Mercurial > repos > saskia-hiltemann > ireport

comparison DataTables-1.9.4/examples/server_side/scripts/post.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( $_POST['iDisplayStart'] ) && $_POST['iDisplayLength'] != '-1' )
61 {
62 $sLimit = "LIMIT ".intval( $_POST['iDisplayStart'] ).", ".
63 intval( $_POST['iDisplayLength'] );
64 }
65
66
67 /*
68 * Ordering
69 */
70 if ( isset( $_POST['iSortCol_0'] ) )
71 {
72 $sOrder = "ORDER BY ";
73 for ( $i=0 ; $i<intval( $_POST['iSortingCols'] ) ; $i++ )
74 {
75 if ( $_POST[ 'bSortable_'.intval($_POST['iSortCol_'.$i]) ] == "true" )
76 {
77 $sOrder .= "`".$aColumns[ intval( $_POST['iSortCol_'.$i] ) ]."` ".
78 ($_POST['sSortDir_'.$i]==='asc' ? 'asc' : 'desc') .", ";
79 }
80 }
81
82 $sOrder = substr_replace( $sOrder, "", -2 );
83 if ( $sOrder == "ORDER BY" )
84 {
85 $sOrder = "";
86 }
87 }
88
89
90 /*
91 * Filtering
92 * NOTE this does not match the built-in DataTables filtering which does it
93 * word by word on any field. It's possible to do here, but concerned about efficiency
94 * on very large tables, and MySQL's regex functionality is very limited
95 */
96 $sWhere = "";
97 if ( $_POST['sSearch'] != "" )
98 {
99 $sWhere = "WHERE (";
100 for ( $i=0 ; $i<count($aColumns) ; $i++ )
101 {
102 if ( isset($_POST['bSearchable_'.$i]) && $_POST['bSearchable_'.$i] == "true" )
103 {
104 $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string( $_POST['sSearch'] )."%' OR ";
105 }
106 }
107 $sWhere = substr_replace( $sWhere, "", -3 );
108 $sWhere .= ')';
109 }
110
111 /* Individual column filtering */
112 for ( $i=0 ; $i<count($aColumns) ; $i++ )
113 {
114 if ( $_POST['bSearchable_'.$i] == "true" && $_POST['sSearch_'.$i] != '' )
115 {
116 if ( $sWhere == "" )
117 {
118 $sWhere = "WHERE ";
119 }
120 else
121 {
122 $sWhere .= " AND ";
123 }
124 $sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string($_POST['sSearch_'.$i])."%' ";
125 }
126 }
127
128
129 /*
130 * SQL queries
131 * Get data to display
132 */
133 $sQuery = "
134 SELECT SQL_CALC_FOUND_ROWS ".str_replace(" , ", " ", implode(", ", $aColumns))."
135 FROM $sTable
136 $sWhere
137 $sOrder
138 $sLimit
139 ";
140 $rResult = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
141
142 /* Data set length after filtering */
143 $sQuery = "
144 SELECT FOUND_ROWS()
145 ";
146 $rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
147 $aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
148 $iFilteredTotal = $aResultFilterTotal[0];
149
150 /* Total data set length */
151 $sQuery = "
152 SELECT COUNT(".$sIndexColumn.")
153 FROM $sTable
154 ";
155 $rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
156 $aResultTotal = mysql_fetch_array($rResultTotal);
157 $iTotal = $aResultTotal[0];
158
159
160 /*
161 * Output
162 */
163 $sOutput = '{';
164 $sOutput .= '"sEcho": '.intval($_POST['sEcho']).', ';
165 $sOutput .= '"iTotalRecords": '.$iTotal.', ';
166 $sOutput .= '"iTotalDisplayRecords": '.$iFilteredTotal.', ';
167 $sOutput .= '"aaData": [ ';
168 while ( $aRow = mysql_fetch_array( $rResult ) )
169 {
170 $sOutput .= "[";
171 for ( $i=0 ; $i<count($aColumns) ; $i++ )
172 {
173 if ( $aColumns[$i] == "version" )
174 {
175 /* Special output formatting for 'version' */
176 $sOutput .= ($aRow[ $aColumns[$i] ]=="0") ?
177 '"-",' :
178 '"'.str_replace('"', '\"', $aRow[ $aColumns[$i] ]).'",';
179 }
180 else if ( $aColumns[$i] != ' ' )
181 {
182 /* General output */
183 $sOutput .= '"'.str_replace('"', '\"', $aRow[ $aColumns[$i] ]).'",';
184 }
185 }
186
187 /*
188 * Optional Configuration:
189 * If you need to add any extra columns (add/edit/delete etc) to the table, that aren't in the
190 * database - you can do it here
191 */
192
193
194 $sOutput = substr_replace( $sOutput, "", -1 );
195 $sOutput .= "],";
196 }
197 $sOutput = substr_replace( $sOutput, "", -1 );
198 $sOutput .= '] }';
199
200 echo $sOutput;
201 ?>