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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.
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
parent
e7ffbb13fd
commit
a6365b3f69
@ -1,14 +1,77 @@
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<?php
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/* MySQL connection */
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include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" ); /* ;-) */
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Readme...
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*
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* This script is basically the same as the server_processing.php script, but with a couple of
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* modifications to show how column reordering can be handled by DataTables. This is in two
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* parts:
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*
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* 1. Data from server to client - notice that the $aColumns array below is in a different
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* order to that from the array in server_processing.php, but DataTables will render the
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* table in the same order. This reordering is done on the client-side by using the sNames
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* parameter which is passed back, stating the order which the server is sending data back in.
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* DataTables will compaire this to the sName parameter for each column and reorder as needed.
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*
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* 2. Data from client to server - in order that the columns can be sent to the server in
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* any order (it is expected in this script that the server-side will always work with a static
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* array which is not reordered dynamically) DataTables will send the parameter 'sNames' which
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* like it's return counterpart is a comma seperated list of the column names, telling the
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* server-side what order the columns are being shown on the client-side. As such it is now
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* possible to realise what column sSearch_{i} (for example) refers to. This is done by a look
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* up of the aColumns array from the names sent in. Note that I've used the same names for the
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* db table columns and the html table columns to make things a little clearer, but this is not
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* required.
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*/
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Easy set variables
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*/
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/* Array of database columns which should be read and sent back to DataTables. Use a space where
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* you want to insert a non-database field (for example a counter or static image)
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*/
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$aColumns = array( 'browser', 'platform', 'version', 'grade', 'engine' );
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/* Indexed column (used for fast and accurate table cardinality) */
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$sIndexColumn = "id";
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/* DB table to use */
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$sTable = "ajax";
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/* Database connection information */
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$gaSql['user'] = "";
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$gaSql['password'] = "";
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$gaSql['db'] = "";
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$gaSql['server'] = "localhost";
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/* REMOVE THIS LINE (it just includes my SQL connection user/pass) */
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include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" );
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* If you just want to use the basic configuration for DataTables with PHP server-side, there is
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* no need to edit below this line
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*/
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/*
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* MySQL connection
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*/
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$gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password'] ) or
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die( 'Could not open connection to server' );
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mysql_select_db( $gaSql['db'], $gaSql['link'] ) or
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die( 'Could not select database '. $gaSql['db'] );
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/* Paging */
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/*
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* Names - this is specific to server-side column re-ordering
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*/
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$aNames = explode( ',', $_GET['sNames'] );
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/*
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* Paging
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*/
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$sLimit = "";
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if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
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{
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@ -16,38 +79,82 @@
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mysql_real_escape_string( $_GET['iDisplayLength'] );
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}
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/* Ordering */
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/*
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* Ordering
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*/
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if ( isset( $_GET['iSortCol_0'] ) )
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{
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$sOrder = "ORDER BY ";
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for ( $i=0 ; $i<mysql_real_escape_string( $_GET['iSortingCols'] ) ; $i++ )
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for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
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{
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$sOrder .= fnColumnToField(mysql_real_escape_string( $_GET['iSortCol_'.$i] ))."
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".mysql_real_escape_string( $_GET['sSortDir_'.$i] ) .", ";
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if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
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{
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$iColumnIndex = array_search( $aNames[intval( $_GET['iSortCol_'.$i] )], $aColumns );
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$sOrder .= $aColumns[ $iColumnIndex ]."
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".mysql_real_escape_string( $_GET['sSortDir_'.$i] ) .", ";
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}
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}
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$sOrder = substr_replace( $sOrder, "", -2 );
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if ( $sOrder == "ORDER BY" )
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{
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$sOrder = "";
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}
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}
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/* Filtering */
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/*
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* Filtering
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* NOTE this does not match the built-in DataTables filtering which does it
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* word by word on any field. It's possible to do here, but concerned about efficiency
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* on very large tables, and MySQL's regex functionality is very limited
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*/
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$sWhere = "";
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if ( $_GET['sSearch'] != "" )
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{
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$sWhere = "WHERE engine LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
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"browser LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
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"platform LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
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"version LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ".
