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<?php
/**
* TIbmMetaData class file.
*
* @author Cesar Ramos <cramos[at]gmail[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005-2007 PradoSoft
* @license http://www.pradosoft.com/license/
* @version $Id: TIbmMetaData.php 1807 2007-03-31 06:42:15Z wei $
* @package System.Data.ActiveRecord.Vendor
*/
Prado::using('System.Data.ActiveRecord.Vendor.TDbMetaDataCommon');
/**
* TIbmMetaData class.
*
* Column details for IBM DB2 database. Using php_pdo_ibm.dll extension.
*
* Does not support LIMIT and OFFSET criterias.
*
* @author Cesar Ramos <cramos[at]gmail[dot]com>
* @version $Id: TIbmMetaData.php 1807 2007-03-31 06:42:15Z wei $
* @package System.Data.ActiveRecord.Vendor
* @since 3.1
*/
class TIbmMetaData extends TDbMetaDataCommon
{
/**
* Build the SQL search string from the criteria object for IBM DB2 database.
* @param TDbConnection database connection.
* @param TActiveRecordCriteria search criteria.
* @return string SQL search.
*/
protected function getSqlFromCriteria($conn, $criteria)
{
if($criteria===null) return '';
$sql = '';
if(($condition = $criteria->getCondition())!==null)
$sql .= ' WHERE '.$condition;
$orders=array();
foreach($criteria->getOrdersBy() as $by=>$ordering)
$orders[] = $this->getOrdering($by, $ordering);
if(count($orders) > 0)
$sql .= ' ORDER BY '.implode(', ', $orders);
//if(($limit = $criteria->getLimit())!==null)
//{
// $sql .= ' FETCH FIRST '.intval($limit).' ROWS ONLY';
//}
return strlen($sql) > 0 ? $sql : '';
}
/**
* Lowercase the data keys, IBM DB2 returns uppercase column names
* @param mixed record row
* @return array record row
*/
public function postQueryRow($row)
{
if(!is_array($row)) return $row;
$result=array();
foreach($row as $k=>$v)
$result[strtolower($k)]=$v;
return $result;
}
/**
* Lowercase the data keys, IBM DB2 returns uppercase column names
* @param mixed record row
* @return array record row
*/
public function postQuery($rows)
{
$data = array();
foreach($rows as $k=>$v)
$data[$k] = $this->postQueryRow($v);
return $data;
}
public function getSearchRegExpCriteria($fields, $keywords)
{
if(strlen(trim($keywords)) == 0) return '';
$words = array();
preg_match_all('/([a-zA-Z0-9-+]+)/', $keywords, $words);
$result = array();
foreach($fields as $field)
{
$column = $this->getColumn($field);
if($this->isSearchableColumn($column))
$result[] = $this->getLikeCriteriaStr($column->getName(), $words[0]);
}
$a = '('.implode(' OR ', $result).')';
error_log($a);
return '('.implode(' OR ', $result).')';
}
protected function isSearchableColumn($column)
{
$type = strtolower($column->getType());
return $type === 'char' || $type === 'varchar';
}
protected function getLikeCriteriaStr($column, $words)
{
$result=array();
foreach($words as $word)
$result[] = "{$column} LIKE '%{$word}%'";
return '('.implode(' AND ', $result).')';
}
}
?>
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