microcosm/model-changesets-sqlite.php at master · TimSC/microcosm · GitHub

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<?php

require_once('dbutils.php');

class ChangesetDatabaseSqlite extends GenericSqliteTable
{
	var $keys=array('cid'=>'INTEGER');
	var $dbname='changesets.db';
	var $tablename="changesets";

publicfunctionOpen($cid,$data,$displayName,$userId,$createTime)
	{
if(get_class($data)!='OsmChangeset')
thrownewException ("Expecting changeset, instead got ".get_class($data));

$c = array();
$data->attr['user'] = $displayName;
$data->attr['uid'] = $userId;
$data->attr['created_at'] = date('c',$createTime);
$data->attr['open'] = "true";

$c['data'] = $data;
$c['change'] = newOsmChange();

$this[(int)$cid] = $c;
//print_r($this[(int)$cid]);
return$cid;
	}

functionUpdate($cid,$data,$displayName,$userId)
	{
$c = $this[(int)$cid];
$c['data']->tags = $data->tags;
$this[(int)$cid] = $c;
	}

publicfunctionIsOpen($cid)
	{
$c = $this[(int)$cid];
if(is_null($c)) return -1;
return (strcmp($c['data']->attr['open'],"true")==0);
	}

publicfunctionGetContentObject($cid)
	{
$c = $this[(int)$cid];
return$c['change'];
	}

functionGetSize($cid)
	{
$changeset = $this[(int)$cid];
if(is_null($changeset)) returnnull;
//print_r($changeset);
$count = 0;
foreach($changeset['change']->dataas$data)
 {
$action = $data[0];
$els = $data[1];
$count = $count + count($els);
 }
return$count;
	}

functionAppendElement($cid, $action, $el)
	{
$changeset = $this[(int)$cid];
array_push($changeset['change']->data,array($action,array($el)));
$this[(int)$cid] = $changeset;
	}

functionGetClosedTime($cid)
	{
$changeset = $this[(int)$cid];
returnstrtotime($changeset['data']->attr['closed_at']);
	}

functionGetUid($cid)
	{
$c = $this[(int)$cid];
if(is_null($c)) returnnull;
//print_r($c['data']);
return$c['data']->attr['uid'];
	}

functionGetMetadata($cid)
	{
$c = $this[(int)$cid];
return$c['data'];
	}

functionClose($cid)
	{
$changeset = $this[(int)$cid];
$changeset['data']->attr['open'] = "false";
$changeset['data']->attr['closed_at'] = date('c',time());
$this[(int)$cid] = $changeset;
	}

functionQuery($user,$open,$timerange)
	{
$ids = $this->GetKeys();
$out = array();

//TODO This steps through the entire database, which is very slow for big databases
//TODO implement time range and other queries
foreach($idsas$cid)
 {
//print_r($this[$cid]);
$c = $this[$cid];
if(get_class($c['data'])!='OsmChangeset')
thrownewException ("Expecting changeset, but database returned a ".get_class($c['data']));
if(!is_null($user) and$user != $c['data']->attr['uid']) continue;
if(!is_null($open) and$open==1andstrcmp($c['data']->attr['open'],"true")!=0) continue;
if(!is_null($open) and$open==0andstrcmp($c['data']->attr['open'],"false")!=0) continue;
array_push($out,(int)$cid);
 }
return$out;
	}

functionExpandBbox($cid, $bbox)
	{
if($cid === Null)
thrownewException("Null changeset id");

//Input order min_lon,min_lat,max_lon,max_lat
if(!is_array($bbox)) thrownewException("Input bbox must be array");

//Get Changeset from database
$changeset = $this[(int)$cid];

//Check attributes exist
if (!isset($changeset['data']->attr['min_lon']))
$changeset['data']->attr['min_lon'] = $bbox[0];
if (!isset($changeset['data']->attr['min_lat']))
$changeset['data']->attr['min_lat'] = $bbox[1];
if (!isset($changeset['data']->attr['max_lon']))
$changeset['data']->attr['max_lon'] = $bbox[2];
if (!isset($changeset['data']->attr['max_lat']))
$changeset['data']->attr['max_lat'] = $bbox[3];

//Update size
if($bbox[0] < $changeset['data']->attr['min_lon'])
$changeset['data']->attr['min_lon'] = $bbox[0];
if($bbox[1] < $changeset['data']->attr['min_lat'])
$changeset['data']->attr['min_lat'] = $bbox[1];
if($bbox[2] > $changeset['data']->attr['max_lon'])
$changeset['data']->attr['max_lon'] = $bbox[2];
if($bbox[3] > $changeset['data']->attr['max_lat'])
$changeset['data']->attr['max_lat'] = $bbox[3];

//Insert data back into persistant database
$this[(int)$cid] = $changeset;

	}

}//End of class