";
/* selection variant if set */
$variant = 'intersects';
if (isset($_REQUEST['variant'])) {
if (strcasecmp($_REQUEST['variant'],'contains') == 0) {
$variant = 'contains';
} else if (strcasecmp($_REQUEST['variant'],'inside') == 0) {
$variant = 'inside';
}
}
/* a filter expression to apply, in the form of an FDO SQL statement */
$filter = isset($_REQUEST['filter']) ? str_replace(array('*', '"'), array('%', "'"),html_entity_decode(urldecode( $_REQUEST['filter']))) : false;
//echo "\n";
/* a spatial filter in the form on a WKT geometry */
$spatialFilter = (isset($_REQUEST['spatialfilter']) && $_REQUEST['spatialfilter'] != '') ? urldecode($_REQUEST['spatialfilter']) : false;
//echo "spatial filter is $spatialFilter
";
if (!isset($mapName)) {
die('mapname not set');
}
if (isset($_SESSION['maps']) && isset($_SESSION['maps'][$mapName])) {
$oMap = ms_newMapObj($_SESSION['maps'][$mapName]);
}
/* add the spatial filter if provided. It is expected to come as a
WKT string, so we need to convert it to a shape */
if ($spatialFilter !== false ) {
$oSpatialFilter = ms_shapeObjFromWkt($spatialFilter);
}
/* if extending the current selection */
$bExtendSelection = isset($_REQUEST['extendselection']) && strcasecmp($_REQUEST['extendselection'], 'true') == 0;
if ($bExtendSelection) {
//TODO figure out how to load an existing selection here
$oMap->loadquery(getSessionSavePath()."query.qry");
}
$bComputedProperties = isset($_REQUEST['computed']) && strcasecmp($_REQUEST['computed'], 'true') == 0;
$bAllLayers = false;
$nLayers = count($layers);
$nSelections = 0;
if ($nLayers == 0) {
$nLayers = $oMap->numlayers;
$bAllLayers = true;
}
$result = NULL;
$result->hasSelection = false;
$result->layers = array();
for ($i=0; $i<$nLayers; $i++) {
if (!$bAllLayers) {
$oLayer = $oMap->GetLayerByName($layers[$i]);
} else {
$oLayer = $oMap->GetLayer($i);
}
$oLayer->set('tolerance', 0);
if ($oLayer->type == MS_LAYER_RASTER || $oLayer->type == MS_LAYER_QUERY ||
$oLayer->type == MS_LAYER_CIRCLE || $oLayer->type == MS_LAYER_CHART) {
continue;
}
if (@$oLayer->queryByShape($oSpatialFilter) == MS_SUCCESS) {
$result->hasSelection = true;
$layerName = $oLayer->name;
array_push($result->layers, $layerName);
$result->$layerName->featureCount = $oLayer->getNumResults();
//TODO: dump out the extents of the selection
}
if ($bExtendSelection) {
} else {
}
}
if ($bExtendSelection) {
}
header('Content-type: text/x-json');
header('X-JSON: true');
if ($result->hasSelection) {
$oMap->savequery(getSessionSavePath()."query.qry");
$result->queryFile = getSessionSavePath()."query.qry";
/*holds selection array*/
$properties = NULL;
$properties->layers = array();
$totalminx = 0;
$totalminy = 0;
$totalmaxx = 0;
$totalmaxy = 0;
$bFirstElement = 1;
$nLayers = $oMap->numlayers;
for ($i=0; $i<$nLayers; $i++) {
$oLayer = $oMap->GetLayer($i);
$numResults = $oLayer->getNumResults();
if ($numResults == 0){
continue;
}
$oLayer->open();
$layerName = $oLayer->name != "" ? $oLayer->name : "Layer_".$i;
array_push($properties->layers, $layerName);
$properties->$layerName->numelements = $numResults;
$properties->$layerName->propertynames = array();
$properties->$layerName->propertyvalues = array();
$properties->$layerName->propertytypes = array();
$properties->$layerName->values = array();
$properties->$layerName->metadatanames= array();
array_push($properties->$layerName->metadatanames, 'dimension');
array_push($properties->$layerName->metadatanames, 'bbox');
array_push($properties->$layerName->metadatanames, 'center');
array_push($properties->$layerName->metadatanames, 'area');
array_push($properties->$layerName->metadatanames, 'length');
/*get first shape to get the attributes*/
$oRes = $oLayer->getResult(0);
$oShape = $oLayer->getShape($oRes->tileindex,$oRes->shapeindex);
