From 2e08794d5de57d727abb2abe752a4479b3ec0242 Mon Sep 17 00:00:00 2001 From: Esen Sagynov Date: Tue, 9 Aug 2011 23:35:01 -0700 Subject: Added CUBRID Database Driver --- system/database/drivers/cubrid/cubrid_forge.php | 284 ++++++++++++++++++++++++ 1 file changed, 284 insertions(+) create mode 100644 system/database/drivers/cubrid/cubrid_forge.php (limited to 'system/database/drivers/cubrid/cubrid_forge.php') diff --git a/system/database/drivers/cubrid/cubrid_forge.php b/system/database/drivers/cubrid/cubrid_forge.php new file mode 100644 index 000000000..c2c553f28 --- /dev/null +++ b/system/database/drivers/cubrid/cubrid_forge.php @@ -0,0 +1,284 @@ +$attributes) + { + // Numeric field names aren't allowed in databases, so if the key is + // numeric, we know it was assigned by PHP and the developer manually + // entered the field information, so we'll simply add it to the list + if (is_numeric($field)) + { + $sql .= "\n\t$attributes"; + } + else + { + $attributes = array_change_key_case($attributes, CASE_UPPER); + + $sql .= "\n\t".$this->db->_protect_identifiers($field); + + if (array_key_exists('NAME', $attributes)) + { + $sql .= ' '.$this->db->_protect_identifiers($attributes['NAME']).' '; + } + + if (array_key_exists('TYPE', $attributes)) + { + $sql .= ' '.$attributes['TYPE']; + + if (array_key_exists('CONSTRAINT', $attributes)) + { + switch ($attributes['TYPE']) + { + case 'decimal': + case 'float': + case 'numeric': + $sql .= '('.implode(',', $attributes['CONSTRAINT']).')'; + break; + case 'enum': // As of version 8.4.0 CUBRID does not support + // enum data type. + break; + case 'set': + $sql .= '("'.implode('","', $attributes['CONSTRAINT']).'")'; + break; + default: + $sql .= '('.$attributes['CONSTRAINT'].')'; + } + } + } + + if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE) + { + //$sql .= ' UNSIGNED'; + // As of version 8.4.0 CUBRID does not support UNSIGNED INTEGER data type. + // Will be supported in the next release as a part of MySQL Compatibility. + } + + if (array_key_exists('DEFAULT', $attributes)) + { + $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\''; + } + + if (array_key_exists('NULL', $attributes)) + { + $sql .= ($attributes['NULL'] === TRUE) ? '' : ' NOT NULL'; + } + + if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE) + { + $sql .= ' AUTO_INCREMENT'; + } + + if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE) + { + $sql .= ' UNIQUE'; + } + } + + // don't add a comma on the end of the last field + if (++$current_field_count < count($fields)) + { + $sql .= ','; + } + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Create Table + * + * @access private + * @param string the table name + * @param mixed the fields + * @param mixed primary key(s) + * @param mixed key(s) + * @param boolean should 'IF NOT EXISTS' be added to the SQL + * @return bool + */ + function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + { + $sql = 'CREATE TABLE '; + + if ($if_not_exists === TRUE) + { + //$sql .= 'IF NOT EXISTS '; + // As of version 8.4.0 CUBRID does not support this SQL syntax. + } + + $sql .= $this->db->_escape_identifiers($table)." ("; + + $sql .= $this->_process_fields($fields); + + // If there is a PK defined + if (count($primary_keys) > 0) + { + $key_name = "pk_" . $table . "_" . + $this->db->_protect_identifiers(implode('_', $primary_keys)); + + $primary_keys = $this->db->_protect_identifiers($primary_keys); + $sql .= ",\n\tCONSTRAINT " . $key_name . " PRIMARY KEY(" . implode(', ', $primary_keys) . ")"; + } + + if (is_array($keys) && count($keys) > 0) + { + foreach ($keys as $key) + { + if (is_array($key)) + { + $key_name = $this->db->_protect_identifiers(implode('_', $key)); + $key = $this->db->_protect_identifiers($key); + } + else + { + $key_name = $this->db->_protect_identifiers($key); + $key = array($key_name); + } + + $sql .= ",\n\tKEY {$key_name} (" . implode(', ', $key) . ")"; + } + } + + $sql .= "\n);"; + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Drop Table + * + * @access private + * @return string + */ + function _drop_table($table) + { + return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table); + } + + // -------------------------------------------------------------------- + + /** + * Alter table query + * + * Generates a platform-specific query so that a table can be altered + * Called by add_column(), drop_column(), and column_alter(), + * + * @access private + * @param string the ALTER type (ADD, DROP, CHANGE) + * @param string the column name + * @param array fields + * @param string the field after which we should add the new field + * @return object + */ + function _alter_table($alter_type, $table, $fields, $after_field = '') + { + $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type "; + + // DROP has everything it needs now. + if ($alter_type == 'DROP') + { + return $sql.$this->db->_protect_identifiers($fields); + } + + $sql .= $this->_process_fields($fields); + + if ($after_field != '') + { + $sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Rename a table + * + * Generates a platform-specific query so that a table can be renamed + * + * @access private + * @param string the old table name + * @param string the new table name + * @return string + */ + function _rename_table($table_name, $new_table_name) + { + $sql = 'RENAME TABLE '.$this->db->_protect_identifiers($table_name)." AS ".$this->db->_protect_identifiers($new_table_name); + return $sql; + } + +} + +/* End of file cubrid_forge.php */ +/* Location: ./system/database/drivers/cubrid/cubrid_forge.php */ \ No newline at end of file -- cgit v1.2.3-24-g4f1b