Mercurial > repos > saskia-hiltemann > ireport
diff DataTables-1.9.4/examples/server_side/scripts/post.php @ 0:ac5f9272033b draft
first upload
author | saskia-hiltemann |
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date | Tue, 01 Jul 2014 11:42:23 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DataTables-1.9.4/examples/server_side/scripts/post.php Tue Jul 01 11:42:23 2014 -0400 @@ -0,0 +1,201 @@ +<?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'] = ""; + $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 + */ + + /* + * 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( $_POST['iDisplayStart'] ) && $_POST['iDisplayLength'] != '-1' ) + { + $sLimit = "LIMIT ".intval( $_POST['iDisplayStart'] ).", ". + intval( $_POST['iDisplayLength'] ); + } + + + /* + * Ordering + */ + if ( isset( $_POST['iSortCol_0'] ) ) + { + $sOrder = "ORDER BY "; + for ( $i=0 ; $i<intval( $_POST['iSortingCols'] ) ; $i++ ) + { + if ( $_POST[ 'bSortable_'.intval($_POST['iSortCol_'.$i]) ] == "true" ) + { + $sOrder .= "`".$aColumns[ intval( $_POST['iSortCol_'.$i] ) ]."` ". + ($_POST['sSortDir_'.$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 ( $_POST['sSearch'] != "" ) + { + $sWhere = "WHERE ("; + for ( $i=0 ; $i<count($aColumns) ; $i++ ) + { + if ( isset($_POST['bSearchable_'.$i]) && $_POST['bSearchable_'.$i] == "true" ) + { + $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string( $_POST['sSearch'] )."%' OR "; + } + } + $sWhere = substr_replace( $sWhere, "", -3 ); + $sWhere .= ')'; + } + + /* Individual column filtering */ + for ( $i=0 ; $i<count($aColumns) ; $i++ ) + { + if ( $_POST['bSearchable_'.$i] == "true" && $_POST['sSearch_'.$i] != '' ) + { + if ( $sWhere == "" ) + { + $sWhere = "WHERE "; + } + else + { + $sWhere .= " AND "; + } + $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string($_POST['sSearch_'.$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 + */ + $sOutput = '{'; + $sOutput .= '"sEcho": '.intval($_POST['sEcho']).', '; + $sOutput .= '"iTotalRecords": '.$iTotal.', '; + $sOutput .= '"iTotalDisplayRecords": '.$iFilteredTotal.', '; + $sOutput .= '"aaData": [ '; + while ( $aRow = mysql_fetch_array( $rResult ) ) + { + $sOutput .= "["; + for ( $i=0 ; $i<count($aColumns) ; $i++ ) + { + if ( $aColumns[$i] == "version" ) + { + /* Special output formatting for 'version' */ + $sOutput .= ($aRow[ $aColumns[$i] ]=="0") ? + '"-",' : + '"'.str_replace('"', '\"', $aRow[ $aColumns[$i] ]).'",'; + } + else if ( $aColumns[$i] != ' ' ) + { + /* General output */ + $sOutput .= '"'.str_replace('"', '\"', $aRow[ $aColumns[$i] ]).'",'; + } + } + + /* + * Optional Configuration: + * If you need to add any extra columns (add/edit/delete etc) to the table, that aren't in the + * database - you can do it here + */ + + + $sOutput = substr_replace( $sOutput, "", -1 ); + $sOutput .= "],"; + } + $sOutput = substr_replace( $sOutput, "", -1 ); + $sOutput .= '] }'; + + echo $sOutput; +?> \ No newline at end of file