| 1 | 85 | simandl | <?php |
| 2 | | | // Sample Pluggable datasource for PHP Weathermap 0.9 |
| 3 | | | // - read a pair of values from a database, and return it |
| 4 | | | |
| 5 | | | // TARGET dbplug:databasename:username:pass:hostkey |
| 6 | | | |
| 7 | | | class WeatherMapDataSource_dbsample extends WeatherMapDataSource { |
| 8 | | | |
| 9 | | | function Init(&$map) |
| 10 | | | { |
| 11 | | | if(! function_exists("mysql_real_escape_string") ) return FALSE; |
| 12 | | | if(! function_exists("mysql_connect") ) return FALSE; |
| 13 | | | |
| 14 | | | return(TRUE); |
| 15 | | | } |
| 16 | | | |
| 17 | | | function Recognise($targetstring) |
| 18 | | | { |
| 19 | | | if(preg_match("/^dbplug:([^:]+)$/",$targetstring,$matches)) |
| 20 | | | { |
| 21 | | | return TRUE; |
| 22 | | | } |
| 23 | | | else |
| 24 | | | { |
| 25 | | | return FALSE; |
| 26 | | | } |
| 27 | | | } |
| 28 | | | |
| 29 | | | function ReadData($targetstring, &$map, &$item) |
| 30 | | | { |
| 31 | | | $data[IN] = NULL; |
| 32 | | | $data[OUT] = NULL; |
| 33 | | | $data_time = 0; |
| 34 | | | |
| 35 | | | if(preg_match("/^dbplug:([^:]+)$/",$targetstring,$matches)) |
| 36 | | | { |
| 37 | | | $database_user = $map->get_hint('dbplug_dbuser'); |
| 38 | | | $database_pass = $map->get_hint('dbplug_dbpass'); |
| 39 | | | $database_name = $map->get_hint('dbplug_dbname'); |
| 40 | | | $database_host = $map->get_hint('dbplug_dbhost'); |
| 41 | | | |
| 42 | | | $key = mysql_real_escape_string($matches[1]); |
| 43 | | | |
| 44 | | | $SQL = "select in,out from table where host=$key LIMIT 1"; |
| 45 | | | if(mysql_connect($database_host,$database_user,$database_pass)) |
| 46 | | | { |
| 47 | | | if(mysql_select_db($database_name)) |
| 48 | | | { |
| 49 | | | $result = mysql_query($SQL); |
| 50 | | | if (!$result) |
| 51 | | | { |
| 52 | | | warn("dbsample ReadData: Invalid query: " . mysql_error()."\n"); |
| 53 | | | } |
| 54 | | | else |
| 55 | | | { |
| 56 | | | $row = mysql_fetch_assoc($result); |
| 57 | | | $data[IN] = $row['in']; |
| 58 | | | $data[OUT] = $row['out']; |
| 59 | | | } |
| 60 | | | } |
| 61 | | | else |
| 62 | | | { |
| 63 | | | warn("dbsample ReadData: failed to select database: ".mysql_error()."\n"); |
| 64 | | | } |
| 65 | | | } |
| 66 | | | else |
| 67 | | | { |
| 68 | | | warn("dbsample ReadData: failed to connect to database server: ".mysql_error()."\n"); |
| 69 | | | } |
| 70 | | | |
| 71 | | | $data_time = now(); |
| 72 | | | } |
| 73 | | | |
| 74 | | | |
| 75 | | | debug ("RRD ReadData: Returning (".($data[IN]===NULL?'NULL':$data[IN]).",".($data[OUT]===NULL?'NULL':$data[IN]).",$data_time)\n"); |
| 76 | | | |
| 77 | | | return( array($data[IN], $data[OUT], $data_time) ); |
| 78 | | | } |
| 79 | | | } |
| 80 | | | |
| 81 | | | // vim:ts=4:sw=4: |
| 82 | | | ?> |
