110 lines
3.0 KiB
PHP
110 lines
3.0 KiB
PHP
<?php
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set_time_limit(0);
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error_reporting(-1);
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ini_set("display_errors",'On');
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ini_set('error_log','/tmp/wsn.log');
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$db = new PDO('pgsql:host=210.77.68.40;dbname=observation', "gis", "gispassword");
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$file=array();
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$basepath='/disk1/WestDC/wsndata/';
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//接收uuid，只生成这个对应的数据
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if($argc==2)
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{
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$uuid = $argv[1];
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}else{
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die("Error in parameter.");
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}
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$sql = "SELECT distinct ys.fld_site_id as site,si.fld_name from tbl_yuan_site ys left join tbl_site_info si on ys.fld_site_id=si.fld_site_id where ys.uuid='$uuid'";
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$rs = $db->query($sql);
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$sites = $rs->fetchAll();
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//先为该数据创建一个文件夹
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$datapath=$basepath.$uuid;
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if (!file_exists($datapath))
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{
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$result = mkdir($datapath);
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}
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//有需要生成的数据
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if($sites)
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{
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foreach($sites as $k=>$v )
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{
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//逐个site生成
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$site = $v['site'];
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//获取观测点的名称
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$sitename= $v['fld_name'];
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//在该文件夹下面再建立一个观测点文件夹
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$sitepath=$datapath.DIRECTORY_SEPARATOR.$sitename;
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if (!file_exists($sitepath))
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{
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$result = mkdir($sitepath);
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}
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//获取变量名称
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$sql="select distinct va.fld_name from tbl_site_sensor_variable ssv left join tbl_variable_info va on ssv.fld_variable_id=va.fld_variable_id
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WHERE ssv.fld_site_id=$site order by va.fld_name";
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$sth=$db->query($sql);
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$rs=$sth->fetchAll();
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if (!$rs) continue;
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$head = "Time";
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$sql2= "select * from crosstab('SELECT v.fld_time as time,va.fld_name as variablename,v.fld_value as value
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FROM tbl_value v left join tbl_variable_info va on v.fld_variable_id=va.fld_variable_id
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WHERE v.fld_site_id=$site ORDER BY time',
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'select distinct va.fld_name from tbl_variable_info va left join tbl_value v on v.fld_variable_id=va.fld_variable_id
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WHERE v.fld_site_id=$site order by va.fld_name')
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as ct(time timestamp without time zone";
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foreach($rs as $k=>$var)
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{
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$head.=", ".$var['fld_name'];
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$sql2.=",v".$k." real";
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}
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$head.="\n";
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$sql2.=")";
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//获取数据
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$sth2 = $db->query($sql2);
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$html="";
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$datastart=true;
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$start="";
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while ($v=$sth2->fetch())
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{
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//组装数据
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if ($datastart)
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{
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$start=$v['time'];
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$endtime=date("Y-m-d",strtotime($start)+24*3600);
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$datastart=false;
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$html="";
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}
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if ($v['time']>=$start && $v['time']<$endtime)
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{
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$html.=$v['time'];
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foreach ($rs as $k=>$var)
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$html.=",".$v['v'.$k];
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$html.="\n";
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} elseif ($v['time']>=$endtime) {
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//写入文件
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$resulttime=date("Ymd",strtotime($start));
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$fp = fopen($sitepath.DIRECTORY_SEPARATOR.$sitename.$resulttime.".CSV","w+");
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fwrite($fp,$head.$html); //写入数据
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fclose($fp); //关闭文件句柄
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$datastart=true;
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}
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}
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if (!$datastart)
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{
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//写入最后的文件
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$resulttime=date("Ymd",strtotime($start));
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$fp = fopen($sitepath.DIRECTORY_SEPARATOR.$sitename.$resulttime.".CSV","w+");
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fwrite($fp,$head.$html); //写入数据
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fclose($fp); //关闭文件句柄
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}
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print $sitename."\r\n";
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}
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} |