351 lines
12 KiB
PHP
351 lines
12 KiB
PHP
<?php
|
|
// vim: set et ts=4 sw=4 fdm=marker:
|
|
// +----------------------------------------------------------------------+
|
|
// | PHP versions 4 and 5 |
|
|
// +----------------------------------------------------------------------+
|
|
// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox, |
|
|
// | Stig. S. Bakken, Lukas Smith |
|
|
// | All rights reserved. |
|
|
// +----------------------------------------------------------------------+
|
|
// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
|
|
// | API as well as database abstraction for PHP applications. |
|
|
// | This LICENSE is in the BSD license style. |
|
|
// | |
|
|
// | Redistribution and use in source and binary forms, with or without |
|
|
// | modification, are permitted provided that the following conditions |
|
|
// | are met: |
|
|
// | |
|
|
// | Redistributions of source code must retain the above copyright |
|
|
// | notice, this list of conditions and the following disclaimer. |
|
|
// | |
|
|
// | Redistributions in binary form must reproduce the above copyright |
|
|
// | notice, this list of conditions and the following disclaimer in the |
|
|
// | documentation and/or other materials provided with the distribution. |
|
|
// | |
|
|
// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
|
|
// | Lukas Smith nor the names of his contributors may be used to endorse |
|
|
// | or promote products derived from this software without specific prior|
|
|
// | written permission. |
|
|
// | |
|
|
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
|
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
|
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
|
|
// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
|
|
// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
|
|
// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
|
|
// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
|
|
// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
|
|
// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
|
|
// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
|
|
// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|
|
// | POSSIBILITY OF SUCH DAMAGE. |
|
|
// +----------------------------------------------------------------------+
|
|
// | Author: Lukas Smith <smith@pooteeweet.org> |
|
|
// +----------------------------------------------------------------------+
|
|
//
|
|
// $Id$
|
|
//
|
|
|
|
require_once 'MDB2/Driver/Datatype/Common.php';
|
|
|
|
/**
|
|
* MDB2 FrontbaseSQL driver
|
|
*
|
|
* @package MDB2
|
|
* @category Database
|
|
* @author Lukas Smith <smith@pooteeweet.org>
|
|
*/
|
|
class MDB2_Driver_Datatype_fbsql extends MDB2_Driver_Datatype_Common
|
|
{
|
|
// {{{ _baseConvertResult()
|
|
|
|
/**
|
|
* general type conversion method
|
|
*
|
|
* @param mixed $value refernce to a value to be converted
|
|
* @param string $type specifies which type to convert to
|
|
* @param string $rtrim if text should be rtrimmed
|
|
* @return object a MDB2 error on failure
|
|
* @access protected
|
|
*/
|
|
function _baseConvertResult($value, $type, $rtrim = true)
|
|
{
|
|
if (null === $value) {
|
|
return null;
|
|
}
|
|
switch ($type) {
|
|
case 'boolean':
|
|
return $value == 'T';
|
|
case 'time':
|
|
if ($value[0] == '+') {
|
|
return substr($value, 1);
|
|
} else {
|
|
return $value;
|
|
}
|
|
}
|
|
return parent::_baseConvertResult($value, $type, $rtrim);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getTypeDeclaration()
|
|
|
|
/**
|
|
* Obtain DBMS specific SQL code portion needed to declare an text type
|
|
* field to be used in statements like CREATE TABLE.
|
|
*
|
|
* @param array $field associative array with the name of the properties
|
|
* of the field being declared as array indexes. Currently, the types
|
|
* of supported field properties are as follows:
|
|
*
|
|
* length
|
|
* Integer value that determines the maximum length of the text
|
|
* field. If this argument is missing the field should be
|
|
* declared to have the longest length allowed by the DBMS.
|
|
*
|
|
* default
|
|
* Text value to be used as default for this field.
|
|
*
|
|
* notnull
|
|
* Boolean flag that indicates whether this field is constrained
|
|
* to not be set to null.
|
|
* @return string DBMS specific SQL code portion that should be used to
|
|
* declare the specified field.
|
|
* @access public
|
|
*/
|
|
function getTypeDeclaration($field)
|
|
{
|
|
$db =& $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
|
|
switch ($field['type']) {
|
|
case 'text':
|
|
$length = !empty($field['length'])
|
|
? $field['length'] : $db->options['default_text_field_length'];
|
|
$fixed = !empty($field['fixed']) ? $field['fixed'] : false;
|
|
return $fixed ? 'CHAR('.$length.')' : 'VARCHAR('.$length.')';
|
|
case 'clob':
|
|
return 'CLOB';
|
|
case 'blob':
|
|
return 'BLOB';
|
|
case 'integer':
|
|
return 'INT';
|
|
case 'boolean':
|
|
return 'BOOLEAN';
|
|
case 'date':
|
|
return 'DATE';
|
|
case 'time':
|
|
return 'TIME';
|
|
case 'timestamp':
|
|
return 'TIMESTAMP';
|
|
case 'float':
|
|
return 'FLOAT';
|
|
case 'decimal':
|
|
$length = !empty($field['length']) ? $field['length'] : 18;
|
|
$scale = !empty($field['scale']) ? $field['scale'] : $db->options['decimal_places'];
|
|
return 'DECIMAL('.$length.','.$scale.')';
|
|
}
|
|
return '';
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteBoolean()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteBoolean($value, $quote, $escape_wildcards)
|
|
{
|
|
return ($value ? 'True' : 'False');
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteDate()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteDate($value, $quote, $escape_wildcards)
|
|
{
|
|
return 'DATE'.$this->_quoteText($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteTimestamp()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteTimestamp($value, $quote, $escape_wildcards)
|
|
{
|
|
return 'TIMESTAMP'.$this->_quoteText($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _quoteTime()
|
|
|
|
/**
|
|
* Convert a text value into a DBMS specific format that is suitable to
|
|
* compose query statements.