$selFields = array();
if (isset($_SESSION[$mapName][$layerName]['query_items'])) {
$aQueryItems = $_SESSION[$mapName][$layerName]['query_items'];
} else {
//token separator (for parsing displayed attributes on a query)
$tokenSeparator = ",";
// checking if metadata "query_include_items" is set
$metadataItems = $oLayer->getMetaData('query_include_items');
if ( ($metadataItems == "") || ($metadataItems == "all") ) {
while ( list($key,$val) = each($oShape->values) ) {
$aQueryItems[$key] = NULL;
}
} else {
$token = strtok($metadataItems, $tokenSeparator);
while ($token !== false) {
$aQueryItems[trim($token)] = NULL;
$token = strtok($tokenSeparator);
}
}
// checking if metadata "query_exclude_items" is set
$metadataItems = $oLayer->getMetaData('query_exclude_items');
if ($metadataItems != "") {
$token = strtok($metadataItems, $tokenSeparator);
while ($token !== false) {
if (array_key_exists($token, $aQueryItems)) {
unset($aQueryItems[$token]);
}
$token = strtok($tokenSeparator);
}
}
// get all alias
while ( list($key,$val) = each($aQueryItems) ) {
$keyAlias = $oLayer->getMetaData("query_".$key."_alias");
trim($keyAlias);
if ($keyAlias != "") {
$aQueryItems[$key] = $keyAlias;
}
}
$_SESSION[$mapName][$layerName]['query_items'] = $aQueryItems;
}
$oShape = $oLayer->getShape($oRes->tileindex,$oRes->shapeindex);
while ( list($key,$val) = each($oShape->values) ) {
if (array_key_exists($key, $aQueryItems)) {
array_push($selFields, $key);
//we check if an alias if provided
if (isset($aQueryItems[$key]) && ($aQueryItems[$key] != "")){
$key = $aQueryItems[$key];
}
array_push($properties->$layerName->propertynames, $key);
//TODO : we should define away to give alias to field names
array_push($properties->$layerName->propertyvalues, $key);
//TODO we do not know the types of the attributes in MS. Just output 0
//we shouls possibly use OGR to get the attributes
array_push($properties->$layerName->propertytypes, 0);
}
}
for ($iRes=0; $iRes < $numResults; $iRes++) {
$properties->$layerName->values[$iRes] = array();
$properties->$layerName->metadata[$iRes] = array();
$oRes = $oLayer->getResult($iRes);
$oShape = $oLayer->getShape($oRes->tileindex,$oRes->shapeindex);
//TODO : area, length and distance are not set
$minx = $oShape->bounds->minx;
$miny = $oShape->bounds->miny;
$maxx = $oShape->bounds->maxx;
$maxy = $oShape->bounds->maxy;
if ($bFirstElement) {
$bFirstElement = 0;
$totalminx = $minx;
$totalminy = $miny;
$totalmaxx = $maxx;
$totalmaxy = $maxy;
} else {
if ($totalminx > $minx) {
$totalminx = $minx;
}
if ($totalminy > $miny) {
$totalminy = $miny;
}
if ($totalmaxx < $maxx) {
$totalmaxx = $maxx;
}
if ($totalmaxy < $maxy) {
$totalmaxy = $maxy;
}
}
//metadata : TODO dimension, area, length and distance are not set
$dimension = 0;
$center = 0;
$area = 0;
$length = 0;
$bbox = $minx.','.$miny.','.$maxx.','.$maxy;
array_push($properties->$layerName->metadata[$iRes], $dimension);
array_push($properties->$layerName->metadata[$iRes], $bbox);
array_push($properties->$layerName->metadata[$iRes], $center);
array_push($properties->$layerName->metadata[$iRes], $area);
array_push($properties->$layerName->metadata[$iRes], $length);
//field values
for($iField=0; $iField < count($selFields); $iField++) {
$value = $oShape->values[$selFields[$iField]];
//$value = preg_replace( "/\r?\n/", "
", $value );
$value = str_replace("'", "\'", $value);
array_push($properties->$layerName->values[$iRes], $value);
}
}
$oLayer->close();
}
//extents
$properties->extents = NULL;
$properties->extents->minx = $totalminx;
$properties->extents->miny = $totalminy;
$properties->extents->maxx = $totalmaxx;
$properties->extents->maxy = $totalmaxy;
/*save selection in the session*/
$_SESSION['selection_array'] = $properties;
}
echo var2json($result);
?>