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Updated: Server-side processing script for column re-ordering has been updated to take account of sNames parameter which is sent in from DataTables, and also brought up to date with the main server-side processing script.

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Changed: From the previous commit sNames sent from the client to server is now a comma seperated list of sNames and is always sent regardless of if names are given or not. This matches the sName formatting for the server-to-client return.
This commit is contained in:
Allan Jardine 2010-10-29 08:48:13 +01:00
parent e7ffbb13fd
commit a6365b3f69
2 changed files with 156 additions and 55 deletions
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204
examples/examples_support/server_processing_ordering.php
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@ -1,14 +1,77 @@
<?php <?php
/* MySQL connection */ /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" ); /* ;-) */ * Readme...
*
* This script is basically the same as the server_processing.php script, but with a couple of
* modifications to show how column reordering can be handled by DataTables. This is in two
* parts:
*
* 1. Data from server to client - notice that the $aColumns array below is in a different
* order to that from the array in server_processing.php, but DataTables will render the
* table in the same order. This reordering is done on the client-side by using the sNames
* parameter which is passed back, stating the order which the server is sending data back in.
* DataTables will compaire this to the sName parameter for each column and reorder as needed.
*
* 2. Data from client to server - in order that the columns can be sent to the server in
* any order (it is expected in this script that the server-side will always work with a static
* array which is not reordered dynamically) DataTables will send the parameter 'sNames' which
* like it's return counterpart is a comma seperated list of the column names, telling the
* server-side what order the columns are being shown on the client-side. As such it is now
* possible to realise what column sSearch_{i} (for example) refers to. This is done by a look
* up of the aColumns array from the names sent in. Note that I've used the same names for the
* db table columns and the html table columns to make things a little clearer, but this is not
* required.
*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Easy set variables
*/
/* Array of database columns which should be read and sent back to DataTables. Use a space where
* you want to insert a non-database field (for example a counter or static image)
*/
$aColumns = array( 'browser', 'platform', 'version', 'grade', 'engine' );
/* Indexed column (used for fast and accurate table cardinality) */
$sIndexColumn = "id";
/* DB table to use */
$sTable = "ajax";
/* Database connection information */
$gaSql['user'] = "";
$gaSql['password'] = "";
$gaSql['db'] = "";
$gaSql['server'] = "localhost";
/* REMOVE THIS LINE (it just includes my SQL connection user/pass) */
include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" );
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* If you just want to use the basic configuration for DataTables with PHP server-side, there is
* no need to edit below this line
*/
/*
* MySQL connection
*/
$gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password'] ) or $gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password'] ) or
die( 'Could not open connection to server' ); die( 'Could not open connection to server' );
mysql_select_db( $gaSql['db'], $gaSql['link'] ) or mysql_select_db( $gaSql['db'], $gaSql['link'] ) or
die( 'Could not select database '. $gaSql['db'] ); die( 'Could not select database '. $gaSql['db'] );
/* Paging */
/*
* Names - this is specific to server-side column re-ordering
*/
$aNames = explode( ',', $_GET['sNames'] );
/*
* Paging
*/
$sLimit = ""; $sLimit = "";
if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' ) if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
{ {
@ -16,38 +79,82 @@
mysql_real_escape_string( $_GET['iDisplayLength'] ); mysql_real_escape_string( $_GET['iDisplayLength'] );
} }
/* Ordering */
/*
* Ordering
*/
if ( isset( $_GET['iSortCol_0'] ) ) if ( isset( $_GET['iSortCol_0'] ) )
{ {
$sOrder = "ORDER BY "; $sOrder = "ORDER BY ";
for ( $i=0 ; $i<mysql_real_escape_string( $_GET['iSortingCols'] ) ; $i++ ) for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
{ {
$sOrder .= fnColumnToField(mysql_real_escape_string( $_GET['iSortCol_'.$i] ))." if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
".mysql_real_escape_string( $_GET['sSortDir_'.$i] ) .", "; {
$iColumnIndex = array_search( $aNames[intval( $_GET['iSortCol_'.$i] )], $aColumns );
$sOrder .= $aColumns[ $iColumnIndex ]."
