Quantcast
Viewing all articles
Browse latest Browse all 82136

How to configure Editor to work with Server-Side processing?

Hi Allan, and thank you for your great job!
I need to set up an editor enabled datatables with support for server side processing. The provided examples do not cover this configuration since the datasource specified are based on the datatables Php Libraries for both the ajaxUrl and the sAjaxSource parameters.
This is what I have tried:
1) set up a php/mysql server processed datasource and it works correctly when editor is not enabled;
2) set up a Datatables PHP Libraries based datasource and it works as expected when the editor is enabled;
3) set up an editor enabled datasource using different datasources for ajaxUrl and sAjaxSource: in this case datatables does not load any data and returns the error "JSON data from server could not be parsed".

Am I missing some part of the documentation?

Thank you


This is the code:

<script type="text/javascript" charset="utf-8" id="init-code">
			var editor; // use a global for the submit and return data rendering in the examples

			$(document).ready(function() {
				editor = new $.fn.dataTable.Editor( {
					"ajaxUrl": "php/browsers.php",
					"domTable": "#example",
					"fields": [ {
							"label": "Browser:",
							"name": "browser",
							"className": "allan"
						}, {
							"label": "Rendering engine:",
							"name": "engine"
						}, {
							"label": "Platform:",
							"name": "platform"
						}, {
							"label": "Version:",
							"name": "version"
						}, {
							"label": "CSS grade:",
							"name": "grade"
						}
					]
				} );

				dt = $('#example').dataTable( {
					"sDom": "Tfrtip",
					"sAjaxSource": "php/server_processing.php",
					"bServerSide": true,
					"sServerMethod": 'POST',
					"aoColumns": [
						{ "mData": "browser" },
						{ "mData": "engine" },
						{ "mData": "platform" },
						{ "mData": "version", "sClass": "center" },
						{ "mData": "grade", "sClass": "center" }
					],
					"oTableTools": {
						"sRowSelect": "multi",
						"aButtons": [
							{ "sExtends": "editor_create", "editor": editor },
							{ "sExtends": "editor_edit",   "editor": editor },
							{ "sExtends": "editor_remove", "editor": editor }
						]
					}
				} );
			} );
		</script>


SERVER_PROCESSING.PHP
<?php
	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * 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( 'engine', 'browser', 'platform', 'version', 'grade' );
	
	/* Indexed column (used for fast and accurate table cardinality) */
	$sIndexColumn = "id";
	
	/* DB table to use */
	$sTable = "ajax";
	
	/* Database connection information */
	$gaSql['user']       = "XXXXXXXX";
	$gaSql['password']   = "XXXXXXXX";
	$gaSql['db']         = "datatables";
	$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
	 */
	
	/* 
	 * Local functions
	 */
	function fatal_error ( $sErrorMessage = '' )
	{
		header( $_SERVER['SERVER_PROTOCOL'] .' 500 Internal Server Error' );
		die( $sErrorMessage );
	}

	
	/* 
	 * MySQL connection
	 */
	if ( ! $gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password']  ) )
	{
		fatal_error( 'Could not open connection to server' );
	}

	if ( ! mysql_select_db( $gaSql['db'], $gaSql['link'] ) )
	{
		fatal_error( 'Could not select database ' );
	}

	/* 
	 * Paging
	 */
	$sLimit = "";
	if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
	{
		$sLimit = "LIMIT ".intval( $_GET['iDisplayStart'] ).", ".
			intval( $_GET['iDisplayLength'] );
	}
	
	
	/*
	 * Ordering
	 */
	$sOrder = "";
	if ( isset( $_GET['iSortCol_0'] ) )
	{
		$sOrder = "ORDER BY  ";
		for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
		{
			if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
			{
				$sOrder .= "`".$aColumns[ intval( $_GET['iSortCol_'.$i] ) ]."` ".
					($_GET['sSortDir_'.$i]==='asc' ? 'asc' : 'desc') .", ";
			}
		}
		
		$sOrder = substr_replace( $sOrder, "", -2 );
		if ( $sOrder == "ORDER BY" )
		{
			$sOrder = "";
		}
	}
	
	
	/* 
	 * 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
	 */
	$sWhere = "";
	if ( isset($_GET['sSearch']) && $_GET['sSearch'] != "" )
	{
		$sWhere = "WHERE (";
		for ( $i=0 ; $i<count($aColumns) ; $i++ )
		{
			if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" )
			{
				$sWhere .= "`".$aColumns[$i]."` LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ";
			}
		}
		$sWhere = substr_replace( $sWhere, "", -3 );
		$sWhere .= ')';
	}
	
	/* Individual column filtering */
	for ( $i=0 ; $i<count($aColumns) ; $i++ )
	{
		if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
		{
			if ( $sWhere == "" )
			{
				$sWhere = "WHERE ";
			}
			else
			{
				$sWhere .= " AND ";
			}
			$sWhere .= "`".$aColumns[$i]."` LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' ";
		}
	}
	
	
	/*
	 * SQL queries
	 * Get data to display
	 */
	$sQuery = "
		SELECT SQL_CALC_FOUND_ROWS `".str_replace(" , ", " ", implode("`, `", $aColumns))."`
		FROM   $sTable
		$sWhere
		$sOrder
		$sLimit
		";
	$rResult = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
	
	/* Data set length after filtering */
	$sQuery = "
		SELECT FOUND_ROWS()
	";
	$rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
	$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
	$iFilteredTotal = $aResultFilterTotal[0];
	
	/* Total data set length */
	$sQuery = "
		SELECT COUNT(`".$sIndexColumn."`)
		FROM   $sTable
	";
	$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
	$aResultTotal = mysql_fetch_array($rResultTotal);
	$iTotal = $aResultTotal[0];
	
	
	/*
	 * Output
	 */
	$output = array(
		"sEcho" => intval($_GET['sEcho']),
		"iTotalRecords" => $iTotal,
		"iTotalDisplayRecords" => $iFilteredTotal,
		"aaData" => array()
	);
	
	while ( $aRow = mysql_fetch_array( $rResult ) )
	{
		$row = array();
		for ( $i=0 ; $i<count($aColumns) ; $i++ )
		{
			if ( $aColumns[$i] == "version" )
			{
				/* Special output formatting for 'version' column */
				$row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
			}
			else if ( $aColumns[$i] != ' ' )
			{
				/* General output */
				$row[] = $aRow[ $aColumns[$i] ];
			}
		}
		$output['aaData'][] = $row;
	}
	
	echo json_encode( $output );
?>

Viewing all articles
Browse latest Browse all 82136

Trending Articles