/
api_geo.php
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/
api_geo.php
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<?php
// Wrapper around Cloudant geo API
require_once (dirname(__FILE__) . '/couchsimple.php');
require_once (dirname(__FILE__) . '/lib.php');
require_once (dirname(__FILE__) . '/api_utils.php');
require_once (dirname(__FILE__) . '/elastic.php');
//--------------------------------------------------------------------------------------------------
function default_display()
{
echo "hi";
}
//--------------------------------------------------------------------------------------------------
function display_wkt($wkt, $limit = 200, $callback = '')
{
global $config;
global $couch;
$url = $config['couchdb_options']['prefix']
. $config['couchdb_options']['host']
. '/' . $config['couchdb_options']['database']
. '/_design/geodd/_geo/points?g=' . urlencode($wkt)
. '&relation=intersects'
. '&include_docs=true'
. '&limit=' . $limit;
//echo $url;
$json = get($url);
$obj = json_decode($json);
$obj->status = 200;
// trim excess?
api_output($obj, $callback);
}
//--------------------------------------------------------------------------------------------------
function display_elastic_geo($geojson, $limit=50, $callback='')
{
global $config;
global $elastic;
$query_json = '{
"size" : <LIMIT>,
"query": {
"bool" : {
"must" : {
"match_all" : {}
},
"filter" : {
"geo_shape" : {
"search_data.geometry" : {
"shape": <SHAPE>
}
}
}
}
}
}';
$query_json = str_replace('<LIMIT>', $limit, $query_json);
$geojson_obj = json_decode($geojson);
$query_json = str_replace('<SHAPE>', json_encode($geojson_obj->geometry), $query_json);
//echo $query_json ;
$resp = $elastic->send('POST', '_search?pretty', $post_data = $query_json);
$obj = json_decode($resp);
// Add status
$obj->status = 200;
api_output($obj, $callback);
}
//--------------------------------------------------------------------------------------------------
function main()
{
$callback = '';
$handled = false;
// If no query parameters
if (count($_GET) == 0)
{
default_display();
exit(0);
}
if (isset($_GET['callback']))
{
$callback = $_GET['callback'];
}
if (!$handled)
{
if (isset($_GET['wkt']))
{
display_wkt($_GET['wkt'], 100, $callback);
$handled = true;
}
if (isset($_GET['geojson']))
{
display_elastic_geo($_GET['geojson'], 50, $callback);
$handled = true;
}
}
}
main();
?>