".mysql_real_escape_string( $_GET['sSortDir_'.$i] ) .", ";
}
} }
$sOrder = substr_replace( $sOrder, "", -2 ); $sOrder = substr_replace( $sOrder, "", -2 );
if ( $sOrder == "ORDER BY" )
{
$sOrder = "";
}
} }
/* Filtering */
/*
* 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 = ""; $sWhere = "";
if ( $_GET['sSearch'] != "" ) if ( $_GET['sSearch'] != "" )
{ {
$sWhere = "WHERE engine LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ". $sWhere = "WHERE (";
"browser LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ". for ( $i=0 ; $i<count($aColumns) ; $i++ )
"platform LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ". {
"version LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ". $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ";
"grade LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%'"; }
$sWhere = substr_replace( $sWhere, "", -3 );
$sWhere .= ')';
} }
/* Individual column filtering */
for ( $i=0 ; $i<count($aColumns) ; $i++ )
{
if ( $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
{
if ( $sWhere == "" )
{
$sWhere = "WHERE ";
}
else
{
$sWhere .= " AND ";
}
$iColumnIndex = array_search( $aNames[$i], $aColumns );
$sWhere .= $aColumns[$iColumnIndex]." LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' ";
}
}
/*
* SQL queries
* Get data to display
*/
$sQuery = " $sQuery = "
SELECT SQL_CALC_FOUND_ROWS id, engine, browser, platform, version, grade SELECT SQL_CALC_FOUND_ROWS ".str_replace(" , ", " ", implode(", ", $aColumns))."
FROM ajax FROM $sTable
$sWhere $sWhere
$sOrder $sOrder
$sLimit $sLimit
"; ";
$rResult = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error()); $rResult = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
/* Data set length after filtering */
$sQuery = " $sQuery = "
SELECT FOUND_ROWS() SELECT FOUND_ROWS()
"; ";
@ -55,50 +162,45 @@
$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal); $aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
$iFilteredTotal = $aResultFilterTotal[0]; $iFilteredTotal = $aResultFilterTotal[0];
/* Total data set length */
$sQuery = " $sQuery = "
SELECT COUNT(id) SELECT COUNT(".$sIndexColumn.")
FROM ajax FROM $sTable
"; ";
$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error()); $rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultTotal = mysql_fetch_array($rResultTotal); $aResultTotal = mysql_fetch_array($rResultTotal);
$iTotal = $aResultTotal[0]; $iTotal = $aResultTotal[0];
$sOutput = '{';
$sOutput .= '"sEcho": '.intval($_GET['sEcho']).', '; /*
$sOutput .= '"iTotalRecords": '.$iTotal.', '; * Output
$sOutput .= '"iTotalDisplayRecords": '.$iFilteredTotal.', '; */
$sOutput .= '"sColumns": "platform,engine,browser,grade,version",'; $output = array(
$sOutput .= '"aaData": [ '; "sEcho" => intval($_GET['sEcho']),
"sColumns" => implode( ',', $aColumns ),
"iTotalRecords" => $iTotal,
"iTotalDisplayRecords" => $iFilteredTotal,
"aaData" => array()
);
while ( $aRow = mysql_fetch_array( $rResult ) ) while ( $aRow = mysql_fetch_array( $rResult ) )
{ {
$sOutput .= "["; $row = array();
$sOutput .= '"'.str_replace('"', '\"', $aRow['platform']).'",'; for ( $i=0 ; $i<count($aColumns) ; $i++ )
$sOutput .= '"'.str_replace('"', '\"', $aRow['engine']).'",'; {
$sOutput .= '"'.str_replace('"', '\"', $aRow['browser']).'",'; if ( $aColumns[$i] == "version" )
$sOutput .= '"'.str_replace('"', '\"', $aRow['grade']).'",'; {
if ( $aRow['version'] == "0" ) /* Special output formatting for 'version' column */
$sOutput .= '"-"'; $row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
else }
$sOutput .= '"'.str_replace('"', '\"', $aRow['version']).'"'; else if ( $aColumns[$i] != ' ' )
$sOutput .= "],"; {
/* General output */
$row[] = $aRow[ $aColumns[$i] ];
}
}
$output['aaData'][] = $row;
} }
$sOutput = substr_replace( $sOutput, "", -1 );
$sOutput .= '] }';
echo $sOutput; echo json_encode( $output );
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";
}
?> ?>

7
media/js/jquery.dataTables.js vendored
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@ -3158,13 +3158,12 @@
oSettings._iDisplayLength : -1 } ); oSettings._iDisplayLength : -1 } );
/* Column names */ /* Column names */
var aNames = [];
for ( i=0 ; i<iColumns ; i++ ) for ( i=0 ; i<iColumns ; i++ )
{ {
if ( oSettings.aoColumns[i].sName != '' ) aNames.push( oSettings.aoColumns[i].sName );
{
aoData.push( { "name": "sName"+i, "value": oSettings.aoColumns[i].sName } );
}
} }
aoData.push( { "name": "sNames", "value": aNames.join(',') } );
/* Filtering */ /* Filtering */
if ( oSettings.oFeatures.bFilter !== false ) if ( oSettings.oFeatures.bFilter !== false )