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comparison DataTables-1.9.4/examples/server_side/scripts/objects_jsonp.php @ 0:ac5f9272033b draft

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author saskia-hiltemann
date Tue, 01 Jul 2014 11:42:23 -0400
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-1:000000000000 0:ac5f9272033b
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 $_GET['callback'].'('.json_encode( $output ).');';
193 ?>