From 6b4bffab404f7fb6a19195b0a968cf8500cb30b3 Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Mon, 25 Jun 2012 02:29:20 +0300 Subject: Add pdo_4d subdriver --- .../drivers/pdo/subdrivers/pdo_4d_driver.php | 239 +++++++++++++++++++++ .../drivers/pdo/subdrivers/pdo_dblib_driver.php | 2 +- .../drivers/pdo/subdrivers/pdo_pgsql_driver.php | 2 +- .../drivers/pdo/subdrivers/pdo_sqlsrv_driver.php | 2 +- 4 files changed, 242 insertions(+), 3 deletions(-) create mode 100644 system/database/drivers/pdo/subdrivers/pdo_4d_driver.php (limited to 'system/database/drivers/pdo/subdrivers') diff --git a/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php new file mode 100644 index 000000000..a680a8475 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php @@ -0,0 +1,239 @@ +dsn)) + { + $this->dsn = '4D:host='.(empty($this->hostname) ? 'localhost' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 3) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + return 'SELECT '.$this->escape_identifiers('TABLE_NAME').' FROM '.$this->escape_identifiers('_USER_TABLES'); + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' WHERE '.$this->escape_identifiers('TABLE_NAME')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string the table name + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT '.$this->escape_identifiers('COLUMN_NAME').' FROM '.$this->escape_identifiers('_USER_COLUMNS') + .' WHERE '.$this->escape_identifiers('TABLE_NAME').' = '.$this->escape($table); + } + + // -------------------------------------------------------------------- + + /** + * Field data query + * + * Generates a platform-specific query so that the column data can be retrieved + * + * @param string the table name + * @return string + */ + protected function _field_data($table) + { + return 'SELECT * FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE).' LIMIT 1'; + } + + // -------------------------------------------------------------------- + + /** + * From Tables + * + * This function implicitly groups FROM tables so there is no confusion + * about operator precedence in harmony with SQL standards + * + * @param array + * @return string + */ + protected function _from_tables($tables) + { + return is_array($tables) ? implode(', ', $tables) : $tables; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string the table name + * @param array the update data + * @param array the where clause + * @param array the orderby clause (ignored) + * @param array the limit clause (ignored) + * @param array the like clause + * @return string + */ + protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + { + foreach ($values as $key => $val) + { + $valstr[] = $key.' = '.$val; + } + + $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); + + if ( ! empty($like)) + { + $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); + } + + return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' + * + * @param string the table name + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE TABLE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string the table name + * @param array the where clause + * @param array the like clause + * @param string the limit clause (ignored) + * @return string + */ + protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + { + $conditions = array(); + + empty($where) OR $conditions[] = implode(' ', $where); + empty($like) OR $conditions[] = implode(' ', $like); + + $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; + + return 'DELETE FROM '.$table.$conditions; + } + + // -------------------------------------------------------------------- + + /** + * Limit string + * + * Generates a platform-specific LIMIT clause + * + * @param string the sql query string + * @param int the number of rows to limit the query to + * @param int the offset value + * @return string + */ + protected function _limit($sql, $limit, $offset) + { + return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : ''); + } + +} + +/* End of file pdo_4d_driver.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_4d_driver.php */ \ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php index 042920714..3a2679f41 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php @@ -223,7 +223,7 @@ class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver { empty($where) OR $conditions[] = implode(' ', $where); empty($like) OR $conditions[] = implode(' ', $like); - $conditions = (count($conditions) > 0) ? ' WHERE '.implde(' AND ', $conditions) : ''; + $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; return ($limit) ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' diff --git a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php index 7abdc59ce..59ae853d6 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php @@ -265,7 +265,7 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { */ protected function _limit($sql, $limit, $offset) { - return $sql.' LIMIT '.$limit.($offset == 0 ? '' : ' OFFSET '.$offset); + return $sql.' LIMIT '.$limit.($offset ? '' : ' OFFSET '.$offset); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php index f7e242016..5afd749b4 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php @@ -278,7 +278,7 @@ class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver { empty($where) OR $conditions[] = implode(' ', $where); empty($like) OR $conditions[] = implode(' ', $like); - $conditions = (count($conditions) > 0) ? ' WHERE '.implde(' AND ', $conditions) : ''; + $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; return ($limit) ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' -- cgit v1.2.3-24-g4f1b