644 index 000000000..dbcb64d31 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php @@ -0,0 +1,133 @@ +db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = "\n\t".$field[$i]['_literal']; + } + else + { + $field[$i]['_literal'] = "\n\t".$this->_process_column($field[$i]); + if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + } + + $sql .= ' '.$alter_type.' '; + $sql .= (count($field) === 1) + ? $fields[0] + : '('.implode(',', $field).')'; + + // RENAME COLUMN must be executed after MODIFY + array_unshift($sqls, $sql); + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported - sequences and triggers must be used instead + } + +} + +/* End of file pdo_oci_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_oci_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php b/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php new file mode 100644 index 000000000..cd6b19c68 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php @@ -0,0 +1,62 @@ + 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INT4' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'INT8' => 'NUMERIC', + 'BIGINT' => 'NUMERIC', + 'REAL' => 'DOUBLE PRECISION', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * @return void + */ + public function __construct() + { + parent::__construct(); + + if (version_compare($this->db->version(), '9.0', '>')) + { + $this->create_table_if = 'CREATE TABLE IF NOT EXISTS'; + } + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field), $sql .= $alter_type.' '; $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (version_compare($this->db->version(), '8', '>=') && isset($field[$i]['type'])) + { + $sqls[] = $sql.' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER '.$this->db->escape_identifiers($field[$i]['name']) + .' SET '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = $sql.' ALTER '.$this->db->escape_identifiers($field[$i]['name']) + .($field[$i]['null'] === TRUE ? ' DROP NOT NULL' : ' SET NOT NULL'); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + // Reset field lenghts for data types that don't support it + if (isset($attributes['CONSTRAINT']) && stripos($attributes['TYPE'], 'int') !== FALSE) + { + $attributes['CONSTRAINT'] = NULL; + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + { + $field['type'] = ($field['type'] === 'NUMERIC') + ? 'BIGSERIAL' + : 'SERIAL'; + } + } + +} + +/* End of file pdo_pgsql_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php b/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php new file mode 100644 index 000000000..414826212 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php @@ -0,0 +1,228 @@ +db->version(), '3.3', '<')) + { + $this->_create_table_if = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name (ignored) + * @return bool + */ + public function create_database($db_name = '') + { + // In SQLite, a database is created when you connect to the database. + // We'll return TRUE so that an error isn't generated + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name = '') + { + // In SQLite, a database is dropped when we delete a file + if (@file_exists($this->db->database)) + { + // We need to close the pseudo-connection first + $this->db->close(); + if ( ! @unlink($this->db->database)) + { + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP' OR $alter_type === 'CHANGE') + { + // drop_column(): + // BEGIN TRANSACTION; + // CREATE TEMPORARY TABLE t1_backup(a,b); + // INSERT INTO t1_backup SELECT a,b FROM t1; + // DROP TABLE t1; + // CREATE TABLE t1(a,b); + // INSERT INTO t1 SELECT a,b FROM t1_backup; + // DROP TABLE t1_backup; + // COMMIT; + + return FALSE; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'] + .$field['auto_increment'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'ENUM': + case 'SET': + $attributes['TYPE'] = 'TEXT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['type'] = 'INTEGER PRIMARY KEY'; + $field['default'] = ''; + $field['null'] = ''; + $field['unique'] = ''; + $field['auto_increment'] = ' AUTOINCREMENT'; + + $this->primary_keys = array(); + } + } + +} + +/* End of file pdo_sqlite_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php new file mode 100644 index 000000000..c62720d48 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php @@ -0,0 +1,136 @@ + 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} + +/* End of file pdo_sqlsrv_forge.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php */ \ No newline at end of file -- cgit v1.2.3-24-g4f1b