Viewing file:  MSSQLFunctions.php (4.23 KB) -rw-r--r--
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<?php
class MSSQLFunctions extends DBFunctions
{
function __construct( $params )
{
parent::__construct($params);
$this->strLeftWrapper = "[";
$this->strRightWrapper = "]";
}
/**
* @param String str
* @return String
*/
public function escapeLIKEpattern( $str )
{
return str_replace(array('[', '%', '_'), array('[[]', '[%]', '[_]'), $str);
}
/**
* @param String str
* @return String
*/
public function prepareString( $str )
{
return "N'".$this->addSlashes($str)."'";
}
/**
* @param String str
* @return String
*/
public function addSlashesBinary( $str )
{
return "0x".bin2hex($str);
}
/**
* adds wrappers to field name if required
* @param String strName
* @return String
*/
public function addFieldWrappers( $strName )
{
if( substr($strName, 0, 1) == $this->strLeftWrapper )
return $strName;
return $this->strLeftWrapper.$strName.$this->strRightWrapper;
}
/**
* @param String dbval
* @return String
*/
public function upper( $dbval )
{
return "upper(".$dbval.")";
}
/**
* @param Mixed $val
* @return String
*/
public function addDateQuotes( $val )
{
if( $val == "" || $val === null )
return 'null';
return "convert(datetime,'".$this->addSlashes($val)."',120)";
}
/**
* It's called for Contains and Starts with searches
* @param Mixed value
* @param Number type (optional)
* @return String
*/
public function field2char($value, $type = 3)
{
if( IsCharType($type) )
return $value;
if( !IsDateFieldType($type) )
return "convert(varchar(250),".$value.")";
return "convert(varchar(50),".$value.", 120)";
}
/**
* @param Mixed value
* @param Number type
* @return String
*/
public function field2time($value, $type)
{
return $value;
}
/**
* Get the auto generated SQL string used in the last query
* @param String key
* @param String table
* @param String oraSequenceName (optional)
* @return String
*/
public function getInsertedIdSQL( $key = null, $table = null, $oraSequenceName = false )
{
return "SELECT @@IDENTITY";
}
/**
* @param String strName
* @return String
*/
public function timeToSecWrapper( $strName )
{
$wrappedFieldName = $this->addTableWrappers($strName);
return "(DATEPART(HOUR, " . $wrappedFieldName . ") * 3600) + (DATEPART(MINUTE, " . $wrappedFieldName . ") * 60) + (DATEPART(SECOND, " . $wrappedFieldName . "))";
}
public function limitedQuery( $connection, $strSQL, $skip, $total, $applyLimit )
{
if( $applyLimit && $total >= 0 )
$strSQL = AddTop( $strSQL, $skip + $total );
$qResult = $connection->query( $strSQL );
$qResult->seekRecord( $skip );
return $qResult;
}
public function caseSensitiveComparison( $val1, $val2 )
{
return $val1 . ' = ' . $val2 .' COLLATE SQL_Latin1_General_CP1_CS_AS';
}
public function intervalExpressionString( $expr, $interval )
{
return DBFunctions::intervalExprLeft( $expr, $interval );
}
public function intervalExpressionNumber( $expr, $interval )
{
return DBFunctions::intervalExprFloor( $expr, $interval );
}
public function intervalExpressionDate( $expr, $interval )
{
if($interval == 1) // DATE_INTERVAL_YEAR
return "datepart(yyyy,".$expr.")*10000+0101";
if($interval == 2) // DATE_INTERVAL_QUARTER
return "datepart(yyyy,".$expr.")*10000 + datepart(qq,".$expr.")*100+1";
if($interval == 3) // DATE_INTERVAL_MONTH
return "datepart(yyyy,".$expr.")*10000+datepart(mm,".$expr.")*100+1";
if($interval == 4) // DATE_INTERVAL_WEEK
return "datepart(yyyy,".$expr.")*10000+(datepart(ww,".$expr.")-1)*100+01";
if($interval == 5) // DATE_INTERVAL_DAY
return "datepart(yyyy,".$expr.")*10000+datepart(mm,".$expr.")*100+datepart(dd,".$expr.")";
if($interval == 6) // DATE_INTERVAL_HOUR
return "datepart(yyyy,".$expr.")*1000000+datepart(mm,".$expr.")*10000+datepart(dd,".$expr.")*100+datepart(hh,".$expr.")";
if($interval == 7) // DATE_INTERVAL_MINUTE
return "datepart(yyyy,".$expr.")*100000000+datepart(mm,".$expr.")*1000000+datepart(dd,".$expr.")*10000+datepart(hh,".$expr.")*100+datepart(mi,".$expr.")";
return $expr;
}
}
?>
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