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<?php
/**
* TInlineParameterMapParser class file.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @link https://github.com/pradosoft/prado
* @copyright Copyright © 2005-2016 The PRADO Group
* @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
* @package System.Data.SqlMap.Configuration
*/
/**
* TInlineParameterMapParser class.
*
* The inline parameter map syntax lets you embed the property name,
* the property type, the column type, and a null value replacement into a
* parametrized SQL statement.
*
* @author Wei Zhuo <weizho[at]gmail[dot]com>
* @package System.Data.SqlMap.Configuration
* @since 3.1
*/
class TInlineParameterMapParser
{
/**
* Regular expression for parsing inline parameter maps.
*/
const PARAMETER_TOKEN_REGEXP = '/#([^#]+)#/';
/**
* Parse the sql text for inline parameters.
* @param string sql text
* @param array file and node details for exception message.
* @return array 'sql' and 'parameters' name value pairs.
*/
public function parse($sqlText, $scope)
{
$matches = array();
$mappings = array();
preg_match_all(self::PARAMETER_TOKEN_REGEXP, $sqlText, $matches);
for($i = 0, $k=count($matches[1]); $i<$k; $i++)
{
$mappings[] = $this->parseMapping($matches[1][$i], $scope);
$sqlText = str_replace($matches[0][$i], '?', $sqlText);
}
return array('sql'=>$sqlText, 'parameters'=>$mappings);
}
/**
* Parse inline parameter with syntax as
* #propertyName,type=string,dbype=Varchar,nullValue=N/A,handler=string#
* @param string parameter token
* @param array file and node details for exception message.
*/
protected function parseMapping($token, $scope)
{
$mapping = new TParameterProperty;
$properties = explode(',', $token);
$mapping->setProperty(trim(array_shift($properties)));
foreach($properties as $property)
{
$prop = explode('=',$property);
$name = trim($prop[0]); $value=trim($prop[1]);
if($mapping->canSetProperty($name))
$mapping->{'set'.$name}($value);
else
{
throw new TSqlMapUndefinedException(
'sqlmap_undefined_property_inline_map',
$name, $scope['file'], $scope['node'], $token);
}
}
return $mapping;
}
}
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