webapp/resources/datatables-1.9.4/examples/server_side/scripts/objects.php

   1 <?php
   2         /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   3          * Easy set variables
   4          */
   5
   6         /* Array of database columns which should be read and sent back to DataTables. Use a space where
   7          * you want to insert a non-database field (for example a counter or static image)
   8          */
   9         $aColumns = array( 'engine', 'browser', 'platform', 'version', 'grade' );
  10
  11         /* Indexed column (used for fast and accurate table cardinality) */
  12         $sIndexColumn = "id";
  13
  14         /* DB table to use */
  15         $sTable = "ajax";
  16
  17         /* Database connection information */
  18         $gaSql['user']       = "";
  19         $gaSql['password']   = "";
  20         $gaSql['db']         = "";
  21         $gaSql['server']     = "localhost";
  22
  23         /* REMOVE THIS LINE (it just includes my SQL connection user/pass) */
  24         include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" );
  25
  26
  27         /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  28          * If you just want to use the basic configuration for DataTables with PHP server-side, there is
  29          * no need to edit below this line
  30          */
  31
  32         /*
  33          * Local functions
  34          */
  35         function fatal_error ( $sErrorMessage = '' )
  36         {
  37                 header( $_SERVER['SERVER_PROTOCOL'] .' 500 Internal Server Error' );
  38                 die( $sErrorMessage );
  39         }
  40
  41
  42         /*
  43          * MySQL connection
  44          */
  45         if ( ! $gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password']  ) )
  46         {
  47                 fatal_error( 'Could not open connection to server' );
  48         }
  49
  50         if ( ! mysql_select_db( $gaSql['db'], $gaSql['link'] ) )
  51         {
  52                 fatal_error( 'Could not select database ' );
  53         }
  54
  55
  56         /*
  57          * Paging
  58          */
  59         $sLimit = "";
  60         if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
  61         {
  62                 $sLimit = "LIMIT ".intval( $_GET['iDisplayStart'] ).", ".
  63                         intval( $_GET['iDisplayLength'] );
  64         }
  65
  66
  67         /*
  68          * Ordering
  69          */
  70         $sOrder = "";
  71         if ( isset( $_GET['iSortCol_0'] ) )
  72         {
  73                 $sOrder = "ORDER BY  ";
  74                 for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
  75                 {
  76                         if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
  77                         {
  78                                 $iColumnIndex = array_search( $_GET['mDataProp_'.$_GET['iSortCol_'.$i]], $aColumns );
  79                                 $sOrder .= "`".$aColumns[ $iColumnIndex ]."` ".
  80                                         ($_GET['sSortDir_'.$i]==='asc' ? 'asc' : 'desc') .", ";
  81                         }
  82                 }
  83
  84                 $sOrder = substr_replace( $sOrder, "", -2 );
  85                 if ( $sOrder == "ORDER BY" )
  86                 {
  87                         $sOrder = "";
  88                 }
  89         }
  90
  91
  92         /*
  93          * Filtering
  94          * NOTE this does not match the built-in DataTables filtering which does it
  95          * word by word on any field. It's possible to do here, but concerned about efficiency
  96          * on very large tables, and MySQL's regex functionality is very limited
  97          */
  98         $sWhere = "";
  99         if ( isset($_GET['sSearch']) && $_GET['sSearch'] != "" )
 100         {
 101                 $sWhere = "WHERE (";
 102                 for ( $i=0 ; $i<count($aColumns) ; $i++ )
 103                 {
 104                         if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" )
 105                         {
 106                                 $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ";
 107                         }
 108                 }
 109                 $sWhere = substr_replace( $sWhere, "", -3 );
 110                 $sWhere .= ')';
 111         }
 112
 113         /* Individual column filtering */
 114         for ( $i=0 ; $i<count($aColumns) ; $i++ )
 115         {
 116                 if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
 117                 {
 118                         if ( $sWhere == "" )
 119                         {
 120                                 $sWhere = "WHERE ";
 121                         }
 122                         else
 123                         {
 124                                 $sWhere .= " AND ";
 125                         }
 126                         $iColumnIndex = array_search( $_GET['mDataProp_'.$i], $aColumns );
 127                         $sWhere .= $aColumns[$iColumnIndex]." LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' ";
 128                 }
 129         }
 130
 131
 132         /*
 133          * SQL queries
 134          * Get data to display
 135          */
 136         $sQuery = "
 137                 SELECT SQL_CALC_FOUND_ROWS ".str_replace(" , ", " ", implode(", ", $aColumns))."
 138                 FROM   $sTable
 139                 $sWhere
 140                 $sOrder
 141                 $sLimit
 142         ";
 143         $rResult = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
 144
 145         /* Data set length after filtering */
 146         $sQuery = "
 147                 SELECT FOUND_ROWS()
 148         ";
 149         $rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
 150         $aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
 151         $iFilteredTotal = $aResultFilterTotal[0];
 152
 153         /* Total data set length */
 154         $sQuery = "
 155                 SELECT COUNT(".$sIndexColumn.")
 156                 FROM   $sTable
 157         ";
 158         $rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
 159         $aResultTotal = mysql_fetch_array($rResultTotal);
 160         $iTotal = $aResultTotal[0];
 161
 162
 163         /*
 164          * Output
 165          */
 166         $output = array(
 167                 "sEcho" => intval($_GET['sEcho']),
 168                 "iTotalRecords" => $iTotal,
 169                 "iTotalDisplayRecords" => $iFilteredTotal,
 170                 "aaData" => array()
 171         );
 172
 173         while ( $aRow = mysql_fetch_array( $rResult ) )
 174         {
 175                 $row = array();
 176                 for ( $i=0 ; $i<count($aColumns) ; $i++ )
 177                 {
 178                         if ( $aColumns[$i] == "version" )
 179                         {
 180                                 /* Special output formatting for 'version' column */
 181                                 $row[ $aColumns[$i] ] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
 182                         }
 183                         else if ( $aColumns[$i] != ' ' )
 184                         {
 185                                 /* General output */
 186                                 $row[ $aColumns[$i] ] = $aRow[ $aColumns[$i] ];
 187                         }
 188                 }
 189                 $output['aaData'][] = $row;
 190         }
 191
 192         echo json_encode( $output );
 193 ?>