|
|
*
|
|
* @param string $value text string value that is intended to be converted.
|
|
* @param bool $quote determines if the value should be quoted and escaped
|
|
* @param bool $escape_wildcards if to escape escape wildcards
|
|
* @return string text string that represents the given argument value in
|
|
* a DBMS specific format.
|
|
* @access protected
|
|
*/
|
|
function _quoteTime($value, $quote, $escape_wildcards)
|
|
{
|
|
return 'TIME'.$this->_quoteText($value, $quote, $escape_wildcards);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _mapNativeDatatype()
|
|
|
|
/**
|
|
* Maps a native array description of a field to a MDB2 datatype and length
|
|
*
|
|
* @param array $field native field description
|
|
* @return array containing the various possible types, length, sign, fixed
|
|
* @access public
|
|
*/
|
|
function _mapNativeDatatype($field)
|
|
{
|
|
$db_type = strtolower($field['type']);
|
|
$length = $field['length'];
|
|
if ($length == '-1' && !empty($field['atttypmod'])) {
|
|
$length = $field['atttypmod'] - 4;
|
|
}
|
|
$type = array();
|
|
$unsigned = $fixed = null;
|
|
switch ($db_type) {
|
|
case 'tinyint':
|
|
$type[] = 'integer';
|
|
$unsigned = preg_match('/ unsigned/i', $field['type']);
|
|
$length = 1;
|
|
break;
|
|
case 'smallint':
|
|
$type[] = 'integer';
|
|
$unsigned = false;
|
|
$length = 2;
|
|
if ($length == '2') {
|
|
$type[] = 'boolean';
|
|
if (preg_match('/^(is|has)/', $field['name'])) {
|
|
$type = array_reverse($type);
|
|
}
|
|
}
|
|
break;
|
|
case 'int':
|
|
case 'integer':
|
|
$type[] = 'integer';
|
|
$unsigned = false;
|
|
$length = 4;
|
|
break;
|
|
case 'longint':
|
|
$type[] = 'integer';
|
|
$unsigned = false;
|
|
$length = 8;
|
|
break;
|
|
case 'boolean':
|
|
$type[] = 'boolean';
|
|
$length = null;
|
|
break;
|
|
case 'character varying':
|
|
case 'char varying':
|
|
case 'varchar':
|
|
case 'national character varying':
|
|
case 'national char varying':
|
|
case 'nchar varying':
|
|
$fixed = false;
|
|
case 'unknown':
|
|
case 'char':
|
|
case 'character':
|
|
case 'national character':
|
|
case 'national char':
|
|
case 'nchar':
|
|
$type[] = 'text';
|
|
if (strstr($db_type, 'text')) {
|
|
$type[] = 'clob';
|
|
$type = array_reverse($type);
|
|
}
|
|
if ($fixed !== false) {
|
|
$fixed = true;
|
|
}
|
|
break;
|
|
case 'date':
|
|
$type[] = 'date';
|
|
$length = null;
|
|
break;
|
|
case 'timestamp':
|
|
case 'timestamp with time zone':
|
|
$type[] = 'timestamp';
|
|
$length = null;
|
|
break;
|
|
case 'time':
|
|
case 'time with time zone':
|
|
$type[] = 'time';
|
|
$length = null;
|
|
break;
|
|
case 'float':
|
|
case 'double precision':
|
|
case 'real':
|
|
$type[] = 'float';
|
|
break;
|
|
case 'decimal':
|
|
case 'numeric':
|
|
$type[] = 'decimal';
|
|
break;
|
|
case 'blob':
|
|
$type[] = 'blob';
|
|
$length = null;
|
|
break;
|
|
case 'clob':
|
|
$type[] = 'clob';
|
|
$length = null;
|
|
break;
|
|
default:
|
|
$db =& $this->getDBInstance();
|
|
if (MDB2::isError($db)) {
|
|
return $db;
|
|
}
|
|
return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
|
|
'unknown database attribute type: '.$db_type, __FUNCTION__);
|
|
}
|
|
|
|
if ((int)$length <= 0) {
|
|
$length = null;
|
|
}
|
|
|
|
return array($type, $length, $unsigned, $fixed);
|
|
}
|
|
|
|
// }}}
|
|
}
|
|
?>
|