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"grade LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%'";
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$sWhere = "WHERE (";
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for ( $i=0 ; $i<count($aColumns) ; $i++ )
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{
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$sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ";
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}
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$sWhere = substr_replace( $sWhere, "", -3 );
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$sWhere .= ')';
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}
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/* Individual column filtering */
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for ( $i=0 ; $i<count($aColumns) ; $i++ )
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{
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if ( $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
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{
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if ( $sWhere == "" )
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{
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$sWhere = "WHERE ";
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}
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else
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{
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$sWhere .= " AND ";
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}
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$iColumnIndex = array_search( $aNames[$i], $aColumns );
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$sWhere .= $aColumns[$iColumnIndex]." LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' ";
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}
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}
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/*
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* SQL queries
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* Get data to display
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*/
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$sQuery = "
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SELECT SQL_CALC_FOUND_ROWS id, engine, browser, platform, version, grade
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FROM ajax
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SELECT SQL_CALC_FOUND_ROWS ".str_replace(" , ", " ", implode(", ", $aColumns))."
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FROM $sTable
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$sWhere
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$sOrder
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$sLimit
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";
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$rResult = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
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/* Data set length after filtering */
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$sQuery = "
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SELECT FOUND_ROWS()
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";
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@ -55,50 +162,45 @@
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$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
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$iFilteredTotal = $aResultFilterTotal[0];
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/* Total data set length */
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$sQuery = "
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SELECT COUNT(id)
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FROM ajax
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SELECT COUNT(".$sIndexColumn.")
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FROM $sTable
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";
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$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
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$aResultTotal = mysql_fetch_array($rResultTotal);
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$iTotal = $aResultTotal[0];
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$sOutput = '{';
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$sOutput .= '"sEcho": '.intval($_GET['sEcho']).', ';
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$sOutput .= '"iTotalRecords": '.$iTotal.', ';
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$sOutput .= '"iTotalDisplayRecords": '.$iFilteredTotal.', ';
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$sOutput .= '"sColumns": "platform,engine,browser,grade,version",';
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$sOutput .= '"aaData": [ ';
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/*
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* Output
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*/
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$output = array(
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"sEcho" => intval($_GET['sEcho']),
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"sColumns" => implode( ',', $aColumns ),
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"iTotalRecords" => $iTotal,
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"iTotalDisplayRecords" => $iFilteredTotal,
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"aaData" => array()
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);
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while ( $aRow = mysql_fetch_array( $rResult ) )
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{
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$sOutput .= "[";
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$sOutput .= '"'.str_replace('"', '\"', $aRow['platform']).'",';
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$sOutput .= '"'.str_replace('"', '\"', $aRow['engine']).'",';
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$sOutput .= '"'.str_replace('"', '\"', $aRow['browser']).'",';
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$sOutput .= '"'.str_replace('"', '\"', $aRow['grade']).'",';
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if ( $aRow['version'] == "0" )
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$sOutput .= '"-"';
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else
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$sOutput .= '"'.str_replace('"', '\"', $aRow['version']).'"';
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$sOutput .= "],";
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$row = array();
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for ( $i=0 ; $i<count($aColumns) ; $i++ )
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{
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if ( $aColumns[$i] == "version" )
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{
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/* Special output formatting for 'version' column */
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$row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
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}
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else if ( $aColumns[$i] != ' ' )
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{
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/* General output */
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$row[] = $aRow[ $aColumns[$i] ];
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}
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}
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$output['aaData'][] = $row;
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}
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$sOutput = substr_replace( $sOutput, "", -1 );
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$sOutput .= '] }';
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echo $sOutput;
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function fnColumnToField( $i )
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{
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if ( $i == 0 )
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return "engine";
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else if ( $i == 1 )
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return "browser";
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else if ( $i == 2 )
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return "platform";
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else if ( $i == 3 )
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return "version";
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else if ( $i == 4 )
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return "grade";
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}
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echo json_encode( $output );
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?>
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7
media/js/jquery.dataTables.js
vendored
7
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@ -3158,13 +3158,12 @@
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oSettings._iDisplayLength : -1 } );
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/* Column names */
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var aNames = [];
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for ( i=0 ; i<iColumns ; i++ )
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{
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if ( oSettings.aoColumns[i].sName != '' )
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{
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aoData.push( { "name": "sName"+i, "value": oSettings.aoColumns[i].sName } );
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}
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aNames.push( oSettings.aoColumns[i].sName );
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}
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aoData.push( { "name": "sNames", "value": aNames.join(',') } );
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/* Filtering */
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if ( oSettings.oFeatures.bFilter !== false )
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