31st May 2010Individual column filtering with Show/Hide columns dynamically #2
"server_processing_filter_col.php" changed file from examples_support.
[code]
<?php
/* MySQL connection /
include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" );
$gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password'] ) or
die( 'Could not open connection to server' );
mysql_select_db( $gaSql['db'], $gaSql['link'] ) or
die( 'Could not select database '. $gaSql['db'] );
/ Paging /
$sLimit = "";
if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
{
$sLimit = "LIMIT ".mysql_real_escape_string( $_GET['iDisplayStart'] ).", ".
mysql_real_escape_string( $_GET['iDisplayLength'] );
}
/ Ordering /
if ( isset( $GET['iSortCol_0'] ) )
{
$sOrder = "ORDER BY ";
for ( $i=0 ; $i<mysql_real_escape_string( $_GET['iSortingCols'] ) ; $i++ )
{
$sOrder .= fnColumnToField(mysql_real_escape_string( $_GET['iSortCol'.$i] ))."
".mysql_real_escape_string( $GET['sSortDir'.$i] ) .", ";
}
$sOrder = substr_replace( $sOrder, "", -2 );
}
/ Filtering - NOTE this does not match the built-in DataTables filtering which does it
* word by word on any field. It's possible to do here, but concerned about efficiency
* on very large tables, and MySQL's regex functionality is very limited
/
$sWhere = "";
//this I add next variables
$aColumns = array( 'engine', 'browser', 'platform', 'version', 'grade' );
$orig_search_values=array("Search engines","Search browsers","Search platforms","Search versions",
"Search grades");
$array_cond = array();
///
///this I added
$i=0;
foreach($aColumns as $key=>$value) {
${$aColumns[$i]}=$_GET[$value];
if(${$aColumns[$i]} !='undefined' and ${$aColumns[$i]} !=$orig_search_values[$i])
$array_cond[]=array($value,${$aColumns[$i]});
$i++;
}
//till this
if ( $_GET['sSearch'] != "" )
{
$sWhere = "WHERE ( engine LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
"browser LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
"platform LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
"version LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
"grade LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' )";
}
///this deleted
/
for ( $i=0 ; $i<$GET['iColumns'] ; $i++ )
{
if ( $_GET['sSearch'.$i] != '' )
{
if ( $sWhere != "" )
{
$sWhere .= " AND ";
}
else
{
$sWhere .= "WHERE ";
}
$sWhere .= fnColumnToField($i) ." LIKE '%".mysql_real_escape_string( $GET['sSearch'.$i] )."%'";
}
}
*/
//this I added
foreach($array_cond as $cond)
{
if ( $sWhere != "" )
{
$sWhere .= " AND ";
}
else
{
$sWhere .= "WHERE ";
}
$sWhere .= $cond[0] ." LIKE '%".mysql_real_escape_string( $cond[1] )."%'";
}
//till this
$sQuery = "
SELECT SQL_CALC_FOUND_ROWS id, engine, browser, platform, version, grade
FROM ajax
$sWhere
$sOrder
$sLimit
";
$rResult = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$sQuery = "SELECT FOUND_ROWS()";
$rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
$iFilteredTotal = $aResultFilterTotal[0];
$sQuery = "
SELECT COUNT(id)
FROM ajax
";
$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultTotal = mysql_fetch_array($rResultTotal);
$iTotal = $aResultTotal[0];
$sOutput = '{';
$sOutput .= '"sEcho": '.intval($_GET['sEcho']).', ';
$sOutput .= '"iTotalRecords": '.$iTotal.', ';
$sOutput .= '"iTotalDisplayRecords": '.$iFilteredTotal.', ';
$sOutput .= '"aaData": [ ';
while ( $aRow = mysql_fetch_array( $rResult ) )
{
$sOutput .= "[";
$sOutput .= '"'.str_replace('"', '\"', $aRow['engine']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['browser']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['platform']).'",';
if ( $aRow['version'] == "0" )
$sOutput .= '"-",';
else
$sOutput .= '"'.str_replace('"', '\"', $aRow['version']).'",';
$sOutput .= '"'.str_replace('"', '\"', $aRow['grade']).'"';
$sOutput .= "],";
}
$sOutput = substr_replace( $sOutput, "", -1 );
$sOutput .= '] }';
echo $sOutput;
function fnColumnToField( $i )
{
if ( $i == 0 )
return "engine";
else if ( $i == 1 )
return "browser";
else if ( $i == 2 )
return "platform";
else if ( $i == 3 )
return "version";
else if ( $i == 4 )
return "grade";
}