echo "{\"attributes\":" . json_encode($result) . "}";
// Request = ask for field type
} else {
if ($operation == 'getattributetype') {
$attributeType = '';
$attributeName = $_REQUEST['attributename'];
if ($attributeName && $layerName) {
$msLayer = $map->getLayerByName($layerName);
if ($msLayer && ($msLayer->connectiontype == MS_POSTGIS || $msLayer->connectiontype == MS_ORACLESPATIAL)) {
// get dns string containing : type of database, user name, password, host and database :
$dsn = PluginsMapUtils::getDSNConnection($msLayer);
if ($dsn) {
// data substitution :
$data = PluginsMapUtils::getQueryParamsFromDataString($msLayer, false, true);
// DB :
$edb = new Easy_MDB2();
$edb->setDSN($dsn);
$edb->start();
// Query :
$db_table = $data['db_table'];
$mdb2FieldType = $edb->getFieldType($db_table, $attributeName);
switch ($mdb2FieldType) {
case 'integer':
case 'decimal':
case 'float':
case 'boolean':
$attributeType = 'N';
break;
case 'text':
case 'date':
case 'time':
public static function calculateExtent($map, $groups, $applyMapExtentIfNull = false, $addBuffer = false)
{
$mapExtent = ms_newrectObj();
$layers = getLayersByGroupOrLayerName($map, $groups);
foreach ($layers as $layer) {
$layerExtent = false;
if ($layer) {
if ($layer->connectiontype == MS_POSTGIS || $layer->connectiontype == MS_ORACLESPATIAL) {
//get dns string containing : type of database, user name, password, host and database.
$dsn = PluginsMapUtils::getDSNConnection($layer);
if ($dsn) {
// code from mapserver mailing list (by Armin Burger):
// get table and filter :
$data = PluginsMapUtils::getQueryParamsFromDataString($layer, false, false);
$mapLayerFilter = $data['mapLayerFilter'];
$fromTable = $data['fromTable'];
$geomFld = $data['geomFld'];
$sql = 'SELECT ST_xmin(extent) AS minx, ST_ymin(extent) AS miny, ST_xmax(extent) AS maxx, ST_ymax(extent) AS maxy ';
$sql .= "FROM (SELECT St_Extent({$geomFld}) AS extent FROM {$fromTable} ";
$sql .= ($mapLayerFilter ? "WHERE {$mapLayerFilter}" : '') . ' ';
$sql .= ') AS bar';
$sql .= ' WHERE extent IS NOT NULL';
pm_logDebug(4, "calculateExtent - sql:{$sql}");
// DB:
require_once dirname(__FILE__) . '/easyMDB2.inc.php';
$edb = new Easy_MDB2();
$edb->setDSN($dsn);
$edb->start();
$qresultE = $edb->selectByQuery($sql, '');
$resValues = $qresultE['values'][0];
if ($resValues) {
$resIsValid = true;
foreach ($resValues as $val) {
if (!isset($val) || $val == 0 || $val == -1) {
$resIsValid = false;
break;
}
}
if ($resIsValid) {
$layerExtent = ms_newRectObj();
$layerExtent->setExtent($resValues['minx'], $resValues['miny'], $resValues['maxx'], $resValues['maxy']);
}
}
}
} else {
if ($layer->type != MS_LAYER_RASTER && ($layer->connectiontype == MS_SHAPEFILE || $layer->connectiontype == MS_TILED_SHAPEFILE || $layer->connectiontype == MS_OGR)) {
// SHP layer, OGR layer
$layerExtent = @$layer->getExtent();
}
}
if ($layerExtent) {
// change projection
$mapProjStr = $map->getProjection();
$layerProjStr = $layer->getProjection();
if ($mapProjStr && $layerProjStr && $mapProjStr != $layerProjStr) {
if ($_SESSION['MS_VERSION'] < 6) {
$mapProjObj = ms_newprojectionobj($mapProjStr);
$layerProjObj = ms_newprojectionobj($layerProjStr);
} else {
$mapProjObj = new projectionObj($mapProjStr);
$layerProjObj = new projectionObj($layerProjStr);
}
$layerExtent->project($layerProjObj, $mapProjObj);
}
// add buffer around freshly calculated extent
if ($addBuffer) {
$minx = $layerExtent->minx;
$miny = $layerExtent->miny;
$maxx = $layerExtent->maxx;
$maxy = $layerExtent->maxy;
$pointBuffer = isset($_SESSION['pointBuffer']) ? $_SESSION['pointBuffer'] : 50;
$shapeQueryBuffer = isset($_SESSION['shapeQueryBuffer']) ? $_SESSION['shapeQueryBuffer'] : 0.01;
$buf = 0;
if ($layer->type == MS_LAYER_POINT || $layer->type == MS_LAYER_ANNOTATION) {
$buf = $pointBuffer;
// set buffer depending on dimensions of your coordinate system
} else {
if (isset($shapeQueryBuffer) && $shapeQueryBuffer > 0) {
$buf = $shapeQueryBuffer * (($maxx - $minx + ($maxy - $miny)) / 2);
}
}
if ($buf > 0) {
$minx -= $buf;
$miny -= $buf;
$maxx += $buf;
$maxy += $buf;
$layerExtent->setExtent($minx, $miny, $maxx, $maxy);
}
}
if ($mapExtent->minx == -1 && $mapExtent->miny == -1 && $mapExtent->maxx == -1 && $mapExtent->maxy == -1) {
$minx = $layerExtent->minx;
$miny = $layerExtent->miny;
$maxx = $layerExtent->maxx;
$maxy = $layerExtent->maxy;
} else {
$minx = $layerExtent->minx < $mapExtent->minx ? $layerExtent->minx : $mapExtent->minx;
$miny = $layerExtent->miny < $mapExtent->miny ? $layerExtent->miny : $mapExtent->miny;
$maxx = $layerExtent->maxx > $mapExtent->maxx ? $layerExtent->maxx : $mapExtent->maxx;
$maxy = $layerExtent->maxy > $mapExtent->maxy ? $layerExtent->maxy : $mapExtent->maxy;
}
$mapExtent->setExtent($minx, $miny, $maxx, $maxy);
}
}
}
if ($mapExtent->minx == -1 || $mapExtent->miny == -1 || $mapExtent->maxx == -1 || $mapExtent->maxy == -1) {
$mapExtent = $map->extent;
if (!$applyMapExtentIfNull) {
$mapExtent->setExtent(0, 0, 1, 1);
}
}
return $mapExtent;
}
